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3NIP

Crystal structure of Pseudomonas aeruginosa guanidinopropionase complexed with 1,6-diaminohexane

Summary for 3NIP
Entry DOI10.2210/pdb3nip/pdb
Related3NIO 3NIQ
Descriptor3-guanidinopropionase, HEXANE-1,6-DIAMINE (3 entities in total)
Functional Keywordsguanidinopropionase, gpua, pa0288, hydrolase
Biological sourcePseudomonas aeruginosa
Total number of polymer chains6
Total formula weight212368.69
Authors
Lee, S.J.,Kim, H.S.,Kim, D.J.,Yoon, H.J.,Kim, K.H.,Yoon, J.Y.,Jang, J.Y.,Im, H.,An, D.,Suh, S.W. (deposition date: 2010-06-16, release date: 2011-06-01, Last modification date: 2023-11-01)
Primary citationLee, S.J.,Kim, D.J.,Kim, H.S.,Lee, B.I.,Yoon, H.J.,Yoon, J.Y.,Kim, K.H.,Jang, J.Y.,Im, H.N.,An, D.R.,Song, J.S.,Kim, H.J.,Suh, S.W.
Crystal structures of Pseudomonas aeruginosa guanidinobutyrase and guanidinopropionase, members of the ureohydrolase superfamily
J.Struct.Biol., 175:329-338, 2011
Cited by
PubMed Abstract: Pseudomonas aeruginosa guanidinobutyrase (GbuA) and guanidinopropionase (GpuA) catalyze the hydrolysis of 4-guanidinobutyrate and 3-guanidinopropionate, respectively. They belong to the ureohydrolase superfamily, which includes arginase, agmatinase, proclavaminate amidinohydrolase, and formiminoglutamase. In this study, we have determined the crystal structures of GbuA and GpuA from P. aeruginosa to provide a structural insight into their substrate specificity. Although GbuA and GpuA share a common structural fold of the typical ureohydrolase superfamily, they exhibit significant variations in two active site loops. Mutagenesis of Met161 of GbuA and Tyr157 of GpuA, both of which are located in the active site loop 1 and predicted to be involved in substrate recognition, significantly affected their enzymatic properties, implying their important roles in catalysis.
PubMed: 21600989
DOI: 10.1016/j.jsb.2011.05.002
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.5 Å)
Structure validation

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