ID Q46I58_PROMT Unreviewed; 485 AA.
AC Q46I58;
DT 13-SEP-2005, integrated into UniProtKB/TrEMBL.
DT 13-SEP-2005, sequence version 1.
DT 27-MAR-2024, entry version 121.
DE RecName: Full=Amidophosphoribosyltransferase {ECO:0000256|HAMAP-Rule:MF_01931};
DE Short=ATase {ECO:0000256|HAMAP-Rule:MF_01931};
DE EC=2.4.2.14 {ECO:0000256|HAMAP-Rule:MF_01931};
DE AltName: Full=Glutamine phosphoribosylpyrophosphate amidotransferase {ECO:0000256|HAMAP-Rule:MF_01931};
DE Short=GPATase {ECO:0000256|HAMAP-Rule:MF_01931};
GN Name=purF {ECO:0000256|HAMAP-Rule:MF_01931};
GN OrderedLocusNames=PMN2A_1331 {ECO:0000313|EMBL:AAZ58820.1};
OS Prochlorococcus marinus (strain NATL2A).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales;
OC Prochlorococcaceae; Prochlorococcus.
OX NCBI_TaxID=59920 {ECO:0000313|EMBL:AAZ58820.1, ECO:0000313|Proteomes:UP000002535};
RN [1] {ECO:0000313|EMBL:AAZ58820.1, ECO:0000313|Proteomes:UP000002535}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NATL2A {ECO:0000313|EMBL:AAZ58820.1,
RC ECO:0000313|Proteomes:UP000002535};
RX PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA Richardson P., Chisholm S.W.;
RT "Patterns and implications of gene gain and loss in the evolution of
RT Prochlorococcus.";
RL PLoS Genet. 3:2515-2528(2007).
CC -!- FUNCTION: Catalyzes the formation of phosphoribosylamine from
CC phosphoribosylpyrophosphate (PRPP) and glutamine. {ECO:0000256|HAMAP-
CC Rule:MF_01931}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-phospho-beta-D-ribosylamine + diphosphate + L-glutamate = 5-
CC phospho-alpha-D-ribose 1-diphosphate + H2O + L-glutamine;
CC Xref=Rhea:RHEA:14905, ChEBI:CHEBI:15377, ChEBI:CHEBI:29985,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:58017, ChEBI:CHEBI:58359,
CC ChEBI:CHEBI:58681; EC=2.4.2.14; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_01931, ECO:0000256|PIRNR:PIRNR000485};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01931,
CC ECO:0000256|PIRSR:PIRSR000485-2};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_01931,
CC ECO:0000256|PIRSR:PIRSR000485-2};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; N(1)-
CC (5-phospho-D-ribosyl)glycinamide from 5-phospho-alpha-D-ribose 1-
CC diphosphate: step 1/2. {ECO:0000256|ARBA:ARBA00005209,
CC ECO:0000256|HAMAP-Rule:MF_01931, ECO:0000256|PIRNR:PIRNR000485}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the purine/pyrimidine
CC phosphoribosyltransferase family. {ECO:0000256|ARBA:ARBA00010138,
CC ECO:0000256|HAMAP-Rule:MF_01931, ECO:0000256|PIRNR:PIRNR000485}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01931}.
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DR EMBL; CP000095; AAZ58820.1; -; Genomic_DNA.
DR RefSeq; WP_011293964.1; NC_007335.2.
DR AlphaFoldDB; Q46I58; -.
DR STRING; 59920.PMN2A_1331; -.
DR MEROPS; C44.001; -.
DR KEGG; pmn:PMN2A_1331; -.
DR HOGENOM; CLU_022389_2_1_3; -.
DR OrthoDB; 9801213at2; -.
DR PhylomeDB; Q46I58; -.
DR UniPathway; UPA00074; UER00124.
DR Proteomes; UP000002535; Chromosome.
DR GO; GO:0004044; F:amidophosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0009113; P:purine nucleobase biosynthetic process; IEA:InterPro.
DR CDD; cd00715; GPATase_N; 1.
DR CDD; cd06223; PRTases_typeI; 1.
DR Gene3D; 3.40.50.2020; -; 1.
DR Gene3D; 3.60.20.10; Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1; 1.
DR HAMAP; MF_01931; PurF; 1.
DR InterPro; IPR017932; GATase_2_dom.
DR InterPro; IPR029055; Ntn_hydrolases_N.
DR InterPro; IPR000836; PRibTrfase_dom.
DR InterPro; IPR029057; PRTase-like.
DR InterPro; IPR005854; PurF.
DR InterPro; IPR035584; PurF_N.
DR NCBIfam; TIGR01134; purF; 1.
DR PANTHER; PTHR11907; AMIDOPHOSPHORIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR11907:SF0; AMIDOPHOSPHORIBOSYLTRANSFERASE; 1.
DR Pfam; PF13522; GATase_6; 1.
DR Pfam; PF00156; Pribosyltran; 1.
DR PIRSF; PIRSF000485; Amd_phspho_trans; 1.
DR SUPFAM; SSF56235; N-terminal nucleophile aminohydrolases (Ntn hydrolases); 1.
DR SUPFAM; SSF53271; PRTase-like; 1.
DR PROSITE; PS51278; GATASE_TYPE_2; 1.
PE 3: Inferred from homology;
KW Glutamine amidotransferase {ECO:0000256|HAMAP-Rule:MF_01931};
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_01931};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01931, ECO:0000256|PIRSR:PIRSR000485-
KW 2};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01931,
KW ECO:0000256|PIRSR:PIRSR000485-2};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_01931}; Reference proteome {ECO:0000313|Proteomes:UP000002535};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01931,
KW ECO:0000256|PIRNR:PIRNR000485}.
FT DOMAIN 2..237
FT /note="Glutamine amidotransferase type-2"
FT /evidence="ECO:0000259|PROSITE:PS51278"
FT ACT_SITE 2
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01931,
FT ECO:0000256|PIRSR:PIRSR000485-1"
FT BINDING 306
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01931,
FT ECO:0000256|PIRSR:PIRSR000485-2"
FT BINDING 368
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01931,
FT ECO:0000256|PIRSR:PIRSR000485-2"
FT BINDING 369
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01931,
FT ECO:0000256|PIRSR:PIRSR000485-2"
SQ SEQUENCE 485 AA; 54499 MW; 8C3DFFF3A5A69ADD CRC64;
MCGIVGVVST DQCNQQIYDS LLLLQHRGQD STGIATMDGS VFHINKSKGQ VREAYRTRDM
RALIGRSGLG HVRYATKGAA HREEEAQPFY VNAPYGIILV HNGNLTNTRE LEKELFKVDK
RHTNTSSDTE MLLNVLATEL NSEVKGKDVD PDDLFNAVKR LHSRVEGSYA SIALIAGHGL
LAFRDPFGIR PLVIGKRVKE NNKPEWVIAS ESLVIENNDY VIVRDVEPGE AIFITSNGEF
FSKQCSDNPQ LFPCSFEYVY LARPDSIMNG ISVYESRLRM GDLLAETIKK QISLGDIDVV
MPIPDSSRPA AMQVARQLGI EYREGFFKNR YVGRTFIMPG QSLRKRSVRQ KLNAMSTEFK
NKNVLIVDDS VVRGTTSQQI VQMARSAGAN KVTFTSAAPP IRYPHVYGIN MPSRNELIAY
NRDINQIENN LFIDKMIYQE VNDLTQAITQ NSKIKELDLS CFTGKYITGT VTDEYLTWVE
ETSLS
//
