ID   FDHD_HAEI8              Reviewed;         270 AA.
AC   Q4QPN9;
DT   13-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   19-JUL-2005, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Sulfur carrier protein FdhD {ECO:0000255|HAMAP-Rule:MF_00187};
GN   Name=fdhD {ECO:0000255|HAMAP-Rule:MF_00187}; OrderedLocusNames=NTHI0006;
OS   Haemophilus influenzae (strain 86-028NP).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=281310;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=86-028NP;
RX   PubMed=15968074; DOI=10.1128/jb.187.13.4627-4636.2005;
RA   Harrison A., Dyer D.W., Gillaspy A., Ray W.C., Mungur R., Carson M.B.,
RA   Zhong H., Gipson J., Gipson M., Johnson L.S., Lewis L., Bakaletz L.O.,
RA   Munson R.S. Jr.;
RT   "Genomic sequence of an otitis media isolate of nontypeable Haemophilus
RT   influenzae: comparative study with H. influenzae serotype d, strain KW20.";
RL   J. Bacteriol. 187:4627-4636(2005).
CC   -!- FUNCTION: Required for formate dehydrogenase (FDH) activity. Acts as a
CC       sulfur carrier protein that transfers sulfur from IscS to the
CC       molybdenum cofactor prior to its insertion into FDH.
CC       {ECO:0000255|HAMAP-Rule:MF_00187}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00187}.
CC   -!- SIMILARITY: Belongs to the FdhD family. {ECO:0000255|HAMAP-
CC       Rule:MF_00187}.
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DR   EMBL; CP000057; AAX87008.1; -; Genomic_DNA.
DR   RefSeq; WP_011271776.1; NC_007146.2.
DR   AlphaFoldDB; Q4QPN9; -.
DR   SMR; Q4QPN9; -.
DR   EnsemblBacteria; AAX87008; AAX87008; NTHI0006.
DR   KEGG; hit:NTHI0006; -.
DR   HOGENOM; CLU_056887_2_0_6; -.
DR   OMA; RYCAGAT; -.
DR   OrthoDB; 948173at2; -.
DR   Proteomes; UP000002525; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0097163; F:sulfur carrier activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016783; F:sulfurtransferase activity; IEA:InterPro.
DR   GO; GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00187; FdhD; 1.
DR   InterPro; IPR016193; Cytidine_deaminase-like.
DR   InterPro; IPR003786; FdhD.
DR   PANTHER; PTHR30592; PTHR30592; 1.
DR   Pfam; PF02634; FdhD-NarQ; 1.
DR   PIRSF; PIRSF015626; FdhD; 1.
DR   SUPFAM; SSF53927; SSF53927; 1.
DR   TIGRFAMs; TIGR00129; fdhD_narQ; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Molybdenum cofactor biosynthesis.
FT   CHAIN           1..270
FT                   /note="Sulfur carrier protein FdhD"
FT                   /id="PRO_0000152905"
FT   ACT_SITE        116
FT                   /note="Cysteine persulfide intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00187"
FT   BINDING         253..258
FT                   /ligand="Mo-bis(molybdopterin guanine dinucleotide)"
FT                   /ligand_id="ChEBI:CHEBI:60539"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00187"
SQ   SEQUENCE   270 AA;  30105 MW;  026CA5A03879ADFE CRC64;
     MQCWIRQTIN FFRKTKNTEK LTALLQQKED ILAVEMPVSL VYNGISHAVM MCSPNNLEDF
     ALGFSITEGI IDKPEDIYGI DVVEVCNGIE VQIELSSRKF MALKEHRRNL TGRTGCGICG
     TEQLNQVYKT FPKLDCTFQF DLNLLDSCLI DLQKNQLLGC KTGATHACAF FDLYGNMLAI
     YEDVGRHVAL DKLLGWHAKS GKPRGFILAS SRASYEMVQK TVACGVEMLV TISAATDLAV
     TMAEKHNLTL IGFAREGKGN IYSGHQRLHN