2g1a

Crystal structure of the complex between Apha class B acid phosphatase/phosphotransferaseCrystal structure of the complex between Apha class B acid phosphatase/phosphotransferase

Structural highlights 2g1a is a 2 chain structure with sequence from "bacillus_coli"_migula_1895 "bacillus coli" migula 1895. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: , Related: 1n8n, 1rmt, 1n9k, 1rmy, 1rmq, 2b82 Gene: aphA, napA ("Bacillus coli" Migula 1895) Activity: Acid phosphatase, with EC number 3.1.3.2 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [APHA_ECOLI] Dephosphorylates several organic phosphate monoesters including 3'- and 5'-nucleotides, 2'-deoxy-5'-nucleotides, pNPP, phenyl phosphate, glycerol 2-phosphate, ribose 5-phosphate, O-phospho-L-amino acids and phytic acid, showing the highest activity with aryl phosphoesters (pNPP, phenyl phosphate and O-phospho-L-tyrosine), and to a lesser extent with 3'- and 5'-nucleotides. No activity toward ATP, phosphodiesters, glycerol-1-phosphate, glucose 1-phosphate, glucose 6-phosphate, NADP, GTP or 3',5'-cAMP, ADP or ATP. Also has a phosphotransferase activity catalyzing the transfer of low-energy phosphate groups from organic phosphate monoesters to free hydroxyl groups of various organic compounds. Capable of transferring phosphate from either pNPP or UMP to adenosine or uridine. Does not exhibit nucleotide phosphomutase activity. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed AphA is a periplasmic acid phosphatase of Escherichia coli belonging to class B bacterial phosphatases, which is part of the DDDD superfamily of phosphohydrolases. The crystal structure of AphA has been determined at 2.2A and its resolution extended to 1.7A on an AuCl(3) derivative. This represents the first crystal structure of a class B bacterial phosphatase. Despite the lack of sequence homology, the AphA structure reveals a haloacid dehalogenase-like fold. This finding suggests that this fold could be conserved among members of the DDDD superfamily of phosphohydrolases. The active enzyme is a homotetramer built by using an extended N-terminal arm intertwining the four monomers. The active site of the native enzyme, as prepared, hosts a magnesium ion, which can be replaced by other metal ions. The structure explains the non-specific behaviour of AphA towards substrates, while a structure-based alignment with other phosphatases provides clues about the catalytic mechanism. The first structure of a bacterial class B Acid phosphatase reveals further structural heterogeneity among phosphatases of the haloacid dehalogenase fold.,Calderone V, Forleo C, Benvenuti M, Cristina Thaller M, Maria Rossolini G, Mangani S J Mol Biol. 2004 Jan 16;335(3):761-73. PMID:14687572 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Acid phosphatase

spinqualitylabelsall models 2g1a, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image