3W5H
Ultra-high resolution structure of NADH-cytochrome b5 reductase
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004128 | molecular_function | cytochrome-b5 reductase activity, acting on NAD(P)H |
| A | 0005739 | cellular_component | mitochondrion |
| A | 0005741 | cellular_component | mitochondrial outer membrane |
| A | 0005789 | cellular_component | endoplasmic reticulum membrane |
| A | 0006629 | biological_process | lipid metabolic process |
| A | 0006694 | biological_process | steroid biosynthetic process |
| A | 0006695 | biological_process | cholesterol biosynthetic process |
| A | 0008202 | biological_process | steroid metabolic process |
| A | 0008203 | biological_process | cholesterol metabolic process |
| A | 0016126 | biological_process | sterol biosynthetic process |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0050660 | molecular_function | flavin adenine dinucleotide binding |
| A | 0071949 | molecular_function | FAD binding |
| A | 0090524 | molecular_function | cytochrome-b5 reductase activity, acting on NADH |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 32 |
| Details | BINDING SITE FOR RESIDUE FAD A 1301 |
| Chain | Residue |
| A | ARG1063 |
| A | THR1088 |
| A | HIS1089 |
| A | PHE1092 |
| A | GLY1095 |
| A | GLY1096 |
| A | LYS1097 |
| A | MET1098 |
| A | SER1099 |
| A | THR1153 |
| A | THR1156 |
| A | PRO1064 |
| A | PRO1157 |
| A | GOL1304 |
| A | GOL1305 |
| A | HOH2006 |
| A | HOH2029 |
| A | HOH2060 |
| A | HOH2071 |
| A | HOH2072 |
| A | HOH2187 |
| A | HOH2204 |
| A | TYR1065 |
| A | HOH2226 |
| A | HOH2232 |
| A | HOH2451 |
| A | THR1066 |
| A | VAL1080 |
| A | ILE1081 |
| A | LYS1082 |
| A | TYR1084 |
| A | PHE1085 |
| site_id | AC2 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE GOL A 1302 |
| Chain | Residue |
| A | PRO1038 |
| A | GLY1075 |
| A | ASP1170 |
| A | HOH2058 |
| A | HOH2200 |
| A | HOH2408 |
| A | HOH2411 |
| site_id | AC3 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE GOL A 1303 |
| Chain | Residue |
| A | GLY1151 |
| A | GLY1152 |
| A | ALA1180 |
| A | ASN1181 |
| A | GLN1182 |
| A | ASP1211 |
| A | PHE1223 |
| A | PRO1247 |
| A | MET1250 |
| A | HOH2034 |
| A | HOH2164 |
| A | HOH2238 |
| A | HOH2482 |
| A | HOH2524 |
| A | HOH2603 |
| A | HOH2604 |
| site_id | AC4 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE GOL A 1304 |
| Chain | Residue |
| A | ALA1094 |
| A | GLY1095 |
| A | LYS1097 |
| A | FAD1301 |
| A | HOH2088 |
| A | HOH2123 |
| A | HOH2329 |
| A | HOH2436 |
| A | HOH2442 |
| site_id | AC5 |
| Number of Residues | 12 |
| Details | BINDING SITE FOR RESIDUE GOL A 1305 |
| Chain | Residue |
| A | GLY1151 |
| A | THR1153 |
| A | GLY1154 |
| A | GLY1246 |
| A | PRO1247 |
| A | PRO1248 |
| A | FAD1301 |
| A | HOH2029 |
| A | HOH2089 |
| A | HOH2451 |
| A | HOH2556 |
| A | HOH2563 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 112 |
| Details | Domain: {"description":"FAD-binding FR-type","evidences":[{"source":"PROSITE-ProRule","id":"PRU00716","evidenceCode":"ECO:0000255"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 6 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"7893687","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1NDH","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 4 |
| Details | Binding site: {"evidences":[{"source":"UniProtKB","id":"P00387","evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 1 |
| Details | Modified residue: {"description":"N6-acetyllysine","evidences":[{"source":"UniProtKB","id":"P00387","evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 1 |
| Details | Modified residue: {"description":"Phosphotyrosine","evidences":[{"source":"UniProtKB","id":"P00387","evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI6 |
| Number of Residues | 2 |
| Details | Modified residue: {"description":"N6-acetyllysine","evidences":[{"source":"UniProtKB","id":"Q9DCN2","evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | 4 |
| Details | M-CSA 862 |
| Chain | Residue | Details |
| A | HIS1049 | proton shuttle (general acid/base), single electron shuttle |
| A | TYR1065 | electrostatic stabiliser |
| A | THR1066 | proton shuttle (general acid/base), single electron shuttle |
| A | CYS1245 | alter redox potential |






