HEADER HYDROLASE 13-MAY-19 6K21 TITLE PYROPHOSPHATASE FROM ACINETOBACTER BAUMANNII COMPND MOL_ID: 1; COMPND 2 MOLECULE: INORGANIC PYROPHOSPHATASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PYROPHOSPHATE PHOSPHO-HYDROLASE,PPASE; COMPND 5 EC: 3.6.1.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ACINETOBACTER BAUMANNII; SOURCE 3 ORGANISM_TAXID: 470; SOURCE 4 GENE: PPA; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PYROPHOSPHATASE FROM ACINETOBACTER BAUMANNII, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR J.SU REVDAT 2 27-MAR-24 6K21 1 REMARK REVDAT 1 02-OCT-19 6K21 0 JRNL AUTH Y.SI,X.WANG,G.YANG,T.YANG,Y.LI,G.J.AYALA,X.LI,H.WANG,J.SU JRNL TITL CRYSTAL STRUCTURES OF PYROPHOSPHATASE FROM ACINETOBACTER JRNL TITL 2 BAUMANNII: SNAPSHOTS OF PYROPHOSPHATE BINDING AND JRNL TITL 3 IDENTIFICATION OF A PHOSPHORYLATED ENZYME INTERMEDIATE. JRNL REF INT J MOL SCI V. 20 2019 JRNL REFN ESSN 1422-0067 JRNL PMID 31500178 JRNL DOI 10.3390/IJMS20184394 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.12_2829 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.90 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 21720 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.179 REMARK 3 R VALUE (WORKING SET) : 0.175 REMARK 3 FREE R VALUE : 0.213 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.210 REMARK 3 FREE R VALUE TEST SET COUNT : 2000 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 19.8979 - 4.7993 0.98 1529 155 0.1676 0.1657 REMARK 3 2 4.7993 - 3.8181 0.99 1443 147 0.1304 0.1604 REMARK 3 3 3.8181 - 3.3381 1.00 1432 145 0.1491 0.1931 REMARK 3 4 3.3381 - 3.0340 1.00 1422 144 0.1759 0.2076 REMARK 3 5 3.0340 - 2.8172 1.00 1401 141 0.1952 0.2387 REMARK 3 6 2.8172 - 2.6515 0.99 1401 143 0.2100 0.2496 REMARK 3 7 2.6515 - 2.5190 1.00 1395 141 0.2116 0.2583 REMARK 3 8 2.5190 - 2.4095 1.00 1394 142 0.2023 0.2582 REMARK 3 9 2.4095 - 2.3169 1.00 1393 142 0.1961 0.2455 REMARK 3 10 2.3169 - 2.2371 1.00 1383 140 0.2008 0.2731 REMARK 3 11 2.2371 - 2.1672 1.00 1403 141 0.1847 0.2786 REMARK 3 12 2.1672 - 2.1053 1.00 1367 139 0.1903 0.2351 REMARK 3 13 2.1053 - 2.0500 1.00 1382 141 0.1976 0.2391 REMARK 3 14 2.0500 - 2.0000 1.00 1375 139 0.1914 0.2345 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.200 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 19.770 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.68 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.009 1377 REMARK 3 ANGLE : 0.908 1879 REMARK 3 CHIRALITY : 0.061 207 REMARK 3 PLANARITY : 0.005 246 REMARK 3 DIHEDRAL : 2.925 830 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6K21 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 22-MAY-19. REMARK 100 THE DEPOSITION ID IS D_1300012175. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 19-JUN-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL18U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.98 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 S 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21726 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 19.900 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 9.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 9.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.05 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT 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 (%): 69.46 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MALIC ACID, VAPOR DIFFUSION, HANGING REMARK 280 DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/2 REMARK 290 6555 X-Y,X,Z+1/2 REMARK 290 7555 Y,X,-Z REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z REMARK 290 10555 -Y,-X,-Z+1/2 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-Z+1/2 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 50.38800 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 50.38800 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 50.38800 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 50.38800 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 50.38800 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 50.38800 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 14830 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 39210 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -210.0 KCAL/MOL 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 BIOMT1 2 -0.500000 -0.866025 0.000000 -51.40650 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 89.03867 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 -102.81300 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 0.500000 -0.866025 0.000000 0.00000 REMARK 350 BIOMT2 4 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 -1.000000 -50.38800 REMARK 350 BIOMT1 5 -1.000000 0.000000 0.000000 -102.81300 REMARK 350 BIOMT2 5 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 5 0.000000 0.000000 -1.000000 -50.38800 REMARK 350 BIOMT1 6 0.500000 0.866025 0.000000 -51.40650 REMARK 350 BIOMT2 6 0.866025 -0.500000 0.000000 89.03867 REMARK 350 BIOMT3 6 0.000000 0.000000 -1.000000 -50.38800 REMARK 450 REMARK 450 SOURCE REMARK 450 THE PROTEIN WAS FROM A STRAIN OF ACINETOBACTER BAUMANNII FROM A REMARK 450 HOSPITAL. THE SEQUENCE REFERENCE USED IS FROM A DIFFERENT SPECIES REMARK 450 ACINETOBACTER URSINGII NIPH 706. 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 GLY A -3 REMARK 465 SER A -2 REMARK 465 HIS A -1 REMARK 465 MET A 0 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 LYS A 118 CG CD CE NZ 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 10 71.38 -151.53 REMARK 500 ALA A 11 -133.32 56.48 REMARK 500 ASP A 97 -168.55 -129.78 REMARK 500 REMARK 500 REMARK: NULL 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 MG A 401 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 65 OD2 REMARK 620 2 ASP A 70 OD2 149.3 REMARK 620 3 HOH A 504 O 90.2 60.6 REMARK 620 4 HOH A 513 O 75.3 87.6 76.0 REMARK 620 5 HOH A 605 O 97.6 107.1 159.4 87.5 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NA A 402 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 143 O REMARK 620 2 GLU A 145 O 102.2 REMARK 620 N 1 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue NA A 402 DBREF 6K21 A 0 173 UNP N9S5K0 N9S5K0_9GAMM 1 174 SEQADV 6K21 GLY A -3 UNP N9S5K0 EXPRESSION TAG SEQADV 6K21 SER A -2 UNP N9S5K0 EXPRESSION TAG SEQADV 6K21 HIS A -1 UNP N9S5K0 EXPRESSION TAG SEQADV 6K21 SER A 139 UNP N9S5K0 ALA 140 ENGINEERED MUTATION SEQRES 1 A 177 GLY SER HIS MET SER TYR ASN ASN ILE PRO ALA GLY LYS SEQRES 2 A 177 ASP ALA PRO ASN ASP ILE TYR VAL ILE ILE GLU ILE PRO SEQRES 3 A 177 ALA ASN ALA ALA PRO ILE LYS TYR GLU ILE ASP LYS ASP SEQRES 4 A 177 SER ASP ALA LEU PHE VAL ASP ARG PHE MET GLY THR ALA SEQRES 5 A 177 MET PHE TYR PRO ALA ASN TYR GLY TYR VAL PRO ASN THR SEQRES 6 A 177 LEU SER GLU ASP GLY ASP PRO LEU ASP VAL LEU VAL VAL SEQRES 7 A 177 THR PRO TYR PRO VAL ALA ALA GLY SER VAL ILE ARG CYS SEQRES 8 A 177 ARG PRO VAL GLY LYS LEU ASN MET GLU ASP ASP GLY GLY SEQRES 9 A 177 ILE ASP ALA LYS LEU ILE ALA VAL PRO HIS GLU LYS LEU SEQRES 10 A 177 SER PRO LEU TYR LYS ASP VAL LYS GLU TYR THR ASP LEU SEQRES 11 A 177 PRO GLN LEU LEU ILE ASN GLN VAL GLU HIS PHE PHE SER SEQRES 12 A 177 HIS TYR LYS ASP LEU GLU PRO GLY LYS TRP VAL LYS ILE SEQRES 13 A 177 SER GLY TRP GLU GLY ALA ASP VAL ALA LYS ALA GLU VAL SEQRES 14 A 177 ILE LYS ALA ILE GLU ALA ALA LYS HET MG A 401 1 HET NA A 402 1 HETNAM MG MAGNESIUM ION HETNAM NA SODIUM ION FORMUL 2 MG MG 2+ FORMUL 3 NA NA 1+ FORMUL 4 HOH *206(H2 O) HELIX 1 AA1 SER A 1 ILE A 5 5 5 HELIX 2 AA2 ASP A 10 ASP A 14 5 5 HELIX 3 AA3 GLU A 122 LEU A 126 5 5 HELIX 4 AA4 PRO A 127 TYR A 141 1 15 HELIX 5 AA5 ALA A 158 LYS A 173 1 16 SHEET 1 AA1 7 VAL A 150 GLY A 157 0 SHEET 2 AA1 7 VAL A 84 ASP A 97 -1 N GLU A 96 O LYS A 151 SHEET 3 AA1 7 GLY A 100 PRO A 109 -1 O ILE A 106 N VAL A 90 SHEET 4 AA1 7 ASP A 70 VAL A 73 1 N LEU A 72 O LEU A 105 SHEET 5 AA1 7 ASN A 54 TYR A 57 -1 N GLY A 56 O VAL A 71 SHEET 6 AA1 7 ILE A 15 ILE A 21 -1 N ILE A 21 O TYR A 55 SHEET 7 AA1 7 VAL A 84 ASP A 97 -1 O CYS A 87 N ILE A 15 SHEET 1 AA2 2 ILE A 28 ILE A 32 0 SHEET 2 AA2 2 LEU A 39 PHE A 44 -1 O ARG A 43 N LYS A 29 LINK OD2 ASP A 65 MG MG A 401 1555 1555 2.64 LINK OD2 ASP A 70 MG MG A 401 1555 1555 2.33 LINK O ASP A 143 NA NA A 402 1555 1555 2.73 LINK O GLU A 145 NA NA A 402 1555 1555 3.08 LINK MG MG A 401 O HOH A 504 1555 1555 2.60 LINK MG MG A 401 O HOH A 513 1555 1555 2.74 LINK MG MG A 401 O HOH A 605 1555 1555 2.44 SITE 1 AC1 5 ASP A 65 ASP A 70 HOH A 504 HOH A 513 SITE 2 AC1 5 HOH A 605 SITE 1 AC2 3 ASP A 143 GLU A 145 LYS A 148 CRYST1 102.813 102.813 100.776 90.00 90.00 120.00 P 63 2 2 12 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 0.009726 0.005616 0.000000 0.00000 SCALE2 0.000000 0.011231 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009923 0.00000