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PURL_CAUVC
ID   PURL_CAUVC              Reviewed;         739 AA.
AC   Q9A5F0;
DT   05-MAR-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   03-AUG-2022, entry version 120.
DE   RecName: Full=Phosphoribosylformylglycinamidine synthase subunit PurL {ECO:0000255|HAMAP-Rule:MF_00420};
DE            Short=FGAM synthase {ECO:0000255|HAMAP-Rule:MF_00420};
DE            EC=6.3.5.3 {ECO:0000255|HAMAP-Rule:MF_00420};
DE   AltName: Full=Formylglycinamide ribonucleotide amidotransferase subunit II {ECO:0000255|HAMAP-Rule:MF_00420};
DE            Short=FGAR amidotransferase II {ECO:0000255|HAMAP-Rule:MF_00420};
DE            Short=FGAR-AT II {ECO:0000255|HAMAP-Rule:MF_00420};
DE   AltName: Full=Glutamine amidotransferase PurL {ECO:0000255|HAMAP-Rule:MF_00420};
DE   AltName: Full=Phosphoribosylformylglycinamidine synthase subunit II {ECO:0000255|HAMAP-Rule:MF_00420};
GN   Name=purL {ECO:0000255|HAMAP-Rule:MF_00420}; OrderedLocusNames=CC_2500;
OS   Caulobacter vibrioides (strain ATCC 19089 / CB15) (Caulobacter crescentus).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Caulobacterales;
OC   Caulobacteraceae; Caulobacter.
OX   NCBI_TaxID=190650;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 19089 / CB15;
RX   PubMed=11259647; DOI=10.1073/pnas.061029298;
RA   Nierman W.C., Feldblyum T.V., Laub M.T., Paulsen I.T., Nelson K.E.,
RA   Eisen J.A., Heidelberg J.F., Alley M.R.K., Ohta N., Maddock J.R.,
RA   Potocka I., Nelson W.C., Newton A., Stephens C., Phadke N.D., Ely B.,
RA   DeBoy R.T., Dodson R.J., Durkin A.S., Gwinn M.L., Haft D.H., Kolonay J.F.,
RA   Smit J., Craven M.B., Khouri H.M., Shetty J., Berry K.J., Utterback T.R.,
RA   Tran K., Wolf A.M., Vamathevan J.J., Ermolaeva M.D., White O.,
RA   Salzberg S.L., Venter J.C., Shapiro L., Fraser C.M.;
RT   "Complete genome sequence of Caulobacter crescentus.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:4136-4141(2001).
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:0000255|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:0000255|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:0000255|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:0000255|HAMAP-Rule:MF_00420}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00420}.
CC   -!- SIMILARITY: Belongs to the FGAMS family. {ECO:0000255|HAMAP-
CC       Rule:MF_00420}.
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DR   EMBL; AE005673; AAK24471.1; -; Genomic_DNA.
DR   PIR; C87559; C87559.
DR   RefSeq; NP_421303.1; NC_002696.2.
DR   RefSeq; WP_010920357.1; NC_002696.2.
DR   AlphaFoldDB; Q9A5F0; -.
DR   SMR; Q9A5F0; -.
DR   STRING; 190650.CC_2500; -.
DR   EnsemblBacteria; AAK24471; AAK24471; CC_2500.
DR   KEGG; ccr:CC_2500; -.
DR   PATRIC; fig|190650.5.peg.2518; -.
DR   eggNOG; COG0046; Bacteria.
DR   HOGENOM; CLU_003100_0_1_5; -.
DR   OMA; FIEPYQG; -.
DR   BioCyc; CAULO:CC2500-MON; -.
DR   UniPathway; UPA00074; UER00128.
DR   Proteomes; UP000001816; 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   Gene3D; 3.30.1330.10; -; 2.
DR   Gene3D; 3.90.650.10; -; 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   PANTHER; PTHR43555; PTHR43555; 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; SSF55326; SSF55326; 2.
DR   SUPFAM; SSF56042; SSF56042; 2.
DR   TIGRFAMs; TIGR01736; FGAM_synth_II; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Ligase; Magnesium; Metal-binding;
KW   Nucleotide-binding; Purine biosynthesis; Reference proteome.
FT   CHAIN           1..739
FT                   /note="Phosphoribosylformylglycinamidine synthase subunit
FT                   PurL"
FT                   /id="PRO_0000100448"
FT   ACT_SITE        52
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   ACT_SITE        98
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         55
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         94
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         96
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         97..100
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         119
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         120
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         243
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         271
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         315..317
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         498
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         535
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         536
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT   BINDING         538
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
SQ   SEQUENCE   739 AA;  77704 MW;  942A0741D9E858F5 CRC64;
     MSTSSTPSAK PMAEMAAEFG LKPAEYDVVL KRLGREPNLV ELGVFSVMWS EHCSYKSSKN
     QLKKFPIDGP RVICGPGENA GVIDIGDGDA IIFKMESHNH PSYIEPYQGA ATGVGGIMRD
     VFTMGARPIA LLNALRFGDP SHPKTKRLVD GVVAGIAGYG NCVGVPTVAG ETNFHKGYNG
     NILVNAMCVG LAKADSIFYS AAPGPGLAVV YFGSKTGRDG IHGATMSSAE FSEDSEEKRP
     TVQVGDPFAE KLLIEATLEL MATGAVAAIQ DMGAAGLTSS SVEMAGKGGV GIELNMDMVP
     QRETGMSAYE MMLSESQERM LAVLKPGREQ DGHAIFEKWG LDAAVIGYTT DTGRLVLKHH
     GETVCDVPLA PLFDDAPLYD RPWVQPALQP RLDPAAVPAP TNWNEAVLKI IGCPDMASKR
     WLWEQYDRHV MADTLEDSAT GCDAGIVRIH GTGKAIAVTS DCTPRYVQAD PYEGGKQAVA
     EAWRNLTAAG ALPIAITDNL NFGSPEKPET MGQIVRATDG MAEACRALDF PVVSGNVSLY
     NETNGVAIPP TPTVGGVGLL EDYDLRTGFG NVAEGDTLVL VGETRGELGA SIYLREILGR
     EDGAPPPVDL ALERKTGDFV RGLISSGLVA GVHDLSDGGL LVAAADVALA SKIGVTLNAT
     SQTHAHAYLL GEDQARYLIA TPDPDAVLEA AKEAGVHANV AGVAGGEAFA SDGLFSVSLD
     ALRAAHEAWL PGYMSAPKA
 
 
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