2OZ0
Mechanistic and Structural Studies of H373Q Flavocytochrome b2: Effects of Mutating the Active Site Base
Functional Information from GO Data
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 12 |
| Details | BINDING SITE FOR RESIDUE HEM A 560 |
| Chain | Residue |
| A | PHE39 |
| A | TYR143 |
| A | LEU199 |
| A | LEU230 |
| A | HIS43 |
| A | PRO44 |
| A | GLY45 |
| A | ILE50 |
| A | HIS66 |
| A | TYR74 |
| A | TYR97 |
| A | GLN139 |
| site_id | AC2 |
| Number of Residues | 21 |
| Details | BINDING SITE FOR RESIDUE FMN A 569 |
| Chain | Residue |
| A | TYR144 |
| A | SER195 |
| A | ALA196 |
| A | THR197 |
| A | ALA198 |
| A | SER228 |
| A | GLN252 |
| A | TYR254 |
| A | THR280 |
| A | LYS349 |
| A | SER371 |
| A | GLN373 |
| A | GLY374 |
| A | ARG376 |
| A | ASP409 |
| A | GLY410 |
| A | GLY411 |
| A | ARG413 |
| A | LEU431 |
| A | GLY432 |
| A | ARG433 |
| site_id | AC3 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE FMN B 570 |
| Chain | Residue |
| B | TYR144 |
| B | SER195 |
| B | ALA196 |
| B | THR197 |
| B | ALA198 |
| B | SER228 |
| B | GLN252 |
| B | TYR254 |
| B | THR280 |
| B | LYS349 |
| B | SER371 |
| B | GLY374 |
| B | ARG376 |
| B | ASP409 |
| B | GLY410 |
| B | GLY411 |
| B | ARG413 |
| B | LEU431 |
| B | GLY432 |
| B | ARG433 |
| B | LEU436 |
| B | PYR571 |
| site_id | AC4 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE PYR B 571 |
| Chain | Residue |
| B | TYR143 |
| B | ALA198 |
| B | TYR254 |
| B | GLN373 |
| B | ARG376 |
| B | FMN570 |
Functional Information from PROSITE/UniProt
| site_id | PS00191 |
| Number of Residues | 8 |
| Details | CYTOCHROME_B5_1 Cytochrome b5 family, heme-binding domain signature. FLPNHPGG |
| Chain | Residue | Details |
| A | PHE39-GLY46 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 77 |
| Details | Domain: {"description":"Cytochrome b5 heme-binding","evidences":[{"source":"PROSITE-ProRule","id":"PRU00279","evidenceCode":"ECO:0000255"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 2 |
| Details | Active site: {"description":"Proton acceptor","evidences":[{"source":"PubMed","id":"17563122","evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 2 |
| Details | Binding site: {"description":"axial binding residue","evidences":[{"source":"PubMed","id":"11914072","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"2329585","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1FCB","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1KBI","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 33 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"11914072","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"2329585","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1FCB","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"1KBI","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 4 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"11914072","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1KBI","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 5 |
| Details | Annotated By Reference To The Literature 1fcb |
| Chain | Residue | Details |
| A | TYR254 | |
| A | TYR143 | |
| A | ARG376 | |
| A | ASP282 | |
| A | GLN373 |
| site_id | CSA2 |
| Number of Residues | 5 |
| Details | Annotated By Reference To The Literature 1fcb |
| Chain | Residue | Details |
| B | TYR254 | |
| B | TYR143 | |
| B | ARG376 | |
| B | ASP282 | |
| B | GLN373 |
| site_id | MCSA1 |
| Number of Residues | 3 |
| Details | M-CSA 102 |
| Chain | Residue | Details |
| A | TYR254 | electrostatic stabiliser, hydrogen bond donor |
| A | ASP282 | electrostatic stabiliser, hydrogen bond acceptor |
| A | GLN373 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
| site_id | MCSA2 |
| Number of Residues | 3 |
| Details | M-CSA 102 |
| Chain | Residue | Details |
| B | TYR254 | electrostatic stabiliser, hydrogen bond donor |
| B | ASP282 | electrostatic stabiliser, hydrogen bond acceptor |
| B | GLN373 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
