DHPS_SYNY3
ID DHPS_SYNY3 Reviewed; 289 AA.
AC P73248;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1997, sequence version 1.
DT 03-AUG-2022, entry version 132.
DE RecName: Full=Dihydropteroate synthase;
DE Short=DHPS;
DE EC=2.5.1.15;
DE AltName: Full=Dihydropteroate pyrophosphorylase;
GN Name=folP; OrderedLocusNames=slr2026;
OS Synechocystis sp. (strain PCC 6803 / Kazusa).
OC Bacteria; Cyanobacteria; Synechococcales; Merismopediaceae; Synechocystis;
OC unclassified Synechocystis.
OX NCBI_TaxID=1111708;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 6803 / Kazusa;
RX PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT "Sequence analysis of the genome of the unicellular cyanobacterium
RT Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT genome and assignment of potential protein-coding regions.";
RL DNA Res. 3:109-136(1996).
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:0000250|UniProtKB:P0AC13}.
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:0000250|UniProtKB:P0AC13};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000250|UniProtKB:P0AC13};
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 -!- SIMILARITY: Belongs to the DHPS family. {ECO:0000305}.
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DR EMBL; BA000022; BAA17275.1; -; Genomic_DNA.
DR PIR; S75361; S75361.
DR AlphaFoldDB; P73248; -.
DR SMR; P73248; -.
DR IntAct; P73248; 2.
DR STRING; 1148.1652352; -.
DR PaxDb; P73248; -.
DR EnsemblBacteria; BAA17275; BAA17275; BAA17275.
DR KEGG; syn:slr2026; -.
DR eggNOG; COG0294; Bacteria.
DR InParanoid; P73248; -.
DR OMA; FSIDTYH; -.
DR PhylomeDB; P73248; -.
DR UniPathway; UPA00077; UER00156.
DR Proteomes; UP000001425; Chromosome.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0004156; F:dihydropteroate synthase activity; IBA:GO_Central.
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; IBA:GO_Central.
DR CDD; cd00739; DHPS; 1.
DR Gene3D; 3.20.20.20; -; 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 PANTHER; PTHR20941; PTHR20941; 1.
DR Pfam; PF00809; Pterin_bind; 1.
DR SUPFAM; SSF51717; SSF51717; 1.
DR TIGRFAMs; TIGR01496; DHPS; 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; Magnesium; Metal-binding; Reference proteome;
KW Transferase.
FT CHAIN 1..289
FT /note="Dihydropteroate synthase"
FT /id="PRO_0000168237"
FT DOMAIN 28..282
FT /note="Pterin-binding"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00334"
FT BINDING 35
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:P9WND1"
FT BINDING 75
FT /ligand="(7,8-dihydropterin-6-yl)methyl diphosphate"
FT /ligand_id="ChEBI:CHEBI:72950"
FT /evidence="ECO:0000250|UniProtKB:P0AC13"
FT BINDING 109
FT /ligand="(7,8-dihydropterin-6-yl)methyl diphosphate"
FT /ligand_id="ChEBI:CHEBI:72950"
FT /evidence="ECO:0000250|UniProtKB:P0AC13"
FT BINDING 128
FT /ligand="(7,8-dihydropterin-6-yl)methyl diphosphate"
FT /ligand_id="ChEBI:CHEBI:72950"
FT /evidence="ECO:0000250|UniProtKB:P0AC13"
FT BINDING 199
FT /ligand="(7,8-dihydropterin-6-yl)methyl diphosphate"
FT /ligand_id="ChEBI:CHEBI:72950"
FT /evidence="ECO:0000250|UniProtKB:P0AC13"
FT BINDING 235
FT /ligand="(7,8-dihydropterin-6-yl)methyl diphosphate"
FT /ligand_id="ChEBI:CHEBI:72950"
FT /evidence="ECO:0000250|UniProtKB:P0AC13"
FT BINDING 270..272
FT /ligand="(7,8-dihydropterin-6-yl)methyl diphosphate"
FT /ligand_id="ChEBI:CHEBI:72950"
FT /evidence="ECO:0000250|UniProtKB:P0AC13"
SQ SEQUENCE 289 AA; 31602 MW; 76D28F8ACCEB9BA5 CRC64;
MDQLDQLSDY FPPPLPVGQT LFDWGKRTYV MGILNTTPDS FSDGGEFNSL PTAIHQAKTM
VQGGAHIIDI GGQSTRPGAE TVSLKEELER TIPIIQALRQ ELDIPISIDT TRAEVARQAL
QAGADMVNDI SGATFEPEIL AVAAQHKAPI ILMHIRGNPQ TMQNLTDYGD LIGEMRQFFS
AQVDLARHYG VLPEQIILDP GIGFAKTAEQ NITLLRQLPE LKRLGFPLLV GPSRKSFIGK
ILDQPDPKER VWGTGATCCR AIAGGADIVR VHDVEAMAQI CKVADALWR
