PURL_ACAM1
ID PURL_ACAM1 Reviewed; 783 AA.
AC B0C6R3;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 26-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 79.
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=AM1_2612;
OS Acaryochloris marina (strain MBIC 11017).
OC Bacteria; Cyanobacteria; Synechococcales; Acaryochloridaceae;
OC Acaryochloris.
OX NCBI_TaxID=329726;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MBIC 11017;
RX PubMed=18252824; DOI=10.1073/pnas.0709772105;
RA Swingley W.D., Chen M., Cheung P.C., Conrad A.L., Dejesa L.C., Hao J.,
RA Honchak B.M., Karbach L.E., Kurdoglu A., Lahiri S., Mastrian S.D.,
RA Miyashita H., Page L., Ramakrishna P., Satoh S., Sattley W.M., Shimada Y.,
RA Taylor H.L., Tomo T., Tsuchiya T., Wang Z.T., Raymond J., Mimuro M.,
RA Blankenship R.E., Touchman J.W.;
RT "Niche adaptation and genome expansion in the chlorophyll d-producing
RT cyanobacterium Acaryochloris marina.";
RL Proc. Natl. Acad. Sci. U.S.A. 105:2005-2010(2008).
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; CP000828; ABW27619.1; -; Genomic_DNA.
DR RefSeq; WP_012163073.1; NC_009925.1.
DR AlphaFoldDB; B0C6R3; -.
DR SMR; B0C6R3; -.
DR STRING; 329726.AM1_2612; -.
DR EnsemblBacteria; ABW27619; ABW27619; AM1_2612.
DR KEGG; amr:AM1_2612; -.
DR eggNOG; COG0046; Bacteria.
DR HOGENOM; CLU_003100_0_1_3; -.
DR OMA; FIEPYQG; -.
DR OrthoDB; 26038at2; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000000268; 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..783
FT /note="Phosphoribosylformylglycinamidine synthase subunit
FT PurL"
FT /id="PRO_1000080545"
FT REGION 1..22
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 50
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT ACT_SITE 96
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 53
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 92
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 94
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 95..98
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 117
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 118
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 242
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 270
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 314..316
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 524
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 561
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 562
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 564
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
SQ SEQUENCE 783 AA; 84126 MW; 8587EAA598D03B3F CRC64;
MASPGSSPFS PEEIATEGLK PEEYDDIVQR LGRHPNRAEL GMFGVMWSEH CCYKNSRPLL
SQFPTEGKHV LVGPGENAGV VDLGNGLQLA FKVESHNHPS AVEPFQGAAT GVGGILRDIF
TMGARPIAVL NSLRFGDLDD ARTRRLFSGV VAGIAHYGNC VGVPTVGGEV YFDPAYTGNP
LVNAMAMGLM ETAEIVKAGA SGVGNPVLYV GSTTGRDGMG GASFASAELD ATSEVEDRPA
VQVGDPFLEK SLIEACLEAF QTGAVVAAQD MGAAGLTCST AEMAEKGGVG IDLDLDLIPN
RETGMVPYEY LLSESQERML FVAEKGREQE LIDIFHRWGL QAVVAGSVIA EPIVKIRFQG
EVAAEIPATA LSDNTPIYKR EVLAEPPEYV QKAREWSCDR IPPGTAEGIE IQGKLNSWSD
ILLQLLQVPT IASKRWVYRQ YDHQVQNNTV VLPGDADATI VRLRPVAHQE TPDQGVDSKT
AVAATIDCNS RYVYLDPYEG AKMTVAEAAR NLSCVGAEPI AVTDNLNFGS PEKPIGYWQL
AEACRGLSEA CRHLQTPVTG GNVSLYNETF DADGQPQPIY PTPVIGMVGL VPDLTKTCVQ
GWQADGDLIY LLGIPLDVQS DLVTLGATEY LASIHHQVAG EPPHADLDLE AQVQATCRHG
IQQGWLHSAH DCAEGGVAVA LAESCISGQR GADIQVPTGS NRWDQVLFGE GGARIVISVS
ATHQAAWESY LQEHLPQYWQ QIGTVTTPNS ELTLTTNVHQ TLIKVRIEEA TQRWAQAIES
KLA
