ID A0A2I0SGY5_9ACTN Unreviewed; 752 AA.
AC A0A2I0SGY5;
DT 28-FEB-2018, integrated into UniProtKB/TrEMBL.
DT 28-FEB-2018, sequence version 1.
DT 24-JAN-2024, entry version 23.
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=CW362_30835 {ECO:0000313|EMBL:PKT69193.1};
OS Streptomyces populi.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=2058924 {ECO:0000313|EMBL:PKT69193.1, ECO:0000313|Proteomes:UP000236178};
RN [1] {ECO:0000313|EMBL:PKT69193.1, ECO:0000313|Proteomes:UP000236178}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=A249 {ECO:0000313|EMBL:PKT69193.1,
RC ECO:0000313|Proteomes:UP000236178};
RA Wang Z.;
RT "Streptomyces populusis sp. nov., a novel endophytic actinobacterium
RT isolated from stems of Populus adenopoda Maxim.";
RL Submitted (DEC-2017) 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}.
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:PKT69193.1}.
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DR EMBL; PJOS01000082; PKT69193.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2I0SGY5; -.
DR OrthoDB; 9804441at2; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000236178; 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:UP000236178}.
FT DOMAIN 24..62
FT /note="Phosphoribosylformylglycinamidine synthase linker"
FT /evidence="ECO:0000259|Pfam:PF18072"
FT DOMAIN 86..201
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 214..369
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT DOMAIN 456..575
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 588..724
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT ACT_SITE 58
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT ACT_SITE 107
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 61
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 103
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 105
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 106..109
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 128
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 129
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 253
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 281
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 325..327
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 513
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 550
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 551
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 553
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
SQ SEQUENCE 752 AA; 79855 MW; 95AD3A4E9D1DD532 CRC64;
MSRTPLDTVE HAAATPDVEL PWAELGLKKD EYERVVEILG RRPTGAELAM YSVMWSEHCS
YKSSKVHLRQ FGEKAPQSDA MLVGIGENAG VVDVGQGYAV TFKVESHNHP SYVEPYQGAA
TGVGGIVRDI IAMGARPVAV VDPLRFGAAD HPDTKRVLPG VVAGIGGYGN CLGLPNIGGE
VVFDACYQGN PLVNAGAIGV MRHEDIHLAK ASGTGNKVIL YGARTGGDGI GGASILASET
FDDAKPSKRP AVQVGDPFQE KLLIECTLEA FAEKLVVGIQ DLGAAGLSCA TSELASNGSG
GMRVTLDDVP LRDSTLSPEE ILMSESQERM CAVVEPEKVD RFLEICDKWD VIATVIGEVT
DGDRLEIFWH GGKIVDVDPR TVAHDGPVYE RPYARPEWQD ALQADDAGKL PRPENGAELK
DQVLKLVSSP NQASKSWITS QYDHFVQGNT VLAQPEDSGM IRIDEESGLG VAIATDGNGR
YAKLDPYTGA QLALAEAYRN VATTGAKPLA VSDCLNFGSP EDPAVMWQFA EAIRGLADAC
QQLGTPVTGG NVSLYNQTGE VAIHPTPVVA VLGVIDDVAR RTPVAFQEEG QLLYLLGDTR
EEFGGSAWSQ VVHDHLGGLP PKVDLERERL LAEILISASR DGMIDSAHDL SDGGLVQAVV
ESALLGGKGA RLVVPDGLDA FTFLFSESAG RAVVAVPRSE ELRFNDMCGA RGLPVTRIGV
VDGDAVDVQG EFALSLDELR TAHEGTIPAL LA
//
