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Crystal structure of the RNA 2′,3′‐cyclic phosphodiesterase from Deinococcus radiodurans
Author(s) -
Han Wanchun,
Cheng Jiahui,
Zhou Congli,
Hua Yuejin,
Zhao Ye
Publication year - 2017
Publication title -
acta crystallographica section f
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 37
ISSN - 2053-230X
DOI - 10.1107/s2053230x17004964
Subject(s) - deinococcus radiodurans , phosphodiesterase , rna , chemistry , crystallography , nucleotide , enzyme , deinococcus , biochemistry , biology , dna , gene
2′,3′‐Cyclic phosphodiesterase (CPDase) homologues have been found in all domains of life and are involved in diverse RNA and nucleotide metabolisms. The CPDase from Deinococcus radiodurans was crystallized and the crystals diffracted to 1.6 Å resolution, which is the highest resolution currently known for a CPDase structure. Structural comparisons revealed that the enzyme is in an open conformation in the absence of substrate. Nevertheless, the active site is well formed, and the representative motifs interact with sulfate ion, which suggests a conserved catalytic mechanism.