6dam

Crystal structure of lanthanide-dependent methanol dehydrogenase XoxF from Methylomicrobium buryatense 5G

spinqualitylabelsall models 6dam, resolution 1.85Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6dam is a 1 chain structure with sequence from Methylotuvimicrobium buryatense 5G. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.85Å Ligands: LA, NA, PQQ Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0A3F2YLY8_9GAMM Publication Abstract from PubMed In methylotrophic bacteria, which use one-carbon (C1) compounds as a carbon source, methanol is oxidized by pyrroloquinoline quinone (PQQ)-dependent methanol dehydrogenase (MDH) enzymes. Methylotrophic genomes generally encode two distinct MDHs, MxaF and XoxF. MxaF is a well-studied, calcium-dependent heterotetrameric enzyme whereas XoxF is a lanthanide-dependent homodimer. Recent studies suggest that XoxFs are likely the functional MDHs in many environments. In methanotrophs, methylotrophs that utilize methane, interactions between particulate methane monooxygenase (pMMO) and MxaF have been detected. To investigate the possibility of interactions between pMMO and XoxF, XoxF was isolated from the methanotroph Methylomicrobium buryatense 5GB1C (5G-XoxF). Purified 5G-XoxF exhibits a specific activity of 0.16 mumol DCPIP reduced min(-1) mg(-1). The 1.85 A resolution crystal structure reveals a La(III) ion in the active site, in contrast to the calcium ion in MxaF. The overall fold is similar to other MDH structures, but 5G-XoxF is a monomer in solution. An interaction between 5G-XoxF and its cognate pMMO was detected by biolayer interferometry, with a KD value of 50 +/- 17 muM. These results suggest an alternative model of MDH-pMMO association, in which a XoxF monomer may bind to pMMO, and underscore the potential importance of lanthanide-dependent MDHs in biological methane oxidation. Structure and function of the lanthanide-dependent methanol dehydrogenase XoxF from the methanotroph Methylomicrobium buryatense 5GB1C.,Deng YW, Ro SY, Rosenzweig AC J Biol Inorg Chem. 2018 Aug 21. pii: 10.1007/s00775-018-1604-2. doi:, 10.1007/s00775-018-1604-2. PMID:30132076 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Methanol dehydrogenase

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