Human IMPDH2 treated with ATP, IMP, and 20 mM GTP. Fully compressed filament end reconstruction.
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| L [auth H] | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| L [auth H] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| L [auth H] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| K [auth D] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| K [auth D] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| K [auth D] | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| I [auth G] | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| I [auth G] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| I [auth G] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| H [auth C] | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| H [auth C] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| H [auth C] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| E [auth B] | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| E [auth B] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| E [auth B] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| C [auth E] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| C [auth E] | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| C [auth E] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| B [auth A] | SCOP2B Superfamily | CBS-domain pair | 8032324 | 3000123 | SCOP2B (2022-06-29) |
| B [auth A] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
| B [auth A] | SCOP2B Superfamily | Inosine monophosphate dehydrogenase (IMPDH) | 8043277 | 3000263 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| L [auth H] | IMPDH_1st | e6udqH1 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
| K [auth D] | IMPDH_2nd | e6udqD2 | A: a+b duplicates or obligate multimers | X: CBS-domain (From Topology) | H: CBS-domain (From Topology) | T: CBS-domain | F: IMPDH_2nd | ECOD (1.6) |
| K [auth D] | IMPDH_1st | e6udqD1 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
| I [auth G] | IMPDH_1st | e6udqG1 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
| H [auth C] | IMPDH_2nd | e6udqC1 | A: a+b duplicates or obligate multimers | X: CBS-domain (From Topology) | H: CBS-domain (From Topology) | T: CBS-domain | F: IMPDH_2nd | ECOD (1.6) |
| H [auth C] | IMPDH_1st | e6udqC2 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
| F | IMPDH_1st | e6udqF1 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
| E [auth B] | IMPDH_2nd | e6udqB1 | A: a+b duplicates or obligate multimers | X: CBS-domain (From Topology) | H: CBS-domain (From Topology) | T: CBS-domain | F: IMPDH_2nd | ECOD (1.6) |
| E [auth B] | IMPDH_1st | e6udqB2 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
| C [auth E] | IMPDH_1st | e6udqE1 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
| B [auth A] | IMPDH_2nd | e6udqA2 | A: a+b duplicates or obligate multimers | X: CBS-domain (From Topology) | H: CBS-domain (From Topology) | T: CBS-domain | F: IMPDH_2nd | ECOD (1.6) |
| B [auth A] | IMPDH_1st | e6udqA1 | A: a/b barrels | X: TIM beta/alpha-barrel | H: TIM barrels (From Topology) | T: TIM barrels | F: IMPDH_1st | ECOD (1.6) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF00571 | CBS domain (CBS) | CBS domain | CBS domains are small intracellular modules that pair together to form a stable globular domain [2]. This family represents a single CBS domain. Pairs of these domains have been termed a Bateman domain [6]. CBS domains have been shown to bind ligands ... | Domain | |
| PF00478 | IMP dehydrogenase / GMP reductase domain (IMPDH) | IMP dehydrogenase / GMP reductase domain | This family is involved in biosynthesis of guanosine nucleotide. Members of this family contain a TIM barrel structure. In the inosine monophosphate dehydrogenases 2 CBS domains Pfam:PF00571 are inserted in the TIM barrel [2]. This family is a membe ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR001093 | IMP dehydrogenase/GMP reductase | Domain | |
| IPR013785 | Aldolase-type TIM barrel | Homologous Superfamily | |
| IPR005990 | Inosine-5'-monophosphate dehydrogenase | Family | |
| IPR015875 | IMP dehydrogenase / GMP reductase, conserved site | Conserved Site | |
| IPR000644 | CBS domain | Domain |














