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| HAMAP annotation rule MF_00137 |
| Accession | MF_00137 |
| Dates | 1-JUN-2001 (Created) 16-MAY-2011 (Last updated, Version 31) |
| Name | SAICAR_synth |
| Scope | Bacteria Archaea |
| Triggered by |
| Identifier |
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| Protein name |
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| CATALYTIC ACTIVITY | ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate = ADP + phosphate + (S)-2-(5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamido)succinate. |
| PATHWAY | Purine metabolism; IMP biosynthesis via de novo pathway; 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate; step 1/2. |
| SIMILARITY | Belongs to the SAICAR synthetase family. |
| Pfam | PF01259; SAICAR_synt; 1; |
| TIGRFAMs | TIGR00081; PurC; 1; |
| PROSITE | PS01057; SAICAR_SYNTHETASE_1; 1; |
| PS01058; SAICAR_SYNTHETASE_2; 1; |
| Size range: | 216-367 amino acids |
| Related Rules: | None |
| Template: | P0A7D7 (PUR7_ECOLI) |
| Fusion: | None |
| Comments: | Highly divergent ARCFU and HALSA; sequences not included in alignment. Seems to be absent in AERPE. Some of the Alphaproteobacteria have a possible second copy. |