DXO_CANGA
ID DXO_CANGA Reviewed; 400 AA.
AC Q6FWY5;
DT 19-SEP-2006, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 03-AUG-2022, entry version 96.
DE RecName: Full=Decapping nuclease RAI1 {ECO:0000305};
DE Short=CgRai1 {ECO:0000303|PubMed:26101253};
DE EC=3.6.1.- {ECO:0000269|PubMed:26101253};
DE AltName: Full=NAD-capped RNA hydrolase RAI1 {ECO:0000305};
DE Short=DeNADding enzyme RAI1 {ECO:0000305};
DE EC=3.6.1.- {ECO:0000250|UniProtKB:O13836};
GN Name=RAI1 {ECO:0000303|PubMed:26101253}; OrderedLocusNames=CAGL0C01925g;
OS Candida glabrata (strain ATCC 2001 / CBS 138 / JCM 3761 / NBRC 0622 / NRRL
OS Y-65) (Yeast) (Torulopsis glabrata).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Nakaseomyces;
OC Nakaseomyces/Candida clade.
OX NCBI_TaxID=284593;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 2001 / CBS 138 / JCM 3761 / NBRC 0622 / NRRL Y-65;
RX PubMed=15229592; DOI=10.1038/nature02579;
RA Dujon B., Sherman D., Fischer G., Durrens P., Casaregola S., Lafontaine I.,
RA de Montigny J., Marck C., Neuveglise C., Talla E., Goffard N., Frangeul L.,
RA Aigle M., Anthouard V., Babour A., Barbe V., Barnay S., Blanchin S.,
RA Beckerich J.-M., Beyne E., Bleykasten C., Boisrame A., Boyer J.,
RA Cattolico L., Confanioleri F., de Daruvar A., Despons L., Fabre E.,
RA Fairhead C., Ferry-Dumazet H., Groppi A., Hantraye F., Hennequin C.,
RA Jauniaux N., Joyet P., Kachouri R., Kerrest A., Koszul R., Lemaire M.,
RA Lesur I., Ma L., Muller H., Nicaud J.-M., Nikolski M., Oztas S.,
RA Ozier-Kalogeropoulos O., Pellenz S., Potier S., Richard G.-F.,
RA Straub M.-L., Suleau A., Swennen D., Tekaia F., Wesolowski-Louvel M.,
RA Westhof E., Wirth B., Zeniou-Meyer M., Zivanovic Y., Bolotin-Fukuhara M.,
RA Thierry A., Bouchier C., Caudron B., Scarpelli C., Gaillardin C.,
RA Weissenbach J., Wincker P., Souciet J.-L.;
RT "Genome evolution in yeasts.";
RL Nature 430:35-44(2004).
RN [2]
RP FUNCTION.
RX PubMed=26101253; DOI=10.1093/nar/gkv620;
RA Wang V.Y., Jiao X., Kiledjian M., Tong L.;
RT "Structural and biochemical studies of the distinct activity profiles of
RT Rai1 enzymes.";
RL Nucleic Acids Res. 43:6596-6606(2015).
CC -!- FUNCTION: Decapping enzyme for NAD-capped RNAs: specifically hydrolyzes
CC the nicotinamide adenine dinucleotide (NAD) cap from a subset of RNAs
CC by removing the entire NAD moiety from the 5'-end of an NAD-capped RNA
CC (By similarity). The NAD-cap is present at the 5'-end of some RNAs and
CC snoRNAs. In contrast to the canonical 5'-end N7 methylguanosine (m7G)
CC cap, the NAD cap promotes mRNA decay (By similarity). Also acts as a
CC non-canonical decapping enzyme that removes the entire cap structure of
CC m7G capped or incompletely capped RNAs (PubMed:26101253). Has decapping
CC activity toward incomplete 5'-end m7G cap mRNAs such as unmethylated
CC 5'-end-capped RNA (cap0), while it has no activity toward 2'-O-ribose
CC methylated m7G cap (cap1) (By similarity).
CC {ECO:0000250|UniProtKB:O13836, ECO:0000250|UniProtKB:O70348,
CC ECO:0000250|UniProtKB:Q06349, ECO:0000269|PubMed:26101253}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end NAD(+)-phospho-ribonucleoside in mRNA + H2O = a 5'-
CC end phospho-ribonucleoside in mRNA + H(+) + NAD(+);
CC Xref=Rhea:RHEA:60880, Rhea:RHEA-COMP:15692, Rhea:RHEA-COMP:15698,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:138282, ChEBI:CHEBI:144029;
CC Evidence={ECO:0000250|UniProtKB:O13836};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:60881;
CC Evidence={ECO:0000250|UniProtKB:O13836};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end (N(7)-methyl 5'-triphosphoguanosine)-ribonucleoside-
CC ribonucleotide in mRNA + H2O = a (N(7)-methyl 5'-triphospho-
CC guanosine)-nucleoside + a 5'-end phospho-ribonucleoside in mRNA +
CC H(+); Xref=Rhea:RHEA:66928, Rhea:RHEA-COMP:15692, Rhea:RHEA-
CC COMP:17313, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:138282,
CC ChEBI:CHEBI:172876, ChEBI:CHEBI:172877;
CC Evidence={ECO:0000250|UniProtKB:P53063};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:66929;
CC Evidence={ECO:0000250|UniProtKB:P53063};
CC -!- COFACTOR:
CC Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC Evidence={ECO:0000250|UniProtKB:Q5AAT0};
CC Note=Divalent metal cation. {ECO:0000250|UniProtKB:Q5AAT0};
CC -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000250|UniProtKB:P53063}.
CC -!- SIMILARITY: Belongs to the DXO/Dom3Z family. {ECO:0000305}.
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DR EMBL; CR380949; CAG58165.1; -; Genomic_DNA.
DR RefSeq; XP_445259.1; XM_445259.1.
DR AlphaFoldDB; Q6FWY5; -.
DR SMR; Q6FWY5; -.
DR STRING; 5478.XP_445259.1; -.
DR EnsemblFungi; CAG58165; CAG58165; CAGL0C01925g.
DR GeneID; 2886817; -.
DR KEGG; cgr:CAGL0C01925g; -.
DR CGD; CAL0127586; CAGL0C01925g.
DR VEuPathDB; FungiDB:CAGL0C01925g; -.
DR eggNOG; KOG1982; Eukaryota.
DR HOGENOM; CLU_024877_4_1_1; -.
DR InParanoid; Q6FWY5; -.
DR OMA; MAYWGYK; -.
DR Proteomes; UP000002428; Chromosome C.
DR GO; GO:0090730; C:Las1 complex; IEA:EnsemblFungi.
DR GO; GO:0110103; C:RNA polymerase II termination complex; IEA:EnsemblFungi.
DR GO; GO:0030234; F:enzyme regulator activity; IEA:EnsemblFungi.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR GO; GO:1990174; F:phosphodiesterase decapping endonuclease activity; IEA:EnsemblFungi.
DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR GO; GO:0110152; F:RNA NAD-cap (NAD-forming) hydrolase activity; IEA:RHEA.
DR GO; GO:0034353; F:RNA pyrophosphohydrolase activity; IEA:EnsemblFungi.
DR GO; GO:0000448; P:cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA); IEA:EnsemblFungi.
DR GO; GO:0031087; P:deadenylation-independent decapping of nuclear-transcribed mRNA; IEA:EnsemblFungi.
DR GO; GO:0006397; P:mRNA processing; IEA:UniProtKB-KW.
DR GO; GO:0071035; P:nuclear polyadenylation-dependent rRNA catabolic process; IEA:EnsemblFungi.
DR GO; GO:1904595; P:positive regulation of termination of RNA polymerase II transcription; IEA:EnsemblFungi.
DR GO; GO:0030846; P:termination of RNA polymerase II transcription, poly(A)-coupled; IEA:EnsemblFungi.
DR InterPro; IPR013961; RAI1.
DR InterPro; IPR039039; RAI1-like_fam.
DR PANTHER; PTHR12395; PTHR12395; 1.
DR Pfam; PF08652; RAI1; 1.
PE 3: Inferred from homology;
KW Hydrolase; Metal-binding; mRNA processing; Nuclease; Nucleotide-binding;
KW Nucleus; Reference proteome; RNA-binding.
FT CHAIN 1..400
FT /note="Decapping nuclease RAI1"
FT /id="PRO_0000249829"
FT BINDING 177
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250|UniProtKB:O13836"
FT BINDING 226
FT /ligand="substrate"
FT /evidence="ECO:0000250|UniProtKB:O70348"
FT BINDING 228
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250|UniProtKB:O13836"
FT BINDING 246
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250|UniProtKB:O13836"
FT BINDING 247
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250|UniProtKB:O13836"
FT BINDING 248
FT /ligand="substrate"
FT /evidence="ECO:0000250|UniProtKB:O70348"
FT BINDING 272
FT /ligand="substrate"
FT /evidence="ECO:0000250|UniProtKB:O70348"
SQ SEQUENCE 400 AA; 46191 MW; B68549B0504FFE58 CRC64;
MGISANLFVN QKGTTTALKQ PKEIGYYSRN QTEEYLVSDD INLRYYYLPD QEIEHGIDLS
AGASKFRDVA KDFKDRCSLK GLLDTLMEYE KKKNKKSNVD IITFRGIMSK LIRASMEPPN
FNKVDLRIVS YDGQLFIKDV SDYNAATNES NSSGVNSRQQ AGTSRQQIDT YTGYKFEGIA
TLDKPLPYVE REVIEKRPRK ILNNGDEYIT VVRTGVGECK VVLGAEIDCI FDFKEEGKDN
LKHYTELKCS SQISTTNDVR RFEKKMFRAW LQCFLVGVPR VIYGFRDDQY MLKTVEEFST
EEIPVIIKAN NPTLGQSCLD AIKWYGLFTD WLLKIIPREQ SGNIRAYRLV YENNHLRLSE
IEEQDGEYSR YVLEDGILTP EFKEWRESLR VPSEETPKAD
