HEADER OXIDOREDUCTASE 02-JUN-20 6X8Z TITLE CRYSTAL STRUCTURE OF N-TRUNCATED HUMAN B12 CHAPERONE CBLD(C262S)- TITLE 2 THIOLATO-COB(III)ALAMIN COMPLEX (108-296) COMPND MOL_ID: 1; COMPND 2 MOLECULE: METHYLMALONIC ACIDURIA AND HOMOCYSTINURIA TYPE D PROTEIN, COMPND 3 MITOCHONDRIAL; COMPND 4 CHAIN: A, B; COMPND 5 FRAGMENT: UNP RESIDUES 108-296; COMPND 6 SYNONYM: CBLD; COMPND 7 EC: 1.-.-.-; COMPND 8 ENGINEERED: YES; COMPND 9 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: MMADHC, C2ORF25, CL25022, HSPC161, MY011; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS COBALAMIN, VITAMIN B12, CHAPERONE, OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR R.MASCARENHAS,Z.LI,M.KOUTMOS,R.BANERJEE REVDAT 3 18-OCT-23 6X8Z 1 REMARK REVDAT 2 07-OCT-20 6X8Z 1 JRNL REVDAT 1 16-SEP-20 6X8Z 0 JRNL AUTH Z.LI,R.MASCARENHAS,U.T.TWAHIR,A.KALLON,A.DEB,M.YAW, JRNL AUTH 2 J.PENNER-HAHN,M.KOUTMOS,K.WARNCKE,R.BANERJEE JRNL TITL AN INTERPROTEIN CO-S COORDINATION COMPLEX IN THE B 12 JRNL TITL 2 -TRAFFICKING PATHWAY. JRNL REF J.AM.CHEM.SOC. V. 142 16334 2020 JRNL REFN ESSN 1520-5126 JRNL PMID 32871076 JRNL DOI 10.1021/JACS.0C06590 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.15.2_3472 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) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.64 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 3 NUMBER OF REFLECTIONS : 15472 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.251 REMARK 3 R VALUE (WORKING SET) : 0.249 REMARK 3 FREE R VALUE : 0.279 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.260 REMARK 3 FREE R VALUE TEST SET COUNT : 814 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 50.6370 - 4.5420 0.99 2492 136 0.2226 0.2562 REMARK 3 2 4.5420 - 3.6054 0.99 2457 151 0.2289 0.2341 REMARK 3 3 3.6054 - 3.1497 0.99 2432 133 0.2529 0.3087 REMARK 3 4 3.1497 - 2.8618 0.99 2432 142 0.3014 0.3143 REMARK 3 5 2.8618 - 2.6567 0.99 2434 115 0.3152 0.3727 REMARK 3 6 2.6567 - 2.5000 0.99 2411 137 0.3123 0.3859 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) : 0.380 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 33.640 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 64.57 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 : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL 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 6X8Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-JUN-20. REMARK 100 THE DEPOSITION ID IS D_1000249770. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-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 : APS REMARK 200 BEAMLINE : 21-ID-G REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.987 REMARK 200 MONOCHROMATOR : DIAMOND(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 300 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DIALS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15518 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 50.637 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 200 DATA REDUNDANCY : 4.100 REMARK 200 R MERGE (I) : 0.10700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 7.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.60 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 1.21300 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: PHASER REMARK 200 STARTING MODEL: PDB ENTRY 5CV0 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.71 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% PEG8000, 100 MM TRIS-HCL, PH 8.5, REMARK 280 200 MM MAGNESIUM CHLORIDE, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 51.61100 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 34.88800 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 51.61100 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 34.88800 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 GLY A 105 REMARK 465 HIS A 106 REMARK 465 MET A 107 REMARK 465 SER A 108 REMARK 465 SER A 109 REMARK 465 GLU A 110 REMARK 465 ARG A 111 REMARK 465 HIS A 112 REMARK 465 GLU A 113 REMARK 465 PHE A 114 REMARK 465 VAL A 115 REMARK 465 MET A 116 REMARK 465 ALA A 117 REMARK 465 GLN A 118 REMARK 465 TYR A 119 REMARK 465 VAL A 120 REMARK 465 ASN A 121 REMARK 465 GLU A 122 REMARK 465 PHE A 123 REMARK 465 GLN A 124 REMARK 465 GLY A 125 REMARK 465 ASN A 126 REMARK 465 ASP A 127 REMARK 465 ALA A 128 REMARK 465 PRO A 129 REMARK 465 VAL A 130 REMARK 465 GLU A 131 REMARK 465 GLN A 132 REMARK 465 VAL A 168 REMARK 465 ALA A 169 REMARK 465 ASN A 170 REMARK 465 PHE A 243 REMARK 465 GLU A 244 REMARK 465 THR A 245 REMARK 465 GLY B 105 REMARK 465 HIS B 106 REMARK 465 MET B 107 REMARK 465 SER B 108 REMARK 465 SER B 109 REMARK 465 GLU B 110 REMARK 465 ARG B 111 REMARK 465 HIS B 112 REMARK 465 GLU B 113 REMARK 465 PHE B 114 REMARK 465 VAL B 115 REMARK 465 MET B 116 REMARK 465 ALA B 117 REMARK 465 GLN B 118 REMARK 465 TYR B 119 REMARK 465 VAL B 120 REMARK 465 ASN B 121 REMARK 465 GLU B 122 REMARK 465 PHE B 123 REMARK 465 GLN B 124 REMARK 465 GLY B 125 REMARK 465 ASN B 126 REMARK 465 ASP B 127 REMARK 465 ALA B 128 REMARK 465 PRO B 129 REMARK 465 VAL B 130 REMARK 465 GLU B 131 REMARK 465 GLN B 132 REMARK 465 GLU B 133 REMARK 465 ILE B 134 REMARK 465 GLU B 167 REMARK 465 VAL B 168 REMARK 465 ALA B 169 REMARK 465 ASN B 170 REMARK 465 GLY B 171 REMARK 465 ASN B 239 REMARK 465 ASN B 240 REMARK 465 THR B 241 REMARK 465 LEU B 242 REMARK 465 PHE B 243 REMARK 465 GLU B 244 REMARK 465 ASN B 296 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 GLU A 133 CG CD OE1 OE2 REMARK 470 GLU A 142 CG CD OE1 OE2 REMARK 470 GLU A 167 CG CD OE1 OE2 REMARK 470 TRP A 189 CG CD1 CD2 NE1 CE2 CE3 CZ2 REMARK 470 TRP A 189 CZ3 CH2 REMARK 470 GLU A 194 CG CD OE1 OE2 REMARK 470 LYS A 203 CG CD CE NZ REMARK 470 GLU A 218 CG CD OE1 OE2 REMARK 470 LEU A 242 CG CD1 CD2 REMARK 470 ASP A 246 CG OD1 OD2 REMARK 470 ASN A 282 CG OD1 ND2 REMARK 470 LYS A 292 CG CD CE NZ REMARK 470 GLU B 142 CG CD OE1 OE2 REMARK 470 GLU B 162 CG CD OE1 OE2 REMARK 470 TRP B 189 CG CD1 CD2 NE1 CE2 CE3 CZ2 REMARK 470 TRP B 189 CZ3 CH2 REMARK 470 GLU B 191 CG CD OE1 OE2 REMARK 470 ASP B 286 CG OD1 OD2 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 PRO A 166 90.11 -62.50 REMARK 500 TRP A 189 38.62 -86.08 REMARK 500 SER A 229 -32.55 -148.14 REMARK 500 PHE B 141 -34.61 -130.22 REMARK 500 REMARK 500 REMARK: NULL REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 B12 A 301 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 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue B12 B 301 DBREF 6X8Z A 108 296 UNP Q9H3L0 MMAD_HUMAN 108 296 DBREF 6X8Z B 108 296 UNP Q9H3L0 MMAD_HUMAN 108 296 SEQADV 6X8Z GLY A 105 UNP Q9H3L0 EXPRESSION TAG SEQADV 6X8Z HIS A 106 UNP Q9H3L0 EXPRESSION TAG SEQADV 6X8Z MET A 107 UNP Q9H3L0 EXPRESSION TAG SEQADV 6X8Z SER A 262 UNP Q9H3L0 CYS 262 ENGINEERED MUTATION SEQADV 6X8Z GLY B 105 UNP Q9H3L0 EXPRESSION TAG SEQADV 6X8Z HIS B 106 UNP Q9H3L0 EXPRESSION TAG SEQADV 6X8Z MET B 107 UNP Q9H3L0 EXPRESSION TAG SEQADV 6X8Z SER B 262 UNP Q9H3L0 CYS 262 ENGINEERED MUTATION SEQRES 1 A 192 GLY HIS MET SER SER GLU ARG HIS GLU PHE VAL MET ALA SEQRES 2 A 192 GLN TYR VAL ASN GLU PHE GLN GLY ASN ASP ALA PRO VAL SEQRES 3 A 192 GLU GLN GLU ILE ASN SER ALA GLU THR TYR PHE GLU SER SEQRES 4 A 192 ALA ARG VAL GLU CYS ALA ILE GLN THR CYS PRO GLU LEU SEQRES 5 A 192 LEU ARG LYS ASP PHE GLU SER LEU PHE PRO GLU VAL ALA SEQRES 6 A 192 ASN GLY LYS LEU MET ILE LEU THR VAL THR GLN LYS THR SEQRES 7 A 192 LYS ASN ASP MET THR VAL TRP SER GLU GLU VAL GLU ILE SEQRES 8 A 192 GLU ARG GLU VAL LEU LEU GLU LYS PHE ILE ASN GLY ALA SEQRES 9 A 192 LYS GLU ILE CYS TYR ALA LEU ARG ALA GLU GLY TYR TRP SEQRES 10 A 192 ALA ASP PHE ILE ASP PRO SER SER GLY LEU ALA PHE PHE SEQRES 11 A 192 GLY PRO TYR THR ASN ASN THR LEU PHE GLU THR ASP GLU SEQRES 12 A 192 ARG TYR ARG HIS LEU GLY PHE SER VAL ASP ASP LEU GLY SEQRES 13 A 192 CYS SER LYS VAL ILE ARG HIS SER LEU TRP GLY THR HIS SEQRES 14 A 192 VAL VAL VAL GLY SER ILE PHE THR ASN ALA THR PRO ASP SEQRES 15 A 192 SER HIS ILE MET LYS LYS LEU SER GLY ASN SEQRES 1 B 192 GLY HIS MET SER SER GLU ARG HIS GLU PHE VAL MET ALA SEQRES 2 B 192 GLN TYR VAL ASN GLU PHE GLN GLY ASN ASP ALA PRO VAL SEQRES 3 B 192 GLU GLN GLU ILE ASN SER ALA GLU THR TYR PHE GLU SER SEQRES 4 B 192 ALA ARG VAL GLU CYS ALA ILE GLN THR CYS PRO GLU LEU SEQRES 5 B 192 LEU ARG LYS ASP PHE GLU SER LEU PHE PRO GLU VAL ALA SEQRES 6 B 192 ASN GLY LYS LEU MET ILE LEU THR VAL THR GLN LYS THR SEQRES 7 B 192 LYS ASN ASP MET THR VAL TRP SER GLU GLU VAL GLU ILE SEQRES 8 B 192 GLU ARG GLU VAL LEU LEU GLU LYS PHE ILE ASN GLY ALA SEQRES 9 B 192 LYS GLU ILE CYS TYR ALA LEU ARG ALA GLU GLY TYR TRP SEQRES 10 B 192 ALA ASP PHE ILE ASP PRO SER SER GLY LEU ALA PHE PHE SEQRES 11 B 192 GLY PRO TYR THR ASN ASN THR LEU PHE GLU THR ASP GLU SEQRES 12 B 192 ARG TYR ARG HIS LEU GLY PHE SER VAL ASP ASP LEU GLY SEQRES 13 B 192 CYS SER LYS VAL ILE ARG HIS SER LEU TRP GLY THR HIS SEQRES 14 B 192 VAL VAL VAL GLY SER ILE PHE THR ASN ALA THR PRO ASP SEQRES 15 B 192 SER HIS ILE MET LYS LYS LEU SER GLY ASN HET B12 A 301 140 HET B12 B 301 180 HETNAM B12 COBALAMIN FORMUL 3 B12 2(C62 H89 CO N13 O14 P 2+) FORMUL 5 HOH *14(H2 O) HELIX 1 AA1 SER A 136 PHE A 141 5 6 HELIX 2 AA2 LEU A 157 PHE A 165 1 9 HELIX 3 AA3 SER A 190 GLU A 218 1 29 HELIX 4 AA4 ASP A 246 GLY A 253 5 8 HELIX 5 AA5 SER A 287 SER A 294 1 8 HELIX 6 AA6 SER B 136 PHE B 141 5 6 HELIX 7 AA7 PRO B 154 SER B 163 1 10 HELIX 8 AA8 SER B 190 GLY B 219 1 30 HELIX 9 AA9 ASP B 246 GLY B 253 5 8 HELIX 10 AB1 SER B 287 SER B 294 1 8 SHEET 1 AA1 4 VAL A 146 THR A 152 0 SHEET 2 AA1 4 MET A 174 LYS A 181 -1 O ILE A 175 N GLN A 151 SHEET 3 AA1 4 VAL A 274 THR A 281 -1 O GLY A 277 N VAL A 178 SHEET 4 AA1 4 ALA A 222 PHE A 224 -1 N ASP A 223 O PHE A 280 SHEET 1 AA2 2 SER A 255 ASP A 258 0 SHEET 2 AA2 2 LYS A 263 ARG A 266 -1 O ARG A 266 N SER A 255 SHEET 1 AA3 4 VAL B 146 THR B 152 0 SHEET 2 AA3 4 MET B 174 LYS B 181 -1 O THR B 179 N GLU B 147 SHEET 3 AA3 4 VAL B 274 THR B 281 -1 O GLY B 277 N VAL B 178 SHEET 4 AA3 4 ALA B 222 PHE B 224 -1 N ASP B 223 O PHE B 280 SHEET 1 AA4 2 SER B 255 ASP B 258 0 SHEET 2 AA4 2 LYS B 263 ARG B 266 -1 O ARG B 266 N SER B 255 SITE 1 AC1 7 THR A 187 TRP A 189 CYS A 261 ALA B 217 SITE 2 AC1 7 GLU B 218 GLY B 219 B12 B 301 SITE 1 AC2 15 ARG A 216 ALA A 217 GLY A 219 TYR A 220 SITE 2 AC2 15 ASP A 286 SER A 287 HIS A 288 LYS A 291 SITE 3 AC2 15 B12 A 301 THR B 187 TRP B 189 LEU B 259 SITE 4 AC2 15 CYS B 261 HOH B 401 HOH B 403 CRYST1 103.222 69.776 64.266 90.00 101.15 90.00 C 1 2 1 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 0.009688 0.000000 0.001909 0.00000 SCALE2 0.000000 0.014332 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015860 0.00000