ID A0A097EI99_9SPHN Unreviewed; 351 AA.
AC A0A097EI99;
DT 07-JAN-2015, integrated into UniProtKB/TrEMBL.
DT 07-JAN-2015, sequence version 1.
DT 24-JAN-2024, entry version 41.
DE RecName: Full=N5-carboxyaminoimidazole ribonucleotide synthase {ECO:0000256|HAMAP-Rule:MF_01928, ECO:0000256|RuleBase:RU361200};
DE Short=N5-CAIR synthase {ECO:0000256|HAMAP-Rule:MF_01928, ECO:0000256|RuleBase:RU361200};
DE EC=6.3.4.18 {ECO:0000256|HAMAP-Rule:MF_01928, ECO:0000256|RuleBase:RU361200};
DE AltName: Full=5-(carboxyamino)imidazole ribonucleotide synthetase {ECO:0000256|HAMAP-Rule:MF_01928, ECO:0000256|RuleBase:RU361200};
GN Name=purK {ECO:0000256|HAMAP-Rule:MF_01928,
GN ECO:0000256|RuleBase:RU361200};
GN ORFNames=MC45_14030 {ECO:0000313|EMBL:AIT07305.1};
OS Sphingomonas taxi.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingomonas.
OX NCBI_TaxID=1549858 {ECO:0000313|EMBL:AIT07305.1, ECO:0000313|Proteomes:UP000033200};
RN [1] {ECO:0000313|EMBL:AIT07305.1, ECO:0000313|Proteomes:UP000033200}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 55669 {ECO:0000313|EMBL:AIT07305.1,
RC ECO:0000313|Proteomes:UP000033200};
RA Zhou Y., Ma T., Liu T.;
RT "Using Illumina technology Improving SMRT sequencing Genome Assembly by
RT RASTools.";
RL Submitted (SEP-2014) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the ATP-dependent conversion of 5-aminoimidazole
CC ribonucleotide (AIR) and HCO(3)(-) to N5-carboxyaminoimidazole
CC ribonucleotide (N5-CAIR). {ECO:0000256|HAMAP-Rule:MF_01928}.
CC -!- FUNCTION: Catalyzes the ATP-dependent conversion of 5-aminoimidazole
CC ribonucleotide (AIR) and HCO(3)- to N5-carboxyaminoimidazole
CC ribonucleotide (N5-CAIR). {ECO:0000256|RuleBase:RU361200}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-amino-1-(5-phospho-beta-D-ribosyl)imidazole + ATP +
CC hydrogencarbonate = 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole +
CC ADP + 2 H(+) + phosphate; Xref=Rhea:RHEA:19317, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:17544, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:58730, ChEBI:CHEBI:137981, ChEBI:CHEBI:456216;
CC EC=6.3.4.18; Evidence={ECO:0000256|HAMAP-Rule:MF_01928,
CC ECO:0000256|RuleBase:RU361200};
CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5-
CC amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate from 5-amino-1-(5-
CC phospho-D-ribosyl)imidazole (N5-CAIR route): step 1/2.
CC {ECO:0000256|HAMAP-Rule:MF_01928, ECO:0000256|RuleBase:RU361200}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01928,
CC ECO:0000256|RuleBase:RU361200}.
CC -!- SIMILARITY: Belongs to the PurK/PurT family. {ECO:0000256|HAMAP-
CC Rule:MF_01928, ECO:0000256|RuleBase:RU361200}.
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DR EMBL; CP009571; AIT07305.1; -; Genomic_DNA.
DR RefSeq; WP_038664388.1; NZ_CP009571.1.
DR AlphaFoldDB; A0A097EI99; -.
DR STRING; 1549858.MC45_14030; -.
DR KEGG; stax:MC45_14030; -.
DR eggNOG; COG0026; Bacteria.
DR HOGENOM; CLU_011534_0_1_5; -.
DR UniPathway; UPA00074; UER00942.
DR Proteomes; UP000033200; Chromosome.
DR GO; GO:0034028; F:5-(carboxyamino)imidazole ribonucleotide synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:InterPro.
DR GO; GO:0004638; F:phosphoribosylaminoimidazole carboxylase activity; IEA:InterPro.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.20; -; 1.
DR Gene3D; 3.30.1490.20; ATP-grasp fold, A domain; 1.
DR Gene3D; 3.30.470.20; ATP-grasp fold, B domain; 1.
DR HAMAP; MF_01928; PurK; 1.
DR InterPro; IPR011761; ATP-grasp.
DR InterPro; IPR003135; ATP-grasp_carboxylate-amine.
DR InterPro; IPR013815; ATP_grasp_subdomain_1.
DR InterPro; IPR016185; PreATP-grasp_dom_sf.
DR InterPro; IPR005875; PurK.
DR InterPro; IPR040686; PurK_C.
DR InterPro; IPR011054; Rudment_hybrid_motif.
DR NCBIfam; TIGR01161; purK; 1.
DR PANTHER; PTHR11609:SF5; PHOSPHORIBOSYLAMINOIMIDAZOLE CARBOXYLASE; 1.
DR PANTHER; PTHR11609; PURINE BIOSYNTHESIS PROTEIN 6/7, PUR6/7; 1.
DR Pfam; PF02222; ATP-grasp; 1.
DR Pfam; PF17769; PurK_C; 1.
DR SUPFAM; SSF56059; Glutathione synthetase ATP-binding domain-like; 1.
DR SUPFAM; SSF52440; PreATP-grasp domain; 1.
DR SUPFAM; SSF51246; Rudiment single hybrid motif; 1.
DR PROSITE; PS50975; ATP_GRASP; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01928};
KW Ligase {ECO:0000256|HAMAP-Rule:MF_01928, ECO:0000256|RuleBase:RU361200};
KW Lyase {ECO:0000313|EMBL:AIT07305.1};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_01928, ECO:0000256|PROSITE-
KW ProRule:PRU00409};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_01928}; Reference proteome {ECO:0000313|Proteomes:UP000033200}.
FT DOMAIN 108..293
FT /note="ATP-grasp"
FT /evidence="ECO:0000259|PROSITE:PS50975"
FT BINDING 104
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01928"
FT BINDING 144
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01928"
FT BINDING 149..155
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01928"
FT BINDING 178..181
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01928"
FT BINDING 186
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01928"
FT BINDING 209
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01928"
FT BINDING 263..264
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01928"
SQ SEQUENCE 351 AA; 37383 MW; 3F727EF313B0FDC6 CRC64;
MLTPGSTIGI LGGGQLGRML AVAAAQLGYR THVLAPEADS VAAQTAASLT RADYHNRIVL
ADFAAACDVV TYEFENIALG PVEWLAERVP VHPHPRALAA AQERIAEKRF VERVGGRPAR
WAAVDSRETL IAALDHVGTP AVLKTARFGY DGKGQMRLHG PADADAAWEA IGGPAVLEAF
VDFSHEFSIL IARGQDGATV RYDPPQNVHV DAILRTSRVP APQPILDQAE EATALACRIA
AELDYVGVLA CEFFATADGP VFNEMAPRVH NSGHWTIEGA ETSQFENHIR AICGLPLGST
ALTGSAVALE NLIGDDAWQP ALTEPGAHLH LYGKGAARPG RKMGHVTRVQ R
//
