DIM1_KLULA
ID DIM1_KLULA Reviewed; 320 AA.
AC P78697; Q6CSJ1;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 27-SEP-2004, sequence version 3.
DT 03-AUG-2022, entry version 122.
DE RecName: Full=Dimethyladenosine transferase;
DE EC=2.1.1.183;
DE AltName: Full=18S rRNA (adenine(1779)-N(6)/adenine(1780)-N(6))-dimethyltransferase;
DE AltName: Full=18S rRNA dimethylase;
DE AltName: Full=S-adenosylmethionine-6-N', N'-adenosyl(rRNA) dimethyltransferase;
GN Name=DIM1; OrderedLocusNames=KLLA0D00594g;
OS Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 /
OS NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Kluyveromyces.
OX NCBI_TaxID=284590;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=9219342;
RX DOI=10.1002/(sici)1097-0061(19970630)13:8<777::aid-yea140>3.0.co;2-1;
RA Housen I., Demonte D., Lafontaine D., Vandenhaute J.;
RT "Cloning and characterization of the KlDIM1 gene from Kluyveromyces lactis
RT encoding the m2(6)A dimethylase of the 18S rRNA.";
RL Yeast 13:777-781(1997).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37;
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).
CC -!- FUNCTION: Specifically dimethylates two adjacent adenosines in the loop
CC of a conserved hairpin near the 3'-end of 18S rRNA in the 40S particle.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=adenosine(1779)/adenosine(1780) in 18S rRNA + 4 S-adenosyl-L-
CC methionine = 4 H(+) + N(6)-dimethyladenosine(1779)/N(6)-
CC dimethyladenosine(1780) in 18S rRNA + 4 S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:42780, Rhea:RHEA-COMP:10234, Rhea:RHEA-COMP:10236,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74411, ChEBI:CHEBI:74493; EC=2.1.1.183;
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. rRNA adenine N(6)-methyltransferase family.
CC {ECO:0000255|PROSITE-ProRule:PRU01026}.
CC -!- SEQUENCE CAUTION:
CC Sequence=CAA92586.1; Type=Frameshift; Evidence={ECO:0000305};
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DR EMBL; Z68294; CAA92586.1; ALT_FRAME; Genomic_DNA.
DR EMBL; CR382124; CAH00194.1; -; Genomic_DNA.
DR PIR; T09625; T09625.
DR RefSeq; XP_453098.1; XM_453098.1.
DR AlphaFoldDB; P78697; -.
DR SMR; P78697; -.
DR STRING; 28985.XP_453098.1; -.
DR EnsemblFungi; CAH00194; CAH00194; KLLA0_D00594g.
DR GeneID; 2893296; -.
DR KEGG; kla:KLLA0_D00594g; -.
DR eggNOG; KOG0820; Eukaryota.
DR HOGENOM; CLU_041220_2_0_1; -.
DR InParanoid; P78697; -.
DR OMA; VNAQMWA; -.
DR BRENDA; 2.1.1.183; 2825.
DR Proteomes; UP000000598; Chromosome D.
DR GO; GO:0030688; C:preribosome, small subunit precursor; IEA:EnsemblFungi.
DR GO; GO:0052909; F:18S rRNA (adenine(1779)-N(6)/adenine(1780)-N(6))-dimethyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR GO; GO:0000462; P:maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA); IEA:EnsemblFungi.
DR Gene3D; 3.40.50.150; -; 1.
DR InterPro; IPR001737; KsgA/Erm.
DR InterPro; IPR020596; rRNA_Ade_Mease_Trfase_CS.
DR InterPro; IPR020598; rRNA_Ade_methylase_Trfase_N.
DR InterPro; IPR011530; rRNA_adenine_dimethylase.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR PANTHER; PTHR11727; PTHR11727; 1.
DR Pfam; PF00398; RrnaAD; 1.
DR SMART; SM00650; rADc; 1.
DR SUPFAM; SSF53335; SSF53335; 1.
DR TIGRFAMs; TIGR00755; ksgA; 1.
DR PROSITE; PS01131; RRNA_A_DIMETH; 1.
DR PROSITE; PS51689; SAM_RNA_A_N6_MT; 1.
PE 3: Inferred from homology;
KW Methyltransferase; Reference proteome; RNA-binding; rRNA processing;
KW S-adenosyl-L-methionine; Transferase.
FT CHAIN 1..320
FT /note="Dimethyladenosine transferase"
FT /id="PRO_0000101461"
FT BINDING 38
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 40
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 65
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 86
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 114
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 129
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT CONFLICT 248
FT /note="V -> D (in Ref. 1; CAA92586)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 320 AA; 35763 MW; FF5150C93E8D9AE5 CRC64;
MGKAVKKKYS GASSGGKEVD AEKHLTTVFK FNTDLGQHIL KNPLVAQGIV DKAQIKPSDI
VLEIGPGTGN LTVRILEQAR KVVAVEFDPR MAAELTKRVH GTPVEKKLEI LLGDFMKTEL
PYFDVCISNT PYQISSPLVF KLINQPKPPR VSILMFQREF AMRLLARPGD SLYCRLSANV
QMWANVTHIM KVGKNNFRPP PKVESSVVRI EIKNPRPQVD FNEWDGLLRI VFVRKNRTIA
AGFKSTTVLE ILEKNYKAFL ATQSAVPTTS SGDSLINEVK EKIEQVLSET GLAEKRAGKC
DQTDFLKLLY GFHQVGIHFA
