ID A0A2P7N1W9_9CYAN Unreviewed; 223 AA.
AC A0A2P7N1W9;
DT 23-MAY-2018, integrated into UniProtKB/TrEMBL.
DT 23-MAY-2018, sequence version 1.
DT 24-JAN-2024, entry version 21.
DE RecName: Full=Phosphoribosylglycinamide formyltransferase {ECO:0000256|HAMAP-Rule:MF_01930};
DE EC=2.1.2.2 {ECO:0000256|HAMAP-Rule:MF_01930};
DE AltName: Full=5'-phosphoribosylglycinamide transformylase {ECO:0000256|HAMAP-Rule:MF_01930};
DE AltName: Full=GAR transformylase {ECO:0000256|HAMAP-Rule:MF_01930};
DE Short=GART {ECO:0000256|HAMAP-Rule:MF_01930};
GN Name=purN {ECO:0000256|HAMAP-Rule:MF_01930};
GN ORFNames=C7K55_01800 {ECO:0000313|EMBL:PSJ07470.1};
OS Cyanobium usitatum str. Tous.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales;
OC Prochlorococcaceae; Cyanobium.
OX NCBI_TaxID=2116684 {ECO:0000313|EMBL:PSJ07470.1, ECO:0000313|Proteomes:UP000243002};
RN [1] {ECO:0000313|EMBL:PSJ07470.1, ECO:0000313|Proteomes:UP000243002}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Tous {ECO:0000313|EMBL:PSJ07470.1,
RC ECO:0000313|Proteomes:UP000243002};
RX PubMed=30117250; DOI=.1111/1462-2920.14377;
RA Cabello-Yeves P.J., Picazo A., Camacho A., Callieri C., Rosselli R.,
RA Roda-Garcia J.J., Coutinho F.H., Rodriguez-Valera F.;
RT "Ecological and genomic features of two widespread freshwater
RT picocyanobacteria.";
RL Environ. Microbiol. 20:3757-3771(2018).
CC -!- FUNCTION: Catalyzes the transfer of a formyl group from 10-
CC formyltetrahydrofolate to 5-phospho-ribosyl-glycinamide (GAR),
CC producing 5-phospho-ribosyl-N-formylglycinamide (FGAR) and
CC tetrahydrofolate. {ECO:0000256|HAMAP-Rule:MF_01930}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6R)-10-formyltetrahydrofolate + N(1)-(5-phospho-beta-D-
CC ribosyl)glycinamide = (6S)-5,6,7,8-tetrahydrofolate + H(+) + N(2)-
CC formyl-N(1)-(5-phospho-beta-D-ribosyl)glycinamide;
CC Xref=Rhea:RHEA:15053, ChEBI:CHEBI:15378, ChEBI:CHEBI:57453,
CC ChEBI:CHEBI:143788, ChEBI:CHEBI:147286, ChEBI:CHEBI:195366;
CC EC=2.1.2.2; Evidence={ECO:0000256|HAMAP-Rule:MF_01930};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; N(2)-
CC formyl-N(1)-(5-phospho-D-ribosyl)glycinamide from N(1)-(5-phospho-D-
CC ribosyl)glycinamide (10-formyl THF route): step 1/1.
CC {ECO:0000256|ARBA:ARBA00005054, ECO:0000256|HAMAP-Rule:MF_01930}.
CC -!- SIMILARITY: Belongs to the GART family. {ECO:0000256|HAMAP-
CC Rule:MF_01930}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01930}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:PSJ07470.1}.
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DR EMBL; PXXO01000001; PSJ07470.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2P7N1W9; -.
DR OrthoDB; 9806170at2; -.
DR UniPathway; UPA00074; UER00126.
DR Proteomes; UP000243002; Unassembled WGS sequence.
DR GO; GO:0004644; F:phosphoribosylglycinamide formyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd08645; FMT_core_GART; 1.
DR Gene3D; 3.40.50.170; Formyl transferase, N-terminal domain; 1.
DR HAMAP; MF_01930; PurN; 1.
DR InterPro; IPR002376; Formyl_transf_N.
DR InterPro; IPR036477; Formyl_transf_N_sf.
DR InterPro; IPR004607; GART.
DR NCBIfam; TIGR00639; PurN; 1.
DR PANTHER; PTHR43369; PHOSPHORIBOSYLGLYCINAMIDE FORMYLTRANSFERASE; 1.
DR PANTHER; PTHR43369:SF2; PHOSPHORIBOSYLGLYCINAMIDE FORMYLTRANSFERASE; 1.
DR Pfam; PF00551; Formyl_trans_N; 1.
DR SUPFAM; SSF53328; Formyltransferase; 1.
PE 3: Inferred from homology;
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_01930}; Reference proteome {ECO:0000313|Proteomes:UP000243002};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01930}.
FT DOMAIN 34..213
FT /note="Formyl transferase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00551"
FT ACT_SITE 140
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01930"
FT BINDING 43..45
FT /ligand="N(1)-(5-phospho-beta-D-ribosyl)glycinamide"
FT /ligand_id="ChEBI:CHEBI:143788"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01930"
FT BINDING 96
FT /ligand="(6R)-10-formyltetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:195366"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01930"
FT BINDING 138
FT /ligand="(6R)-10-formyltetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:195366"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01930"
FT SITE 176
FT /note="Raises pKa of active site His"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01930"
SQ SEQUENCE 223 AA; 23661 MW; DFB12ED5BA656684 CRC64;
MPAFSDPSDQ ETCVQWPLPP ELQPDWARAQ PILRLGVMAS GAGSNFEALV QACTDGRLQA
EVALLVVNNP GCGAQQRAER LAIPCQVHDH RGVASREVLD QALVAAFQAA GVDVVVMAGW
MRVVTSTLIG AFPERLINIH PSLLPSFRGL DAVGQALAAG VTLAGCTAHL VCEEVDAGRI
LVQAAVPVLA TDDHPSLNAR IQRQEHRILP LAVSLVVDLV RQG
//
