ID TYPH_SALPA Reviewed; 440 AA. AC Q5PK22; DT 10-JAN-2006, integrated into UniProtKB/Swiss-Prot. DT 04-JAN-2005, sequence version 1. DT 27-MAR-2024, entry version 107. DE RecName: Full=Thymidine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01628}; DE EC=2.4.2.4 {ECO:0000255|HAMAP-Rule:MF_01628}; DE AltName: Full=TdRPase {ECO:0000255|HAMAP-Rule:MF_01628}; GN Name=deoA {ECO:0000255|HAMAP-Rule:MF_01628}; GN OrderedLocusNames=SPA4382; OS Salmonella paratyphi A (strain ATCC 9150 / SARB42). OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales; OC Enterobacteriaceae; Salmonella. OX NCBI_TaxID=295319; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 9150 / SARB42; RX PubMed=15531882; DOI=10.1038/ng1470; RA McClelland M., Sanderson K.E., Clifton S.W., Latreille P., Porwollik S., RA Sabo A., Meyer R., Bieri T., Ozersky P., McLellan M., Harkins C.R., RA Wang C., Nguyen C., Berghoff A., Elliott G., Kohlberg S., Strong C., Du F., RA Carter J., Kremizki C., Layman D., Leonard S., Sun H., Fulton L., Nash W., RA Miner T., Minx P., Delehaunty K., Fronick C., Magrini V., Nhan M., RA Warren W., Florea L., Spieth J., Wilson R.K.; RT "Comparison of genome degradation in Paratyphi A and Typhi, human- RT restricted serovars of Salmonella enterica that cause typhoid."; RL Nat. Genet. 36:1268-1274(2004). CC -!- FUNCTION: The enzymes which catalyze the reversible phosphorolysis of CC pyrimidine nucleosides are involved in the degradation of these CC compounds and in their utilization as carbon and energy sources, or in CC the rescue of pyrimidine bases for nucleotide synthesis. CC {ECO:0000255|HAMAP-Rule:MF_01628}. 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=2.4.2.4; CC Evidence={ECO:0000255|HAMAP-Rule:MF_01628}; CC -!- PATHWAY: Pyrimidine metabolism; dTMP biosynthesis via salvage pathway; CC dTMP from thymine: step 1/2. {ECO:0000255|HAMAP-Rule:MF_01628}. CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01628}. CC -!- SIMILARITY: Belongs to the thymidine/pyrimidine-nucleoside CC phosphorylase family. {ECO:0000255|HAMAP-Rule:MF_01628}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; CP000026; AAV80105.1; -; Genomic_DNA. DR RefSeq; WP_000477835.1; NC_006511.1. DR AlphaFoldDB; Q5PK22; -. DR SMR; Q5PK22; -. DR KEGG; spt:SPA4382; -. DR HOGENOM; CLU_025040_0_1_6; -. DR UniPathway; UPA00578; UER00638. DR Proteomes; UP000008185; Chromosome. DR GO; GO:0004645; F:1,4-alpha-oligoglucan phosphorylase activity; IEA:InterPro. DR GO; GO:0016154; F:pyrimidine-nucleoside phosphorylase activity; IEA:InterPro. DR GO; GO:0009032; F:thymidine phosphorylase activity; IEA:UniProtKB-UniRule. DR GO; GO:0006206; P:pyrimidine nucleobase metabolic process; IEA:InterPro. DR GO; GO:0046104; P:thymidine metabolic process; IEA:UniProtKB-UniRule. 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 HAMAP; MF_01628; Thymid_phosp; 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 InterPro; IPR013465; Thymidine_Pase. DR NCBIfam; TIGR02643; T_phosphoryl; 1. 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; Transferase. FT CHAIN 1..440 FT /note="Thymidine phosphorylase" FT /id="PRO_0000059062" SQ SEQUENCE 440 AA; 46988 MW; 498A8A49A81ACA84 CRC64; MFLAQEIIRK KRDGHALSDE EIRFFINGIR DNTISEGQIA ALAMTIFFHD MTMPERVSLT MAMRDSGTVL DWKSLNLNGP IVDKHSTGGV GDVTSLMLGP MVAACGGYVP MISGRGLGHT GGTLDKLEAI PGFDIFPDDN RFREIIQDVG VAIIGQTSSL APADKRFYAT RDITATVDSI PLITGSILAK KLAEGLDALV MDVKVGSGAF MPTYELSEAL AEAIVGVANG AGVRTTALLT DMNQVLASSA GNAVEVREAV QFLTGEYRNP RLFDVTMALC VEMLISGNLA KDDAEARAKL QAVLDNGKAA EVFGRMVAAQ KGPSDFVENY DKYLPTAMLS KAVYADTEGF ISAMDTRALG MAVVSMGGGR RQASDTIDYS VGFTDMARLG DSIDGQRPLA VIHAKDEASW QEAAKAVKAA IILDDKAPAS TPSVYRRITE //