1JSW
NATIVE L-ASPARTATE AMMONIA LYASE
Summary for 1JSW
| Entry DOI | 10.2210/pdb1jsw/pdb |
| Descriptor | L-ASPARTATE AMMONIA-LYASE, beta-D-glucopyranose, ACETATE ION, ... (4 entities in total) |
| Functional Keywords | amino acid ammonia-lyase |
| Biological source | Escherichia coli |
| Total number of polymer chains | 4 |
| Total formula weight | 210046.89 |
| Authors | Shi, W.,Dunbar, J.,Farber, G.K. (deposition date: 1997-02-19, release date: 1997-06-16, Last modification date: 2024-02-07) |
| Primary citation | Shi, W.,Dunbar, J.,Jayasekera, M.M.,Viola, R.E.,Farber, G.K. The structure of L-aspartate ammonia-lyase from Escherichia coli. Biochemistry, 36:9136-9144, 1997 Cited by PubMed Abstract: The X-ray crystal structure of l-aspartate ammonia-lyase has been determined to 2.8 A resolution. The enzyme contains three domains, and each domain is composed almost completely of alpha helices. The central domain is composed of five long helices. In the tetramer, these five helices form a 20-helix cluster. Such clusters have also been seen in delta-crystallin and in fumarase. The active site of aspartase has been located in a region that contains side chains from three different subunits. The structure of the apoenzyme has made it possible to identify some of the residues that are involved in binding the substrate. These residues have been examined by site-directed mutagenesis, and their putative roles have been assigned [Jayasekera, M. M. K., Shi, W., Farber, G. K., & Viola, R. E. (1997) Biochemistry 36, 9145-9150]. PubMed: 9230045DOI: 10.1021/bi9704515 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.7 Å) |
Structure validation
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