Detailed Information on Publication Record
2000
Crystal structure of the haloalkane dehalogenase from Sphingomonas paucimobilis UT26
MAREK, Jaromír, Jitka VÉVODOVÁ, Ivana KUTÁ-SMATANOVÁ, Y. NAGATA, L.A. SVENSSON et. al.Basic information
Original name
Crystal structure of the haloalkane dehalogenase from Sphingomonas paucimobilis UT26
Authors
MAREK, Jaromír (203 Czech Republic, guarantor), Jitka VÉVODOVÁ (203 Czech Republic, belonging to the institution), Ivana KUTÁ-SMATANOVÁ (203 Czech Republic), Y. NAGATA, L.A. SVENSSON, J. NEWMAN, M. TAKAGI and Jiří DAMBORSKÝ (203 Czech Republic)
Edition
Biochemistry, Washington, DC, USA, American Chemical Society, 2000, 0006-2960
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.221
RIV identification code
RIV/00216224:14310/00:00002430
Organization unit
Faculty of Science
UT WoS
000165355700009
Keywords in English
Crystal structure; haloalkane dehalogenase
Změněno: 2/5/2012 13:00, doc. RNDr. Jaromír Marek, Ph.D.
Abstract
V originále
The haloalkane dehalogenase from Sphingomonas paucimobilis UT26 (LinB) is the enzyme involved in the degradation ofthe important environmental pollutant g-hexachlorocyclohexane. The enzyme hydrolyzes a broad range of halogenated cyclic and aliphatic compounds. Here, we present the 1.58 A crystal structure of LinB and the 2.0 A structure of LinB with 1,3-propanediol, a product of debromination of 1,3-dibromopropane, in the active site of the enzyme. The enzyme belongs to the a/b-hydrolase family and contains a catalytic triad (Aspl08, His272, and Glu132) in the lipase-like topological arrangement previously proposed from mutagenesis experiments. The LinB structure was compared with the structures of haloalkane dehalogenase from Xanthobacter autotrophicus GJl0 and from Rhodococcus sp. and the structural features involved in the adaptation toward xenobiotic substrates were identified. The arrangement and composition of the a-helices in the cap domain results in the dif ferences in the size and shape of the active-site cavity and the entrance tunnel. This is the major determinant ofthe substrate specificity ofthis haloalkane dehalogenase.
Links
MSM 143100005, plan (intention) |
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