ID B9R7Y4_RICCO Unreviewed; 591 AA.
AC B9R7Y4;
DT 24-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 24-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 69.
DE RecName: Full=Bifunctional dihydrofolate reductase-thymidylate synthase {ECO:0000256|PIRNR:PIRNR000389};
GN ORFNames=RCOM_1595270 {ECO:0000313|EMBL:EEF52614.1};
OS Ricinus communis (Castor bean).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; fabids; Malpighiales; Euphorbiaceae; Acalyphoideae; Acalypheae;
OC Ricinus.
OX NCBI_TaxID=3988 {ECO:0000313|Proteomes:UP000008311};
RN [1] {ECO:0000313|Proteomes:UP000008311}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. Hale {ECO:0000313|Proteomes:UP000008311};
RX PubMed=20729833; DOI=10.1038/nbt.1674;
RA Chan A.P., Crabtree J., Zhao Q., Lorenzi H., Orvis J., Puiu D.,
RA Melake-Berhan A., Jones K.M., Redman J., Chen G., Cahoon E.B., Gedil M.,
RA Stanke M., Haas B.J., Wortman J.R., Fraser-Liggett C.M., Ravel J.,
RA Rabinowicz P.D.;
RT "Draft genome sequence of the oilseed species Ricinus communis.";
RL Nat. Biotechnol. 28:951-956(2010).
CC -!- FUNCTION: Bifunctional enzyme. Involved in de novo dTMP biosynthesis.
CC Key enzyme in folate metabolism. Can play two different roles depending
CC on the source of dihydrofolate: de novo synthesis of tetrahydrofolate
CC or recycling of the dihydrofolate released as one of the end products
CC of the TS catalyzed reaction. Catalyzes an essential reaction for de
CC novo glycine and purine synthesis, DNA precursor synthesis, and for the
CC conversion of dUMP to dTMP. {ECO:0000256|ARBA:ARBA00024992}.
CC -!- PATHWAY: Cofactor biosynthesis; tetrahydrofolate biosynthesis; 5,6,7,8-
CC tetrahydrofolate from 7,8-dihydrofolate: step 1/1.
CC {ECO:0000256|ARBA:ARBA00004903, ECO:0000256|PIRNR:PIRNR000389}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the thymidylate
CC synthase family. {ECO:0000256|PIRNR:PIRNR000389}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the dihydrofolate
CC reductase family. {ECO:0000256|PIRNR:PIRNR000389}.
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DR EMBL; EQ973772; EEF52614.1; -; Genomic_DNA.
DR AlphaFoldDB; B9R7Y4; -.
DR STRING; 3988.B9R7Y4; -.
DR eggNOG; KOG0673; Eukaryota.
DR eggNOG; KOG1324; Eukaryota.
DR InParanoid; B9R7Y4; -.
DR UniPathway; UPA00077; UER00158.
DR Proteomes; UP000008311; Unassembled WGS sequence.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0005739; C:mitochondrion; IBA:GO_Central.
DR GO; GO:0004146; F:dihydrofolate reductase activity; IBA:GO_Central.
DR GO; GO:0004799; F:thymidylate synthase activity; IBA:GO_Central.
DR GO; GO:0006231; P:dTMP biosynthetic process; IBA:GO_Central.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0046654; P:tetrahydrofolate biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd00209; DHFR; 1.
DR CDD; cd00351; TS_Pyrimidine_HMase; 1.
DR Gene3D; 3.40.430.10; Dihydrofolate Reductase, subunit A; 1.
DR Gene3D; 3.30.572.10; Thymidylate synthase/dCMP hydroxymethylase domain; 1.
DR HAMAP; MF_00008; Thymidy_synth_bact; 1.
DR InterPro; IPR024072; DHFR-like_dom_sf.
DR InterPro; IPR012262; DHFR-TS.
DR InterPro; IPR017925; DHFR_CS.
DR InterPro; IPR001796; DHFR_dom.
DR InterPro; IPR045097; Thymidate_synth/dCMP_Mease.
DR InterPro; IPR023451; Thymidate_synth/dCMP_Mease_dom.
DR InterPro; IPR036926; Thymidate_synth/dCMP_Mease_sf.
DR InterPro; IPR000398; Thymidylate_synthase.
DR NCBIfam; TIGR03284; thym_sym; 1.
DR PANTHER; PTHR11548:SF2; THYMIDYLATE SYNTHASE; 1.
DR PANTHER; PTHR11548; THYMIDYLATE SYNTHASE 1; 1.
DR Pfam; PF00186; DHFR_1; 1.
DR Pfam; PF00303; Thymidylat_synt; 1.
DR PIRSF; PIRSF000389; DHFR-TS; 1.
DR PRINTS; PR00108; THYMDSNTHASE.
DR SUPFAM; SSF53597; Dihydrofolate reductase-like; 1.
DR SUPFAM; SSF55831; Thymidylate synthase/dCMP hydroxymethylase; 1.
DR PROSITE; PS00075; DHFR_1; 1.
DR PROSITE; PS51330; DHFR_2; 1.
PE 3: Inferred from homology;
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603,
KW ECO:0000256|PIRNR:PIRNR000389}; NADP {ECO:0000256|ARBA:ARBA00022857};
KW Nucleotide biosynthesis {ECO:0000256|PIRNR:PIRNR000389};
KW One-carbon metabolism {ECO:0000256|ARBA:ARBA00022563,
KW ECO:0000256|PIRNR:PIRNR000389};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|PIRNR:PIRNR000389};
KW Reference proteome {ECO:0000313|Proteomes:UP000008311};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR000389}.
FT DOMAIN 86..263
FT /note="DHFR"
FT /evidence="ECO:0000259|PROSITE:PS51330"
FT ACT_SITE 470
FT /evidence="ECO:0000256|PIRSR:PIRSR000389-1"
SQ SEQUENCE 591 AA; 66644 MW; 3BDCC6A10AEF4B2B CRC64;
MYGKIRLAFR RYLDFDAAML TRVLLSSCKN SFWNSSYLSV AVTRLQIVSC ESPKWRSYRR
LSVMSGDVSI GIPRGNANMH LDRNRRYQVV VAATRDMGIG KDGKLPWRLP SDLKFFKELT
LTTSSPGKRN AVVMGRKTWE SIPLKYRPLP GRLNIVLTCS GGCDITTAED VLTCGSIPSA
LELLAEAPYS FLIEKVFFIG GGQILRKTIN APGCDAIHIT EIETSIECDT FIPVIDFSLF
HPWYSSLPIV ENNVRYSFAT YVRVKNSENG TLSKSASANG NLSSNTFEVK NFTFLPSIIY
KKHDEYMYLR LAEQIISNGT LKDDRTGTGT LSKFGGQMQY NLRKSFPLLT TKRVFWMGVV
EELLWFISGS TNAKVLQEKG IHIWDGNASR DYLDSIGLKD IEESDLGPIY GFQWRYFGAR
YTDMHADYSG QGFDQLVDVI DKIKSKPDDR CIILRSWNPS DLKLMAFPPC HMFAQFYVAN
GELSCQMYQR SADIGLGVPF NIAFYALLTC IIAHVCALVP GDFIHLIGDA RVCTTHIGPL
QKQLQKLPTP FPILRINPAK KDIDSFEASD FQLIGYDPHE YIDMKNLSVD L
//
