ID A0A077JE40_9CYAN Unreviewed; 172 AA.
AC A0A077JE40;
DT 29-OCT-2014, integrated into UniProtKB/TrEMBL.
DT 29-OCT-2014, sequence version 1.
DT 24-JAN-2024, entry version 40.
DE RecName: Full=Adenine phosphoribosyltransferase {ECO:0000256|ARBA:ARBA00011893, ECO:0000256|HAMAP-Rule:MF_00004};
DE Short=APRT {ECO:0000256|HAMAP-Rule:MF_00004};
DE EC=2.4.2.7 {ECO:0000256|ARBA:ARBA00011893, ECO:0000256|HAMAP-Rule:MF_00004};
GN Name=apt {ECO:0000256|HAMAP-Rule:MF_00004,
GN ECO:0000313|EMBL:BAP17167.1};
GN ORFNames=ETSB_0294 {ECO:0000313|EMBL:BAP17167.1};
OS cyanobacterium endosymbiont of Epithemia turgida isolate EtSB Lake Yunoko.
OC Bacteria; Cyanobacteriota.
OX NCBI_TaxID=1228987 {ECO:0000313|EMBL:BAP17167.1, ECO:0000313|Proteomes:UP000031625};
RN [1] {ECO:0000313|EMBL:BAP17167.1, ECO:0000313|Proteomes:UP000031625}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ETSB Lake Yunoko {ECO:0000313|EMBL:BAP17167.1};
RX PubMed=25049384; DOI=10.1073/pnas.1405222111;
RA Nakayama T., Kamikawa R., Tanifuji G., Kashiyama Y., Ohkouchi N.,
RA Archibald J.M., Inagaki Y.;
RT "Complete genome of a nonphotosynthetic cyanobacterium in a diatom reveals
RT recent adaptations to an intracellular lifestyle.";
RL Proc. Natl. Acad. Sci. U.S.A. 111:11407-11412(2014).
CC -!- FUNCTION: Catalyzes a salvage reaction resulting in the formation of
CC AMP, that is energically less costly than de novo synthesis.
CC {ECO:0000256|ARBA:ARBA00003968, ECO:0000256|HAMAP-Rule:MF_00004}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=AMP + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate +
CC adenine; Xref=Rhea:RHEA:16609, ChEBI:CHEBI:16708, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:58017, ChEBI:CHEBI:456215; EC=2.4.2.7;
CC Evidence={ECO:0000256|ARBA:ARBA00000868, ECO:0000256|HAMAP-
CC Rule:MF_00004};
CC -!- PATHWAY: Purine metabolism; AMP biosynthesis via salvage pathway; AMP
CC from adenine: step 1/1. {ECO:0000256|ARBA:ARBA00004659,
CC ECO:0000256|HAMAP-Rule:MF_00004}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00004}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_00004}.
CC -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC family. {ECO:0000256|ARBA:ARBA00008391, ECO:0000256|HAMAP-
CC Rule:MF_00004}.
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DR EMBL; AP012549; BAP17167.1; -; Genomic_DNA.
DR RefSeq; WP_044105852.1; NZ_AP012549.1.
DR AlphaFoldDB; A0A077JE40; -.
DR STRING; 1228987.ETSB_0294; -.
DR KEGG; ceo:ETSB_0294; -.
DR HOGENOM; CLU_063339_3_0_3; -.
DR OrthoDB; 9803963at2; -.
DR UniPathway; UPA00588; UER00646.
DR Proteomes; UP000031625; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003999; F:adenine phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006168; P:adenine salvage; IEA:UniProtKB-UniRule.
DR GO; GO:0044209; P:AMP salvage; IEA:UniProtKB-UniPathway.
DR GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-KW.
DR CDD; cd06223; PRTases_typeI; 1.
DR Gene3D; 3.40.50.2020; -; 1.
DR HAMAP; MF_00004; Aden_phosphoribosyltr; 1.
DR InterPro; IPR005764; Ade_phspho_trans.
DR InterPro; IPR000836; PRibTrfase_dom.
DR InterPro; IPR029057; PRTase-like.
DR NCBIfam; TIGR01090; apt; 1.
DR PANTHER; PTHR32315; ADENINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR32315:SF3; ADENINE PHOSPHORIBOSYLTRANSFERASE; 1.
DR Pfam; PF00156; Pribosyltran; 1.
DR SUPFAM; SSF53271; PRTase-like; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00004};
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_00004};
KW Purine salvage {ECO:0000256|ARBA:ARBA00022726, ECO:0000256|HAMAP-
KW Rule:MF_00004};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00004}.
FT DOMAIN 37..154
FT /note="Phosphoribosyltransferase"
FT /evidence="ECO:0000259|Pfam:PF00156"
SQ SEQUENCE 172 AA; 19096 MW; 6D98BBB76C00975C CRC64;
MDIKALIRNI PDFPKPGVMF RDITTLLSNQ EGLRYTIDTL CQKCKHQSLL PDYVVGIESR
GFLFGVPLAY QLKAGFVPVR KPGKLPAAVH QVEYDLEYGT DKLEIHQDTL AAHHRVLIID
DLIATGGTAR ATVDLLEKIG CEVLGFAFII ELKALEGRQK LPAVPIVTLV DY
//