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Crystallization and preliminary X-ray diffraction analysis of the S-adenosylhomocysteine hydrolase (SAHH) from Thermotoga maritima.

ABSTRACT: S-Adenosylhomocysteine hydrolase (SAHH) catalyzes the reversible conversion of S-adenosylhomocysteine into adenosine and homocysteine. The SAHH from Thermotoga maritima (TmSAHH) was expressed in Escherichia coli and the recombinant protein was purified and crystallized. TmSAHH crystals belonging to space group C2, with unit-cell parameters a=106.3, b=112.0, c=164.9?Å, ?=103.5°, were obtained by the sitting-drop vapour-diffusion method and diffracted to 2.85?Å resolution. Initial phase determination by molecular replacement clearly indicated that the crystal contains one homotetramer per asymmetric unit. Further refinement of the crystal structure is in progress.

SUBMITTER: He M

PROVIDER: S-EPMC4231867 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Crystallization and preliminary X-ray diffraction analysis of the S-adenosylhomocysteine hydrolase (SAHH) from Thermotoga maritima.

He Miao M Zheng Yingying Y Huang Chun-Hsiang CH Qian Guojun G Xiao Xiansha X Ko Tzu-Ping TP Shao Weilan W Guo Rey-Ting RT

Acta crystallographica. Section F, Structural biology communications 20141031 Pt 11

S-Adenosylhomocysteine hydrolase (SAHH) catalyzes the reversible conversion of S-adenosylhomocysteine into adenosine and homocysteine. The SAHH from Thermotoga maritima (TmSAHH) was expressed in Escherichia coli and the recombinant protein was purified and crystallized. TmSAHH crystals belonging to space group C2, with unit-cell parameters a=106.3, b=112.0, c=164.9 Å, β=103.5°, were obtained by the sitting-drop vapour-diffusion method and diffracted to 2.85 Å resolution. Initial phase determinat ...[more]

PMID: 25372832

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