PDB Short entry for 7TAA HEADER HYDROLASE 06-OCT-97 7TAA TITLE FAMILY 13 ALPHA AMYLASE IN COMPLEX WITH ACARBOSE COMPND MOL_ID: 1; COMPND 2 MOLECULE: TAKA AMYLASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.2.1.1 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ASPERGILLUS ORYZAE; SOURCE 3 ORGANISM_TAXID: 5062 KEYWDS HYDROLASE, GLYCOSYL HYDROLASE, TAKA, AMYLASE, ACARBOSE EXPDTA X-RAY DIFFRACTION AUTHOR G.J.DAVIES,A.M.BRZOZOWSKI REVDAT 2 24-FEB-09 7TAA 1 VERSN REVDAT 1 25-NOV-98 7TAA 0 JRNL AUTH A.M.BRZOZOWSKI,G.J.DAVIES JRNL TITL STRUCTURE OF THE ASPERGILLUS ORYZAE ALPHA-AMYLASE JRNL TITL 2 COMPLEXED WITH THE INHIBITOR ACARBOSE AT 2.0 A JRNL TITL 3 RESOLUTION. JRNL REF BIOCHEMISTRY V. 36 10837 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9283074 JRNL DOI 10.1021/BI970539I REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.98 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.98 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 3 NUMBER OF REFLECTIONS : 31015 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.159 REMARK 3 FREE R VALUE : 0.236 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1553 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3688 REMARK 3 NUCLEIC ACID ATOMS : NULL REMARK 3 HETEROGEN ATOMS : 66 REMARK 3 SOLVENT ATOMS : 465 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL 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): NULL 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 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.014 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.033 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.037 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.136 ; 0.150 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.176 ; 0.300 REMARK 3 MULTIPLE TORSION (A) : 0.184 ; 0.300 REMARK 3 H-BOND (X...Y) (A) : 0.173 ; 0.300 REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 4.300 ; 7.000 REMARK 3 STAGGERED (DEGREES) : 18.300; 20.000 REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 3.266 ; 4.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 3.941 ; 6.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 4.183 ; 6.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.423 ; 8.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7TAA COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 1995 REMARK 200 TEMPERATURE (KELVIN) : 120 REMARK 200 PH : 7.5 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 : LONG MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : AGROVATA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 63935 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.980 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 200 DATA REDUNDANCY : 3.700 REMARK 200 R MERGE (I) : 0.08800 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 12.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.98 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.09 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.70 REMARK 200 R MERGE FOR SHELL (I) : 0.29100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 5.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NATIVE STRUCTURE REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 18% MM PEG 5000, 5MM CALCIUM REMARK 280 CHLORIDE, 0.1M HEPES BUFFER, PH 7.5. METHOD: HANGING DROP REMARK 280 VAPOUR DIFFUSION. THE NATIVE CRYSTALS WERE SOAKED FOR 6 HOURS REMARK 280 IN STABILIZING SOLUTION CONTAINING 15 MM OF ACARBOSE., VAPOR REMARK 280 DIFFUSION - HANGING DROP 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 25.52000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 66.78000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.59150 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 66.78000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 25.52000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.59150 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: 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 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 SER A 477 REMARK 465 SER A 478 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O HOH A 554 O HOH A 592 1.98 REMARK 500 O HOH A 554 O HOH A 684 2.05 REMARK 500 REMARK 500 REMARK: NULL 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 O HOH A 570 O HOH A 762 3655 2.09 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 ARG A 18 NE - CZ - NH1 ANGL. DEV. = 3.9 DEGREES REMARK 500 ARG A 21 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 ASP A 50 CB - CG - OD1 ANGL. DEV. = 5.5 DEGREES REMARK 500 TYR A 94 CB - CG - CD2 ANGL. DEV. = -5.8 DEGREES REMARK 500 TYR A 94 CB - CG - CD1 ANGL. DEV. = 4.2 DEGREES REMARK 500 GLU A 109 OE1 - CD - OE2 ANGL. DEV. = 8.3 DEGREES REMARK 500 ASP A 206 CB - CG - OD1 ANGL. DEV. = -6.7 DEGREES REMARK 500 CYS A 283 CA - CB - SG ANGL. DEV. = 10.4 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 PHE A 19 -60.68 -92.75 REMARK 500 CYS A 30 84.39 -150.65 REMARK 500 ALA A 78 48.53 -86.23 REMARK 500 TRP A 83 67.45 -115.12 REMARK 500 SER A 141 20.75 -71.72 REMARK 500 ASP A 168 -159.49 -153.23 REMARK 500 THR A 207 44.27 39.79 REMARK 500 ASP A 340 124.91 -37.20 REMARK 500 ALA A 456 149.62 -176.89 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 831 DISTANCE = 5.17 ANGSTROMS REMARK 525 HOH A 909 DISTANCE = 5.62 ANGSTROMS REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 480 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 210 O REMARK 620 2 GLU A 162 O 80.3 REMARK 620 3 ASP A 175 OD2 163.3 83.2 REMARK 620 4 HOH A 505 O 80.7 70.4 91.2 REMARK 620 5 ASN A 121 OD1 77.2 154.9 119.5 116.2 REMARK 620 6 ASP A 175 OD1 139.4 116.0 52.4 139.0 76.1 REMARK 620 7 HOH A 492 O 116.4 128.3 72.4 65.5 72.7 83.7 REMARK 620 8 HOH A 507 O 78.2 76.6 100.6 143.2 88.0 70.8 151.2 REMARK 620 N 1 2 3 4 5 6 7 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ABC A 479 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 480 DBREF 7TAA A 1 478 UNP P10529 AMYA_ASPOR 22 499 SEQRES 1 A 478 ALA THR PRO ALA ASP TRP ARG SER GLN SER ILE TYR PHE SEQRES 2 A 478 LEU LEU THR ASP ARG PHE ALA ARG THR ASP GLY SER THR SEQRES 3 A 478 THR ALA THR CYS ASN THR ALA ASP GLN LYS TYR CYS GLY SEQRES 4 A 478 GLY THR TRP GLN GLY ILE ILE ASP LYS LEU ASP TYR ILE SEQRES 5 A 478 GLN GLY MET GLY PHE THR ALA ILE TRP ILE THR PRO VAL SEQRES 6 A 478 THR ALA GLN LEU PRO GLN THR THR ALA TYR GLY ASP ALA SEQRES 7 A 478 TYR HIS GLY TYR TRP GLN GLN ASP ILE TYR SER LEU ASN SEQRES 8 A 478 GLU ASN TYR GLY THR ALA ASP ASP LEU LYS ALA LEU SER SEQRES 9 A 478 SER ALA LEU HIS GLU ARG GLY MET TYR LEU MET VAL ASP SEQRES 10 A 478 VAL VAL ALA ASN HIS MET GLY TYR ASP GLY ALA GLY SER SEQRES 11 A 478 SER VAL ASP TYR SER VAL PHE LYS PRO PHE SER SER GLN SEQRES 12 A 478 ASP TYR PHE HIS PRO PHE CYS PHE ILE GLN ASN TYR GLU SEQRES 13 A 478 ASP GLN THR GLN VAL GLU ASP CYS TRP LEU GLY ASP ASN SEQRES 14 A 478 THR VAL SER LEU PRO ASP LEU ASP THR THR LYS ASP VAL SEQRES 15 A 478 VAL LYS ASN GLU TRP TYR ASP TRP VAL GLY SER LEU VAL SEQRES 16 A 478 SER ASN TYR SER ILE ASP GLY LEU ARG ILE ASP THR VAL SEQRES 17 A 478 LYS HIS VAL GLN LYS ASP PHE TRP PRO GLY TYR ASN LYS SEQRES 18 A 478 ALA ALA GLY VAL TYR CYS ILE GLY GLU VAL LEU ASP GLY SEQRES 19 A 478 ASP PRO ALA TYR THR CYS PRO TYR GLN ASN VAL MET ASP SEQRES 20 A 478 GLY VAL LEU ASN TYR PRO ILE TYR TYR PRO LEU LEU ASN SEQRES 21 A 478 ALA PHE LYS SER THR SER GLY SER MET ASP ASP LEU TYR SEQRES 22 A 478 ASN MET ILE ASN THR VAL LYS SER ASP CYS PRO ASP SER SEQRES 23 A 478 THR LEU LEU GLY THR PHE VAL GLU ASN HIS ASP ASN PRO SEQRES 24 A 478 ARG PHE ALA SER TYR THR ASN ASP ILE ALA LEU ALA LYS SEQRES 25 A 478 ASN VAL ALA ALA PHE ILE ILE LEU ASN ASP GLY ILE PRO SEQRES 26 A 478 ILE ILE TYR ALA GLY GLN GLU GLN HIS TYR ALA GLY GLY SEQRES 27 A 478 ASN ASP PRO ALA ASN ARG GLU ALA THR TRP LEU SER GLY SEQRES 28 A 478 TYR PRO THR ASP SER GLU LEU TYR LYS LEU ILE ALA SER SEQRES 29 A 478 ALA ASN ALA ILE ARG ASN TYR ALA ILE SER LYS ASP THR SEQRES 30 A 478 GLY PHE VAL THR TYR LYS ASN TRP PRO ILE TYR LYS ASP SEQRES 31 A 478 ASP THR THR ILE ALA MET ARG LYS GLY THR ASP GLY SER SEQRES 32 A 478 GLN ILE VAL THR ILE LEU SER ASN LYS GLY ALA SER GLY SEQRES 33 A 478 ASP SER TYR THR LEU SER LEU SER GLY ALA GLY TYR THR SEQRES 34 A 478 ALA GLY GLN GLN LEU THR GLU VAL ILE GLY CYS THR THR SEQRES 35 A 478 VAL THR VAL GLY SER ASP GLY ASN VAL PRO VAL PRO MET SEQRES 36 A 478 ALA GLY GLY LEU PRO ARG VAL LEU TYR PRO THR GLU LYS SEQRES 37 A 478 LEU ALA GLY SER LYS ILE CYS SER SER SER HET ABC A 479 64 HET CA A 480 1 HETNAM ABC MODIFIED ACARBOSE HEXASACCHARIDE HETNAM CA CALCIUM ION FORMUL 2 ABC C37 H63 N O26 FORMUL 3 CA CA 2+ FORMUL 4 HOH *465(H2 O) HELIX 1 1 PRO A 3 SER A 8 1 6 HELIX 2 2 THR A 16 PHE A 19 1 4 HELIX 3 3 THR A 32 ASP A 34 5 3 HELIX 4 4 TRP A 42 MET A 55 1 14 HELIX 5 5 ALA A 97 ARG A 110 1 14 HELIX 6 6 GLY A 129 SER A 131 5 3 HELIX 7 7 TYR A 134 VAL A 136 5 3 HELIX 8 8 GLN A 143 TYR A 145 5 3 HELIX 9 9 GLN A 158 ASP A 163 1 6 HELIX 10 10 ASP A 181 TYR A 198 1 18 HELIX 11 11 VAL A 208 HIS A 210 5 3 HELIX 12 12 LYS A 213 ALA A 223 1 11 HELIX 13 13 PRO A 236 ASN A 244 1 9 HELIX 14 14 TYR A 252 LYS A 263 1 12 HELIX 15 15 MET A 269 ASP A 282 1 14 HELIX 16 16 SER A 286 LEU A 288 5 3 HELIX 17 17 PHE A 301 TYR A 304 1 4 HELIX 18 18 ILE A 308 LEU A 320 1 13 HELIX 19 19 GLN A 331 GLN A 333 5 3 HELIX 20 20 THR A 347 SER A 350 5 4 HELIX 21 21 GLU A 357 LYS A 375 1 19 HELIX 22 22 GLU A 467 LEU A 469 5 3 SHEET 1 A 6 PRO A 325 TYR A 328 0 SHEET 2 A 6 SER A 10 LEU A 14 1 N ILE A 11 O PRO A 325 SHEET 3 A 6 ALA A 59 ILE A 62 1 N ALA A 59 O TYR A 12 SHEET 4 A 6 TYR A 113 VAL A 118 1 N TYR A 113 O ILE A 60 SHEET 5 A 6 GLY A 202 ILE A 205 1 N GLY A 202 O VAL A 116 SHEET 6 A 6 TYR A 226 GLY A 229 1 N TYR A 226 O LEU A 203 SHEET 1 B 6 THR A 441 THR A 444 0 SHEET 2 B 6 GLN A 433 GLU A 436 -1 N GLU A 436 O THR A 441 SHEET 3 B 6 ARG A 461 PRO A 465 -1 N TYR A 464 O THR A 435 SHEET 4 B 6 ILE A 405 SER A 410 -1 N ILE A 408 O ARG A 461 SHEET 5 B 6 THR A 393 LYS A 398 -1 N LYS A 398 O ILE A 405 SHEET 6 B 6 TRP A 385 ASP A 390 -1 N ASP A 390 O THR A 393 SHEET 1 C 2 TYR A 419 LEU A 423 0 SHEET 2 C 2 VAL A 451 MET A 455 -1 N MET A 455 O TYR A 419 SSBOND 1 CYS A 30 CYS A 38 1555 1555 2.05 SSBOND 2 CYS A 150 CYS A 164 1555 1555 2.07 SSBOND 3 CYS A 240 CYS A 283 1555 1555 1.93 SSBOND 4 CYS A 440 CYS A 475 1555 1555 1.98 LINK CA CA A 480 O HIS A 210 1555 1555 2.54 LINK CA CA A 480 O GLU A 162 1555 1555 2.51 LINK CA CA A 480 OD2 ASP A 175 1555 1555 2.54 LINK CA CA A 480 O HOH A 505 1555 1555 2.76 LINK CA CA A 480 OD1 ASN A 121 1555 1555 2.52 LINK CA CA A 480 OD1 ASP A 175 1555 1555 2.54 LINK CA CA A 480 O HOH A 492 1555 1555 2.41 LINK CA CA A 480 O HOH A 507 1555 1555 2.46 CISPEP 1 LYS A 138 PRO A 139 0 8.63 CISPEP 2 ASP A 340 PRO A 341 0 7.94 SITE 1 AC1 26 GLN A 35 TYR A 82 TRP A 83 HIS A 122 SITE 2 AC1 26 TYR A 155 ARG A 204 ASP A 206 THR A 207 SITE 3 AC1 26 LYS A 209 HIS A 210 GLU A 230 LEU A 232 SITE 4 AC1 26 ASP A 233 GLY A 234 TYR A 256 HIS A 296 SITE 5 AC1 26 ASP A 297 ASP A 340 ARG A 344 HOH A 513 SITE 6 AC1 26 HOH A 537 HOH A 563 HOH A 653 HOH A 693 SITE 7 AC1 26 HOH A 722 HOH A 751 SITE 1 AC2 7 ASN A 121 GLU A 162 ASP A 175 HIS A 210 SITE 2 AC2 7 HOH A 492 HOH A 505 HOH A 507 CRYST1 51.040 67.183 133.560 90.00 90.00 90.00 P 21 21 21 4 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 0.019592 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014885 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007487 0.00000