HEADER TRANSFERASE 31-AUG-09 3IV9 TITLE STRUCTURE OF THE B12-DEPENDENT METHIONINE SYNTHASE (METH) C-TEMINAL TITLE 2 HALF IN A "HIS-ON" CONFORMATION COMPND MOL_ID: 1; COMPND 2 MOLECULE: METHIONINE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: C-TERMINAL ACTIVATION COMPLEX (UNP RESIDUES 649-1227); COMPND 5 SYNONYM: 5-METHYLTETRAHYDROFOLATE--HOMOCYSTEINE METHYLTRANSFERASE, COMPND 6 METHIONINE SYNTHASE, VITAMIN-B12-DEPENDENT, MS; COMPND 7 EC: 2.1.1.13; COMPND 8 ENGINEERED: YES; COMPND 9 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: B4019, JW3979, METH; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: HMS174(DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PVB8 KEYWDS METH, TRANSFERASE, REACTIVATION CONFORMATION, H759, COBALAMIN, KEYWDS 2 INTERMODULAR INTERACTIONS, AMINO-ACID BIOSYNTHESIS, COBALT, METAL- KEYWDS 3 BINDING, METHIONINE BIOSYNTHESIS, METHYLTRANSFERASE, S-ADENOSYL-L- KEYWDS 4 METHIONINE EXPDTA X-RAY DIFFRACTION AUTHOR K.A.PATTRIDGE,M.KOUTMOS,J.L.SMITH REVDAT 4 06-SEP-23 3IV9 1 REMARK REVDAT 3 13-OCT-21 3IV9 1 REMARK SEQADV REVDAT 2 24-OCT-12 3IV9 1 FORMUL VERSN REVDAT 1 24-NOV-09 3IV9 0 JRNL AUTH M.KOUTMOS,S.DATTA,K.A.PATTRIDGE,J.L.SMITH,R.G.MATTHEWS JRNL TITL INSIGHTS INTO THE REACTIVATION OF COBALAMIN-DEPENDENT JRNL TITL 2 METHIONINE SYNTHASE. JRNL REF PROC.NATL.ACAD.SCI.USA V. 106 18527 2009 JRNL REFN ISSN 0027-8424 JRNL PMID 19846791 JRNL DOI 10.1073/PNAS.0906132106 REMARK 2 REMARK 2 RESOLUTION. 3.25 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.2 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 3.25 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 48.10 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 3544984.610 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.1 REMARK 3 NUMBER OF REFLECTIONS : 13846 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 SET) : 0.282 REMARK 3 FREE R VALUE : 0.321 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 693 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.012 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 3.25 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 3.45 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 95.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2057 REMARK 3 BIN R VALUE (WORKING SET) : 0.3860 REMARK 3 BIN FREE R VALUE : 0.4460 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 108 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.043 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4572 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 91 REMARK 3 SOLVENT ATOMS : 22 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 113.2 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.21000 REMARK 3 B22 (A**2) : 2.21000 REMARK 3 B33 (A**2) : -4.41000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.55 REMARK 3 ESD FROM SIGMAA (A) : 0.80 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.64 REMARK 3 ESD FROM C-V SIGMAA (A) : 1.00 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.40 REMARK 3 IMPROPER ANGLES (DEGREES) : 4.140 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.340 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.400 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.550 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.610 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.35 REMARK 3 BSOL : 88.42 REMARK 3 REMARK 3 NCS MODEL : NONE REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : PARAM12CNS.COB REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : TOPCNS.COB3 REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED REMARK 4 REMARK 4 3IV9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-SEP-09. REMARK 100 THE DEPOSITION ID IS D_1000054907. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 02-APR-07 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 23-ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9793 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL MONOCHROMATOR REMARK 200 OPTICS : K-B PAIR OF BIOMORPH MIRRORS FOR REMARK 200 VERTICAL AND HORIZONTAL FOCUSING REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 300 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13890 REMARK 200 RESOLUTION RANGE HIGH (A) : 3.250 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 9.500 REMARK 200 R MERGE (I) : 0.09200 REMARK 200 R SYM (I) : 0.08800 REMARK 200 FOR THE DATA SET : 19.4400 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.25 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 3.44 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 9.50 REMARK 200 R MERGE FOR SHELL (I) : 0.60400 REMARK 200 R SYM FOR SHELL (I) : 0.77800 REMARK 200 FOR SHELL : 3.170 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX AUTOMR REMARK 200 STARTING MODEL: INDIVIDUAL DOMAINS OF PDB ENTRY 3BUL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 61.71 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.21 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M POTASSIUM NITRATE, 20 % (W/V) REMARK 280 PEG3350, 50 MM HEPES PH 7.5, VAPOR DIFFUSION, TEMPERATURE 302K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 -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 72.40000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 53.77500 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 53.77500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 108.60000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 53.77500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 53.77500 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 36.20000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 53.77500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 53.77500 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 108.60000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 53.77500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 53.77500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 36.20000 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 72.40000 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 ALA A 649 REMARK 465 GLN A 650 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 VAL A 659 -14.58 -49.70 REMARK 500 THR A 687 -86.98 -70.40 REMARK 500 PRO A 689 94.79 -57.74 REMARK 500 CYS A 690 -7.31 163.53 REMARK 500 PHE A 735 4.21 -66.35 REMARK 500 SER A 739 47.19 -140.27 REMARK 500 GLN A 742 -59.10 68.40 REMARK 500 CYS A 743 136.15 67.17 REMARK 500 THR A 745 -158.00 -129.54 REMARK 500 VAL A 754 125.81 -31.86 REMARK 500 LYS A 755 119.97 -36.65 REMARK 500 LEU A 811 -29.94 -37.47 REMARK 500 ALA A 840 -61.06 -95.39 REMARK 500 ILE A 846 -55.13 -132.93 REMARK 500 SER A 851 20.11 -70.23 REMARK 500 ALA A 869 1.99 -64.61 REMARK 500 GLN A 875 -31.45 -132.58 REMARK 500 ARG A 876 -29.07 -37.95 REMARK 500 PHE A 879 -70.53 -64.06 REMARK 500 ASN A 912 53.00 -92.79 REMARK 500 PHE A 914 97.10 -51.01 REMARK 500 TRP A 954 23.42 -72.97 REMARK 500 ASP A 966 116.62 -10.62 REMARK 500 GLU A 967 6.23 -59.28 REMARK 500 VAL A 968 -74.82 -105.85 REMARK 500 LYS A 991 19.36 47.74 REMARK 500 ASP A1009 20.53 -149.80 REMARK 500 THR A1020 -83.13 -94.96 REMARK 500 ASN A1024 167.36 164.62 REMARK 500 ASN A1040 83.38 -69.52 REMARK 500 LEU A1043 -12.15 -49.58 REMARK 500 PHE A1046 9.41 -66.80 REMARK 500 LEU A1051 47.73 -86.50 REMARK 500 SER A1052 -5.73 -149.22 REMARK 500 LYS A1054 101.58 -50.80 REMARK 500 ALA A1055 92.30 -66.13 REMARK 500 GLN A1079 14.54 -68.00 REMARK 500 HIS A1080 70.14 45.92 REMARK 500 LYS A1109 -70.96 -90.72 REMARK 500 VAL A1110 -89.48 -81.47 REMARK 500 TYR A1111 -68.36 -26.72 REMARK 500 ALA A1115 56.76 -170.38 REMARK 500 GLU A1153 -71.42 -71.26 REMARK 500 THR A1166 -146.34 -73.17 REMARK 500 HIS A1184 119.99 -33.99 REMARK 500 PRO A1185 7.54 -58.14 REMARK 500 TYR A1190 -168.90 -129.12 REMARK 500 ALA A1193 -134.62 60.41 REMARK 500 VAL A1211 -37.63 -34.38 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 B12 A1301 CO REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A1400 O REMARK 620 2 B12 A1301 N21 91.8 REMARK 620 3 B12 A1301 N22 83.1 91.5 REMARK 620 4 B12 A1301 N23 86.7 169.7 98.5 REMARK 620 5 B12 A1301 N24 83.9 82.0 165.3 87.7 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 B12 A 1301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1K7Y RELATED DB: PDB REMARK 900 SAME FRAGMENT WITH H759G MUTATION AND NO ADOHCY REMARK 900 RELATED ID: 3BUL RELATED DB: PDB REMARK 900 SAME FRAGMENT WITH NO ADOHCY REMARK 900 RELATED ID: 3IVA RELATED DB: PDB DBREF 3IV9 A 649 1227 UNP P13009 METH_ECOLI 649 1227 SEQADV 3IV9 CYS A 690 UNP P13009 ILE 690 ENGINEERED MUTATION SEQADV 3IV9 CYS A 743 UNP P13009 GLY 743 ENGINEERED MUTATION SEQRES 1 A 579 ALA GLN GLN ALA GLU TRP ARG SER TRP GLU VAL ASN LYS SEQRES 2 A 579 ARG LEU GLU TYR SER LEU VAL LYS GLY ILE THR GLU PHE SEQRES 3 A 579 ILE GLU GLN ASP THR GLU GLU ALA ARG GLN GLN ALA THR SEQRES 4 A 579 ARG PRO CYS GLU VAL ILE GLU GLY PRO LEU MET ASP GLY SEQRES 5 A 579 MET ASN VAL VAL GLY ASP LEU PHE GLY GLU GLY LYS MET SEQRES 6 A 579 PHE LEU PRO GLN VAL VAL LYS SER ALA ARG VAL MET LYS SEQRES 7 A 579 GLN ALA VAL ALA TYR LEU GLU PRO PHE ILE GLU ALA SER SEQRES 8 A 579 LYS GLU GLN CYS LYS THR ASN GLY LYS MET VAL ILE ALA SEQRES 9 A 579 THR VAL LYS GLY ASP VAL HIS ASP ILE GLY LYS ASN ILE SEQRES 10 A 579 VAL GLY VAL VAL LEU GLN CYS ASN ASN TYR GLU ILE VAL SEQRES 11 A 579 ASP LEU GLY VAL MET VAL PRO ALA GLU LYS ILE LEU ARG SEQRES 12 A 579 THR ALA LYS GLU VAL ASN ALA ASP LEU ILE GLY LEU SER SEQRES 13 A 579 GLY LEU ILE THR PRO SER LEU ASP GLU MET VAL ASN VAL SEQRES 14 A 579 ALA LYS GLU MET GLU ARG GLN GLY PHE THR ILE PRO LEU SEQRES 15 A 579 LEU ILE GLY GLY ALA THR THR SER LYS ALA HIS THR ALA SEQRES 16 A 579 VAL LYS ILE GLU GLN ASN TYR SER GLY PRO THR VAL TYR SEQRES 17 A 579 VAL GLN ASN ALA SER ARG THR VAL GLY VAL VAL ALA ALA SEQRES 18 A 579 LEU LEU SER ASP THR GLN ARG ASP ASP PHE VAL ALA ARG SEQRES 19 A 579 THR ARG LYS GLU TYR GLU THR VAL ARG ILE GLN HIS GLY SEQRES 20 A 579 ARG LYS LYS PRO ARG THR PRO PRO VAL THR LEU GLU ALA SEQRES 21 A 579 ALA ARG ASP ASN ASP PHE ALA PHE ASP TRP GLN ALA TYR SEQRES 22 A 579 THR PRO PRO VAL ALA HIS ARG LEU GLY VAL GLN GLU VAL SEQRES 23 A 579 GLU ALA SER ILE GLU THR LEU ARG ASN TYR ILE ASP TRP SEQRES 24 A 579 THR PRO PHE PHE MET THR TRP SER LEU ALA GLY LYS TYR SEQRES 25 A 579 PRO ARG ILE LEU GLU ASP GLU VAL VAL GLY VAL GLU ALA SEQRES 26 A 579 GLN ARG LEU PHE LYS ASP ALA ASN ASP MET LEU ASP LYS SEQRES 27 A 579 LEU SER ALA GLU LYS THR LEU ASN PRO ARG GLY VAL VAL SEQRES 28 A 579 GLY LEU PHE PRO ALA ASN ARG VAL GLY ASP ASP ILE GLU SEQRES 29 A 579 ILE TYR ARG ASP GLU THR ARG THR HIS VAL ILE ASN VAL SEQRES 30 A 579 SER HIS HIS LEU ARG GLN GLN THR GLU LYS THR GLY PHE SEQRES 31 A 579 ALA ASN TYR CYS LEU ALA ASP PHE VAL ALA PRO LYS LEU SEQRES 32 A 579 SER GLY LYS ALA ASP TYR ILE GLY ALA PHE ALA VAL THR SEQRES 33 A 579 GLY GLY LEU GLU GLU ASP ALA LEU ALA ASP ALA PHE GLU SEQRES 34 A 579 ALA GLN HIS ASP ASP TYR ASN LYS ILE MET VAL LYS ALA SEQRES 35 A 579 LEU ALA ASP ARG LEU ALA GLU ALA PHE ALA GLU TYR LEU SEQRES 36 A 579 HIS GLU ARG VAL ARG LYS VAL TYR TRP GLY TYR ALA PRO SEQRES 37 A 579 ASN GLU ASN LEU SER ASN GLU GLU LEU ILE ARG GLU ASN SEQRES 38 A 579 TYR GLN GLY ILE ARG PRO ALA PRO GLY TYR PRO ALA CYS SEQRES 39 A 579 PRO GLU HIS THR GLU LYS ALA THR ILE TRP GLU LEU LEU SEQRES 40 A 579 GLU VAL GLU LYS HIS THR GLY MET LYS LEU THR GLU SER SEQRES 41 A 579 PHE ALA MET TRP PRO GLY ALA SER VAL SER GLY TRP TYR SEQRES 42 A 579 PHE SER HIS PRO ASP SER LYS TYR TYR ALA VAL ALA GLN SEQRES 43 A 579 ILE GLN ARG ASP GLN VAL GLU ASP TYR ALA ARG ARG LYS SEQRES 44 A 579 GLY MET SER VAL THR GLU VAL GLU ARG TRP LEU ALA PRO SEQRES 45 A 579 ASN LEU GLY TYR ASP ALA ASP HET B12 A1301 91 HETNAM B12 COBALAMIN FORMUL 2 B12 C62 H89 CO N13 O14 P 2+ FORMUL 3 HOH *22(H2 O) HELIX 1 1 GLU A 658 LYS A 669 1 12 HELIX 2 2 PHE A 674 GLN A 685 1 12 HELIX 3 3 LEU A 697 GLU A 710 1 14 HELIX 4 4 PHE A 714 ALA A 730 1 17 HELIX 5 5 GLU A 733 GLU A 737 5 5 HELIX 6 6 ASP A 760 GLN A 771 1 12 HELIX 7 7 PRO A 785 VAL A 796 1 12 HELIX 8 8 ILE A 807 GLN A 824 1 18 HELIX 9 9 ALA A 840 ILE A 846 1 7 HELIX 10 10 GLU A 847 TYR A 850 5 4 HELIX 11 11 ASN A 859 LEU A 870 1 12 HELIX 12 12 GLN A 875 LYS A 897 1 23 HELIX 13 13 THR A 905 ASN A 912 1 8 HELIX 14 14 SER A 937 ASN A 943 1 7 HELIX 15 15 ASP A 946 TRP A 954 1 9 HELIX 16 16 PRO A 961 GLU A 965 5 5 HELIX 17 17 VAL A 969 LYS A 991 1 23 HELIX 18 18 PRO A 1049 GLY A 1053 5 5 HELIX 19 19 GLU A 1068 GLN A 1079 1 12 HELIX 20 20 ASP A 1081 VAL A 1110 1 30 HELIX 21 21 SER A 1121 GLU A 1128 1 8 HELIX 22 22 GLU A 1144 THR A 1146 5 3 HELIX 23 23 GLU A 1147 GLU A 1156 1 10 HELIX 24 24 GLU A 1156 THR A 1161 1 6 HELIX 25 25 GLN A 1196 GLY A 1208 1 13 HELIX 26 26 SER A 1210 LEU A 1218 1 9 HELIX 27 27 ALA A 1219 LEU A 1222 5 4 SHEET 1 A 5 GLU A 776 ASP A 779 0 SHEET 2 A 5 LYS A 748 THR A 753 1 N MET A 749 O GLU A 776 SHEET 3 A 5 LEU A 800 SER A 804 1 O LEU A 800 N VAL A 750 SHEET 4 A 5 LEU A 830 GLY A 833 1 O LEU A 831 N LEU A 803 SHEET 5 A 5 THR A 854 TYR A 856 1 O VAL A 855 N ILE A 832 SHEET 1 B 4 GLY A 930 GLU A 935 0 SHEET 2 B 4 ARG A 996 VAL A1007 -1 O LEU A1001 N GLY A 930 SHEET 3 B 4 ASP A1010 TYR A1014 -1 O GLU A1012 N ASN A1005 SHEET 4 B 4 VAL A1022 HIS A1027 -1 O ILE A1023 N ILE A1013 SHEET 1 C 4 GLY A 930 GLU A 935 0 SHEET 2 C 4 ARG A 996 VAL A1007 -1 O LEU A1001 N GLY A 930 SHEET 3 C 4 ASP A1056 THR A1064 -1 O THR A1064 N ARG A 996 SHEET 4 C 4 SER A1176 TYR A1181 -1 O VAL A1177 N VAL A1063 SSBOND 1 CYS A 690 CYS A 743 1555 1555 2.03 LINK CO B12 A1301 O HOH A1400 1555 1555 2.06 CISPEP 1 LYS A 898 PRO A 899 0 0.76 CISPEP 2 TYR A 960 PRO A 961 0 0.19 CISPEP 3 TRP A 1172 PRO A 1173 0 -0.14 SITE 1 AC1 34 VAL A 758 HIS A 759 ASP A 760 ILE A 761 SITE 2 AC1 34 GLY A 762 ILE A 765 VAL A 766 GLY A 802 SITE 3 AC1 34 SER A 804 LEU A 806 ILE A 807 THR A 808 SITE 4 AC1 34 GLY A 833 GLY A 834 ALA A 835 THR A 836 SITE 5 AC1 34 VAL A 857 GLN A 858 ASN A 859 ALA A 860 SITE 6 AC1 34 ASP A1093 ALA A1136 PRO A1137 GLY A1138 SITE 7 AC1 34 TYR A1139 HIS A1145 LYS A1148 MET A1171 SITE 8 AC1 34 GLY A1174 ALA A1175 SER A1176 VAL A1177 SITE 9 AC1 34 SER A1178 HOH A1400 CRYST1 107.550 107.550 144.800 90.00 90.00 90.00 P 43 21 2 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 0.009298 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009298 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006906 0.00000