PURL_MYCLE
ID PURL_MYCLE Reviewed; 754 AA.
AC Q50023; O05759;
DT 11-JUL-2001, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1996, sequence version 1.
DT 03-AUG-2022, entry version 132.
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=ML2211;
GN ORFNames=MLCB5.30;
OS Mycobacterium leprae (strain TN).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacterium.
OX NCBI_TaxID=272631;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Smith D.R., Robison K.;
RL Submitted (APR-1995) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TN;
RX PubMed=11234002; DOI=10.1038/35059006;
RA Cole S.T., Eiglmeier K., Parkhill J., James K.D., Thomson N.R.,
RA Wheeler P.R., Honore N., Garnier T., Churcher C.M., Harris D.E.,
RA Mungall K.L., Basham D., Brown D., Chillingworth T., Connor R.,
RA Davies R.M., Devlin K., Duthoy S., Feltwell T., Fraser A., Hamlin N.,
RA Holroyd S., Hornsby T., Jagels K., Lacroix C., Maclean J., Moule S.,
RA Murphy L.D., Oliver K., Quail M.A., Rajandream M.A., Rutherford K.M.,
RA Rutter S., Seeger K., Simon S., Simmonds M., Skelton J., Squares R.,
RA Squares S., Stevens K., Taylor K., Whitehead S., Woodward J.R.,
RA Barrell B.G.;
RT "Massive gene decay in the leprosy bacillus.";
RL Nature 409:1007-1011(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; U15182; AAA62986.1; -; Genomic_DNA.
DR EMBL; Z95151; CAB08431.1; -; Genomic_DNA.
DR EMBL; AL583924; CAC31166.1; -; Genomic_DNA.
DR PIR; F87185; F87185.
DR RefSeq; NP_302451.1; NC_002677.1.
DR RefSeq; WP_010908771.1; NC_002677.1.
DR AlphaFoldDB; Q50023; -.
DR SMR; Q50023; -.
DR STRING; 272631.ML2211; -.
DR EnsemblBacteria; CAC31166; CAC31166; CAC31166.
DR KEGG; mle:ML2211; -.
DR PATRIC; fig|272631.5.peg.4186; -.
DR Leproma; ML2211; -.
DR eggNOG; COG0046; Bacteria.
DR HOGENOM; CLU_003100_0_1_11; -.
DR OMA; FIEPYQG; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000000806; 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..754
FT /note="Phosphoribosylformylglycinamidine synthase subunit
FT PurL"
FT /id="PRO_0000100471"
FT REGION 386..412
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 54
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT ACT_SITE 105
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 57
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 101
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 103
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 104..107
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 126
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 127
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 252
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 280
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 324..326
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 512
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 549
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 550
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 552
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
SQ SEQUENCE 754 AA; 80131 MW; AEC969914F0C9ECB CRC64;
MIDTVEYAAT TPDQPQPFAE LGLREDEYQR VREILGRRPT DTELAMYSVM WSEHCSYKSS
KVHLRYFGET TTEEMRTGML AGIGENAGVV DIGDGWAVTF KVESHNHPSY VEPYQGAATG
VGGIVRDIMA MGARPVAVMD QLRFGAADAL DTRRVLDGVV RGIGGYGNSL GLPNIGGETV
FDSCYDGNPL VNALCVGVLR QEDLHLAFAS GAGNKIILFG ACTGLDGIGG VSVLASDTFD
AEGARKKLPS VQVGDPFMEK VLIECCLELY AGGLVIGIQD LGGAGLSCAT SELASAGDVG
MAIQLDTVPR RAKDMTPAEV FCSESQERMC AVVAPENVDA FLAVCRKWEV LATVIGEVTD
GDRLRITWHG ETVVDVPPRT VAHEGPVYQR PVSRPESQEA LNADSSKGLP RPVSGDELRA
TLLALLGSPH LCSRAFITEQ YDRYVRGNTV LAEHADAGVL RIDESTGRGI ALSTDASGRY
TRLDPYAGAQ LALAEAYRNV AVTGATPVAV TNCLNFGSPE DPGVMWQFAQ AVRGLADGCA
ALKIPVTGGN VSFYNQTGAV AILPTPVVGV LGVLDNVARR IHTSLGTEPG EILMLLGDTY
DEFDGSVWAQ VMAGHLGGLP PMVDLAREKL LAEVLSSASR DELVSAAHDL SEGGLAQAIV
ESALAGETGC RIALPEDADP FVMLFSESAG RVLVAVPRPE ESRFRSMCEA RGLPAMRIGV
VDQGSDSIEV RGQFTVSLAE LRMTFEAVLP RFFG
