3FSU
Crystal Structure of Escherichia coli Methylenetetrahydrofolate Reductase Double Mutant Phe223LeuGlu28Gln complexed with methyltetrahydrofolate
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004489 | molecular_function | methylenetetrahydrofolate reductase [NAD(P)H] activity |
| A | 0005829 | cellular_component | cytosol |
| A | 0006555 | biological_process | methionine metabolic process |
| A | 0008652 | biological_process | amino acid biosynthetic process |
| A | 0009086 | biological_process | methionine biosynthetic process |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0032991 | cellular_component | protein-containing complex |
| A | 0035999 | biological_process | tetrahydrofolate interconversion |
| A | 0051087 | molecular_function | protein-folding chaperone binding |
| A | 0071949 | molecular_function | FAD binding |
| A | 0106312 | molecular_function | methylenetetrahydrofolate reductase (NADH) activity |
| C | 0004489 | molecular_function | methylenetetrahydrofolate reductase [NAD(P)H] activity |
| C | 0005829 | cellular_component | cytosol |
| C | 0006555 | biological_process | methionine metabolic process |
| C | 0008652 | biological_process | amino acid biosynthetic process |
| C | 0009086 | biological_process | methionine biosynthetic process |
| C | 0016491 | molecular_function | oxidoreductase activity |
| C | 0032991 | cellular_component | protein-containing complex |
| C | 0035999 | biological_process | tetrahydrofolate interconversion |
| C | 0051087 | molecular_function | protein-folding chaperone binding |
| C | 0071949 | molecular_function | FAD binding |
| C | 0106312 | molecular_function | methylenetetrahydrofolate reductase (NADH) activity |
| E | 0004489 | molecular_function | methylenetetrahydrofolate reductase [NAD(P)H] activity |
| E | 0005829 | cellular_component | cytosol |
| E | 0006555 | biological_process | methionine metabolic process |
| E | 0008652 | biological_process | amino acid biosynthetic process |
| E | 0009086 | biological_process | methionine biosynthetic process |
| E | 0016491 | molecular_function | oxidoreductase activity |
| E | 0032991 | cellular_component | protein-containing complex |
| E | 0035999 | biological_process | tetrahydrofolate interconversion |
| E | 0051087 | molecular_function | protein-folding chaperone binding |
| E | 0071949 | molecular_function | FAD binding |
| E | 0106312 | molecular_function | methylenetetrahydrofolate reductase (NADH) activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 28 |
| Details | BINDING SITE FOR RESIDUE FAD A 395 |
| Chain | Residue |
| A | THR59 |
| A | TYR131 |
| A | ALA132 |
| A | ALA150 |
| A | TYR152 |
| A | HIS156 |
| A | GLU158 |
| A | ALA159 |
| A | ASP165 |
| A | ASN168 |
| A | ARG171 |
| A | TYR60 |
| A | LYS172 |
| A | ILE181 |
| A | GLN183 |
| A | TYR275 |
| A | HOH322 |
| A | HOH338 |
| A | HOH364 |
| A | HOH368 |
| A | C2F995 |
| A | ALA62 |
| A | HIS88 |
| A | THR90 |
| A | LEU117 |
| A | ARG118 |
| A | GLY119 |
| A | ASP120 |
| site_id | AC2 |
| Number of Residues | 30 |
| Details | BINDING SITE FOR RESIDUE FAD C 395 |
| Chain | Residue |
| C | THR59 |
| C | TYR60 |
| C | HIS88 |
| C | LEU117 |
| C | ARG118 |
| C | GLY119 |
| C | ASP120 |
| C | TYR131 |
| C | ALA132 |
| C | ALA150 |
| C | TYR152 |
| C | HIS156 |
| C | GLU158 |
| C | ALA159 |
| C | ASP165 |
| C | ASN168 |
| C | ARG171 |
| C | LYS172 |
| C | ILE181 |
| C | GLN183 |
| C | TYR275 |
| C | HOH341 |
| C | HOH344 |
| C | HOH382 |
| C | HOH398 |
| C | HOH426 |
| C | HOH454 |
| C | HOH456 |
| C | HOH477 |
| C | MRY5320 |
| site_id | AC3 |
| Number of Residues | 25 |
| Details | BINDING SITE FOR RESIDUE FAD E 395 |
| Chain | Residue |
| E | THR59 |
| E | TYR60 |
| E | HIS88 |
| E | THR90 |
| E | LEU117 |
| E | ARG118 |
| E | GLY119 |
| E | ASP120 |
| E | TYR131 |
| E | ALA132 |
| E | ALA150 |
| E | TYR152 |
| E | HIS156 |
| E | GLU158 |
| E | ALA159 |
| E | ASP165 |
| E | ASN168 |
| E | ARG171 |
| E | LYS172 |
| E | ILE181 |
| E | GLN183 |
| E | TYR275 |
| E | HOH315 |
| E | HOH350 |
| E | C2F995 |
| site_id | AC4 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE C2F A 995 |
| Chain | Residue |
| A | GLN28 |
| A | ASP120 |
| A | GLN183 |
| A | SER215 |
| A | GLN219 |
| A | LEU223 |
| A | THR227 |
| A | TYR275 |
| A | LEU277 |
| A | ARG279 |
| A | HOH364 |
| A | HOH366 |
| A | HOH389 |
| A | FAD395 |
| A | HOH406 |
| A | HOH452 |
| site_id | AC5 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE C2F E 995 |
| Chain | Residue |
| E | GLN28 |
| E | ASP120 |
| E | GLN183 |
| E | SER215 |
| E | GLN219 |
| E | LEU223 |
| E | THR227 |
| E | TYR275 |
| E | LEU277 |
| E | ARG279 |
| E | HOH336 |
| E | HOH348 |
| E | HOH350 |
| E | HOH394 |
| E | FAD395 |
| site_id | AC6 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE MRY C5320 |
| Chain | Residue |
| C | GLN28 |
| C | GLN183 |
| C | PHE184 |
| C | LEU277 |
| C | HOH356 |
| C | HOH359 |
| C | HOH360 |
| C | FAD395 |
| C | HOH399 |
| site_id | AC7 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE SO4 E 305 |
| Chain | Residue |
| E | ARG230 |
| E | PRO232 |
| E | ALA233 |
| E | TRP234 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 3 |
| Details | Active site: {"description":"Proton donor/acceptor","evidences":[{"source":"PubMed","id":"11371182","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"16114881","evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 9 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"16114881","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1ZPT","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 30 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"16114881","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19610625","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1ZPT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3FST","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3FSU","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 5 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"19610625","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3FST","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3FSU","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 3 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"16114881","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19610625","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1ZPT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3FST","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI6 |
| Number of Residues | 3 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"16114881","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1ZP4","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI7 |
| Number of Residues | 3 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"16114881","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19610625","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3FSU","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1b5t |
| Chain | Residue | Details |
| A | GLN28 | |
| A | ASP120 |
| site_id | CSA2 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1b5t |
| Chain | Residue | Details |
| C | GLN28 | |
| C | ASP120 |
| site_id | CSA3 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1b5t |
| Chain | Residue | Details |
| E | GLN28 | |
| E | ASP120 |
| site_id | MCSA1 |
| Number of Residues | 5 |
| Details | M-CSA 120 |
| Chain | Residue | Details |
| A | SER26 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
| A | GLN28 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
| A | ASP120 | electrostatic stabiliser, hydrogen bond acceptor |
| A | LEU223 | steric locator |
| A | HIS273 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
| site_id | MCSA2 |
| Number of Residues | 5 |
| Details | M-CSA 120 |
| Chain | Residue | Details |
| site_id | MCSA3 |
| Number of Residues | 5 |
| Details | M-CSA 120 |
| Chain | Residue | Details |
| C | SER26 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
| C | GLN28 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |
| C | ASP120 | electrostatic stabiliser, hydrogen bond acceptor |
| C | LEU223 | steric locator |
| C | HIS273 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor, proton relay |






