ID M9R483_9RHOB Unreviewed; 161 AA.
AC M9R483;
DT 26-JUN-2013, integrated into UniProtKB/TrEMBL.
DT 26-JUN-2013, sequence version 1.
DT 27-MAR-2024, entry version 52.
DE RecName: Full=N5-carboxyaminoimidazole ribonucleotide mutase {ECO:0000256|HAMAP-Rule:MF_01929, ECO:0000256|PIRNR:PIRNR001338};
DE Short=N5-CAIR mutase {ECO:0000256|HAMAP-Rule:MF_01929, ECO:0000256|PIRNR:PIRNR001338};
DE EC=5.4.99.18 {ECO:0000256|HAMAP-Rule:MF_01929, ECO:0000256|PIRNR:PIRNR001338};
DE AltName: Full=5-(carboxyamino)imidazole ribonucleotide mutase {ECO:0000256|HAMAP-Rule:MF_01929};
GN Name=purE {ECO:0000256|HAMAP-Rule:MF_01929,
GN ECO:0000313|EMBL:AGI66578.1};
GN ORFNames=OAN307_c08570 {ECO:0000313|EMBL:AGI66578.1};
OS Octadecabacter antarcticus 307.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Octadecabacter.
OX NCBI_TaxID=391626 {ECO:0000313|EMBL:AGI66578.1, ECO:0000313|Proteomes:UP000005307};
RN [1] {ECO:0000313|EMBL:AGI66578.1, ECO:0000313|Proteomes:UP000005307}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=307 {ECO:0000313|EMBL:AGI66578.1,
RC ECO:0000313|Proteomes:UP000005307};
RX PubMed=23671678;
RA Vollmers J., Voget S., Dietrich S., Gollnow K., Smits M., Meyer K.,
RA Brinkhoff T., Simon M., Daniel R.;
RT "Poles Apart: Arctic and Antarctic Octadecabacter strains Share High Genome
RT Plasticity and a New Type of Xanthorhodopsin.";
RL PLoS ONE 8:E63422-E63422(2013).
CC -!- FUNCTION: Catalyzes the conversion of N5-carboxyaminoimidazole
CC ribonucleotide (N5-CAIR) to 4-carboxy-5-aminoimidazole ribonucleotide
CC (CAIR). {ECO:0000256|HAMAP-Rule:MF_01929,
CC ECO:0000256|PIRNR:PIRNR001338}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole + H(+) = 5-
CC amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate;
CC Xref=Rhea:RHEA:13193, ChEBI:CHEBI:15378, ChEBI:CHEBI:58730,
CC ChEBI:CHEBI:77657; EC=5.4.99.18; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_01929, ECO:0000256|PIRNR:PIRNR001338};
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 2/2.
CC {ECO:0000256|HAMAP-Rule:MF_01929, ECO:0000256|PIRNR:PIRNR001338}.
CC -!- SIMILARITY: Belongs to the AIR carboxylase family. Class I subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_01929}.
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DR EMBL; CP003740; AGI66578.1; -; Genomic_DNA.
DR RefSeq; WP_015498621.1; NC_020911.1.
DR AlphaFoldDB; M9R483; -.
DR STRING; 391626.OAN307_c08570; -.
DR KEGG; oat:OAN307_c08570; -.
DR eggNOG; COG0041; Bacteria.
DR HOGENOM; CLU_094982_2_2_5; -.
DR OrthoDB; 9791908at2; -.
DR UniPathway; UPA00074; UER00943.
DR Proteomes; UP000005307; Chromosome.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0034023; F:5-(carboxyamino)imidazole ribonucleotide mutase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016829; F:lyase activity; IEA:UniProtKB-KW.
DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.1970; -; 1.
DR HAMAP; MF_01929; PurE_classI; 1.
DR InterPro; IPR033747; PurE_ClassI.
DR InterPro; IPR000031; PurE_dom.
DR InterPro; IPR024694; PurE_prokaryotes.
DR NCBIfam; TIGR01162; purE; 1.
DR PANTHER; PTHR23046:SF2; PHOSPHORIBOSYLAMINOIMIDAZOLE CARBOXYLASE; 1.
DR PANTHER; PTHR23046; PHOSPHORIBOSYLAMINOIMIDAZOLE CARBOXYLASE CATALYTIC SUBUNIT; 1.
DR Pfam; PF00731; AIRC; 1.
DR PIRSF; PIRSF001338; AIR_carboxylase; 1.
DR SMART; SM01001; AIRC; 1.
DR SUPFAM; SSF52255; N5-CAIR mutase (phosphoribosylaminoimidazole carboxylase, PurE); 1.
PE 3: Inferred from homology;
KW Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01929};
KW Lyase {ECO:0000313|EMBL:AGI66578.1}; Membrane {ECO:0000256|SAM:Phobius};
KW Purine biosynthesis {ECO:0000256|ARBA:ARBA00022755, ECO:0000256|HAMAP-
KW Rule:MF_01929}; Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 109..134
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 3..154
FT /note="PurE"
FT /evidence="ECO:0000259|SMART:SM01001"
FT BINDING 11
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01929,
FT ECO:0000256|PIRSR:PIRSR001338-1"
FT BINDING 14
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01929,
FT ECO:0000256|PIRSR:PIRSR001338-1"
FT BINDING 41
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01929,
FT ECO:0000256|PIRSR:PIRSR001338-1"
SQ SEQUENCE 161 AA; 16681 MW; 82966AB0332C09C8 CRC64;
MTPSVGIIMG SQSDWPTMRE AATILDELGV TYEAKIVSAH RTPDRLWSYG KDAAPRGLQV
IIAGAGGAAH LPGMMASKTR IPVIGVPVQT KALSGVDSLY SIVQMPKGFP VATMAIGAAG
AANAALLAAA ILALQDADLA QRLDAWRDAL SASIQDEPTD D
//