ID TYPH_SINFN Reviewed; 438 AA. AC C3MBH0; DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot. DT 16-JUN-2009, sequence version 1. DT 27-MAR-2024, entry version 90. 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=NGR_c34550; OS Sinorhizobium fredii (strain NBRC 101917 / NGR234). OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales; OC Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium. OX NCBI_TaxID=394; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=NBRC 101917 / NGR234; RX PubMed=19376903; DOI=10.1128/aem.00515-09; RA Schmeisser C., Liesegang H., Krysciak D., Bakkou N., Le Quere A., RA Wollherr A., Heinemeyer I., Morgenstern B., Pommerening-Roeser A., RA Flores M., Palacios R., Brenner S., Gottschalk G., Schmitz R.A., RA Broughton W.J., Perret X., Strittmatter A.W., Streit W.R.; RT "Rhizobium sp. strain NGR234 possesses a remarkable number of secretion RT systems."; RL Appl. Environ. Microbiol. 75:4035-4045(2009). 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; CP001389; ACP27179.1; -; Genomic_DNA. DR RefSeq; WP_012709926.1; NC_012587.1. DR RefSeq; YP_002827932.1; NC_012587.1. DR AlphaFoldDB; C3MBH0; -. DR SMR; C3MBH0; -. DR STRING; 394.NGR_c34550; -. DR KEGG; rhi:NGR_c34550; -. DR PATRIC; fig|394.7.peg.6302; -. DR eggNOG; COG0213; Bacteria. DR HOGENOM; CLU_025040_0_1_5; -. DR OrthoDB; 9763887at2; -. DR UniPathway; UPA00578; UER00638. DR Proteomes; UP000001054; 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; Reference proteome; Transferase. FT CHAIN 1..438 FT /note="Thymidine phosphorylase" FT /id="PRO_1000186264" SQ SEQUENCE 438 AA; 46265 MW; E05614750BF93B43 CRC64; MALLPQEVIR KKRDGGRLDR AEIADFVSGL ADGSISEGQV AAFAMATWFS GMNRDECVAL TLAMRDSGDI LDWSEFGRPI VDKHSTGGVG DNVSLMLAPI VAACGPNVPM ISGRGLGHTG GTLDKLESIP GYNIQPSPEL FRQIVDEVGC AIIGQTANLA PADKRLYAIR DVTATVDSVP LITASILSKK LAAGLQSLVL DVKLGNGSFM TDARATKTLA RSLVDVANGA GVNTLALITD MNEPLADAVG NALEVENCLA YLRGEKSGTR LDQVVMAFAA EMLVAARMAA HPAAGEAMAR QALESGDAME RFALMVHRLG GPADFVDRSE AYLEKAPAVV IVPANRDGYL AACETRELGM AVIALGGGRT RPDDRIDHRV GLAGLKPLGT KVERGEPIAF VHAADRQQAE AVRDRIAGFY AIADERPASR PVIVSRIT //