ID O66894_AQUAE Unreviewed; 353 AA.
AC O66894;
DT 01-AUG-1998, integrated into UniProtKB/TrEMBL.
DT 01-AUG-1998, sequence version 1.
DT 27-MAR-2024, entry version 130.
DE SubName: Full=Hydrogenase small subunit {ECO:0000313|EMBL:AAC06862.1};
GN Name=mbhS1 {ECO:0000313|EMBL:AAC06862.1};
GN OrderedLocusNames=aq_660 {ECO:0000313|EMBL:AAC06862.1};
OS Aquifex aeolicus (strain VF5).
OC Bacteria; Aquificota; Aquificae; Aquificales; Aquificaceae; Aquifex.
OX NCBI_TaxID=224324 {ECO:0000313|EMBL:AAC06862.1, ECO:0000313|Proteomes:UP000000798};
RN [1] {ECO:0000313|EMBL:AAC06862.1, ECO:0000313|Proteomes:UP000000798}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=VF5 {ECO:0000313|EMBL:AAC06862.1,
RC ECO:0000313|Proteomes:UP000000798};
RX PubMed=9537320; DOI=10.1038/32831;
RA Deckert G., Warren P.V., Gaasterland T., Young W.G., Lenox A.L.,
RA Graham D.E., Overbeek R., Snead M.A., Keller M., Aujay M., Huber R.,
RA Feldman R.A., Short J.M., Olson G.J., Swanson R.V.;
RT "The complete genome of the hyperthermophilic bacterium Aquifex aeolicus.";
RL Nature 392:353-358(1998).
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|ARBA:ARBA00001966};
CC -!- SUBUNIT: Heterodimer of a large and a small subunit.
CC {ECO:0000256|ARBA:ARBA00011771}.
CC -!- SIMILARITY: Belongs to the [NiFe]/[NiFeSe] hydrogenase small subunit
CC family. {ECO:0000256|ARBA:ARBA00006605}.
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DR EMBL; AE000657; AAC06862.1; -; Genomic_DNA.
DR PIR; B70358; B70358.
DR RefSeq; NP_213454.1; NC_000918.1.
DR RefSeq; WP_010880392.1; NC_000918.1.
DR AlphaFoldDB; O66894; -.
DR STRING; 224324.aq_660; -.
DR EnsemblBacteria; AAC06862; AAC06862; aq_660.
DR KEGG; aae:aq_660; -.
DR PATRIC; fig|224324.8.peg.536; -.
DR eggNOG; COG1740; Bacteria.
DR HOGENOM; CLU_046107_0_0_0; -.
DR InParanoid; O66894; -.
DR OrthoDB; 9766729at2; -.
DR Proteomes; UP000000798; Chromosome.
DR GO; GO:0044569; C:[Ni-Fe] hydrogenase complex; IBA:GO_Central.
DR GO; GO:0009375; C:ferredoxin hydrogenase complex; IEA:InterPro.
DR GO; GO:0016020; C:membrane; IBA:GO_Central.
DR GO; GO:0051538; F:3 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0009055; F:electron transfer activity; IBA:GO_Central.
DR GO; GO:0008901; F:ferredoxin hydrogenase activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0009061; P:anaerobic respiration; IBA:GO_Central.
DR Gene3D; 4.10.480.10; Cytochrome-c3 hydrogenase, C-terminal domain; 1.
DR Gene3D; 3.40.50.700; NADH:ubiquinone oxidoreductase-like, 20kDa subunit; 1.
DR InterPro; IPR027394; Cytochrome-c3_hydrogenase_C.
DR InterPro; IPR006137; NADH_UbQ_OxRdtase-like_20kDa.
DR InterPro; IPR037148; NiFe-Hase_small_C_sf.
DR InterPro; IPR037024; NiFe_Hase_small_N_sf.
DR InterPro; IPR001821; NiFe_hydrogenase_ssu.
DR InterPro; IPR006311; TAT_signal.
DR InterPro; IPR019546; TAT_signal_bac_arc.
DR NCBIfam; TIGR00391; hydA; 1.
DR NCBIfam; TIGR01409; TAT_signal_seq; 1.
DR PANTHER; PTHR30013:SF6; HYDROGENASE-1 SMALL CHAIN; 1.
DR PANTHER; PTHR30013; NIFE / NIFESE HYDROGENASE SMALL SUBUNIT FAMILY MEMBER; 1.
DR Pfam; PF14720; NiFe_hyd_SSU_C; 1.
DR Pfam; PF01058; Oxidored_q6; 1.
DR PIRSF; PIRSF000310; NiFe_hyd_ssu; 1.
DR PRINTS; PR00614; NIHGNASESMLL.
DR SUPFAM; SSF56770; HydA/Nqo6-like; 1.
DR PROSITE; PS51318; TAT; 1.
PE 3: Inferred from homology;
KW 3Fe-4S {ECO:0000256|PIRSR:PIRSR000310-1};
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|PIRSR:PIRSR000310-1};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PIRSR:PIRSR000310-1};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|PIRSR:PIRSR000310-
KW 1};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRSR:PIRSR000310-1};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW Reference proteome {ECO:0000313|Proteomes:UP000000798};
KW Signal {ECO:0000256|ARBA:ARBA00022729}.
FT DOMAIN 59..204
FT /note="NADH:ubiquinone oxidoreductase-like 20kDa subunit"
FT /evidence="ECO:0000259|Pfam:PF01058"
FT DOMAIN 224..305
FT /note="Cytochrome-c3 hydrogenase C-terminal"
FT /evidence="ECO:0000259|Pfam:PF14720"
FT BINDING 59
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 62
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 157
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 191
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 229
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 232
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 257
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 263
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 272
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 291
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 294
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
SQ SEQUENCE 353 AA; 38619 MW; 1434BE1F393F9F7B CRC64;
METFWEVFKR HGVSRRDFLK FATTITGLMG LAPSMVPEVV RAMETKPRVP VLWIHGLECT
CCSESFIRSA TPLASDVVLS MISLEYDDTL SAAAGEAVEK HRERIIKEYW GNYILAVEGN
PPLGEDGMYC IIGGRPFVEI LKESAEGAKA VIAWGSCASW GCVQAAKPNP TTAVPIDKVI
KDKPIIKVPG CPPIAEVMTG VIMYMVLFDR IPPLDSQGRP KMFYGNRIHD TCYRRSFFNA
GQFVEQFDDE GAKKGWCLYK VGCRGPTTYN SCGNMRWYNG LSYPIQSGHG CIGCAENNFW
DNGPFYERIG GIPVPGIESK ADKVGAIAAA AAAGGAIIHG IASKIRKSGE KEE
//
