[FeFe] Group C1-hydrogenase Putative

This entry was last updated at: Feb. 9, 2018, 6:15 a.m.

Properties
Group [FeFe]-hydrogenases
Subgroup [FeFe] Group C1: Histidine kinase-linked
Function Unconfirmed role. May serve as H2-sensors in regulatory cascades. Enzyme predicted to transfer H2-liberated electrons to PAS domain. Associated redox change may modulate activity of associated histidine kinase and in turn transcription if other hydrogenases.
Activity H2-sensing?
Oxygen tolerance O2-labile
Localisation Cytosolic
Distribution
Ecosystem distribution Gastrointestinal tracts, anoxic soils and sediments
Taxonomic distribution Encoded in anaerobic bacteria, including Firmicutes and Bacteroidetes
Genetic Organisation

e.g. Acetobacterium woodii (WP_014357055.1):

Architecture
Structures
    None
Subunits 2
Subunit description HydS (catalytic subunit with PAS domain)
HydK (histidine kinase)
Catalytic site [FeFe]-centre
FeS clusters 2 [4Fe4S] clusters
Sequences in this class
NCBI AccessionOrganismHydrogenase ClassPhylumOrderActivity (Predicted)Oxygen Tolerance (Predicted)Subunits (Predicted)Metal Centres (Predicted)Accessory Subunits (Predicted)
WP_012446583.1Natranaerobius thermophilus[FeFe] Group C1FirmicutesNatranaerobialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_012064286.1Alkaliphilus metalliredigens[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_010665314.1Marinilabilia salmonicolor[FeFe] Group C1BacteroidetesBacteroidalesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_010251919.1Acetivibrio cellulolyticus[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_009609830.1Caldanaerobacter subterraneus[FeFe] Group C1FirmicutesThermoanaerobacteralesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_009145644.1Phascolarctobacterium succinatutens[FeFe] Group C1FirmicutesSelenomonadalesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_008909343.1Caloramator australicus[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_008157723.1Parabacteroides johnsonii[FeFe] Group C1BacteroidetesBacteroidalesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_007862856.1Lachnoclostridium citroniae[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_007656801.1Parabacteroides goldsteinii[FeFe] Group C1BacteroidetesBacteroidalesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_007288806.1Thermosinus carboxydivorans[FeFe] Group C1FirmicutesSelenomonadalesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_006778972.1Lachnoclostridium hathewayi[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_006573282.1Pseudoflavonifractor capillosus[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_006570151.1Thermoanaerobacter siderophilus[FeFe] Group C1FirmicutesThermoanaerobacteralesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_006521135.1Desulfotomaculum gibsoniae[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_005643245.1Parabacteroides merdae[FeFe] Group C1BacteroidetesBacteroidalesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_004626210.1Ruminiclostridium termitidis[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_004608279.1Lachnoclostridium scindens[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_004401673.1Thermoanaerobacter thermohydrosulfuricus[FeFe] Group C1FirmicutesThermoanaerobacteralesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_003871510.1Thermoanaerobacter ethanolicus[FeFe] Group C1FirmicutesThermoanaerobacteralesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_003534146.1Ruminiclostridium leptum[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_003512576.1Ruminiclostridium thermocellum[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase
WP_002572006.1Lachnoclostridium bolteae[FeFe] Group C1FirmicutesClostridialesSensoryLabile2[FeFe]-centre, 2 x [4Fe4S] clusters, PAS domainHistidine kinase

Literature

Genetics: