DIM1_MACFA
ID DIM1_MACFA Reviewed; 313 AA.
AC Q95KJ0;
DT 13-DEC-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-2001, sequence version 1.
DT 03-AUG-2022, entry version 89.
DE RecName: Full=Probable dimethyladenosine transferase;
DE EC=2.1.1.183 {ECO:0000250|UniProtKB:Q9UNQ2};
DE AltName: Full=DIM1 dimethyladenosine transferase 1 homolog;
DE AltName: Full=DIM1 dimethyladenosine transferase 1-like;
DE AltName: Full=Probable 18S rRNA (adenine(1779)-N(6)/adenine(1780)-N(6))-dimethyltransferase;
DE AltName: Full=Probable 18S rRNA dimethylase;
DE AltName: Full=Probable S-adenosylmethionine-6-N',N'-adenosyl(rRNA) dimethyltransferase;
GN Name=DIMT1; Synonyms=DIMT1L; ORFNames=QtrA-10945;
OS Macaca fascicularis (Crab-eating macaque) (Cynomolgus monkey).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini;
OC Cercopithecidae; Cercopithecinae; Macaca.
OX NCBI_TaxID=9541;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Temporal cortex;
RA Osada N., Hida M., Kusuda J., Tanuma R., Iseki K., Hirai M., Terao K.,
RA Suzuki Y., Sugano S., Hashimoto K.;
RT "Isolation of full-length cDNA clones from macaque brain cDNA libraries.";
RL Submitted (APR-2001) to the EMBL/GenBank/DDBJ databases.
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 Involved in the pre-rRNA processing steps leading to small-subunit rRNA
CC production independently of its RNA-modifying catalytic activity.
CC {ECO:0000250|UniProtKB:Q9UNQ2}.
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 Evidence={ECO:0000250|UniProtKB:Q9UNQ2};
CC -!- SUBCELLULAR LOCATION: Nucleus, nucleoplasm
CC {ECO:0000250|UniProtKB:Q9UNQ2}. Nucleus, nucleolus
CC {ECO:0000250|UniProtKB:Q9UNQ2}.
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}.
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DR EMBL; AB060843; BAB46866.1; -; mRNA.
DR RefSeq; NP_001270420.1; NM_001283491.1.
DR AlphaFoldDB; Q95KJ0; -.
DR SMR; Q95KJ0; -.
DR STRING; 9541.XP_005557033.1; -.
DR GeneID; 102115642; -.
DR CTD; 27292; -.
DR eggNOG; KOG0820; Eukaryota.
DR OrthoDB; 963506at2759; -.
DR Proteomes; UP000233100; Unplaced.
DR GO; GO:0005730; C:nucleolus; ISS:UniProtKB.
DR GO; GO:0005654; C:nucleoplasm; IEA:UniProtKB-SubCell.
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:0000179; F:rRNA (adenine-N6,N6-)-dimethyltransferase activity; ISS:UniProtKB.
DR GO; GO:2000234; P:positive regulation of rRNA processing; ISS:UniProtKB.
DR GO; GO:0031167; P:rRNA methylation; ISS:UniProtKB.
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 2: Evidence at transcript level;
KW Methyltransferase; Nucleus; Reference proteome; RNA-binding;
KW rRNA processing; S-adenosyl-L-methionine; Transferase.
FT CHAIN 1..313
FT /note="Probable dimethyladenosine transferase"
FT /id="PRO_0000101466"
FT REGION 1..21
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 37
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 39
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 64
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 85
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 113
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT BINDING 128
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
SQ SEQUENCE 313 AA; 35221 MW; CB08294AB0847F08 CRC64;
MPKVKSGAIG RRRGRQEQRR ELKSAGGLMF NTGIGQHILK NPLIINSIID KAALRPTDVV
LEVGPGTGNM TVKLLEKAKK VVACELDPRL VAELRKRVQG TPVASKLQVL VGDVLKTDLP
FFDTCVANLP YQISSPFVFK LLLHRPFFRC AILMFQRELA LRLVAKPGDK LYCRLSINTQ
LLARVDHLMK VGKNNFRPPP KVESSVVRIE PKNPPPPINF QEWDGLVRIT FVRKNKTLSA
AFKSSAVQQL LEKNYRIHCS VHNIIIPEDF SIADKIQQIL TSTGFSDKRA RSMDIDDFIR
LLHGFNAEGI HFS
