HEADER HYDROLASE 22-JUL-99 1C21 TITLE E. COLI METHIONINE AMINOPEPTIDASE: METHIONINE COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: METHIONINE AMINOPEPTIDASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: METHIONINE; COMPND 5 EC: 3.4.11.18; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES; COMPND 8 OTHER_DETAILS: METHIONINE COMPLEX SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_PLASMID: PET28B KEYWDS PRODUCT COMPLEX, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR W.T.LOWTHER,Y.ZHANG,P.B.SAMPSON,J.F.HONEK,B.W.MATTHEWS REVDAT 6 07-FEB-24 1C21 1 REMARK REVDAT 5 03-NOV-21 1C21 1 REMARK SEQADV LINK REVDAT 4 24-FEB-09 1C21 1 VERSN REVDAT 3 01-APR-03 1C21 1 JRNL REVDAT 2 30-AUG-00 1C21 1 COMPND REVDAT 1 17-NOV-99 1C21 0 JRNL AUTH W.T.LOWTHER,Y.ZHANG,P.B.SAMPSON,J.F.HONEK,B.W.MATTHEWS JRNL TITL INSIGHTS INTO THE MECHANISM OF ESCHERICHIA COLI METHIONINE JRNL TITL 2 AMINOPEPTIDASE FROM THE STRUCTURAL ANALYSIS OF REACTION JRNL TITL 3 PRODUCTS AND PHOSPHORUS-BASED TRANSITION-STATE ANALOGUES. JRNL REF BIOCHEMISTRY V. 38 14810 1999 JRNL REFN ISSN 0006-2960 JRNL PMID 10555963 JRNL DOI 10.1021/BI991711G REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 24.80 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 85232 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : NULL REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.1630 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 21097 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1980 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 12 REMARK 3 SOLVENT ATOMS : 97 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : 19.400 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : 0.010 ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : 2.050 ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : 0.006 ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : 0.012 ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : TNT REMARK 3 KSOL : 0.83 REMARK 3 BSOL : 204.6 REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : TNT REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1C21 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-JUL-99. REMARK 100 THE DEPOSITION ID IS D_1000009382. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-APR-99 REMARK 200 TEMPERATURE (KELVIN) : 298 REMARK 200 PH : NULL 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) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 85232 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 24.800 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.1 REMARK 200 DATA REDUNDANCY : 4.000 REMARK 200 R MERGE (I) : 0.04500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 35.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 90.2 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.25600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: TNT REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.58 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: K2SO4, NACL, METHIONINE, N-OCTANOYL REMARK 280 SUCROSE, PEG 4000, HEPES, COCL2, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 33.79400 REMARK 290 SMTRY3 2 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 GLU A 264 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 13 CE NZ REMARK 470 LYS A 33 CD CE NZ REMARK 470 LYS A 86 CE NZ REMARK 470 LEU A 87 CD1 CD2 REMARK 470 LYS A 89 CD CE NZ REMARK 470 LYS A 117 CG CD CE NZ REMARK 470 ILE A 120 CD1 REMARK 470 ILE A 144 CD1 REMARK 470 LYS A 155 CD CE NZ REMARK 470 LYS A 196 CE NZ REMARK 470 LYS A 211 CE NZ REMARK 470 ARG A 215 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 218 CG CD CE NZ REMARK 470 LYS A 224 CE NZ REMARK 470 LYS A 226 CG CD CE NZ REMARK 470 ARG A 228 CD NE CZ NH1 NH2 REMARK 470 LYS A 252 CD CE NZ REMARK 470 ASP A 263 CG OD1 OD2 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 GLU A 9 CD GLU A 9 OE2 0.068 REMARK 500 GLU A 148 CD GLU A 148 OE2 0.069 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 A 10 CB - CG - OD2 ANGL. DEV. = -6.7 DEGREES REMARK 500 ASP A 42 CB - CG - OD2 ANGL. DEV. = -6.0 DEGREES REMARK 500 ARG A 43 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ASP A 83 CB - CG - OD1 ANGL. DEV. = 6.4 DEGREES REMARK 500 ASP A 83 CB - CG - OD2 ANGL. DEV. = -6.4 DEGREES REMARK 500 ASP A 92 CB - CG - OD1 ANGL. DEV. = 5.4 DEGREES REMARK 500 ASP A 92 CB - CG - OD2 ANGL. DEV. = -5.5 DEGREES REMARK 500 ASP A 103 CB - CG - OD2 ANGL. DEV. = -5.4 DEGREES REMARK 500 ASP A 108 CB - CG - OD2 ANGL. DEV. = -5.9 DEGREES REMARK 500 ARG A 127 NE - CZ - NH2 ANGL. DEV. = -3.8 DEGREES REMARK 500 ASP A 219 CB - CG - OD1 ANGL. DEV. = 6.8 DEGREES REMARK 500 ASP A 219 CB - CG - OD2 ANGL. DEV. = -7.4 DEGREES REMARK 500 ASP A 227 CB - CG - OD2 ANGL. DEV. = -6.7 DEGREES REMARK 500 ASP A 253 CB - CG - OD1 ANGL. DEV. = 6.2 DEGREES REMARK 500 ASP A 254 CB - CG - OD1 ANGL. DEV. = 6.7 DEGREES REMARK 500 ASP A 254 CB - CG - OD2 ANGL. DEV. = -7.4 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 ALA A 55 -165.74 -116.10 REMARK 500 LEU A 60 109.78 -56.85 REMARK 500 ASN A 74 -110.71 46.43 REMARK 500 ASN A 192 83.22 -150.97 REMARK 500 GLU A 204 63.48 -155.32 REMARK 500 TRP A 221 -56.79 -124.97 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 NA A 501 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN A 74 O REMARK 620 2 VAL A 76 O 79.4 REMARK 620 3 SER A 231 O 78.0 114.8 REMARK 620 4 HOH A 523 O 147.5 91.9 77.4 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CO A 402 CO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 97 OD2 REMARK 620 2 ASP A 97 OD1 57.7 REMARK 620 3 ASP A 108 OD2 155.4 97.8 REMARK 620 4 GLU A 235 OE2 96.6 95.6 88.4 REMARK 620 5 MET A 300 N 85.1 90.2 92.5 173.9 REMARK 620 6 MET A 300 O 95.7 152.7 108.1 93.6 80.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CO A 401 CO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 108 OD1 REMARK 620 2 HIS A 171 NE2 91.4 REMARK 620 3 GLU A 204 OE2 159.7 85.7 REMARK 620 4 GLU A 235 OE1 87.3 127.9 78.8 REMARK 620 5 MET A 300 O 93.2 122.2 105.3 109.9 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO A 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CO A 402 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MET A 300 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1MAT RELATED DB: PDB REMARK 900 RELATED ID: 2MAT RELATED DB: PDB REMARK 900 RELATED ID: 3MAT RELATED DB: PDB REMARK 900 RELATED ID: 4MAT RELATED DB: PDB REMARK 900 RELATED ID: 1C22 RELATED DB: PDB REMARK 900 RELATED ID: 1C23 RELATED DB: PDB REMARK 900 RELATED ID: 1C24 RELATED DB: PDB REMARK 900 RELATED ID: 1C27 RELATED DB: PDB REMARK 999 REMARK 999 SEQUENCE REMARK 999 THERE ARE FOUR ADDITIONAL RESIDUES ON THE REMARK 999 C-TERMINUS LEFT OVER FROM A THROMBIN DIGEST REMARK 999 OF THE HIS-TAGGED PROTEIN. THESE RESIDUES, REMARK 999 L-V-P-R (RESIDUES 265-268), WERE NOT SEEN IN REMARK 999 THE ELECTRON DENSITY AND ARE NOT A PART OF THE SEQRES. DBREF 1C21 A 2 264 UNP P07906 AMPM_ECOLI 2 264 SEQADV 1C21 GLN A 175 UNP P07906 ARG 175 ENGINEERED MUTATION SEQRES 1 A 263 ALA ILE SER ILE LYS THR PRO GLU ASP ILE GLU LYS MET SEQRES 2 A 263 ARG VAL ALA GLY ARG LEU ALA ALA GLU VAL LEU GLU MET SEQRES 3 A 263 ILE GLU PRO TYR VAL LYS PRO GLY VAL SER THR GLY GLU SEQRES 4 A 263 LEU ASP ARG ILE CYS ASN ASP TYR ILE VAL ASN GLU GLN SEQRES 5 A 263 HIS ALA VAL SER ALA CYS LEU GLY TYR HIS GLY TYR PRO SEQRES 6 A 263 LYS SER VAL CYS ILE SER ILE ASN GLU VAL VAL CYS HIS SEQRES 7 A 263 GLY ILE PRO ASP ASP ALA LYS LEU LEU LYS ASP GLY ASP SEQRES 8 A 263 ILE VAL ASN ILE ASP VAL THR VAL ILE LYS ASP GLY PHE SEQRES 9 A 263 HIS GLY ASP THR SER LYS MET PHE ILE VAL GLY LYS PRO SEQRES 10 A 263 THR ILE MET GLY GLU ARG LEU CYS ARG ILE THR GLN GLU SEQRES 11 A 263 SER LEU TYR LEU ALA LEU ARG MET VAL LYS PRO GLY ILE SEQRES 12 A 263 ASN LEU ARG GLU ILE GLY ALA ALA ILE GLN LYS PHE VAL SEQRES 13 A 263 GLU ALA GLU GLY PHE SER VAL VAL ARG GLU TYR CYS GLY SEQRES 14 A 263 HIS GLY ILE GLY GLN GLY PHE HIS GLU GLU PRO GLN VAL SEQRES 15 A 263 LEU HIS TYR ASP SER ARG GLU THR ASN VAL VAL LEU LYS SEQRES 16 A 263 PRO GLY MET THR PHE THR ILE GLU PRO MET VAL ASN ALA SEQRES 17 A 263 GLY LYS LYS GLU ILE ARG THR MET LYS ASP GLY TRP THR SEQRES 18 A 263 VAL LYS THR LYS ASP ARG SER LEU SER ALA GLN TYR GLU SEQRES 19 A 263 HIS THR ILE VAL VAL THR ASP ASN GLY CYS GLU ILE LEU SEQRES 20 A 263 THR LEU ARG LYS ASP ASP THR ILE PRO ALA ILE ILE SER SEQRES 21 A 263 HIS ASP GLU HET CO A 401 1 HET CO A 402 1 HET NA A 501 1 HET MET A 300 9 HETNAM CO COBALT (II) ION HETNAM NA SODIUM ION HETNAM MET METHIONINE FORMUL 2 CO 2(CO 2+) FORMUL 4 NA NA 1+ FORMUL 5 MET C5 H11 N O2 S FORMUL 6 HOH *97(H2 O) HELIX 1 1 THR A 7 GLU A 29 1 23 HELIX 2 2 PRO A 30 VAL A 32 5 3 HELIX 3 3 SER A 37 GLU A 52 1 16 HELIX 4 4 GLY A 61 TYR A 65 5 5 HELIX 5 5 THR A 119 ARG A 138 1 20 HELIX 6 6 ASN A 145 GLU A 160 1 16 SHEET 1 A 3 PHE A 105 ILE A 114 0 SHEET 2 A 3 ILE A 93 LYS A 102 -1 O VAL A 94 N PHE A 113 SHEET 3 A 3 VAL A 56 SER A 57 -1 O VAL A 56 N ILE A 101 SHEET 1 A1 3 PHE A 105 ILE A 114 0 SHEET 2 A1 3 ILE A 93 LYS A 102 -1 O VAL A 94 N PHE A 113 SHEET 3 A1 3 CYS A 70 ILE A 73 -1 O CYS A 70 N ASP A 97 SHEET 1 B 3 VAL A 76 CYS A 78 0 SHEET 2 B 3 VAL A 223 THR A 225 -1 O VAL A 223 N VAL A 77 SHEET 3 B 3 ILE A 214 THR A 216 -1 O ARG A 215 N LYS A 224 SHEET 1 C 3 SER A 163 VAL A 164 0 SHEET 2 C 3 MET A 206 ASN A 208 -1 O ASN A 208 N SER A 163 SHEET 3 C 3 SER A 231 GLN A 233 -1 O ALA A 232 N VAL A 207 SHEET 1 D 2 GLY A 170 GLY A 172 0 SHEET 2 D 2 GLU A 179 VAL A 183 -1 N GLU A 179 O GLY A 172 SHEET 1 E 4 THR A 200 ILE A 203 0 SHEET 2 E 4 HIS A 236 VAL A 240 -1 N HIS A 236 O ILE A 203 SHEET 3 E 4 GLY A 244 ILE A 247 -1 N GLU A 246 O VAL A 239 SHEET 4 E 4 ILE A 259 SER A 261 -1 N ILE A 260 O CYS A 245 LINK O ASN A 74 NA NA A 501 1555 1555 2.73 LINK O VAL A 76 NA NA A 501 1555 1555 2.60 LINK OD2 ASP A 97 CO CO A 402 1555 1555 2.33 LINK OD1 ASP A 97 CO CO A 402 1555 1555 2.20 LINK OD1 ASP A 108 CO CO A 401 1555 1555 2.01 LINK OD2 ASP A 108 CO CO A 402 1555 1555 2.08 LINK NE2 HIS A 171 CO CO A 401 1555 1555 2.11 LINK OE2 GLU A 204 CO CO A 401 1555 1555 2.09 LINK O SER A 231 NA NA A 501 1555 1555 2.53 LINK OE1 GLU A 235 CO CO A 401 1555 1555 2.00 LINK OE2 GLU A 235 CO CO A 402 1555 1555 2.21 LINK O MET A 300 CO CO A 401 1555 1555 2.03 LINK N MET A 300 CO CO A 402 1555 1555 2.23 LINK O MET A 300 CO CO A 402 1555 1555 2.24 LINK NA NA A 501 O HOH A 523 1555 1555 2.75 CISPEP 1 GLU A 180 PRO A 181 0 2.75 SITE 1 AC1 7 ASP A 108 HIS A 171 THR A 202 GLU A 204 SITE 2 AC1 7 GLU A 235 MET A 300 CO A 402 SITE 1 AC2 5 ASP A 97 ASP A 108 GLU A 235 MET A 300 SITE 2 AC2 5 CO A 401 SITE 1 AC3 5 SER A 72 ASN A 74 VAL A 76 SER A 231 SITE 2 AC3 5 HOH A 523 SITE 1 AC4 12 HIS A 79 ASP A 97 THR A 99 ASP A 108 SITE 2 AC4 12 HIS A 171 PHE A 177 HIS A 178 GLU A 204 SITE 3 AC4 12 TRP A 221 GLU A 235 CO A 401 CO A 402 CRYST1 39.242 67.588 48.927 90.00 111.20 90.00 P 1 21 1 2 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 0.025483 0.000000 0.009886 0.00000 SCALE2 0.000000 0.014796 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021923 0.00000