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Literature summary extracted from

  • Ghirardi, M.L.; Posewitz, M.C.; Maness, P.; Dubini, A.; Yu, J.; Seibert, M.
    Hydrogenases and hydrogen photoproduction in oxygenic photosynthetic organisms (2007), Annu. Rev. Plant Biol., 58, 71-91.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.12.7.2 HydEF protein required for [FeFe]-hydrogenase activity Chlamydomonas reinhardtii
1.12.7.2 HydG protein required for [FeFe]-hydrogenase activity Chlamydomonas reinhardtii

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.12.7.2 CO exhibits reversible sensitivity to CO inhibition Chlamydomonas reinhardtii
1.12.7.2 O2 exhibits irreversible sensitivity to O2 Chlamydomonas reinhardtii
1.12.99.6 CO reversible inhibition Anabaena sp.
1.12.99.6 CO reversible inhibition Crocosphaera watsonii
1.12.99.6 CO reversible inhibition Cronbergia siamensis SAG 11.82
1.12.99.6 CO reversible inhibition Gloeothece sp.
1.12.99.6 CO reversible inhibition Lyngbya aestuarii
1.12.99.6 CO reversible inhibition Nostoc sp.
1.12.99.6 CO reversible inhibition Trichodesmium erythraeum
1.12.99.6 O2 reversible inhibition Anabaena sp.
1.12.99.6 O2 reversible inhibition Crocosphaera watsonii
1.12.99.6 O2 reversible inhibition Cronbergia siamensis SAG 11.82
1.12.99.6 O2 reversible inhibition Gloeothece sp.
1.12.99.6 O2 reversible inhibition Lyngbya aestuarii
1.12.99.6 O2 reversible inhibition Nostoc sp.
1.12.99.6 O2 reversible inhibition Trichodesmium erythraeum

Organism

EC Number Organism UniProt Comment Textmining
1.12.7.2 Chlamydomonas reinhardtii Q9FYU1
-
-
1.12.99.6 Anabaena sp.
-
 strain PCC 7120, also named Nostoc sp. strain PCC 7120
-
1.12.99.6 Crocosphaera watsonii
-
-
-
1.12.99.6 Crocosphaera watsonii WH8501
-
-
-
1.12.99.6 Cronbergia siamensis SAG 11.82 Q84GM3 and Q4G6A7 large subunit of HupL and small subunit of HupL
-
1.12.99.6 Cronbergia siamensis SAG 11.82 TISTR 8012 Q84GM3 and Q4G6A7 large subunit of HupL and small subunit of HupL
-
1.12.99.6 Gloeothece sp. Q841J7 and Q84IJ8 large subunit of HupL and small subunit of HupL; strain PCC 6909
-
1.12.99.6 Lyngbya aestuarii Q2EJS7 uptake hydrogenase large subunit HupL
-
1.12.99.6 Nostoc sp. Q3C1T8 and Q3C1T9 large subunit of HupL and small subunit of HupL; strain PCC 7422
-
1.12.99.6 Trichodesmium erythraeum
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.12.99.6 H2 + acceptor
-
 Anabaena sp. H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Trichodesmium erythraeum H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Crocosphaera watsonii H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Lyngbya aestuarii H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Nostoc sp. H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Gloeothece sp. H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Cronbergia siamensis SAG 11.82 H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Crocosphaera watsonii WH8501 H+ + reduced acceptor
-
 r
1.12.99.6 H2 + acceptor
-
 Cronbergia siamensis SAG 11.82 TISTR 8012 H+ + reduced acceptor
-
 r

Synonyms

EC Number Synonyms Comment Organism
1.12.7.2 HydA1
-
 Chlamydomonas reinhardtii
1.12.7.2 [FeFe] hydrogenase
-
 Chlamydomonas reinhardtii
1.12.99.6 HupL
-
 Anabaena sp.
1.12.99.6 HupL
-
 Trichodesmium erythraeum
1.12.99.6 HupL
-
 Crocosphaera watsonii
1.12.99.6 HupL
-
 Lyngbya aestuarii
1.12.99.6 HupL large subunit of uptake hydrogenase Nostoc sp.
1.12.99.6 HupL large subunit of uptake hydrogenase Gloeothece sp.
1.12.99.6 HupL large subunit of uptake hydrogenase Cronbergia siamensis SAG 11.82
1.12.99.6 HupS small subunit of uptake hydrogenase Nostoc sp.
1.12.99.6 HupS small subunit of uptake hydrogenase Gloeothece sp.
1.12.99.6 HupS small subunit of uptake hydrogenase Cronbergia siamensis SAG 11.82
1.12.99.6 uptake hydrogenase
-
 Anabaena sp.
1.12.99.6 uptake hydrogenase
-
 Trichodesmium erythraeum
1.12.99.6 uptake hydrogenase
-
 Crocosphaera watsonii
1.12.99.6 uptake hydrogenase
-
 Lyngbya aestuarii
1.12.99.6 uptake hydrogenase
-
 Nostoc sp.
1.12.99.6 uptake hydrogenase
-
 Gloeothece sp.
1.12.99.6 uptake hydrogenase
-
 Cronbergia siamensis SAG 11.82

Cofactor

EC Number Cofactor Comment Organism Structure
1.12.99.6 4Fe-4S-center contains two [4Fe-4S] clusters Anabaena sp.
1.12.99.6 4Fe-4S-center contains two [4Fe-4S] clusters Trichodesmium erythraeum
1.12.99.6 4Fe-4S-center contains two [4Fe-4S] clusters Crocosphaera watsonii
1.12.99.6 4Fe-4S-center contains two [4Fe-4S] clusters Lyngbya aestuarii
1.12.99.6 4Fe-4S-center contains two [4Fe-4S] clusters Nostoc sp.
1.12.99.6 4Fe-4S-center contains two [4Fe-4S] clusters Gloeothece sp.
1.12.99.6 4Fe-4S-center contains two [4Fe-4S] clusters Cronbergia siamensis SAG 11.82