ID TYPH_PROMH Reviewed; 440 AA. AC B4EWA3; DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot. DT 23-SEP-2008, sequence version 1. DT 27-MAR-2024, entry version 97. 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=PMI2415; OS Proteus mirabilis (strain HI4320). OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales; OC Morganellaceae; Proteus. OX NCBI_TaxID=529507; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=HI4320; RX PubMed=18375554; DOI=10.1128/jb.01981-07; RA Pearson M.M., Sebaihia M., Churcher C., Quail M.A., Seshasayee A.S., RA Luscombe N.M., Abdellah Z., Arrosmith C., Atkin B., Chillingworth T., RA Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H., RA Rabbinowitsch E., Walker D., Whithead S., Thomson N.R., Rather P.N., RA Parkhill J., Mobley H.L.T.; RT "Complete genome sequence of uropathogenic Proteus mirabilis, a master of RT both adherence and motility."; RL J. Bacteriol. 190:4027-4037(2008). 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; AM942759; CAR44773.1; -; Genomic_DNA. DR RefSeq; WP_004245639.1; NC_010554.1. DR AlphaFoldDB; B4EWA3; -. DR SMR; B4EWA3; -. DR EnsemblBacteria; CAR44773; CAR44773; PMI2415. DR GeneID; 6802750; -. DR KEGG; pmr:PMI2415; -. DR eggNOG; COG0213; Bacteria. DR HOGENOM; CLU_025040_0_1_6; -. DR UniPathway; UPA00578; UER00638. DR Proteomes; UP000008319; 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_1000186263" SQ SEQUENCE 440 AA; 47502 MW; 8728104F696D1C99 CRC64; MFLAQEIIRK KRDGHPLTEE EIRFFINGVR DNTVSEGQIA ALAMTIYFHD MTMPERVALT LAMRDSGTVL NWKSLNLNGP IVDKHSTGGV GDVTSLMLGP MVAACGGYVP MISGRGLGHT GGTLDKLEAI PGFDIFPDDE KFRDIIRHVG VAIIGQTNSL APADKRFYAT RDITATVDSI PLITASILGK KLAEGLDALV MDVKVGSGAF MPTYQKSEEL AESIVQVANG AGCQTTALLT DMNEVLASSA GNAVEVREAV QFLTGEYRNP RLFEVTMALC VEMLVSGRLA DSRQQARQKL QDVLDNGKAA EVFARMVAAQ NGPTDFVENY NKYLPTAVLS KPVFAEKAGF VTEMDTRALG MSVVTLGGGR RKATDAIDYS VGLSEIAALG TEINTDTPLA MIHANSEKSW QEAAAEVRKA MVIGETKRET SPMVYRQVSE //