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Agrisera
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Store lyophilized/reconstituted at -20°C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
For reconstitution add 100 µL of sterile water.
Specific Species Reactivity: Chlamydomonas reinhardtii, recombinant HydA2 expressed in E.coli
HydA2 encodes an oxygen-sensitive, chloroplast-localized [FeFe]-hydrogenase that is induced under anaerobic conditions in the green alga Chlamydomonas reinhardtii. The gene product is synthesized as a nuclear-encoded precursor that is imported into the chloroplast, where it functions in cellular hydrogen metabolism. HydA2 is a ~505 amino-acid enzyme (detected as an ~49 kDa protein in anaerobically induced cells) whose catalytic core contains the conserved motifs of [FeFe]-hydrogenases and houses the H-cluster active site, comprising a [4Fe-4S] subcluster linked to a catalytically active 2Fe subcluster (with CO and CN ligands) that supports reversible proton reduction to molecular hydrogen (H2) and H2 oxidation. Comparative modeling indicates that HydA2 forms a monomeric enzyme with an H2-gas channel architecture similar to bacterial [FeFe]-hydrogenases, while differing by lacking the N-terminal accessory Fe-S centers found in some bacterial enzymes and by containing additional algal-specific sequence insertions. Functionally, genetic analyses show HydA2 can independently catalyze H2 production, contributing-alongside HydA1-to fermentative and photosynthetically driven H2 evolution during anoxia, thereby linking chloroplast redox metabolism to hydrogen turnover.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: HYDA2