ID Q8EU13_OCEIH Unreviewed; 273 AA.
AC Q8EU13;
DT 01-MAR-2003, integrated into UniProtKB/TrEMBL.
DT 01-MAR-2003, sequence version 1.
DT 24-JAN-2024, entry version 117.
DE RecName: Full=Dihydropteroate synthase {ECO:0000256|ARBA:ARBA00016919, ECO:0000256|RuleBase:RU361205};
DE Short=DHPS {ECO:0000256|RuleBase:RU361205};
DE EC=2.5.1.15 {ECO:0000256|ARBA:ARBA00012458, ECO:0000256|RuleBase:RU361205};
DE AltName: Full=Dihydropteroate pyrophosphorylase {ECO:0000256|ARBA:ARBA00030193, ECO:0000256|RuleBase:RU361205};
GN OrderedLocusNames=OB0085 {ECO:0000313|EMBL:BAC12041.1};
OS Oceanobacillus iheyensis (strain DSM 14371 / CIP 107618 / JCM 11309 / KCTC
OS 3954 / HTE831).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Oceanobacillus.
OX NCBI_TaxID=221109 {ECO:0000313|EMBL:BAC12041.1, ECO:0000313|Proteomes:UP000000822};
RN [1] {ECO:0000313|EMBL:BAC12041.1, ECO:0000313|Proteomes:UP000000822}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 14371 / CIP 107618 / JCM 11309 / KCTC 3954 / HTE831
RC {ECO:0000313|Proteomes:UP000000822};
RX PubMed=12235376; DOI=10.1093/nar/gkf526;
RA Takami H., Takaki Y., Uchiyama I.;
RT "Genome sequence of Oceanobacillus iheyensis isolated from the Iheya Ridge
RT and its unexpected adaptive capabilities to extreme environments.";
RL Nucleic Acids Res. 30:3927-3935(2002).
CC -!- FUNCTION: Catalyzes the condensation of para-aminobenzoate (pABA) with
CC 6-hydroxymethyl-7,8-dihydropterin diphosphate (DHPt-PP) to form 7,8-
CC dihydropteroate (H2Pte), the immediate precursor of folate derivatives.
CC {ECO:0000256|RuleBase:RU361205}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(7,8-dihydropterin-6-yl)methyl diphosphate + 4-aminobenzoate =
CC 7,8-dihydropteroate + diphosphate; Xref=Rhea:RHEA:19949,
CC ChEBI:CHEBI:17836, ChEBI:CHEBI:17839, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:72950; EC=2.5.1.15;
CC Evidence={ECO:0000256|ARBA:ARBA00000012};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946,
CC ECO:0000256|RuleBase:RU361205};
CC -!- PATHWAY: Cofactor biosynthesis; tetrahydrofolate biosynthesis; 7,8-
CC dihydrofolate from 2-amino-4-hydroxy-6-hydroxymethyl-7,8-
CC dihydropteridine diphosphate and 4-aminobenzoate: step 1/2.
CC {ECO:0000256|ARBA:ARBA00004763, ECO:0000256|RuleBase:RU361205}.
CC -!- SIMILARITY: Belongs to the DHPS family. {ECO:0000256|ARBA:ARBA00009503,
CC ECO:0000256|RuleBase:RU361205}.
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DR EMBL; BA000028; BAC12041.1; -; Genomic_DNA.
DR AlphaFoldDB; Q8EU13; -.
DR STRING; 221109.gene:10732248; -.
DR KEGG; oih:OB0085; -.
DR eggNOG; COG0294; Bacteria.
DR HOGENOM; CLU_008023_0_2_9; -.
DR OMA; HMQGEPR; -.
DR PhylomeDB; Q8EU13; -.
DR UniPathway; UPA00077; UER00156.
DR Proteomes; UP000000822; Chromosome.
DR GO; GO:0004156; F:dihydropteroate synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0046656; P:folic acid biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0046654; P:tetrahydrofolate biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd00739; DHPS; 1.
DR Gene3D; 3.20.20.20; Dihydropteroate synthase-like; 1.
DR InterPro; IPR045031; DHP_synth.
DR InterPro; IPR006390; DHP_synth_dom.
DR InterPro; IPR011005; Dihydropteroate_synth-like.
DR InterPro; IPR000489; Pterin-binding_dom.
DR NCBIfam; TIGR01496; DHPS; 1.
DR PANTHER; PTHR20941; FOLATE SYNTHESIS PROTEINS; 1.
DR PANTHER; PTHR20941:SF1; FOLIC ACID SYNTHESIS PROTEIN FOL1; 1.
DR Pfam; PF00809; Pterin_bind; 1.
DR SUPFAM; SSF51717; Dihydropteroate synthetase-like; 1.
DR PROSITE; PS00792; DHPS_1; 1.
DR PROSITE; PS00793; DHPS_2; 1.
DR PROSITE; PS50972; PTERIN_BINDING; 1.
PE 3: Inferred from homology;
KW Folate biosynthesis {ECO:0000256|ARBA:ARBA00022909,
KW ECO:0000256|RuleBase:RU361205};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|RuleBase:RU361205};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU361205};
KW Reference proteome {ECO:0000313|Proteomes:UP000000822};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU361205}.
FT DOMAIN 16..262
FT /note="Pterin-binding"
FT /evidence="ECO:0000259|PROSITE:PS50972"
SQ SEQUENCE 273 AA; 29997 MW; 19E8A238C1AF7D65 CRC64;
MNIRTKKRTL NVSKRTHIMG ILNVTPDSFS DGGNYSTVNK AVDQALQLEK QGADMIDIGG
ESTRPGYTPI SAEEELNRII PVIRILKDKL SIPISVDTFK AETARKVLEA GADMINDIWG
AKKDPDMAKV VAEYNVPIIL MHNRKEEDYS DFMEDVKSDL LESIQIAKDA GISEDNIIID
PGVGFAKSME QNMEVVRELH QLVNLGYPVL LATSRKRFIG HVLDVPAADR DVGTAATTVI
GVQQGAHIVR VHNVHINAEA AKVADAIYGK RSL
//