7e7g

From Proteopedia

2-aminoethylphosphonate:pyruvate aminotransferase (AEPT) native

Structural highlights

7e7g is a 1 chain structure with sequence from Pseudomonas aeruginosa PAO1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.35Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PHNW_PSEAE Involved in phosphonate degradation.

Publication Abstract from PubMed

2-aminoethylphosphonate:pyruvate aminotransferase (AEPT) is a pyridoxal 5'-phosphate (PLP)-dependent enzyme that mediates the first step in the AEP degradation pathway. It catalyzes the transamination of 2-aminoethylphosphonate (AEP) with pyruvate to phosphonoacetaldehyde and l-alanine respectively. Although the enzyme is widely present in microorganisms, there are few reports on the structure and function of AEPT to date. Here we report the crystal structure of AEPT from Pseudomonas aeruginosa PAO1 (PaAEPT) to 2.35 A resolution in the absence of the PLP cofactor. PaAEPT crystallizes in space group P21212 with one monomer per asymmetric unit. Analytical ultracentrifugation analysis shows that PaAEPT forms a stable dimer in solution. Our work provides a valuable starting point for further functional and mechanistic studies of the AEP degradation pathway.

Structural characterization of a 2-aminoethylphosphonate:pyruvate aminotransferase from Pseudomonas aeruginosa PAO1.,Jia H, Chen Y, Chen Y, Liu R, Zhang Q, Bartlam M Biochem Biophys Res Commun. 2021 Mar 17;552:114-119. doi:, 10.1016/j.bbrc.2021.03.046. PMID:33743347^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Jia H, Chen Y, Chen Y, Liu R, Zhang Q, Bartlam M. Structural characterization of a 2-aminoethylphosphonate:pyruvate aminotransferase from Pseudomonas aeruginosa PAO1. Biochem Biophys Res Commun. 2021 May 7;552:114-119. PMID:33743347 doi:10.1016/j.bbrc.2021.03.046