ID A0A1I2JUX6_9ACTN Unreviewed; 777 AA.
AC A0A1I2JUX6;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 25.
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=SAMN05216574_11763 {ECO:0000313|EMBL:SFF56937.1};
OS Blastococcus sp. DSM 46838.
OC Bacteria; Actinomycetota; Actinomycetes; Geodermatophilales;
OC Geodermatophilaceae; Blastococcus.
OX NCBI_TaxID=1798228 {ECO:0000313|EMBL:SFF56937.1, ECO:0000313|Proteomes:UP000198589};
RN [1] {ECO:0000313|Proteomes:UP000198589}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 46838 {ECO:0000313|Proteomes:UP000198589};
RA Varghese N., Submissions S.;
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; FOND01000017; SFF56937.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1I2JUX6; -.
DR STRING; 1798228.SAMN05216574_11763; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000198589; 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}; Reference proteome {ECO:0000313|Proteomes:UP000198589}.
FT DOMAIN 36..75
FT /note="Phosphoribosylformylglycinamidine synthase linker"
FT /evidence="ECO:0000259|Pfam:PF18072"
FT DOMAIN 98..213
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 226..381
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT DOMAIN 468..586
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 601..731
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 119
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 115
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 117
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 118..121
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 140
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 141
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 265
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 293
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 337..339
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 525
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 562
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 563
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 565
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
SQ SEQUENCE 777 AA; 81183 MW; F1178F2AFCCF12EE CRC64;
MSQGLSDLDT GPGRLADRLD TVELAAGTPD DEQPFAELGL KADEYARIKE ILGRRPTTAE
LAMYSVMWSE HCSYKSSKVH LRQFGDLPPS EALLVGIGEN AGVVDVGDGY AVTFKVESHN
HPSYVEPYQG AATGVGGIVR DILTMGARPI AVMDSLRFGR ADAPDTARVL PGVVAGVGGY
GNCLGLPNIG GELLFDDCYA GNPLVNALCV GVMRHEDVRL AKAEGVGNKV ILFGARTGGD
GIGGVSVLAS ETFDAEGPAK RPSVQVGDPF TEKLLIEACL EIFAADLVTG IQDLGGAGLS
CATSELASAG TGGMHVDLDT VPLRDSTLTP AEILMSESQE RMCAIVEPAK VADFLAVCAK
WDVLATVVGE VTDGDRLTVD WHGERIVDVP PRTVAHEGPV YERPMARPAD LDALQADDPA
RLPRPTTPAE VQAHWLALVS SPDGADKTWV TEQYDRYVRG NTVLAQPEDA GVVRIDEESN
RGIALALDGN ARYARLDPYL GAQLNLAEAY RNVAVSGARP LAVTNCLNFG SPEEPEVMWQ
FAEAVRGLAD ACRELGLPVT GGNVSLYNQT GDVPINPTPV IGVLGVHQDV RTRVPSGWRT
AGETVLLLGE TRPEFGGSAW ASVVHGHLGG RPPALDLAAE RALAELLGAL ATEGLLGSAH
DLSDGGLAQA LTESALRYGV GADLHLDGDA FTALFSESTG RVVVTTSDPG GVKTTARWAG
VTVTELGTTG GDALRLDGGL DLPLAELRAA WTATLPALFG SPDVAVGTVP AGTVPTS
//
