ID A8APN4_CITK8 Unreviewed; 372 AA.
AC A8APN4;
DT 23-OCT-2007, integrated into UniProtKB/TrEMBL.
DT 23-OCT-2007, sequence version 1.
DT 27-MAR-2024, entry version 91.
DE RecName: Full=hydrogenase (acceptor) {ECO:0000256|ARBA:ARBA00012082};
DE EC=1.12.99.6 {ECO:0000256|ARBA:ARBA00012082};
DE AltName: Full=NiFe hydrogenase {ECO:0000256|ARBA:ARBA00031163};
GN OrderedLocusNames=CKO_04391 {ECO:0000313|EMBL:ABV15447.1};
OS Citrobacter koseri (strain ATCC BAA-895 / CDC 4225-83 / SGSC4696).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Citrobacter.
OX NCBI_TaxID=290338 {ECO:0000313|EMBL:ABV15447.1, ECO:0000313|Proteomes:UP000008148};
RN [1] {ECO:0000313|EMBL:ABV15447.1, ECO:0000313|Proteomes:UP000008148}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-895 / CDC 4225-83 / SGSC4696
RC {ECO:0000313|Proteomes:UP000008148};
RG The Citrobacter koseri Genome Sequencing Project;
RA McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA Latreille P., Courtney L., Wang C., Pepin K., Bhonagiri V., Nash W.,
RA Johnson M., Thiruvilangam P., Wilson R.;
RL Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases.
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 Evidence={ECO:0000256|ARBA:ARBA00000386};
CC -!- COFACTOR:
CC Name=[3Fe-4S] cluster; Xref=ChEBI:CHEBI:21137;
CC Evidence={ECO:0000256|ARBA:ARBA00001927};
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; CP000822; ABV15447.1; -; Genomic_DNA.
DR RefSeq; WP_012135130.1; NC_009792.1.
DR AlphaFoldDB; A8APN4; -.
DR STRING; 290338.CKO_04391; -.
DR GeneID; 45137969; -.
DR KEGG; cko:CKO_04391; -.
DR HOGENOM; CLU_046107_0_1_6; -.
DR OrthoDB; 9766729at2; -.
DR Proteomes; UP000008148; Chromosome.
DR GO; GO:0009375; C:ferredoxin hydrogenase complex; IEA:InterPro.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
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; 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:SF7; HYDROGENASE-2 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|ARBA:ARBA00023291, 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}; Membrane {ECO:0000256|SAM:Phobius};
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:UP000008148};
KW Signal {ECO:0000256|ARBA:ARBA00022729};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 332..355
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 59..204
FT /note="NADH:ubiquinone oxidoreductase-like 20kDa subunit"
FT /evidence="ECO:0000259|Pfam:PF01058"
FT DOMAIN 224..301
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 292
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
FT BINDING 295
FT /ligand="[3Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:21137"
FT /evidence="ECO:0000256|PIRSR:PIRSR000310-1"
SQ SEQUENCE 372 AA; 39617 MW; BF84BF20D0A9D8B7 CRC64;
MTGDNTLITS HGVNRRDFMK LCAALAATMG LSSKAAAEMA ESVSRPQRPP VVWIGAQECT
GCTESLLRAT HPTVENLVLE TISLEYHEVL SAAFGHQVEE NKHNALEKYK GQYVLVVDGS
IPLKDNGIYC MVAGEPIVDH IRKAAEGAAA IIAIGSCSAW GGVAAAGVNP TGAVGLQEVL
PGKTVINIPG CPPNPHNFLA TVAHIITYGK PPKLDAKNRP TFAYGRLIHE HCERRPHFDA
GRFAKEFGDE GHREGWCLYH LGCKGPETYG NCSTLQFCDV GGVWPVAIGH PCYGCNEEGV
GFHKGIHQLA HVENQTPRSE KPDVNLKEGG HISAGAVGLL GGVVGLVAGV SVMAVRELGR
QQKKDNADSR GE
//
