ID   PHSS_DESNO              Reviewed;          32 AA.
AC   P13064;
DT   01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1990, sequence version 1.
DT   03-AUG-2022, entry version 90.
DE   RecName: Full=Periplasmic [NiFeSe] hydrogenase small subunit;
DE            EC=1.12.99.6;
DE   AltName: Full=NiFeSe hydrogenlyase small chain;
DE   Flags: Fragment;
OS   Desulfomicrobium norvegicum (strain DSM 1741 / NCIMB 8310) (Desulfovibrio
OS   baculatus (strain Norway 4)) (Desulfovibrio desulfuricans (strain Norway
OS   4)).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfomicrobiaceae; Desulfomicrobium.
OX   NCBI_TaxID=52561;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=3322275; DOI=10.1016/0006-291x(87)90376-7;
RA   Prickril B.C., He S.H., Li C., Menon N.K., Choi E.S., Przybyla A.E.,
RA   Dervartanian D.V., Peck H.D. Jr., Fauque G., le Gall J., Teixeira M.,
RA   Moura I., Moura J.J.G., Patil D., Huynh B.H.;
RT   "Identification of three classes of hydrogenase in the genus,
RT   Desulfovibrio.";
RL   Biochem. Biophys. Res. Commun. 149:369-377(1987).
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: Periplasm.
CC   -!- SIMILARITY: Belongs to the [NiFe]/[NiFeSe] hydrogenase small subunit
CC       family. {ECO:0000305}.
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DR   AlphaFoldDB; P13064; -.
DR   SMR; P13064; -.
DR   STRING; 52561.SAMN05421830_108114; -.
DR   GO; GO:0042597; C:periplasmic space; 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: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   InterPro; IPR037024; NiFe_Hase_small_N_sf.
PE   1: Evidence at protein level;
KW   3Fe-4S; 4Fe-4S; Direct protein sequencing; Iron; Iron-sulfur;
KW   Metal-binding; Oxidoreductase; Periplasm.
FT   CHAIN           1..>32
FT                   /note="Periplasmic [NiFeSe] hydrogenase small subunit"
FT                   /id="PRO_0000204355"
FT   BINDING         18
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         21
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   NON_TER         32
SQ   SEQUENCE   32 AA;  3305 MW;  7001FAAA174C8199 CRC64;
     MTQGAKKAPV IWVQGEGCTG CSVSLLNAVC PR