PURL_CERS4
ID PURL_CERS4 Reviewed; 720 AA.
AC Q3J273;
DT 30-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT 30-MAY-2006, sequence version 2.
DT 03-AUG-2022, entry version 93.
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};
GN OrderedLocusNames=RHOS4_15430, RSP_2951;
OS Cereibacter sphaeroides (strain ATCC 17023 / DSM 158 / JCM 6121 / CCUG
OS 31486 / LMG 2827 / NBRC 12203 / NCIMB 8253 / ATH 2.4.1.) (Rhodobacter
OS sphaeroides).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC Rhodobacteraceae; Cereibacter.
OX NCBI_TaxID=272943;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17023 / DSM 158 / JCM 6121 / CCUG 31486 / LMG 2827 / NBRC 12203
RC / NCIMB 8253 / ATH 2.4.1.;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Richardson P., Mackenzie C.,
RA Choudhary M., Larimer F., Hauser L.J., Land M., Donohue T.J., Kaplan S.;
RT "Complete sequence of chromosome 1 of Rhodobacter sphaeroides 2.4.1.";
RL Submitted (SEP-2005) 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: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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP000143; ABA79111.2; -; Genomic_DNA.
DR RefSeq; WP_023003631.1; NZ_CP030271.1.
DR RefSeq; YP_353012.2; NC_007493.2.
DR AlphaFoldDB; Q3J273; -.
DR SMR; Q3J273; -.
DR STRING; 272943.RSP_2951; -.
DR EnsemblBacteria; ABA79111; ABA79111; RSP_2951.
DR KEGG; rsp:RSP_2951; -.
DR PATRIC; fig|272943.9.peg.1889; -.
DR eggNOG; COG0046; Bacteria.
DR OMA; FIEPYQG; -.
DR UniPathway; UPA00074; UER00128.
DR Proteomes; UP000002703; Chromosome 1.
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..720
FT /note="Phosphoribosylformylglycinamidine synthase subunit
FT PurL"
FT /id="PRO_0000236662"
FT ACT_SITE 47
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT ACT_SITE 93
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 50
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 89
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 91
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 92..95
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 114
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 115
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 238
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 266
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 310..312
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 488
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 525
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 526
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
FT BINDING 528
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00420"
SQ SEQUENCE 720 AA; 75610 MW; 3C5DCFA9561E3747 CRC64;
MTEPEITPEL IAAHGLKPDE YQRILEIIGR APTFTELGIF SAMWNEHCSY KSSKKWLRTL
PTTGPQVICG PGENAGVVDI GDGQAVIFKM ESHNHPSYIE PYQGAATGVG GILRDVFTMG
ARPIAAMNAL SFGVPDHPKT AHIVKGVVEG IGGYGNAFGV PTVGGEVRFH RAYNGNCLVN
AFAAGLADAD RIFYSAASGV GMPVVYLGAK TGRDGVGGAT MASAEFDDTI EEKRPTVQVG
DPFTEKRLLE ACLELMASDS VISIQDMGAA GLTCSAVEMG DKGDLGIRLQ LDAVPQREAN
MTAYEMMLSE SQERMLMVLK PEKEAVARAI FEKWDLDFAI VGETIPEDRF LILHGNEVKA
DLPLKALSGT APEYDRPWIE TPAAAPLGAV PEVDPIEGLK ALIGSPSYAH KAWVWEQYDS
QVMADTVRAP GLGAGVVRVH GTPKALAFTS DVTPRYVKAN PFEGGKQAVA EAYRNLTAVG
AKPLATTDNM NFGNPEKPEI MGQFVGAIKG IGAAVAALDM PIVSGNVSLY NETDGVGILP
TPTIGAVGLL TSLDELIAGQ PEEGDLALVI GTTAGHLGQS ALLAEMFGRE EGDAPPVDLE
AEKRHGEFLR ANRKLVRAAA DLSDGGLALA AFEMAEAAGL GLTLTPSGTA ALFGEDQARY
LVACAPDRAE ALQAAAEAAG VPLQEVGRFG GATVTLAGAS APLADLSRLY RRAFAEAIGG
