Hydrogenases in Cyanobacteria

摘要: Cyanobacteria can express at least two different hydrogenases catalyzing the consumption of molecular H2 [1,2]. A so called uptake hydrogenase is component thylakoid membrane [3]. It particularly active in heterocysts filamentous forms [4], but also occurs unicellular Anacystis nidulans(SynechococcusPCC 6301) [5-7]. Electron acceptor for H2-utilization catalyzed by either cytochrome bor plastoquinone. The electrons are then allocated via bccomplex to photosystem I or respiratory terminal oxidase [1,7]. thylak-oid membranes activated thioredoxin system [2]. enzyme encoded hupLSgenes. In AnabaenaPCC 7120 [8], not NostocPCC 73102 [9], hupLis subject gene rearrangement parallel with differentiation. hupLSgenes have been detected cyanobacteria and present on completely sequenced chromosome SynechocystisPCC 6803 [10].