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Article

Structural Characterization of Heme Environmental Mutants of CgHmuT that Shuttles Heme Molecules to Heme Transporters.

International journal of molecular sciences - 27 May 2016

Muraki Norifumi, Kitatsuji Chihiro, Ogura Mariko, Uchida Takeshi, Ishimori Koichiro, Aono Shigetoshi

Abstract excerpt

Corynebacteria contain a heme uptake system encoded in hmuTUV genes, in which HmuT protein acts as a heme binding protein to transport heme to the cognate transporter HmuUV. The crystal structure of HmuT from Corynebacterium glutamicum (CgHmuT) reveals that heme is accommodated in the central cleft with His141 and Tyr240 as the axial ligands and that Tyr240 forms a hydrogen bond with Arg242. In this work, the...

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PMID: 27240352
DOI: 10.3390/ijms17060829
PMCID: PMC4926363

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