ID   FDHD_ALKHC              Reviewed;         270 AA.
AC   Q9K9W8;
DT   23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 113.
DE   RecName: Full=Sulfur carrier protein FdhD {ECO:0000255|HAMAP-Rule:MF_00187};
GN   Name=fdhD {ECO:0000255|HAMAP-Rule:MF_00187}; Synonyms=narQ;
GN   OrderedLocusNames=BH2527;
OS   Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS   / JCM 9153 / C-125) (Bacillus halodurans).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=272558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX   PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA   Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA   Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT   "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT   and genomic sequence comparison with Bacillus subtilis.";
RL   Nucleic Acids Res. 28:4317-4331(2000).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; BA000004; BAB06246.1; -; Genomic_DNA.
DR   PIR; G83965; G83965.
DR   RefSeq; WP_010898678.1; NC_002570.2.
DR   AlphaFoldDB; Q9K9W8; -.
DR   SMR; Q9K9W8; -.
DR   STRING; 272558.10175147; -.
DR   EnsemblBacteria; BAB06246; BAB06246; BAB06246.
DR   KEGG; bha:BH2527; -.
DR   eggNOG; COG1526; Bacteria.
DR   HOGENOM; CLU_056887_4_1_9; -.
DR   OMA; RYCAGAT; -.
DR   OrthoDB; 948173at2; -.
DR   Proteomes; UP000001258; 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; Reference proteome.
FT   CHAIN           1..270
FT                   /note="Sulfur carrier protein FdhD"
FT                   /id="PRO_0000152887"
FT   ACT_SITE        108
FT                   /note="Cysteine persulfide intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00187"
FT   BINDING         247..252
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;  30392 MW;  9A7735E95A259108 CRC64;
     MTNPMQATRK IISITDQNVV HREDQVAREY PLTIYVNDRE FATMVCTQAD LEEMVIGFLG
     SEGLIRFYKQ DVASLSIDES RGFAYVSLTK ELPTEWQFYS KRMIGSCCGK SRQSFYFHND
     AKTAKTSMSR TTMTPEQCFR LMEALQEQSV IFQQTGGVHN AALATPEQML ISRTDIGRHN
     ALDKLYGYCL MNGVPVRDKV LLFSGRISSE VLLKAAKIGV GIMLSKSAPT ELALTMAEEL
     NITTAGFIRD GRMNIYTVPE RILTPKKEVQ