2j3l

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Prolyl-tRNA synthetase from Enterococcus faecalis complexed with a prolyl-adenylate analogue ('5'-O-(N-(L-PROLYL)-SULFAMOYL)ADENOSINE)

Structural highlights

2j3l is a 2 chain structure with sequence from Enterococcus faecalis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Ligands:P5A, SO4
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SYP_ENTFA Catalyzes the attachment of proline to tRNA(Pro) in a two-step reaction: proline is first activated by ATP to form Pro-AMP and then transferred to the acceptor end of tRNA(Pro). As ProRS can inadvertently accommodate and process non-cognate amino acids such as alanine and cysteine, to avoid such errors it has two additional distinct editing activities against alanine. One activity is designated as 'pretransfer' editing and involves the tRNA(Pro)-independent hydrolysis of activated Ala-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Ala-tRNA(Pro). The misacylated Cys-tRNA(Pro) is not edited by ProRS.[HAMAP-Rule:MF_01569]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

Contents


PDB ID 2j3l

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OCA

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