CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-000878
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 mRNA-capping enzyme 
Protein Synonyms/Alias
 HCE; MCE1; Polynucleotide 5'-triphosphatase; TPase; mRNA 5'-triphosphatase; mRNA guanylyltransferase; GTP--RNA guanylyltransferase; GTase 
Gene Name
 Rngtt 
Gene Synonyms/Alias
 Cap1a 
Created Date
 July 27, 2013 
Organism
 Mus musculus (Mouse) 
NCBI Taxa ID
 10090 
Lysine Modification
Position
Peptide
Type
References
28AGRFLPLKTMLGPRYubiquitination[1]
Reference
 [1] Proteomic analyses reveal divergent ubiquitylation site patterns in murine tissues.
 Wagner SA, Beli P, Weinert BT, Schölz C, Kelstrup CD, Young C, Nielsen ML, Olsen JV, Brakebusch C, Choudhary C.
 Mol Cell Proteomics. 2012 Dec;11(12):1578-85. [PMID: 22790023
Functional Description
 Bifunctional mRNA-capping enzyme exhibiting RNA 5'- triphosphatase activity in the N-terminal part and mRNA guanylyltransferase activity in the C-terminal part. Catalyzes the first two steps of cap formation: by removing the gamma-phosphate from the 5'-triphosphate end of nascent mRNA to yield a diphosphate end, and by transferring the gmp moiety of GTP to the 5'-diphosphate terminus. 
Sequence Annotation
 REGION 1 212 TPase.
 REGION 229 597 GTase.
 ACT_SITE 126 126 For RNA 5'-triphosphatase activity (By
 ACT_SITE 294 294 N6-GMP-lysine intermediate.  
Keyword
 3D-structure; Complete proteome; GTP-binding; Hydrolase; mRNA capping; mRNA processing; Multifunctional enzyme; Nucleotide-binding; Nucleotidyltransferase; Nucleus; Reference proteome; Transferase. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 597 AA 
Protein Sequence
MAYNKIPPRW LNCPRRGQPV AGRFLPLKTM LGPRYDSQVA EENRFHPSML SNYLKSLKVK 60
MSLLVDLTNT SRFYDRNDIE KEGIKYIKLQ CKGHGECPTT ENTETFIRLC ERFNERSPPE 120
LIGVHCTHGF NRTGFLICAF LVEKMDWSIE AAVATFAQAR PPGIYKGDYL KELFRRYGDI 180
EEAPPPPVLP DWCFEDEDEE DEDEDGKKDS EPGSSASFSK RRKERLKLGA IFLEGITVKG 240
VTQVTTQPKL GEVQQKCHQF CGWEGSGFPG AQPVSMDKQN IRLLEQKPYK VSWKADGTRY 300
MMLIDGTNEV FMIDRDNSVF HVSNLEFPFR KDLRMHLSNT LLDGEMIIDK VNGQAVPRYL 360
IYDIIKFNAQ PVGDCDFNIR LQCIEREIIS PRHEKMKTGL IDKTQEPFSV RPKQFFDINI 420
SRKLLEGNFA KEVSHEMDGL IFQPIGKYKP GRCDDILKWK PPSLNSVDFR LKITRMGGEG 480
LLPQNVGLLY VGGYERPFAQ IKVTKELKQY DNKIIECKFE NNSWVFMRQR IDKSFPNAYN 540
TAMAVCNSIS NPVTKEMLFE FIDRCAAAAQ GQKRKYPLDP DTELMPPPPP KRLHRPT 597 
Gene Ontology
 GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
 GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
 GO:0004484; F:mRNA guanylyltransferase activity; IEA:EC.
 GO:0004651; F:polynucleotide 5'-phosphatase activity; IEA:EC.
 GO:0004725; F:protein tyrosine phosphatase activity; IEA:InterPro.
 GO:0008138; F:protein tyrosine/serine/threonine phosphatase activity; IEA:InterPro.
 GO:0006370; P:7-methylguanosine mRNA capping; IEA:UniProtKB-KW.
 GO:0035335; P:peptidyl-tyrosine dephosphorylation; IEA:GOC. 
Interpro
 IPR000340; Dual-sp_phosphatase_cat-dom.
 IPR017074; mRNA_cap_enz_bifunc.
 IPR001339; mRNA_cap_enzyme.
 IPR013846; mRNA_cap_enzyme_C.
 IPR012340; NA-bd_OB-fold.
 IPR000387; Tyr/Dual-sp_Pase.
 IPR016130; Tyr_Pase_AS. 
Pfam
 PF00782; DSPc
 PF03919; mRNA_cap_C
 PF01331; mRNA_cap_enzyme 
SMART
  
PROSITE
 PS00383; TYR_PHOSPHATASE_1
 PS50056; TYR_PHOSPHATASE_2 
PRINTS