1tdt
THREE-DIMENSIONAL STRUCTURE OF TETRAHYDRODIPICOLINATE-N-SUCCINLYTRANSFERASE
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| , resolution 2.2Å | |||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
OverviewOverview
The conversion of tetrahydrodipicolinate and succinyl-CoA to N-succinyltetrahydrodipicolinate and CoA is catalyzed by tetrahydrodipicolinate N-succinyltransferase and is the committed step in the succinylase pathway by which bacteria synthesize L-lysine and meso-diaminopimelate, a component of peptidoglycan. The X-ray crystal structure of THDP succinyltransferase has been determined to 2.2 A resolution and has been refined to a crystallographic R-factor of 17.0%. The enzyme is trimeric and displays the left-handed parallel beta-helix (L beta H) structural motif encoded by the "hexapeptide repeat" amino acid sequence motif [Raetz, C.R.H., & Roderick, S.L. (1995) Science 270, 997-1000]. The approximate location of the active site of THDP succinyltransferase is suggested by the proximity of binding sites for two inhibitors: p-(chloromercuri)benzenesulfonic acid and cobalt ion, both of which bind to the L beta H domain.
About this StructureAbout this Structure
1TDT is a Single protein structure of sequence from Mycobacterium bovis. Full crystallographic information is available from OCA.
ReferenceReference
Three-dimensional structure of tetrahydrodipicolinate N-succinyltransferase., Beaman TW, Binder DA, Blanchard JS, Roderick SL, Biochemistry. 1997 Jan 21;36(3):489-94. PMID:9012664
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