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Protein

Chromobox protein homolog 6

Gene

CBX6

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

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.1 Publication

Miscellaneous

The human orthologuous proteins of Drosphila Polycomb group protein Pc, CBX2, CBX4, CBX6, CBX7 and CBX8, show distinct nulear localizations, contribute differently to transcriptional repression, and appear to be part of distinct PRC1-like protein complexes.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionChromatin regulator, Repressor
Biological processTranscription, Transcription regulation

Enzyme and pathway databases

ReactomeiR-HSA-2559580. Oxidative Stress Induced Senescence.

Names & Taxonomyi

Protein namesi
Recommended name:
Chromobox protein homolog 6
Gene namesi
Name:CBX6
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 22

Organism-specific databases

HGNCiHGNC:1556. CBX6.

Subcellular locationi

GO - Cellular componenti

  • heterochromatin Source: Ensembl
  • nucleoplasm Source: Reactome
  • nucleus Source: UniProtKB
  • PcG protein complex Source: UniProtKB

Keywords - Cellular componenti

Nucleus

Pathology & Biotechi

Organism-specific databases

DisGeNETi23466.
OpenTargetsiENSG00000183741.
PharmGKBiPA26131.

Polymorphism and mutation databases

BioMutaiCBX6.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000802101 – 412Chromobox protein homolog 6Add BLAST412

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei107PhosphoserineCombined sources1

Keywords - PTMi

Phosphoprotein

Proteomic databases

EPDiO95503.
MaxQBiO95503.
PaxDbiO95503.
PeptideAtlasiO95503.
PRIDEiO95503.

PTM databases

iPTMnetiO95503.
PhosphoSitePlusiO95503.

Expressioni

Gene expression databases

BgeeiENSG00000183741.
CleanExiHS_CBX6.
ExpressionAtlasiO95503. baseline and differential.
GenevisibleiO95503. HS.

Organism-specific databases

HPAiHPA048653.

Interactioni

Subunit structurei

Component of a PRC1-like complex. Interacts with PCGF1, PCGF2, PCGF3, BMI1, PCGF5, PCGF6, RING1 and RNF2.1 Publication

Binary interactionsi

Show more details

Protein-protein interaction databases

BioGridi117028. 68 interactors.
DIPiDIP-48605N.
IntActiO95503. 70 interactors.
MINTiMINT-7003039.
STRINGi9606.ENSP00000384490.

Structurei

Secondary structure

1412
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi9 – 22Combined sources14
Beta strandi25 – 32Combined sources8
Helixi37 – 39Combined sources3
Beta strandi41 – 44Combined sources4
Helixi45 – 47Combined sources3
Helixi51 – 62Combined sources12

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3GV6X-ray1.76A8-65[»]
3I90X-ray2.00A/B9-59[»]
ProteinModelPortaliO95503.
SMRiO95503.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiO95503.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini11 – 69ChromoPROSITE-ProRule annotationAdd BLAST59

Phylogenomic databases

eggNOGiKOG2748. Eukaryota.
ENOG41122KC. LUCA.
GeneTreeiENSGT00530000063056.
HOGENOMiHOG000013217.
HOVERGENiHBG003608.
InParanoidiO95503.
KOiK11453.
OMAiETQNASC.
OrthoDBiEOG091G0AFX.
PhylomeDBiO95503.
TreeFamiTF106456.

Family and domain databases

InterProiView protein in InterPro
IPR033773. CBX7_C.
IPR000953. Chromo/chromo_shadow_dom.
IPR017984. Chromo_dom_subgr.
IPR023780. Chromo_domain.
IPR016197. Chromodomain-like.
IPR023779. Chromodomain_CS.
PfamiView protein in Pfam
PF17218. CBX7_C. 1 hit.
PF00385. Chromo. 1 hit.
PRINTSiPR00504. CHROMODOMAIN.
SMARTiView protein in SMART
SM00298. CHROMO. 1 hit.
SUPFAMiSSF54160. SSF54160. 1 hit.
PROSITEiView protein in PROSITE
PS00598. CHROMO_1. 1 hit.
PS50013. CHROMO_2. 1 hit.

Sequencei

Sequence statusi: Complete.

O95503-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MELSAVGERV FAAESIIKRR IRKGRIEYLV KWKGWAIKYS TWEPEENILD
60 70 80 90 100
SRLIAAFEQK ERERELYGPK KRGPKPKTFL LKARAQAEAL RISDVHFSVK
110 120 130 140 150
PSASASSPKL HSSAAVHRLK KDIRRCHRMS RRPLPRPDPQ GGSPGLRPPI
160 170 180 190 200
SPFSETVRII NRKVKPREPK RNRIILNLKV IDKGAGGGGA GQGAGALARP
210 220 230 240 250
KVPSRNRVIG KSKKFSESVL RTQIRHMKFG AFALYKPPPA PLVAPSPGKA
260 270 280 290 300
EASAPGPGLL LAAPAAPYDA RSSGSSGCPS PTPQSSDPDD TPPKLLPETV
310 320 330 340 350
SPSAPSWREP EVLDLSLPPE SAATSKRAPP EVTAAAGPAP PTAPEPAGAS
360 370 380 390 400
SEPEAGDWRP EMSPCSNVVV TDVTSNLLTV TIKEFCNPED FEKVAAGVAG
410
AAGGGGSIGA SK
Length:412
Mass (Da):43,898
Last modified:May 1, 1999 - v1
Checksum:i50C69233B9ADEEA3
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti292P → L in AAH12111 (PubMed:15489334).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK293035 mRNA. Translation: BAF85724.1.
AL008583 Genomic DNA. No translation available.
CH471095 Genomic DNA. Translation: EAW60276.1.
BC012111 mRNA. Translation: AAH12111.1.
BC064900 mRNA. Translation: AAH64900.1.
CCDSiCCDS13980.1.
RefSeqiNP_001290423.1. NM_001303494.1.
NP_055107.3. NM_014292.4.
UniGeneiHs.592201.

Genome annotation databases

EnsembliENST00000407418; ENSP00000384490; ENSG00000183741.
GeneIDi23466.
KEGGihsa:23466.
UCSCiuc003awl.4. human.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiCBX6_HUMAN
AccessioniPrimary (citable) accession number: O95503
Secondary accession number(s): A8KAH0, Q96EM5
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 29, 2001
Last sequence update: May 1, 1999
Last modified: July 5, 2017
This is version 145 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. Human chromosome 22
    Human chromosome 22: entries, gene names and cross-references to MIM
  2. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  3. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references