CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-021405
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 Dimethyladenosine transferase 2, mitochondrial 
Protein Synonyms/Alias
 Hepatitis C virus NS5A-transactivated protein 5; HCV NS5A-transactivated protein 5; Mitochondrial 12S rRNA dimethylase 2; Mitochondrial transcription factor B2; h-mtTFB; h-mtTFB2; hTFB2M; mtTFB2; S-adenosylmethionine-6-N', N'-adenosyl(rRNA) dimethyltransferase 2 
Gene Name
 TFB2M 
Gene Synonyms/Alias
 NS5ATP5 
Created Date
 July 27, 2013 
Organism
 Homo sapiens (Human) 
NCBI Taxa ID
 9606 
Lysine Modification
Position
Peptide
Type
References
138PHLESLGKNLDGKLRubiquitination[1, 2]
371NMHPQDFKTLFETIEubiquitination[1, 2]
Reference
 [1] A proteome-wide, quantitative survey of in vivo ubiquitylation sites reveals widespread regulatory roles.
 Wagner SA, Beli P, Weinert BT, Nielsen ML, Cox J, Mann M, Choudhary C.
 Mol Cell Proteomics. 2011 Oct;10(10):M111.013284. [PMID: 21890473]
 [2] hCKSAAP_UbSite: improved prediction of human ubiquitination sites by exploiting amino acid pattern and properties.
 Chen Z, Zhou Y, Song J, Zhang Z.
 Biochim Biophys Acta. 2013 Aug;1834(8):1461-7. [PMID: 23603789
Functional Description
 S-adenosyl-L-methionine-dependent methyltransferase which specifically dimethylates mitochondrial 12S rRNA at the conserved stem loop. Also required for basal transcription of mitochondrial DNA, probably via its interaction with POLRMT and TFAM. Stimulates transcription independently of the methyltransferase activity. Compared to TFB1M, it activates transcription of mitochondrial DNA more efficiently, while it has less methyltransferase activity. 
Sequence Annotation
  
Keyword
 Complete proteome; Methyltransferase; Mitochondrion; Polymorphism; Reference proteome; rRNA processing; S-adenosyl-L-methionine; Transcription; Transcription regulation; Transferase; Transit peptide. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 396 AA 
Protein Sequence
MWIPVVGLPR RLRLSALAGA GRFCILGSEA ATRKHLPARN HCGLSDSSPQ LWPEPDFRNP 60
PRKASKASLD FKRYVTDRRL AETLAQIYLG KPSRPPHLLL ECNPGPGILT QALLEAGAKV 120
VALESDKTFI PHLESLGKNL DGKLRVIHCD FFKLDPRSGG VIKPPAMSSR GLFKNLGIEA 180
VPWTADIPLK VVGMFPSRGE KRALWKLAYD LYSCTSIYKF GRIEVNMFIG EKEFQKLMAD 240
PGNPDLYHVL SVIWQLACEI KVLHMEPWSS FDIYTRKGPL ENPKRRELLD QLQQKLYLIQ 300
MIPRQNLFTK NLTPMNYNIF FHLLKHCFGR RSATVIDHLR SLTPLDARDI LMQIGKQEDE 360
KVVNMHPQDF KTLFETIERS KDCAYKWLYD ETLEDR 396 
Gene Ontology
 GO:0042645; C:mitochondrial nucleoid; IDA:BHF-UCL.
 GO:0000179; F:rRNA (adenine-N6,N6-)-dimethyltransferase activity; IEA:InterPro.
 GO:0003712; F:transcription cofactor activity; IDA:UniProtKB.
 GO:0045893; P:positive regulation of transcription, DNA-dependent; IDA:UniProtKB.
 GO:0006391; P:transcription initiation from mitochondrial promoter; IDA:UniProtKB. 
Interpro
 IPR016861; Mt_di-Me-Ado_Trfase_2_prcur.
 IPR001737; rRNA_Ade_methylase_transferase. 
Pfam
 PF00398; RrnaAD 
SMART
  
PROSITE
 PS01131; RRNA_A_DIMETH 
PRINTS