ID A0A452SJ69_URSAM Unreviewed; 731 AA.
AC A0A452SJ69;
DT 08-MAY-2019, integrated into UniProtKB/TrEMBL.
DT 08-MAY-2019, sequence version 1.
DT 27-MAR-2024, entry version 23.
DE RecName: Full=tRNA (cytosine(34)-C(5))-methyltransferase {ECO:0000256|ARBA:ARBA00012629};
DE EC=2.1.1.203 {ECO:0000256|ARBA:ARBA00012629};
DE AltName: Full=NOL1/NOP2/Sun domain family member 2 {ECO:0000256|ARBA:ARBA00032770};
DE AltName: Full=mRNA cytosine C(5)-methyltransferase {ECO:0000256|ARBA:ARBA00032819};
DE AltName: Full=tRNA cytosine C(5)-methyltransferase {ECO:0000256|ARBA:ARBA00032179};
GN Name=NSUN2 {ECO:0000313|Ensembl:ENSUAMP00000032605.1};
OS Ursus americanus (American black bear) (Euarctos americanus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Laurasiatheria; Carnivora; Caniformia; Ursidae; Ursus.
OX NCBI_TaxID=9643 {ECO:0000313|Ensembl:ENSUAMP00000032605.1, ECO:0000313|Proteomes:UP000291022};
RN [1] {ECO:0000313|Proteomes:UP000291022}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Korstanje R., Srivastava A., Sarsani V.K., Sheehan S.M., Seger R.L.,
RA Barter M.E., Lindqvist C., Brody L.C., Mullikin J.C.;
RT "De novo assembly and RNA-Seq shows season-dependent expression and editing
RT in black bear kidneys.";
RL Submitted (JUN-2016) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSUAMP00000032605.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (SEP-2023) to UniProtKB.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a cytidine in mRNA + S-adenosyl-L-methionine = a 5-
CC methylcytidine in mRNA + H(+) + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:61464, Rhea:RHEA-COMP:15145, Rhea:RHEA-COMP:15826,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74483, ChEBI:CHEBI:82748;
CC Evidence={ECO:0000256|ARBA:ARBA00000377};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:61465;
CC Evidence={ECO:0000256|ARBA:ARBA00000377};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=cytidine(34) in tRNA precursor + S-adenosyl-L-methionine = 5-
CC methylcytidine(34) in tRNA precursor + H(+) + S-adenosyl-L-
CC homocysteine; Xref=Rhea:RHEA:42940, Rhea:RHEA-COMP:10291, Rhea:RHEA-
CC COMP:10295, ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74483, ChEBI:CHEBI:82748; EC=2.1.1.203;
CC Evidence={ECO:0000256|ARBA:ARBA00001128};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:42941;
CC Evidence={ECO:0000256|ARBA:ARBA00001128};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=cytidine(48) in tRNA + S-adenosyl-L-methionine = 5-
CC methylcytidine(48) in tRNA + H(+) + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:42948, Rhea:RHEA-COMP:10293, Rhea:RHEA-COMP:10297,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74483, ChEBI:CHEBI:82748;
CC Evidence={ECO:0000256|ARBA:ARBA00001405};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:42949;
CC Evidence={ECO:0000256|ARBA:ARBA00001405};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=cytidine(49) in tRNA + S-adenosyl-L-methionine = 5-
CC methylcytidine(49) in tRNA + H(+) + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:42952, Rhea:RHEA-COMP:10294, Rhea:RHEA-COMP:10385,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74483, ChEBI:CHEBI:82748;
CC Evidence={ECO:0000256|ARBA:ARBA00000276};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:42953;
CC Evidence={ECO:0000256|ARBA:ARBA00000276};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=cytidine(50) in tRNA + S-adenosyl-L-methionine = 5-
CC methylcytidine(50) in tRNA + H(+) + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:61488, Rhea:RHEA-COMP:15838, Rhea:RHEA-COMP:15839,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74483, ChEBI:CHEBI:82748;
CC Evidence={ECO:0000256|ARBA:ARBA00001828};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:61489;
CC Evidence={ECO:0000256|ARBA:ARBA00001828};
CC -!- SUBCELLULAR LOCATION: Secreted, extracellular exosome
CC {ECO:0000256|ARBA:ARBA00004550}.
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. RsmB/NOP family. {ECO:0000256|PROSITE-ProRule:PRU01023}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|PROSITE-ProRule:PRU01023}.
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DR AlphaFoldDB; A0A452SJ69; -.
DR Ensembl; ENSUAMT00000036333.1; ENSUAMP00000032605.1; ENSUAMG00000024741.1.
DR GeneTree; ENSGT00940000153665; -.
DR Proteomes; UP000291022; Unassembled WGS sequence.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-KW.
DR GO; GO:0016428; F:tRNA (cytidine-5-)-methyltransferase activity; IEA:InterPro.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-KW.
DR GO; GO:0030488; P:tRNA methylation; IEA:UniProt.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 2.
DR InterPro; IPR049560; MeTrfase_RsmB-F_NOP2_cat.
DR InterPro; IPR001678; MeTrfase_RsmB-F_NOP2_dom.
DR InterPro; IPR023267; RCMT.
DR InterPro; IPR023270; RCMT_NCL1.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR PANTHER; PTHR22808; NCL1 YEAST -RELATED NOL1/NOP2/FMU SUN DOMAIN-CONTAINING; 1.
DR PANTHER; PTHR22808:SF1; RNA CYTOSINE C(5)-METHYLTRANSFERASE NSUN2; 1.
DR Pfam; PF01189; Methyltr_RsmB-F; 2.
DR PRINTS; PR02008; RCMTFAMILY.
DR PRINTS; PR02011; RCMTNCL1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 2.
DR PROSITE; PS51686; SAM_MT_RSMB_NOP; 2.
PE 3: Inferred from homology;
KW Acetylation {ECO:0000256|ARBA:ARBA00022990};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|PROSITE-
KW ProRule:PRU01023}; Nucleus {ECO:0000256|ARBA:ARBA00023242};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553};
KW Reference proteome {ECO:0000313|Proteomes:UP000291022};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|PROSITE-
KW ProRule:PRU01023};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691,
KW ECO:0000256|PROSITE-ProRule:PRU01023};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PROSITE-
KW ProRule:PRU01023}; tRNA processing {ECO:0000256|ARBA:ARBA00022694};
KW tRNA-binding {ECO:0000256|ARBA:ARBA00022555}.
FT DOMAIN 59..197
FT /note="SAM-dependent MTase RsmB/NOP-type"
FT /evidence="ECO:0000259|PROSITE:PS51686"
FT DOMAIN 224..381
FT /note="SAM-dependent MTase RsmB/NOP-type"
FT /evidence="ECO:0000259|PROSITE:PS51686"
FT REGION 1..26
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 672..731
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 272
FT /note="Nucleophile"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 177..183
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
SQ SEQUENCE 731 AA; 82712 MW; D929CF444FCA5842 CRC64;
FIYSTERDSQ REREHKQGER ERKKQGWEGG YPEIVKENKL FEHYYQELKI VPEGEWDQFM
EALREPLPAT LRITGYKSHA KEILHCLKNK YFKELEDLEV DGQKVEVPQP LSWYPEELAW
HTNLSRKILR KSPQLEKFHQ FLVSETESGN ISRQEAVSMI PPLLLNAHPH HKILDMCAAP
GSKTTQLIEM LHADMNVPFP GMLWTALWRV GMPLCWVYMR KRCGDGTMRK NIDVWKKWTT
LNSLQLHGLQ LRIATRGAEQ LVEGGRMVYS TCSLNPIEDE AVIASLLEKS EGALELADVS
SELPGLKWMP GITHWKVMTK DGQWFTEWEG VPHSRHTQIR PTMFPPKDPE KLQAMHLERC
LRILPHHQNT GGFFVAVLVK KSSMPWNKRP PKVTCRDVGP SCGRWVPLCV VAVGGASSAC
GEPRPHRAEE KGRWAGGVRC WRVALGLIMV HVSCPDSFLS PPPSKKMKLF GFKEDPFVFI
PEDDPLFPPI QKFYALDPSF PKMNLLTRTT EGKKRQLYMV SKELRNVLVN NSERMKVINT
GIKVWCRNNS GEDFDCAFRL AQEGIYTLYP FIKSRIITVS IEDVKILLTQ ENPFFRKLSS
ETYSQAKDLA KGSIVLKYEP DPTKPDTLQC PIVLCGWRGK ASIRTFVPKN ERLHYLRMMG
LEVSAEKKKE GTVVAQQSAG SCGPPGDEAS AEHGAEPAAS ADSSEDMSPD VSVDAAPGPS
GPAPAEAALP R
//
