Protein Family Models

This domain is found at the C-terminus of adenylosuccinate lyase(ASL; PurB in E. coli). It has been identified in bacteria, eukaryotes and archaea and is found together with the lyase domain Pfam:PF00206. ASL catalyses the cleavage of succinylaminoimidazole carboxamide ribotide to aminoimidazole carboxamide ribotide and fumarate and the cleavage of adenylosuccinate to adenylate and fumarate [1]. [1]. 8530047. Characterization of the cDNA and the gene encoding murine adenylosuccinate lyase. Wong LJ, O'Brien WE;. Genomics 1995;28:341-343. (from Pfam)

Date:

2024-10-16

Members of this family include fumarate hydratase, L-aspartate ammonia-lyase, argininosuccinate lyase, and adenylosuccinate lyase. All are classified as lyases, meaning these enzymes break a bond by an eliminating reaction that does not involve hydrolysis or oxidation.

Date:

2024-08-14

Gene:

purB

Date:

2021-07-23

adenylosuccinate lyase catalyzes two non-sequential steps in de novo AMP synthesis: converts (S)-2-(5-amino-1-(5-phospho-D-ribosyl)imidazole-4- carboxamido)succinate (SAICAR) to fumarate plus 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide, and thereby also contributes to de novo IMP synthesis, and converts succinyladenosine monophosphate (SAMP) to AMP and fumarate

Date:

2024-12-17

This family consists of adenylosuccinate lyase, the enzyme that catalyzes step 8 in the purine biosynthesis pathway for de novo synthesis of IMP and also the final reaction in the two-step sequence from IMP to AMP.

Gene:

purB

Date:

2021-04-27