MBHT_ECOL6
ID MBHT_ECOL6 Reviewed; 372 AA.
AC P69742; Q46847;
DT 26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT 26-APR-2005, sequence version 1.
DT 03-AUG-2022, entry version 100.
DE RecName: Full=Hydrogenase-2 small chain;
DE Short=HYD2;
DE EC=1.12.99.6;
DE AltName: Full=Membrane-bound hydrogenase 2 small subunit;
DE AltName: Full=NiFe hydrogenase;
DE Flags: Precursor;
GN Name=hybO; OrderedLocusNames=c3734;
OS Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=199310;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CFT073 / ATCC 700928 / UPEC;
RX PubMed=12471157; DOI=10.1073/pnas.252529799;
RA Welch R.A., Burland V., Plunkett G. III, Redford P., Roesch P., Rasko D.,
RA Buckles E.L., Liou S.-R., Boutin A., Hackett J., Stroud D., Mayhew G.F.,
RA Rose D.J., Zhou S., Schwartz D.C., Perna N.T., Mobley H.L.T.,
RA Donnenberg M.S., Blattner F.R.;
RT "Extensive mosaic structure revealed by the complete genome sequence of
RT uropathogenic Escherichia coli.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:17020-17024(2002).
CC -!- FUNCTION: This is one of three E.coli hydrogenases synthesized in
CC response to different physiological conditions. HYD2 is involved in
CC hydrogen uptake.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=A + H2 = AH2; Xref=Rhea:RHEA:12116, ChEBI:CHEBI:13193,
CC ChEBI:CHEBI:17499, ChEBI:CHEBI:18276; EC=1.12.99.6;
CC -!- COFACTOR:
CC Name=[3Fe-4S] cluster; Xref=ChEBI:CHEBI:21137; Evidence={ECO:0000250};
CC Note=Binds 1 [3Fe-4S] cluster. {ECO:0000250};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883; Evidence={ECO:0000250};
CC Note=Binds 2 [4Fe-4S] clusters. {ECO:0000250};
CC -!- SUBUNIT: Heterodimer of a large and a small subunit.
CC -!- SUBCELLULAR LOCATION: Cell membrane; Peripheral membrane protein;
CC Periplasmic side. Periplasm.
CC -!- PTM: Predicted to be exported by the Tat system. The position of the
CC signal peptide cleavage has not been experimentally proven.
CC -!- SIMILARITY: Belongs to the [NiFe]/[NiFeSe] hydrogenase small subunit
CC family. {ECO:0000305}.
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DR EMBL; AE014075; AAN82178.1; -; Genomic_DNA.
DR RefSeq; WP_000145410.1; NC_004431.1.
DR AlphaFoldDB; P69742; -.
DR SMR; P69742; -.
DR STRING; 199310.c3734; -.
DR EnsemblBacteria; AAN82178; AAN82178; c3734.
DR GeneID; 66673105; -.
DR KEGG; ecc:c3734; -.
DR eggNOG; COG1740; Bacteria.
DR HOGENOM; CLU_046107_0_1_6; -.
DR OMA; VPGCPIQ; -.
DR BioCyc; ECOL199310:C3734-MON; -.
DR Proteomes; UP000001410; Chromosome.
DR GO; GO:0009375; C:ferredoxin hydrogenase complex; IEA:InterPro.
DR GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
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:0008901; F:ferredoxin hydrogenase activity; IEA:InterPro.
DR GO; GO:0033748; F:hydrogenase (acceptor) activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR Gene3D; 3.40.50.700; -; 1.
DR Gene3D; 4.10.480.10; -; 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 PANTHER; PTHR30013; PTHR30013; 1.
DR Pfam; PF14720; NiFe_hyd_SSU_C; 1.
DR Pfam; PF01058; Oxidored_q6; 1.
DR PIRSF; PIRSF000310; NiFe_hyd_ssu; 1.
DR TIGRFAMs; TIGR00391; hydA; 1.
DR TIGRFAMs; TIGR01409; TAT_signal_seq; 1.
DR PROSITE; PS51318; TAT; 1.
PE 3: Inferred from homology;
KW 3Fe-4S; 4Fe-4S; Cell membrane; Iron; Iron-sulfur; Membrane; Metal-binding;
KW Oxidoreductase; Periplasm; Signal.
FT SIGNAL 1..37
FT /note="Tat-type signal"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00648"
FT CHAIN 38..372
FT /note="Hydrogenase-2 small chain"
FT /id="PRO_0000013431"
FT BINDING 59
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 62
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 157
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 191
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 229
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 232
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 257
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 263
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 272
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000250"
FT BINDING 292
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000250"
FT BINDING 295
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000250"
SQ SEQUENCE 372 AA; 39652 MW; C5821096BBAF9C66 CRC64;
MTGDNTLIHS HGINRRDFMK LCAALAATMG LSSKAAAEMA ESVTNPQRPP VIWIGAQECT
GCTESLLRAT HPTVENLVLE TISLEYHEVL SAAFGHQVEE NKHNALEKYK GQYVLVVDGS
IPLKDNGIYC MVAGEPIVDH IRKAAEGAAA IIAIGSCSAW GGVAAAGVNP TGAVSLQEVL
PGKTVINIPG CPPNPHNFLA TVAHIITYGK PPKLDDKNRP TFAYGRLIHE HCERRPHFDA
GRFAKEFGDE GHREGWCLYH LGCKGPETYG NCSTLQFCDV GGVWPVAIGH PCYGCNEEGI
GFHKGIHQLA NVENQTPRSQ KPDVNAKEGG NVSAGAIGLL GGVVGLVAGV SVMAVRELGR
QQKKDNADSR GE
