D3ZLZ7 (IMDH1_RAT) Reviewed, UniProtKB/Swiss-Prot
Last modified
April 3, 2013.
Version 23.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Inosine-5'-monophosphate dehydrogenase 1 Short name=IMP dehydrogenase 1 Short name=IMPD 1 Short name=IMPDH 1 EC=1.1.1.205 | ||
| Gene names |
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| Organism | Rattus norvegicus (Rat) [Reference proteome] | ||
| Taxonomic identifier | 10116 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Rattus![]() |
Protein attributes
| Sequence length | 514 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Inferred from homology |
General annotation (Comments)
| Function | Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Could also have a single-stranded nucleic acid-binding activity and could play a role in RNA and/or DNA metabolism. It may also have a role in the development of malignancy and the growth progression of some tumors By similarity. HAMAP-Rule MF_03156 |
| Catalytic activity | Inosine 5'-phosphate + NAD+ + H2O = xanthosine 5'-phosphate + NADH. HAMAP-Rule MF_03156 |
| Cofactor | Potassium By similarity. |
| Enzyme regulation | Mycophenolic acid (MPA) is a non-competitive inhibitor that prevents formation of the closed enzyme conformation by binding to the same site as the amobile flap. In contrast, mizoribine monophosphate (MZP) is a competitive inhibitor that induces the closed conformation. MPA is a potent inhibitor of mammalian IMPDHs but a poor inhibitor of the bacterial enzymes. MZP is a more potent inhibitor of bacterial IMPDH By similarity. HAMAP-Rule MF_03156 |
| Pathway | Purine metabolism; XMP biosynthesis via de novo pathway; XMP from IMP: step 1/1. HAMAP-Rule MF_03156 |
| Subunit structure | Homotetramer By similarity. |
| Subcellular location | |
| Sequence similarities | Belongs to the IMPDH/GMPR family. Contains 2 CBS domains. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Initiator methionine | 1 | 1 | Removed By similarity | ||||||
| Chain | 2 – 514 | 513 | Inosine-5'-monophosphate dehydrogenase 1 HAMAP-Rule MF_03156 | PRO_0000415673 | |||||
Regions | |||||||||
| Domain | 114 – 173 | 60 | CBS 1 | ||||||
| Domain | 179 – 237 | 59 | CBS 2 | ||||||
| Nucleotide binding | 274 – 276 | 3 | NAD By similarity | ||||||
| Nucleotide binding | 324 – 326 | 3 | NAD By similarity | ||||||
| Region | 364 – 366 | 3 | IMP binding By similarity | ||||||
| Region | 387 – 388 | 2 | IMP binding By similarity | ||||||
| Region | 411 – 415 | 5 | IMP binding By similarity | ||||||
Sites | |||||||||
| Active site | 331 | 1 | Thioimidate intermediate By similarity | ||||||
| Metal binding | 326 | 1 | Potassium; via carbonyl oxygen By similarity | ||||||
| Metal binding | 328 | 1 | Potassium; via carbonyl oxygen By similarity | ||||||
| Metal binding | 331 | 1 | Potassium; via carbonyl oxygen By similarity | ||||||
| Metal binding | 500 | 1 | Potassium; via carbonyl oxygen; shared with tetrameric partner By similarity | ||||||
| Metal binding | 501 | 1 | Potassium; via carbonyl oxygen; shared with tetrameric partner By similarity | ||||||
| Metal binding | 502 | 1 | Potassium; via carbonyl oxygen; shared with tetrameric partner By similarity | ||||||
| Binding site | 329 | 1 | IMP By similarity | ||||||
| Binding site | 441 | 1 | IMP By similarity | ||||||
Sequences
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References
| [1] | "Genome sequence of the Brown Norway rat yields insights into mammalian evolution." Gibbs R.A., Weinstock G.M., Metzker M.L., Muzny D.M., Sodergren E.J., Scherer S., Scott G., Steffen D., Worley K.C., Burch P.E., Okwuonu G., Hines S., Lewis L., Deramo C., Delgado O., Dugan-Rocha S., Miner G., Morgan M. Collins F.S.Nature 428:493-521(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Brown Norway. |
| [2] | Mural R.J., Adams M.D., Myers E.W., Smith H.O., Venter J.C. Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Brown Norway. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AC096035 Genomic DNA. No translation available. CH473959 Genomic DNA. Translation: EDM15208.1. |
| IPI | IPI00480747. |
| UniGene | Rn.104925. |
3D structure databases | |
| ProteinModelPortal | D3ZLZ7. |
| ModBase | Search... |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| UCSC | RGD:1311108. rat. |
Organism-specific databases | |
| RGD | 1311108. Impdh1. |
Phylogenomic databases | |
| OrthoDB | EOG40VVP8. |
Enzyme and pathway databases | |
| UniPathway | UPA00601; UER00295. |
Family and domain databases | |
| Gene3D | 3.20.20.70. 1 hit. |
| HAMAP | MF_01964. IMPDH. |
| InterPro | IPR013785. Aldolase_TIM. IPR000644. Cysta_beta_synth_core. IPR005990. IMP_DH. IPR015875. IMP_DH/GMP_Rdtase_CS. IPR001093. IMP_DH_GMPRt. [Graphical view] |
| PANTHER | PTHR11911:SF6. PTHR11911:SF6. 1 hit. |
| Pfam | PF00571. CBS. 2 hits. PF00478. IMPDH. 1 hit. [Graphical view] |
| PIRSF | PIRSF000130. IMPDH. 1 hit. |
| SMART | SM00116. CBS. 2 hits. [Graphical view] |
| TIGRFAMs | TIGR01302. IMP_dehydrog. 1 hit. |
| PROSITE | PS51371. CBS. 2 hits. PS00487. IMP_DH_GMP_RED. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | IMDH1_RAT | ||||||||
| Accession | Primary (citable) accession number: D3ZLZ7 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with
