ID   MOAE_HAEIN              Reviewed;         150 AA.
AC   P45308;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 114.
DE   RecName: Full=Molybdopterin synthase catalytic subunit;
DE            EC=2.8.1.12;
DE   AltName: Full=MPT synthase subunit 2;
DE   AltName: Full=Molybdenum cofactor biosynthesis protein E;
DE   AltName: Full=Molybdopterin-converting factor large subunit;
DE   AltName: Full=Molybdopterin-converting factor subunit 2;
GN   Name=moaE; OrderedLocusNames=HI_1673;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
CC   -!- FUNCTION: Converts molybdopterin precursor Z into molybdopterin. This
CC       requires the incorporation of two sulfur atoms into precursor Z to
CC       generate a dithiolene group. The sulfur is provided by MoaD (By
CC       similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 [molybdopterin-synthase sulfur-carrier protein]-C-terminal
CC         Gly-NH-CH2-C(O)SH + cyclic pyranopterin phosphate + H2O = 2
CC         [molybdopterin-synthase sulfur-carrier protein]-C-terminal Gly-Gly +
CC         4 H(+) + molybdopterin; Xref=Rhea:RHEA:26333, Rhea:RHEA-COMP:12160,
CC         Rhea:RHEA-COMP:12202, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:58698, ChEBI:CHEBI:59648, ChEBI:CHEBI:90619,
CC         ChEBI:CHEBI:90778; EC=2.8.1.12;
CC   -!- PATHWAY: Cofactor biosynthesis; molybdopterin biosynthesis.
CC   -!- SUBUNIT: Heterotetramer of 2 MoaD subunits and 2 MoaE subunits. Also
CC       stable as homodimer. The enzyme changes between these two forms during
CC       catalysis (By similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the MoaE family. {ECO:0000305}.
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DR   EMBL; L42023; AAC23318.1; -; Genomic_DNA.
DR   PIR; H64135; H64135.
DR   RefSeq; NP_439815.1; NC_000907.1.
DR   RefSeq; WP_005694395.1; NC_000907.1.
DR   AlphaFoldDB; P45308; -.
DR   SMR; P45308; -.
DR   STRING; 71421.HI_1673; -.
DR   EnsemblBacteria; AAC23318; AAC23318; HI_1673.
DR   KEGG; hin:HI_1673; -.
DR   PATRIC; fig|71421.8.peg.1752; -.
DR   eggNOG; COG0314; Bacteria.
DR   HOGENOM; CLU_089568_2_1_6; -.
DR   OMA; WPLQRVS; -.
DR   PhylomeDB; P45308; -.
DR   BioCyc; HINF71421:G1GJ1-1688-MON; -.
DR   UniPathway; UPA00344; -.
DR   Proteomes; UP000000579; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0030366; F:molybdopterin synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process; IEA:UniProtKB-KW.
DR   CDD; cd00756; MoaE; 1.
DR   Gene3D; 3.90.1170.40; -; 1.
DR   InterPro; IPR036563; MoaE_sf.
DR   InterPro; IPR003448; Mopterin_biosynth_MoaE.
DR   Pfam; PF02391; MoaE; 1.
DR   SUPFAM; SSF54690; SSF54690; 1.
PE   3: Inferred from homology;
KW   Molybdenum cofactor biosynthesis; Reference proteome; Transferase.
FT   CHAIN           1..150
FT                   /note="Molybdopterin synthase catalytic subunit"
FT                   /id="PRO_0000163084"
FT   BINDING         37..39
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         103..104
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         119
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         126..128
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   150 AA;  17212 MW;  35149D46365F0185 CRC64;
     MTDIQIAVQE QPFDQNAVYQ WLSEQHSIGA TVIFVGKVRD LNLGDEVSSL YLEHYPAMTE
     KALNEIVAQA KVRWDIQRVS VIHRVGLLQT GDEIVLVGVS SAHRGDAYHA NEFIMDFLKS
     KAPFWKKEQT NQGERWIEAR ESDKEALEKW