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PPNP2_PSYA2
ID   PPNP2_PSYA2             Reviewed;          94 AA.
AC   Q4FTI5;
DT   21-AUG-2007, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   25-MAY-2022, entry version 91.
DE   RecName: Full=Pyrimidine/purine nucleoside phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE            EC=2.4.2.1 {ECO:0000255|HAMAP-Rule:MF_01537};
DE            EC=2.4.2.2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Adenosine phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Cytidine phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Guanosine phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Inosine phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Thymidine phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Uridine phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Xanthosine phosphorylase 2 {ECO:0000255|HAMAP-Rule:MF_01537};
GN   Name=ppnP2 {ECO:0000255|HAMAP-Rule:MF_01537}; OrderedLocusNames=Psyc_0820;
OS   Psychrobacter arcticus (strain DSM 17307 / VKM B-2377 / 273-4).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Psychrobacter.
OX   NCBI_TaxID=259536;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17307 / VKM B-2377 / 273-4;
RX   PubMed=20154119; DOI=10.1128/aem.02101-09;
RA   Ayala-del-Rio H.L., Chain P.S., Grzymski J.J., Ponder M.A., Ivanova N.,
RA   Bergholz P.W., Di Bartolo G., Hauser L., Land M., Bakermans C.,
RA   Rodrigues D., Klappenbach J., Zarka D., Larimer F., Richardson P.,
RA   Murray A., Thomashow M., Tiedje J.M.;
RT   "The genome sequence of Psychrobacter arcticus 273-4, a psychroactive
RT   Siberian permafrost bacterium, reveals mechanisms for adaptation to low-
RT   temperature growth.";
RL   Appl. Environ. Microbiol. 76:2304-2312(2010).
CC   -!- FUNCTION: Catalyzes the phosphorolysis of diverse nucleosides, yielding
CC       D-ribose 1-phosphate and the respective free bases. Can use uridine,
CC       adenosine, guanosine, cytidine, thymidine, inosine and xanthosine as
CC       substrates. Also catalyzes the reverse reactions. {ECO:0000255|HAMAP-
CC       Rule:MF_01537}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a purine D-ribonucleoside + phosphate = a purine nucleobase +
CC         alpha-D-ribose 1-phosphate; Xref=Rhea:RHEA:19805, ChEBI:CHEBI:26386,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720, ChEBI:CHEBI:142355; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine + phosphate = adenine + alpha-D-ribose 1-phosphate;
CC         Xref=Rhea:RHEA:27642, ChEBI:CHEBI:16335, ChEBI:CHEBI:16708,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=cytidine + phosphate = alpha-D-ribose 1-phosphate + cytosine;
CC         Xref=Rhea:RHEA:52540, ChEBI:CHEBI:16040, ChEBI:CHEBI:17562,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=guanosine + phosphate = alpha-D-ribose 1-phosphate + guanine;
CC         Xref=Rhea:RHEA:13233, ChEBI:CHEBI:16235, ChEBI:CHEBI:16750,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=inosine + phosphate = alpha-D-ribose 1-phosphate +
CC         hypoxanthine; Xref=Rhea:RHEA:27646, ChEBI:CHEBI:17368,
CC         ChEBI:CHEBI:17596, ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + thymidine = 2-deoxy-alpha-D-ribose 1-phosphate +
CC         thymine; Xref=Rhea:RHEA:16037, ChEBI:CHEBI:17748, ChEBI:CHEBI:17821,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57259; EC=2.4.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + uridine = alpha-D-ribose 1-phosphate + uracil;
CC         Xref=Rhea:RHEA:24388, ChEBI:CHEBI:16704, ChEBI:CHEBI:17568,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + xanthosine = alpha-D-ribose 1-phosphate +
CC         xanthine; Xref=Rhea:RHEA:27638, ChEBI:CHEBI:17712, ChEBI:CHEBI:18107,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- SIMILARITY: Belongs to the nucleoside phosphorylase PpnP family.
CC       {ECO:0000255|HAMAP-Rule:MF_01537}.
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DR   EMBL; CP000082; AAZ18673.1; -; Genomic_DNA.
DR   RefSeq; WP_011280100.1; NC_007204.1.
DR   AlphaFoldDB; Q4FTI5; -.
DR   SMR; Q4FTI5; -.
DR   STRING; 259536.Psyc_0820; -.
DR   EnsemblBacteria; AAZ18673; AAZ18673; Psyc_0820.
DR   KEGG; par:Psyc_0820; -.
DR   eggNOG; COG3123; Bacteria.
DR   HOGENOM; CLU_157874_0_0_6; -.
DR   OMA; YHYICHF; -.
DR   OrthoDB; 1937865at2; -.
DR   Proteomes; UP000000546; Chromosome.
DR   GO; GO:0047975; F:guanosine phosphorylase activity; IEA:UniProtKB-EC.
DR   GO; GO:0004731; F:purine-nucleoside phosphorylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016154; F:pyrimidine-nucleoside phosphorylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009032; F:thymidine phosphorylase activity; IEA:UniProtKB-EC.
DR   GO; GO:0004850; F:uridine phosphorylase activity; IEA:UniProtKB-EC.
DR   Gene3D; 2.60.120.10; -; 1.
DR   HAMAP; MF_01537; Nucleos_phosphorylase_PpnP; 1.
DR   InterPro; IPR009664; Ppnp.
DR   InterPro; IPR014710; RmlC-like_jellyroll.
DR   InterPro; IPR011051; RmlC_Cupin_sf.
DR   PANTHER; PTHR36540; PTHR36540; 1.
DR   Pfam; PF06865; Ppnp; 1.
DR   SUPFAM; SSF51182; SSF51182; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Reference proteome; Transferase.
FT   CHAIN           1..94
FT                   /note="Pyrimidine/purine nucleoside phosphorylase 2"
FT                   /id="PRO_0000298715"
SQ   SEQUENCE   94 AA;  10366 MW;  0D234100F8B80F1C CRC64;
     MPSVNNYFDN KVTSIAFQTA TKPATVGVME IGDYEFGTSE FETMTVVSGA LTVKLPESDE
     WQTFNAGAQF TVDANQKFQV KVEVETAYLC TYGE
 
 
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