ID G8PS18_PSEUV Unreviewed; 755 AA.
AC G8PS18;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 24-JAN-2024, entry version 65.
DE RecName: Full=Phosphoribosylformylglycinamidine synthase subunit PurL {ECO:0000256|HAMAP-Rule:MF_00420};
DE Short=FGAM synthase {ECO:0000256|HAMAP-Rule:MF_00420};
DE EC=6.3.5.3 {ECO:0000256|HAMAP-Rule:MF_00420};
DE AltName: Full=Formylglycinamide ribonucleotide amidotransferase subunit II {ECO:0000256|HAMAP-Rule:MF_00420};
DE Short=FGAR amidotransferase II {ECO:0000256|HAMAP-Rule:MF_00420};
DE Short=FGAR-AT II {ECO:0000256|HAMAP-Rule:MF_00420};
DE AltName: Full=Glutamine amidotransferase PurL {ECO:0000256|HAMAP-Rule:MF_00420};
DE AltName: Full=Phosphoribosylformylglycinamidine synthase subunit II {ECO:0000256|HAMAP-Rule:MF_00420};
GN Name=purL {ECO:0000256|HAMAP-Rule:MF_00420,
GN ECO:0000313|EMBL:AEV38553.1};
GN OrderedLocusNames=PSE_4049 {ECO:0000313|EMBL:AEV38553.1};
OS Pseudovibrio sp. (strain FO-BEG1).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Stappiaceae; Pseudovibrio.
OX NCBI_TaxID=911045 {ECO:0000313|EMBL:AEV38553.1, ECO:0000313|Proteomes:UP000005634};
RN [1] {ECO:0000313|Proteomes:UP000005634}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=FO-BEG1 {ECO:0000313|Proteomes:UP000005634};
RA Bondarev V., Richter M., Piel J., Schwedt A., Schulz-Vogt H.N.;
RT "The genus Pseudovibrio contains metabolically versatile and symbiotically
RT interacting bacteria.";
RL Submitted (NOV-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AEV38553.1, ECO:0000313|Proteomes:UP000005634}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=FO-BEG1 {ECO:0000313|EMBL:AEV38553.1,
RC ECO:0000313|Proteomes:UP000005634};
RX PubMed=23601235; DOI=10.1111/1462-2920.12123;
RA Bondarev V., Richter M., Romano S., Piel J., Schwedt A., Schulz-Vogt H.N.;
RT "The genus Pseudovibrio contains metabolically versatile bacteria adapted
RT for symbiosis.";
RL Environ. Microbiol. 15:2095-2113(2013).
CC -!- FUNCTION: Part of the phosphoribosylformylglycinamidine synthase
CC complex involved in the purines biosynthetic pathway. Catalyzes the
CC ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) and
CC glutamine to yield formylglycinamidine ribonucleotide (FGAM) and
CC glutamate. The FGAM synthase complex is composed of three subunits.
CC PurQ produces an ammonia molecule by converting glutamine to glutamate.
CC PurL transfers the ammonia molecule to FGAR to form FGAM in an ATP-
CC dependent manner. PurS interacts with PurQ and PurL and is thought to
CC assist in the transfer of the ammonia molecule from PurQ to PurL.
CC {ECO:0000256|HAMAP-Rule:MF_00420}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O + L-glutamine + N(2)-formyl-N(1)-(5-phospho-beta-D-
CC ribosyl)glycinamide = 2-formamido-N(1)-(5-O-phospho-beta-D-
CC ribosyl)acetamidine + ADP + H(+) + L-glutamate + phosphate;
CC Xref=Rhea:RHEA:17129, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:58359, ChEBI:CHEBI:147286, ChEBI:CHEBI:147287,
CC ChEBI:CHEBI:456216; EC=6.3.5.3; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00420};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5-
CC amino-1-(5-phospho-D-ribosyl)imidazole from N(2)-formyl-N(1)-(5-
CC phospho-D-ribosyl)glycinamide: step 1/2. {ECO:0000256|HAMAP-
CC Rule:MF_00420}.
CC -!- SUBUNIT: Monomer. Part of the FGAM synthase complex composed of 1 PurL,
CC 1 PurQ and 2 PurS subunits. {ECO:0000256|HAMAP-Rule:MF_00420}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00420}.
CC -!- SIMILARITY: Belongs to the FGAMS family. {ECO:0000256|HAMAP-
CC Rule:MF_00420}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00420}.
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DR EMBL; CP003147; AEV38553.1; -; Genomic_DNA.
DR AlphaFoldDB; G8PS18; -.
DR STRING; 911045.PSE_4049; -.
DR KEGG; psf:PSE_4049; -.
DR eggNOG; COG0046; Bacteria.
DR HOGENOM; CLU_003100_0_1_5; -.
DR OMA; FIEPYQG; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000005634; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004642; F:phosphoribosylformylglycinamidine synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd02203; PurL_repeat1; 1.
DR CDD; cd02204; PurL_repeat2; 1.
DR Gene3D; 3.90.650.10; PurM-like C-terminal domain; 2.
DR Gene3D; 3.30.1330.10; PurM-like, N-terminal domain; 2.
DR HAMAP; MF_00420; PurL_2; 1.
DR InterPro; IPR010074; PRibForGlyAmidine_synth_PurL.
DR InterPro; IPR041609; PurL_linker.
DR InterPro; IPR010918; PurM-like_C_dom.
DR InterPro; IPR036676; PurM-like_C_sf.
DR InterPro; IPR016188; PurM-like_N.
DR InterPro; IPR036921; PurM-like_N_sf.
DR NCBIfam; TIGR01736; FGAM_synth_II; 1.
DR PANTHER; PTHR43555; PHOSPHORIBOSYLFORMYLGLYCINAMIDINE SYNTHASE SUBUNIT PURL; 1.
DR PANTHER; PTHR43555:SF1; PHOSPHORIBOSYLFORMYLGLYCINAMIDINE SYNTHASE SUBUNIT PURL; 1.
DR Pfam; PF00586; AIRS; 2.
DR Pfam; PF02769; AIRS_C; 2.
DR Pfam; PF18072; FGAR-AT_linker; 1.
DR PIRSF; PIRSF001587; FGAM_synthase_II; 1.
DR SUPFAM; SSF56042; PurM C-terminal domain-like; 2.
DR SUPFAM; SSF55326; PurM N-terminal domain-like; 2.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_00420};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00420};
KW Ligase {ECO:0000256|HAMAP-Rule:MF_00420, ECO:0000313|EMBL:AEV38553.1};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_00420};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00420}; Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00420};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_00420}.
FT DOMAIN 38..75
FT /note="Phosphoribosylformylglycinamidine synthase linker"
FT /evidence="ECO:0000259|Pfam:PF18072"
FT DOMAIN 96..210
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 224..376
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT DOMAIN 458..576
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 592..724
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT ACT_SITE 71
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT ACT_SITE 117
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 74
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 113
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 115
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 116..119
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 138
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 139
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 262
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 290
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 334..336
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 515
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 552
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 553
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 555
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
SQ SEQUENCE 755 AA; 80475 MW; 9827D266AC78A2AE CRC64;
MNPVKQPVTF GPGAQRPNFL SVMIQNSVKI TPELIEAHGL KEDEYARILE LIGREPTFTE
LGIFSAMWNE HCSYKSSKKW LKTLPTTGPR VIQGPGENAG VVDIDDGQAV VFKMESHNHP
SYIEPYQGAA TGVGGILRDV FTMGARPVAA MNALRFGEPD HPRTRHLVSG VVSGVGGYGN
SFGVPTVGGE VEFHKSYNGN CLVNAFAAGL ADADKIFLSE AKGVGLPVVY LGAKTGRDGV
GGATMASAEF DDSIDEKRPT VQVGDPFTEK CLMEACLELM KTGAVIAIQD MGAAGLTCSA
VEMGAKGNLG IELDLDKVPA REENMTAYEM MLSESQERML MVLEPSKEKE AEAIFTKWGL
DFAICGITTD TLRFVVKQHG EVMADLPIKE LGDEAPEYDR PWTQWPEPEE IAAANVEEPT
DYKEALLKLL GGANGSSRRW VYEQYDTLIQ GNSAATPGGD AGVIRVDGTD KGLAFSVDVN
PRYCYANPYE GGKQAVAETY RNLSAVGSLP LAITDNLNFG NPEKPEIMGQ FVGCLKGIGE
ACEVLETPIV SGNVSLYNET YGEGILPTPA IGGVGLLKDV TKRVGSAFVS TGETIVVLGG
KGKHLGSSQY LQEVLGREEG APPPVDLEVE KLTGTFVREA ITEGRITAAH DISSGGLAVA
LAEMAIKGKL GATAKVTGDH PHAILFGEDQ SRYVVTVAEE KLAAFLEDAI DAGISTEEIG
KTGGNTLVLG GKISVSVEEL NNAFEGWFPH FMQAS
//