CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-021638
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 Chromobox protein homolog 8 
Protein Synonyms/Alias
 Polycomb 3 homolog; Pc3; hPc3; Rectachrome 1 
Gene Name
 CBX8 
Gene Synonyms/Alias
 PC3; RC1 
Created Date
 July 27, 2013 
Organism
 Homo sapiens (Human) 
NCBI Taxa ID
 9606 
Lysine Modification
Position
Peptide
Type
References
295RAAFLEAKGQGALDPubiquitination[1]
Reference
 [1] Refined preparation and use of anti-diglycine remnant (K-ε-GG) antibody enables routine quantification of 10,000s of ubiquitination sites in single proteomics experiments.
 Udeshi ND, Svinkina T, Mertins P, Kuhn E, Mani DR, Qiao JW, Carr SA.
 Mol Cell Proteomics. 2013 Mar;12(3):825-31. [PMID: 23266961
Functional Description
 Component of a Polycomb group (PcG) multiprotein PRC1- like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG PRC1 complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility. 
Sequence Annotation
 DOMAIN 11 69 Chromo.
 MOD_RES 110 110 Phosphoserine.
 MOD_RES 130 130 Phosphoserine.
 MOD_RES 191 191 Phosphoserine.
 MOD_RES 256 256 Phosphoserine.
 MOD_RES 265 265 Phosphoserine.
 MOD_RES 352 352 Phosphoserine.  
Keyword
 3D-structure; Chromatin regulator; Complete proteome; Nucleus; Phosphoprotein; Polymorphism; Reference proteome; Repressor; Transcription; Transcription regulation. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 389 AA 
Protein Sequence
MELSAVGERV FAAEALLKRR IRKGRMEYLV KWKGWSQKYS TWEPEENILD ARLLAAFEER 60
EREMELYGPK KRGPKPKTFL LKAQAKAKAK TYEFRSDSAR GIRIPYPGRS PQDLASTSRA 120
REGLRNMGLS PPASSTSTSS TCRAEAPRDR DRDRDRDRER DRERERERER ERERERERER 180
GTSRVDDKPS SPGDSSKKRG PKPRKELPDP SQRPLGEPSA GLGEYLKGRK LDDTPSGAGK 240
FPAGHSVIQL ARRQDSDLVQ CGVTSPSSAE ATGKLAVDTF PARVIKHRAA FLEAKGQGAL 300
DPNGTRVRHG SGPPSSGGGL YRDMGAQGGR PSLIARIPVA RILGDPEEES WSPSLTNLEK 360
VVVTDVTSNF LTVTIKESNT DQGFFKEKR 389 
Gene Ontology
 GO:0000792; C:heterochromatin; IEA:Compara.
 GO:0000790; C:nuclear chromatin; IDA:UniProtKB.
 GO:0035102; C:PRC1 complex; IDA:UniProtKB.
 GO:0000151; C:ubiquitin ligase complex; IEA:Compara.
 GO:0035064; F:methylated histone residue binding; IDA:UniProtKB.
 GO:0003727; F:single-stranded RNA binding; IEA:Compara.
 GO:0004842; F:ubiquitin-protein ligase activity; IEA:Compara.
 GO:0016574; P:histone ubiquitination; IEA:Compara.
 GO:0000122; P:negative regulation of transcription from RNA polymerase II promoter; IMP:UniProtKB.
 GO:0006351; P:transcription, DNA-dependent; IEA:UniProtKB-KW. 
Interpro
 IPR023780; Chromo_domain.
 IPR000953; Chromo_domain/shadow.
 IPR016197; Chromodomain-like.
 IPR023779; Chromodomain_CS. 
Pfam
 PF00385; Chromo 
SMART
 SM00298; CHROMO 
PROSITE
 PS00598; CHROMO_1
 PS50013; CHROMO_2 
PRINTS