ID A0A1G9CVQ4_9RHOB Unreviewed; 722 AA.
AC A0A1G9CVQ4;
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=SAMN05216257_103246 {ECO:0000313|EMBL:SDK55729.1};
OS Meinhardsimonia xiamenensis.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Meinhardsimonia.
OX NCBI_TaxID=990712 {ECO:0000313|EMBL:SDK55729.1, ECO:0000313|Proteomes:UP000199328};
RN [1] {ECO:0000313|Proteomes:UP000199328}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGMCC 1.10789 {ECO:0000313|Proteomes:UP000199328};
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; FNFV01000003; SDK55729.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G9CVQ4; -.
DR STRING; 990712.SAMN05216257_103246; -.
DR OrthoDB; 9804441at2; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000199328; 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:UP000199328}.
FT DOMAIN 14..51
FT /note="Phosphoribosylformylglycinamidine synthase linker"
FT /evidence="ECO:0000259|Pfam:PF18072"
FT DOMAIN 72..187
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 200..350
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT DOMAIN 434..550
FT /note="PurM-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00586"
FT DOMAIN 562..691
FT /note="PurM-like C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02769"
FT ACT_SITE 47
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT ACT_SITE 93
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 50
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 89
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 91
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 92..95
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 114
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 115
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 238
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 266
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 310..312
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 488
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
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 526
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
FT BINDING 528
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00420"
SQ SEQUENCE 722 AA; 76631 MW; AFF4906B28F41C6B CRC64;
MQEPKITEEL IIAHGLKPDE YQRILDILGR EPTFTELGIF SAMWNEHCSY KSSKKWLRTL
PTEGPQVICG PGENAGVVDI GDGLAVVFKM ESHNHPSYIE PYQGAATGVG GILRDVFTMG
ARPIAAMNSL SFGELSHPRT RRLVHGVVEG IGGYGNCFGV PTVGGEVRFH RAYNGNCLVN
AFAAGIAQAD RIFYSAASGV GMPVVYLGAK TGRDGVGGAT MASAEFDESI EEKRPTVQVG
DPFTEKCLLE ACLELMAADA VISIQDMGAA GLTCSAVEMG DKGGLGIRLN LDAVPQREEG
MTAYEMMLSE SQERMLMVLK PEKEEEARAI FAKWDLDFAI VGETIAEDRF LVFHGNELKA
DLPLRALSGE APEYDRPWVT PAPPPPLGEV PRVDPVDALK ILIASPNYAS KAWVYEQYDT
QVMGDTVQGP GFGAGLVRVH GTEKILAFTS DVTPRYVQAD PKEGGKQAVA EAFRNLCAVG
ARPLAVTDNL NFGNPEKPEI MGQFVLAIQG IGEACRALDM PVVSGNVSLY NETDGQPILP
TPTIGAVGLI ESPEELIGGR ARAGHVAVVL GGAGAHLGQS ALLAEVFHRE EGPPPPVDLA
AERAAGEFIR ANAHLIRACT DISDGGLALA AFEMAAASGV GVTLDEEDTA ALFGEDQGRY
LIACNFDAAE ALMVEAARAV LPIATVGRFG GETVRMGGSE APLAELVELW RSAFGRAIDG
GI
//
