PDB Short entry for 1M48 HEADER CYTOKINE 02-JUL-02 1M48 TITLE CRYSTAL STRUCTURE OF HUMAN IL-2 COMPLEXED WITH (R)-N-[2-[1- TITLE 2 (AMINOIMINOMETHYL)-3-PIPERIDINYL]-1-OXOETHYL]-4-(PHENYLETHYNYL)-L- TITLE 3 PHENYLALANINE METHYL ESTER COMPND MOL_ID: 1; COMPND 2 MOLECULE: INTERLEUKIN-2; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: IL-2, T-CELL GROWTH FACTOR, TCGF, ALDESLEUKIN; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PRSET KEYWDS INTERLEUKIN-2, FOUR-HELIX BUNDLE, SMALL MOLECULE COMPLEX, CYTOKINE EXPDTA X-RAY DIFFRACTION AUTHOR M.A.ARKIN,M.RANDAL,W.L.DELANO,J.HYDE,T.N.LUONG,J.D.OSLOB,D.R.RAPHAEL, AUTHOR 2 L.TAYLOR,J.WANG,R.S.MCDOWELL,J.A.WELLS,A.C.BRAISTED REVDAT 4 11-OCT-17 1M48 1 REMARK REVDAT 3 24-FEB-09 1M48 1 VERSN REVDAT 2 25-FEB-03 1M48 1 AUTHOR JRNL REMARK REVDAT 1 31-JUL-02 1M48 0 JRNL AUTH M.A.ARKIN,M.RANDAL,W.L.DELANO,J.HYDE,T.N.LUONG,J.D.OSLOB, JRNL AUTH 2 D.R.RAPHAEL,L.TAYLOR,J.WANG,R.S.MCDOWELL,J.A.WELLS, JRNL AUTH 3 A.C.BRAISTED JRNL TITL BINDING OF SMALL MOLECULES TO AN ADAPTIVE PROTEIN-PROTEIN JRNL TITL 2 INTERFACE JRNL REF PROC.NATL.ACAD.SCI.USA V. 100 1603 2003 JRNL REFN ISSN 0027-8424 JRNL PMID 12582206 JRNL DOI 10.1073/PNAS.252756299 REMARK 2 REMARK 2 RESOLUTION. 1.95 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.19 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.95 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.4 REMARK 3 NUMBER OF REFLECTIONS : 19081 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) : 0.200 REMARK 3 R VALUE (WORKING SET) : 0.197 REMARK 3 FREE R VALUE : 0.269 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 974 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 15 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.95 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.02 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1751 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 94.30 REMARK 3 BIN R VALUE (WORKING SET) : 0.3030 REMARK 3 BIN FREE R VALUE SET COUNT : 95 REMARK 3 BIN FREE R VALUE : 0.3890 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2021 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 66 REMARK 3 SOLVENT ATOMS : 214 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 23.70 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 33.03 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.84000 REMARK 3 B22 (A**2) : 0.71000 REMARK 3 B33 (A**2) : -1.55000 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): 0.190 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.186 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.954 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.903 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2125 ; 0.008 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2864 ; 1.422 ; 2.016 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 245 ; 2.778 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 342 ; 0.121 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1501 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1082 ; 0.220 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 121 ; 0.112 ; 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): 89 ; 0.341 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 20 ; 0.286 ; 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): 1244 ; 3.259 ; 2.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2030 ; 5.027 ; 5.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 881 ; 3.744 ; 2.500 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 834 ; 5.354 ; 5.000 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 : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 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 1M48 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-JUL-02. REMARK 100 THE DEPOSITION ID IS D_1000016577. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-FEB-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.0 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 : YALE MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : D*TREK REMARK 200 DATA SCALING SOFTWARE : D*TREK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20214 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.950 REMARK 200 RESOLUTION RANGE LOW (A) : 10.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.1 REMARK 200 DATA REDUNDANCY : 2.650 REMARK 200 R MERGE (I) : 0.05900 REMARK 200 R SYM (I) : 0.05900 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 11.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.95 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.3 REMARK 200 DATA REDUNDANCY IN SHELL : 2.40 REMARK 200 R MERGE FOR SHELL (I) : 0.35700 REMARK 200 R SYM FOR SHELL (I) : 0.35700 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: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.25 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 25.23500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 46.54000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.01000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 46.54000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.23500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.01000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 ALA A 1 REMARK 465 PRO A 2 REMARK 465 THR A 3 REMARK 465 SER A 75 REMARK 465 LYS A 76 REMARK 465 ASN A 77 REMARK 465 PHE A 78 REMARK 465 HIS A 79 REMARK 465 LEU A 80 REMARK 465 THR A 133 REMARK 465 ALA B 1 REMARK 465 PRO B 2 REMARK 465 THR B 3 REMARK 465 HIS B 79 REMARK 465 LEU B 80 REMARK 465 ARG B 81 REMARK 465 PRO B 82 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ARG A 81 CG CD NE CZ NH1 NH2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 NH2 ARG B 83 CD2 TYR B 107 3555 1.78 REMARK 500 NH2 ARG A 83 OE1 GLU A 110 4455 2.14 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 ALA A 73 46.03 -104.29 REMARK 500 ASP B 84 62.51 -107.73 REMARK 500 LEU B 132 61.76 -108.53 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 FRG A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FRG B 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1M47 RELATED DB: PDB REMARK 900 1M47 IS THE CRYSTAL STRUCTURE OF HUMAN INTERLEUKIN-2 REMARK 900 RELATED ID: 1M49 RELATED DB: PDB REMARK 900 1M49 IS THE CRYSTAL STRUCTURE OF HUMAN INTERLEUKIN-2 COMPLEXED WITH REMARK 900 SP-1985 REMARK 900 RELATED ID: 1M4A RELATED DB: PDB REMARK 900 1M4A IS THE CRYSTAL STRUCTURE OF HUMAN INTERLEUKIN-2 Y31C REMARK 900 COVALENTLY MODIFIED AT C31 WITH (1H-INDOL-3-YL)-(2-MERCAPTO- REMARK 900 ETHOXYIMINO)-ACETIC ACID REMARK 900 RELATED ID: 1M4B RELATED DB: PDB REMARK 900 1M4B IS THE CRYSTAL STRUCTURE OF HUMAN INTERLEUKIN-2 K43C REMARK 900 COVALENTLY MODIFIED AT C43 WITH 2-[2-(2-CYCLOHEXYL-2-GUANIDINO- REMARK 900 ACETYLAMINO)-ACETYLAMINO]-N-(3-MERCAPTO-PROPYL)-PROPIONAMIDE REMARK 900 RELATED ID: 1M4C RELATED DB: PDB REMARK 900 1M4C IS THE CRYSTAL STRUCTURE OF HUMAN INTERLEUKIN-2 DBREF 1M48 A 1 133 UNP P60568 IL2_HUMAN 21 153 DBREF 1M48 B 1 133 UNP P60568 IL2_HUMAN 21 153 SEQRES 1 A 133 ALA PRO THR SER SER SER THR LYS LYS THR GLN LEU GLN SEQRES 2 A 133 LEU GLU HIS LEU LEU LEU ASP LEU GLN MET ILE LEU ASN SEQRES 3 A 133 GLY ILE ASN ASN TYR LYS ASN PRO LYS LEU THR ARG MET SEQRES 4 A 133 LEU THR PHE LYS PHE TYR MET PRO LYS LYS ALA THR GLU SEQRES 5 A 133 LEU LYS HIS LEU GLN CYS LEU GLU GLU GLU LEU LYS PRO SEQRES 6 A 133 LEU GLU GLU VAL LEU ASN LEU ALA GLN SER LYS ASN PHE SEQRES 7 A 133 HIS LEU ARG PRO ARG ASP LEU ILE SER ASN ILE ASN VAL SEQRES 8 A 133 ILE VAL LEU GLU LEU LYS GLY SER GLU THR THR PHE MET SEQRES 9 A 133 CYS GLU TYR ALA ASP GLU THR ALA THR ILE VAL GLU PHE SEQRES 10 A 133 LEU ASN ARG TRP ILE THR PHE CYS GLN SER ILE ILE SER SEQRES 11 A 133 THR LEU THR SEQRES 1 B 133 ALA PRO THR SER SER SER THR LYS LYS THR GLN LEU GLN SEQRES 2 B 133 LEU GLU HIS LEU LEU LEU ASP LEU GLN MET ILE LEU ASN SEQRES 3 B 133 GLY ILE ASN ASN TYR LYS ASN PRO LYS LEU THR ARG MET SEQRES 4 B 133 LEU THR PHE LYS PHE TYR MET PRO LYS LYS ALA THR GLU SEQRES 5 B 133 LEU LYS HIS LEU GLN CYS LEU GLU GLU GLU LEU LYS PRO SEQRES 6 B 133 LEU GLU GLU VAL LEU ASN LEU ALA GLN SER LYS ASN PHE SEQRES 7 B 133 HIS LEU ARG PRO ARG ASP LEU ILE SER ASN ILE ASN VAL SEQRES 8 B 133 ILE VAL LEU GLU LEU LYS GLY SER GLU THR THR PHE MET SEQRES 9 B 133 CYS GLU TYR ALA ASP GLU THR ALA THR ILE VAL GLU PHE SEQRES 10 B 133 LEU ASN ARG TRP ILE THR PHE CYS GLN SER ILE ILE SER SEQRES 11 B 133 THR LEU THR HET FRG A 301 33 HET FRG B 302 33 HETNAM FRG 2-[3-METHYL-4-(N-METHYL-GUANIDINO)-BUTYRYLAMINO]-3-(4- HETNAM 2 FRG PHENYLETHYNYL-PHENYL)-PROPIONIC ACID METHYL ESTER HETSYN FRG (R)-N-[2-[1-(AMINOIMINOMETHYL)-3-PIPERIDINYL]-1- HETSYN 2 FRG OXOETHYL]-4-(PHENYLETHYNYL)-L-PHENYLALANINE METHYL HETSYN 3 FRG ESTER FORMUL 3 FRG 2(C26 H30 N4 O3) FORMUL 5 HOH *214(H2 O) HELIX 1 1 SER A 5 ASN A 29 1 25 HELIX 2 2 LYS A 32 LEU A 40 1 9 HELIX 3 3 GLU A 52 HIS A 55 5 4 HELIX 4 4 LEU A 56 GLU A 61 1 6 HELIX 5 5 GLU A 62 ALA A 73 1 12 HELIX 6 6 ARG A 81 GLY A 98 1 18 HELIX 7 7 THR A 113 THR A 131 1 19 HELIX 8 8 SER B 4 ASN B 30 1 27 HELIX 9 9 PRO B 34 LEU B 40 1 7 HELIX 10 10 GLU B 52 HIS B 55 5 4 HELIX 11 11 LEU B 56 GLU B 61 1 6 HELIX 12 12 GLU B 62 SER B 75 1 14 HELIX 13 13 ASP B 84 GLY B 98 1 15 HELIX 14 14 THR B 113 LEU B 132 1 20 SSBOND 1 CYS A 58 CYS A 105 1555 1555 2.07 SSBOND 2 CYS B 58 CYS B 105 1555 1555 2.04 SITE 1 AC1 16 LYS A 35 ARG A 38 MET A 39 THR A 41 SITE 2 AC1 16 PHE A 42 LYS A 43 PHE A 44 TYR A 45 SITE 3 AC1 16 THR A 51 GLU A 62 PRO A 65 LEU A 72 SITE 4 AC1 16 ALA A 73 SER A 127 HOH A 307 HOH A 357 SITE 1 AC2 20 GLU A 60 LYS A 64 GLU A 67 ARG A 83 SITE 2 AC2 20 ILE A 86 SER A 87 ASN A 90 VAL A 91 SITE 3 AC2 20 LYS B 35 THR B 41 PHE B 42 LYS B 43 SITE 4 AC2 20 PHE B 44 TYR B 45 GLU B 62 PRO B 65 SITE 5 AC2 20 LEU B 72 HOH B 335 HOH B 336 HOH B 375 CRYST1 50.470 58.020 93.080 90.00 90.00 90.00 P 21 21 21 8 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 0.019814 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017235 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010743 0.00000