PDB Short entry for 3C9J
HEADER    MEMBRANE PROTEIN                        15-FEB-08   3C9J              
TITLE     THE CRYSTAL STRUCTURE OF TRANSMEMBRANE DOMAIN OF M2 PROTEIN AND       
TITLE    2 AMANTADINE COMPLEX                                                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTON CHANNEL PROTEIN M2, TRANSMEMBRANE SEGMENT;          
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 FRAGMENT: RESIDUES 22-46;                                            
COMPND   5 SYNONYM: MATRIX PROTEIN 2;                                           
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES;                                                       
COMPND   8 OTHER_DETAILS: COMPLEXED WITH AMANTADINE, RESIDUE 308                
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: OCCURS BNATURALLY IN INFLUENZA A VIRUS                
KEYWDS    PROTON CHANNEL, ION CHANNEL, M2TM, M2-AMANTADINE COMPLEX, MEMBRANE    
KEYWDS   2 PROTEIN                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.L.STOUFFER,R.ACHARYA,D.SALOM                                        
REVDAT   6   03-APR-24 3C9J    1       REMARK                                   
REVDAT   5   21-FEB-24 3C9J    1       REMARK                                   
REVDAT   4   20-OCT-21 3C9J    1       REMARK SEQADV                            
REVDAT   3   13-JUL-11 3C9J    1       VERSN                                    
REVDAT   2   24-FEB-09 3C9J    1       VERSN                                    
REVDAT   1   11-MAR-08 3C9J    0                                                
JRNL        AUTH   A.L.STOUFFER,R.ACHARYA,D.SALOM,A.S.LEVINE,L.D.COSTANZO,      
JRNL        AUTH 2 C.S.SOTO,V.TERESHKO,V.NANDA,S.STAYROOK,W.F.DEGRADO           
JRNL        TITL   STRUCTURAL BASIS FOR THE FUNCTION AND INHIBITION OF AN       
JRNL        TITL 2 INFLUENZA VIRUS PROTON CHANNEL                               
JRNL        REF    NATURE                        V. 451   596 2008              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   18235504                                                     
JRNL        DOI    10.1038/NATURE06528                                          
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2                                           
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 15.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 91.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 1530                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.293                           
REMARK   3   R VALUE            (WORKING SET) : 0.291                           
REMARK   3   FREE R VALUE                     : 0.317                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 154                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 3.50                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.59                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 74                           
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 64.84                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3030                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 9                            
REMARK   3   BIN FREE R VALUE                    : 0.2790                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 772                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 11                                      
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : LIKELY RESIDUAL                                     
REMARK   3   FROM WILSON PLOT           (A**2) : 63.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 35.15                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.46000                                              
REMARK   3    B22 (A**2) : -2.02000                                             
REMARK   3    B33 (A**2) : 1.56000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.844         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.687         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 95.716        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.865                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.851                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   797 ; 0.029 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1097 ; 2.165 ; 2.015       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):    96 ; 3.541 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    20 ;41.455 ;22.000       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   136 ;20.118 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     4 ;14.353 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   156 ; 0.110 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   516 ; 0.010 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   397 ; 0.334 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):   589 ; 0.362 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    29 ; 0.160 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    29 ; 0.355 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     2 ; 0.243 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):   510 ; 0.396 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   816 ; 0.432 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   325 ; 0.651 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   281 ; 1.165 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : 3                                 
REMARK   3                                                                      
REMARK   3  NCS GROUP NUMBER               : 1                                  
REMARK   3     CHAIN NAMES                    : A B                             
REMARK   3     NUMBER OF COMPONENTS NCS GROUP : 1                               
REMARK   3       COMPONENT C  SSSEQI  TO  C   SSSEQI   CODE                     
REMARK   3           1     A      1       A      23      1                      
REMARK   3           1     B      1       B      23      1                      
REMARK   3                   GROUP CHAIN        COUNT   RMS     WEIGHT          
REMARK   3   TIGHT POSITIONAL   1    A    (A):    174 ;  0.40 ;  0.05           
REMARK   3   TIGHT THERMAL      1    A (A**2):    174 ;  0.15 ;  0.50           
REMARK   3                                                                      
REMARK   3  NCS GROUP NUMBER               : 2                                  
REMARK   3     CHAIN NAMES                    : A C                             
REMARK   3     NUMBER OF COMPONENTS NCS GROUP : 1                               
REMARK   3       COMPONENT C  SSSEQI  TO  C   SSSEQI   CODE                     
REMARK   3           1     A      1       A      23      1                      
REMARK   3           1     C      1       C      23      1                      
REMARK   3                   GROUP CHAIN        COUNT   RMS     WEIGHT          
REMARK   3   TIGHT POSITIONAL   2    A    (A):    174 ;  0.35 ;  0.05           
REMARK   3   TIGHT THERMAL      2    A (A**2):    174 ;  0.14 ;  0.50           
REMARK   3                                                                      
REMARK   3  NCS GROUP NUMBER               : 3                                  
REMARK   3     CHAIN NAMES                    : A D                             
REMARK   3     NUMBER OF COMPONENTS NCS GROUP : 1                               
REMARK   3       COMPONENT C  SSSEQI  TO  C   SSSEQI   CODE                     
REMARK   3           1     A      1       A      23      1                      
REMARK   3           1     D      1       D      23      1                      
REMARK   3                   GROUP CHAIN        COUNT   RMS     WEIGHT          
REMARK   3   TIGHT POSITIONAL   3    A    (A):    174 ;  0.45 ;  0.05           
REMARK   3   TIGHT THERMAL      3    A (A**2):    174 ;  0.17 ;  0.50           
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 1                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 4                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     1        A    25                          
REMARK   3    RESIDUE RANGE :   B     1        B    25                          
REMARK   3    RESIDUE RANGE :   C     1        C    25                          
REMARK   3    RESIDUE RANGE :   D     1        D    25                          
REMARK   3    ORIGIN FOR THE GROUP (A): -14.2696  14.8826  -0.5157              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2588 T22:   0.2360                                     
REMARK   3      T33:   0.1137 T12:   0.0273                                     
REMARK   3      T13:   0.0044 T23:   0.0055                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   5.2007 L22:   6.4697                                     
REMARK   3      L33:   0.1547 L12:   0.3516                                     
REMARK   3      L13:  -0.8314 L23:  -0.4312                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.1308 S12:  -0.4044 S13:   0.2209                       
REMARK   3      S21:   0.0673 S22:   0.1975 S23:   0.1282                       
REMARK   3      S31:  -0.3913 S32:   0.3921 S33:  -0.0667                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3C9J COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-FEB-08.                  
REMARK 100 THE DEPOSITION ID IS D_1000046511.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-DEC-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.3                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU                             
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : OSMIC MIRRORS                      
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MAR SCANNER 345 MM PLATE           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 1848                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 15.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 92.4                               
REMARK 200  DATA REDUNDANCY                : 4.200                              
REMARK 200  R MERGE                    (I) : 0.10500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.3000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.61                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.70                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.36200                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.100                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: POLYALA, SINGLE ALPHA HELIX OF LENGTH 23 RESIDUES    
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 59.42                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.03                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: SAMPLE SOLUTION: 0.8MM PROTEIN, 0.6MM    
REMARK 280  AMANTADINE, 32MM N-OCTYL-BETA-D-GLUCOPYRANOSIDE AND 5% W/V          
REMARK 280  XYLITOL. RESERVOIR SOLUTION:50MM TRIS-HCL, 500MM MGCL2, 30MM        
REMARK 280  NICL2, 22% PEG 350 MME, PH 5.3, VAPOR DIFFUSION, HANGING DROP,      
REMARK 280  TEMPERATURE 298.0K                                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       30.19850            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       28.91650            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       30.19850            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       28.91650            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3050 ANGSTROM**2                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                            
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    ARG D  24   CZ    ARG D  24   NH1     0.092                       
REMARK 500    LEU D  25   C     LEU D  25   O       0.188                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP B  23   CB  -  CG  -  OD1 ANGL. DEV. =   5.4 DEGREES          
REMARK 500    ASP C   3   CB  -  CG  -  OD2 ANGL. DEV. =   5.9 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASP A   3      159.93    -48.30                                   
REMARK 500    ILE A  21       -0.25    -58.16                                   
REMARK 500    ARG A  24       45.31   -156.52                                   
REMARK 500    ASP D  23      -68.50   -137.69                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 308 B 101                 
DBREF  3C9J A    1    25  UNP    O70632   M2_I97A1        22     46             
DBREF  3C9J B    1    25  UNP    O70632   M2_I97A1        22     46             
DBREF  3C9J C    1    25  UNP    O70632   M2_I97A1        22     46             
DBREF  3C9J D    1    25  UNP    O70632   M2_I97A1        22     46             
SEQADV 3C9J ALA A   13  UNP  O70632    GLY    34 ENGINEERED MUTATION            
SEQADV 3C9J ALA B   13  UNP  O70632    GLY    34 ENGINEERED MUTATION            
SEQADV 3C9J ALA C   13  UNP  O70632    GLY    34 ENGINEERED MUTATION            
SEQADV 3C9J ALA D   13  UNP  O70632    GLY    34 ENGINEERED MUTATION            
SEQRES   1 A   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE ALA          
SEQRES   2 A   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
SEQRES   1 B   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE ALA          
SEQRES   2 B   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
SEQRES   1 C   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE ALA          
SEQRES   2 C   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
SEQRES   1 D   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE ALA          
SEQRES   2 D   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
HET    308  B 101      11                                                       
HETNAM     308 (3S,5S,7S)-TRICYCLO[3.3.1.1~3,7~]DECAN-1-AMINE                   
HETSYN     308 AMANTADINE                                                       
FORMUL   5  308    C10 H17 N                                                    
HELIX    1   1 ASP A    3  LEU A   19  1                                  17    
HELIX    2   2 ASP B    3  ARG B   24  1                                  22    
HELIX    3   3 PRO C    4  ARG C   24  1                                  21    
HELIX    4   4 ASP D    3  SER D   10  1                                   8    
HELIX    5   5 SER D   10  LEU D   15  1                                   6    
HELIX    6   6 LEU D   15  LEU D   22  1                                   8    
SITE     1 AC1  4 ALA B   9  SER B  10  SER C  10  SER D  10                    
CRYST1   60.397   57.833   38.105  90.00  90.00  90.00 P 21 21 2    16          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.016557  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.017291  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.026243        0.00000