ID Q5KXI9_GEOKA Unreviewed; 433 AA.
AC Q5KXI9;
DT 01-FEB-2005, integrated into UniProtKB/TrEMBL.
DT 01-FEB-2005, sequence version 1.
DT 27-MAR-2024, entry version 99.
DE RecName: Full=Pyrimidine-nucleoside phosphorylase {ECO:0000256|ARBA:ARBA00014680};
DE EC=2.4.2.2 {ECO:0000256|ARBA:ARBA00011889};
GN OrderedLocusNames=GK2312 {ECO:0000313|EMBL:BAD76597.1};
OS Geobacillus kaustophilus (strain HTA426).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Geobacillus;
OC Geobacillus thermoleovorans group.
OX NCBI_TaxID=235909 {ECO:0000313|EMBL:BAD76597.1, ECO:0000313|Proteomes:UP000001172};
RN [1] {ECO:0000313|EMBL:BAD76597.1, ECO:0000313|Proteomes:UP000001172}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HTA426 {ECO:0000313|EMBL:BAD76597.1,
RC ECO:0000313|Proteomes:UP000001172};
RX PubMed=15576355; DOI=10.1093/nar/gkh970;
RA Takami H., Takaki Y., Chee G.J., Nishi S., Shimamura S., Suzuki H.,
RA Matsui S., Uchiyama I.;
RT "Thermoadaptation trait revealed by the genome sequence of thermophilic
RT Geobacillus kaustophilus.";
RL Nucleic Acids Res. 32:6292-6303(2004).
CC -!- FUNCTION: Catalyzes phosphorolysis of the pyrimidine nucleosides
CC uridine, thymidine and 2'-deoxyuridine with the formation of the
CC corresponding pyrimidine base and ribose-1-phosphate.
CC {ECO:0000256|ARBA:ARBA00003877}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2'-deoxyuridine + phosphate = 2-deoxy-alpha-D-ribose 1-
CC phosphate + uracil; Xref=Rhea:RHEA:22824, ChEBI:CHEBI:16450,
CC ChEBI:CHEBI:17568, ChEBI:CHEBI:43474, ChEBI:CHEBI:57259; EC=2.4.2.2;
CC Evidence={ECO:0000256|ARBA:ARBA00001066};
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:0000256|ARBA:ARBA00000722};
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:0000256|ARBA:ARBA00001004};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000256|ARBA:ARBA00001958};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738}.
CC -!- SIMILARITY: Belongs to the thymidine/pyrimidine-nucleoside
CC phosphorylase family. {ECO:0000256|ARBA:ARBA00006915}.
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DR EMBL; BA000043; BAD76597.1; -; Genomic_DNA.
DR RefSeq; WP_011231794.1; NC_006510.1.
DR AlphaFoldDB; Q5KXI9; -.
DR STRING; 235909.GK2312; -.
DR KEGG; gka:GK2312; -.
DR PATRIC; fig|235909.7.peg.2472; -.
DR eggNOG; COG0213; Bacteria.
DR HOGENOM; CLU_025040_0_1_9; -.
DR Proteomes; UP000001172; Chromosome.
DR GO; GO:0004645; F:1,4-alpha-oligoglucan phosphorylase activity; IEA:InterPro.
DR GO; GO:0047847; F:deoxyuridine phosphorylase activity; IEA:RHEA.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0016154; F:pyrimidine-nucleoside phosphorylase activity; IEA:UniProtKB-EC.
DR GO; GO:0009032; F:thymidine phosphorylase activity; IEA:RHEA.
DR GO; GO:0004850; F:uridine phosphorylase activity; IEA:RHEA.
DR GO; GO:0006206; P:pyrimidine nucleobase metabolic process; IEA:InterPro.
DR GO; GO:0006213; P:pyrimidine nucleoside metabolic process; IEA:InterPro.
DR Gene3D; 3.40.1030.10; Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain; 1.
DR Gene3D; 3.90.1170.30; Pyrimidine nucleoside phosphorylase-like, C-terminal domain; 1.
DR InterPro; IPR000312; Glycosyl_Trfase_fam3.
DR InterPro; IPR017459; Glycosyl_Trfase_fam3_N_dom.
DR InterPro; IPR036320; Glycosyl_Trfase_fam3_N_dom_sf.
DR InterPro; IPR035902; Nuc_phospho_transferase.
DR InterPro; IPR036566; PYNP-like_C_sf.
DR InterPro; IPR013102; PYNP_C.
DR InterPro; IPR018090; Pyrmidine_PPas_bac/euk.
DR InterPro; IPR017872; Pyrmidine_PPase_CS.
DR InterPro; IPR000053; Thymidine/pyrmidine_PPase.
DR NCBIfam; TIGR02644; Y_phosphoryl; 1.
DR PANTHER; PTHR10515; THYMIDINE PHOSPHORYLASE; 1.
DR PANTHER; PTHR10515:SF0; THYMIDINE PHOSPHORYLASE; 1.
DR Pfam; PF02885; Glycos_trans_3N; 1.
DR Pfam; PF00591; Glycos_transf_3; 1.
DR Pfam; PF07831; PYNP_C; 1.
DR PIRSF; PIRSF000478; TP_PyNP; 1.
DR SMART; SM00941; PYNP_C; 1.
DR SUPFAM; SSF52418; Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain; 1.
DR SUPFAM; SSF47648; Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain; 1.
DR SUPFAM; SSF54680; Pyrimidine nucleoside phosphorylase C-terminal domain; 1.
DR PROSITE; PS00647; THYMID_PHOSPHORYLASE; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676,
KW ECO:0000313|EMBL:BAD76597.1};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Potassium {ECO:0000256|ARBA:ARBA00022958};
KW Reference proteome {ECO:0000313|Proteomes:UP000001172};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000313|EMBL:BAD76597.1}.
FT DOMAIN 345..418
FT /note="Pyrimidine nucleoside phosphorylase C-terminal"
FT /evidence="ECO:0000259|SMART:SM00941"
SQ SEQUENCE 433 AA; 46116 MW; F82E964E5CA7276F CRC64;
MRMVDLIAKK RDGKALTKEE IEWIVRGYTN GNIPDYQMSA LAMAIYFRGM TEEETAALTM
AMVHSGEMLD LSSIRGVKVD KHSTGGVGDT TTLVLGPLVA SVGVPVAKMS GRGLGHTGGT
IDKLESVPGF HVEISKDEFI RLVNENRIAI IGQTGDLTPA DKKLYALRDV TATVNSIPLI
ASSIMSKKIA AGADAIVLDV KTGAGAFMKE LDEARRLARA MVDIGKRVGR RTMAVISDMS
QPLGYAVGNA LEVKEAIETL KGNGPHDLTE LCLTLGSHMV YLAEKAPSLD EARRLLEEAI
RSGAAIAAFK TFLAAQGGDA SVVDDLDKLP KAAYTSTVTA AADGYVAEMA ADDIGTAAMW
LGAGRAKKED MIDLAVGIVL HKKIGDRVQK GEALATIHSN RPDVLDVKEK IEAAIRLSPQ
PVARPPLIYE TIV
//
