ID TYPH_SINMW Reviewed; 438 AA. AC A6UET3; DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot. DT 21-AUG-2007, sequence version 1. DT 27-MAR-2024, entry version 89. 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=Smed_3342; OS Sinorhizobium medicae (strain WSM419) (Ensifer medicae). OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales; OC Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium. OX NCBI_TaxID=366394; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=WSM419; RG US DOE Joint Genome Institute; RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E., RA Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Reeve W.G., RA Richardson P.; RT "Complete sequence of Sinorhizobium medicae WSM419 chromosome."; RL Submitted (JUN-2007) to the EMBL/GenBank/DDBJ databases. 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; CP000738; ABR62163.1; -; Genomic_DNA. DR RefSeq; WP_012067544.1; NC_009636.1. DR RefSeq; YP_001328998.1; NC_009636.1. DR AlphaFoldDB; A6UET3; -. DR SMR; A6UET3; -. DR STRING; 366394.Smed_3342; -. DR GeneID; 61610893; -. DR KEGG; smd:Smed_3342; -. DR PATRIC; fig|366394.8.peg.6588; -. DR eggNOG; COG0213; Bacteria. DR HOGENOM; CLU_025040_0_1_5; -. DR OrthoDB; 9763887at2; -. DR UniPathway; UPA00578; UER00638. DR Proteomes; UP000001108; 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..438 FT /note="Thymidine phosphorylase" FT /id="PRO_1000069677" SQ SEQUENCE 438 AA; 45990 MW; 2421291204D24E2F CRC64; MAMLPQEVIR KKRDGGRLVP AEIAGFIEGL ADGSISEGQA AAFAMAVWFS GMSRDECVAL TLAMRDSGET LDWGEFGRPV VDKHSTGGVG DNVSLMLAPI VAACGPVVPM ISGRGLGHTG GTLDKLESIP GYNIQPSPEL FRRVVDEVGC AIIGQTANLA PADKRLYAIR DVTATVDSVP LITASILSKK LAAGLQSLVL DVKLGNGSFM TDPAETEILA RSLVEVANGA GVRTSALITD MNEPLADAAG NALEVENCLA YLSGKKAGTR LDRVVMAFAA EMLAAAGVSA HKAEGEAMAR RALESGEALE RFGLMVHRLG GPADFVERPE AYLERAPAIV PVAAARDGYL AACETRELGM AVIALGGGRR RPDDRIDHRV GLAGLRPLRT KVEKGEPIAF VHGADRDQAE AVAKRVATLY AIAEEAPAQR PVIASRLV //