ID A0A1G6VSX0_9ACTN Unreviewed; 759 AA.
AC A0A1G6VSX0;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 24.
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 ORFNames=SAMN05216270_105117 {ECO:0000313|EMBL:SDD56780.1};
OS Glycomyces harbinensis.
OC Bacteria; Actinomycetota; Actinomycetes; Glycomycetales; Glycomycetaceae;
OC Glycomyces.
OX NCBI_TaxID=58114 {ECO:0000313|EMBL:SDD56780.1, ECO:0000313|Proteomes:UP000198949};
RN [1] {ECO:0000313|EMBL:SDD56780.1, ECO:0000313|Proteomes:UP000198949}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGMCC 4.3516 {ECO:0000313|EMBL:SDD56780.1,
RC ECO:0000313|Proteomes:UP000198949};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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; FNAD01000005; SDD56780.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G6VSX0; -.
DR STRING; 58114.SAMN05216270_105117; -.
DR OrthoDB; 9804441at2; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000198949; Unassembled WGS sequence.
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};
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 26..65
FT /note="Phosphoribosylformylglycinamidine synthase linker"
FT /evidence="ECO:0000259|Pfam:PF18072"
FT DOMAIN 89..204
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 217..372
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT DOMAIN 460..579
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 593..728
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT ACT_SITE 61
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT ACT_SITE 110
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 64
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 106
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 108
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 109..112
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 131
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 132
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 257
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 285
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 329..331
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 517
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 554
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 555
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 557
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
SQ SEQUENCE 759 AA; 80453 MW; 83E50C088F286E29 CRC64;
MTRDLNVAVD TVGVADATPD EKQPWAELGL KEDEYQRIRE VLGRRPTQSE LAMYSIMWSE
HCSYKSSKVH LRQFGEKNPR TPRLLAGIGE NAGVVAIDDH IAVTFKVESH NHPSYVEPKQ
GAATGVGGII RDIIAMGARP IAVMDSLRFG AIDHPDTARV LPGVVDGIGH YGNCVGLPNI
GGETYFDPCY QGNPLVNALS VGVMPRSRLQ SMQASGTGNI VILLGAKTGR DGIGGVSVLA
SATFSESGEG DARPSVQVGD PFTEKLLIEV CLELFDAGLV VGVQDLGGAG LTCALSETAA
AGDGGMHVDL ELVPLRAEGM EPQDILASES QERMLLIVDP AKAEEVLARS RRWGLLATAI
GTVTGTGRLV VDFHGQTVVD VPPKSLADEG PVYNRPFTEP NDLGLIAVDR AETLPRPATD
EEIRQTVLDM AASPNLCDKS WITEQYDSSV FGNTVLGAPH DAGVIRLDER TGVGIAISLD
GNGRFARLDP YHGAQLALAE AYRNVAVTGA TPIAVSDCLN FGSPEDPHVM WQFERAVTGI
ADGCQKLGIP VTGGNVSFYN QTGREAIHPT PVIGVLGVID DVARRIPLGL GRTGDTIALI
GTTLEELSGS EWAQVKHGHL GGVPPKVDLD HEMKLAELLG RLAGTEQLAA AHDLSEGGLA
QALVEAICHS GLGAQILLPE GADPFTYLFS ESSGRVLVVI PRGQELAVRT ACEQRGLPIT
PLGVTDANTD GLHLRDHFDL TRGDLEAAWK GRIGSRLGE
//
