The tetrameric structure of haloalkane dehalogenase DpaA from Paraglaciecola agarilytica NO2The tetrameric structure of haloalkane dehalogenase DpaA from Paraglaciecola agarilytica NO2

Structural highlights

7avr is a 8 chain structure with sequence from Paraglaciecola agarilytica NO2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

K6XNL5_9ALTE

Publication Abstract from PubMed

Haloalkane dehalogenases (EC 3.8.1.5) are microbial enzymes that catalyse the hydrolytic conversion of halogenated compounds, resulting in a halide ion, a proton and an alcohol. These enzymes are used in industrial biocatalysis, bioremediation and biosensing of environmental pollutants or for molecular tagging in cell biology. The novel haloalkane dehalogenase DpaA described here was isolated from the psychrophilic and halophilic bacterium Paraglaciecola agarilytica NO2, which was found in marine sediment collected from the East Sea near Korea. Gel-filtration experiments and size-exclusion chromatography provided information about the dimeric composition of the enzyme in solution. The DpaA enzyme was crystallized using the sitting-drop vapour-diffusion method, yielding rod-like crystals that diffracted X-rays to 2.0 A resolution. Diffraction data analysis revealed a case of merohedral twinning, and subsequent structure modelling and refinement resulted in a tetrameric model of DpaA, highlighting an uncommon multimeric nature for a protein belonging to haloalkane dehalogenase subfamily I.

The tetrameric structure of the novel haloalkane dehalogenase DpaA from Paraglaciecola agarilytica NO2.,Mazur A, Prudnikova T, Grinkevich P, Mesters JR, Mrazova D, Chaloupkova R, Damborsky J, Kuty M, Kolenko P, Kuta Smatanova I Acta Crystallogr D Struct Biol. 2021 Mar 1;77(Pt 3):347-356. doi:, 10.1107/S2059798321000486. Epub 2021 Feb 17. PMID:33645538[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Mazur A, Prudnikova T, Grinkevich P, Mesters JR, Mrazova D, Chaloupkova R, Damborsky J, Kuty M, Kolenko P, Kuta Smatanova I. The tetrameric structure of the novel haloalkane dehalogenase DpaA from Paraglaciecola agarilytica NO2. Acta Crystallogr D Struct Biol. 2021 Mar 1;77(Pt 3):347-356. PMID:33645538 doi:10.1107/S2059798321000486

7avr, resolution 2.00Å

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