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Aliases for CBX1 Gene

Aliases for CBX1 Gene

  • Chromobox 1 2 3 5
  • Heterochromatin Protein 1 Homolog Beta 3 4
  • Modifier 1 Protein 3 4
  • HP1Hsbeta 3 4
  • P25beta 3 4
  • CBX 3 4
  • M31 3 4
  • Chromobox Homolog 1 (HP1 Beta Homolog Drosophila ) 3
  • Chromobox Homolog 1 (Drosophila HP1 Beta) 2
  • Heterochromatin Protein P25 Beta 3
  • HP1 Beta Homolog (Drosophila ) 2
  • Heterochromatin Protein 1-Beta 3
  • Heterochromatin Protein P25 4
  • Chromobox Homolog 1 2
  • HP1 Beta Homolog 3
  • HP1Hs-Beta 3
  • HP1-BETA 3
  • HP1 Beta 4
  • MOD1 3

External Ids for CBX1 Gene

Previous GeneCards Identifiers for CBX1 Gene

  • GC17M045852
  • GC17M048627
  • GC17M046489
  • GC17M046622
  • GC17M043502
  • GC17M046147
  • GC17M041515

Summaries for CBX1 Gene

Entrez Gene Summary for CBX1 Gene

  • This gene encodes a highly conserved nonhistone protein, which is a member of the heterochromatin protein family . The protein is enriched in the heterochromatin and associated with centromeres. The protein has a single N-terminal chromodomain which can bind to histone proteins via methylated lysine residues, and a C-terminal chromo shadow-domain (CSD) which is responsible for the homodimerization and interaction with a number of chromatin-associated nonhistone proteins. The protein may play an important role in the epigenetic control of chromatin structure and gene expression. Several related pseudogenes are located on chromosomes 1, 3, and X. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jul 2008]

GeneCards Summary for CBX1 Gene

CBX1 (Chromobox 1) is a Protein Coding gene. Diseases associated with CBX1 include Mandibuloacral Dysplasia. Among its related pathways are Chromatin Regulation / Acetylation. GO annotations related to this gene include protein homodimerization activity and chromatin binding. An important paralog of this gene is CBX3.

UniProtKB/Swiss-Prot for CBX1 Gene

  • Component of heterochromatin. Recognizes and binds histone H3 tails methylated at Lys-9, leading to epigenetic repression. Interaction with lamin B receptor (LBR) can contribute to the association of the heterochromatin with the inner nuclear membrane.

Gene Wiki entry for CBX1 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for CBX1 Gene

Genomics for CBX1 Gene

Regulatory Elements for CBX1 Gene

Enhancers for CBX1 Gene
GeneHancer Identifier Score Enhancer Sources TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Other Gene Targets for Enhancer

Enhancers around CBX1 on UCSC Golden Path with GeneCards custom track

Promoters for CBX1 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

ENSRs around CBX1 on UCSC Golden Path with GeneCards custom track

Genomic Location for CBX1 Gene

48,070,052 bp from pter
48,101,521 bp from pter
31,470 bases
Minus strand

Genomic View for CBX1 Gene

Genes around CBX1 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
CBX1 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for CBX1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for CBX1 Gene

Proteins for CBX1 Gene

  • Protein details for CBX1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Chromobox protein homolog 1
    Protein Accession:
    Secondary Accessions:
    • P23197

    Protein attributes for CBX1 Gene

    185 amino acids
    Molecular mass:
    21418 Da
    Quaternary structure:
    • Homodimer. Interacts directly with CHAF1A, EMSY, LBR, TIF1/TIF1A and TRIM28/TIF1B PXVXL motif via the chromoshadow domain. Interacts directly with histone H3 methylated at Lys-9 via the chromo domain. Interacts with SUV39H1 and SETDB1, KMT5B and KMT5C. Interacts with PRDM6. Interacts with POGZ. Interacts with CHAMP1. Interacts with ASXL1.

    Three dimensional structures from OCA and Proteopedia for CBX1 Gene

neXtProt entry for CBX1 Gene

Proteomics data for CBX1 Gene at MOPED

Post-translational modifications for CBX1 Gene

Other Protein References for CBX1 Gene

Antibody Products

  • Cell Signaling Technology (CST) Antibodies for CBX1 (CBX1)

No data available for DME Specific Peptides for CBX1 Gene

Domains & Families for CBX1 Gene

Gene Families for CBX1 Gene

Graphical View of Domain Structure for InterPro Entry



  • Contains 2 chromo domains.
  • Contains 2 chromo domains.
genes like me logo Genes that share domains with CBX1: view

Function for CBX1 Gene

Molecular function for CBX1 Gene

UniProtKB/Swiss-Prot Function:
Component of heterochromatin. Recognizes and binds histone H3 tails methylated at Lys-9, leading to epigenetic repression. Interaction with lamin B receptor (LBR) can contribute to the association of the heterochromatin with the inner nuclear membrane.
genes like me logo Genes that share phenotypes with CBX1: view

Animal Models for CBX1 Gene

MGI Knock Outs for CBX1:
  • Cbx1 tm1a(EUCOMM)Wtsi

Animal Model Products

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Human Phenotype Ontology , Transcription Factor Targets and HOMER Transcription for CBX1 Gene

Localization for CBX1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for CBX1 Gene

Nucleus. Note=Unassociated with chromosomes during mitosis.

Subcellular locations from

Jensen Localization Image for CBX1 Gene COMPARTMENTS Subcellular localization image for CBX1 gene
Compartment Confidence
cytoskeleton 5
nucleus 5
cytosol 2
golgi apparatus 2

Gene Ontology (GO) - Cellular Components for CBX1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000781 chromosome, telomeric region IDA --
GO:0001939 female pronucleus IEA --
GO:0005720 nuclear heterochromatin TAS 9169582
GO:0005721 pericentric heterochromatin IEA --
GO:0005819 spindle IDA 11101528
genes like me logo Genes that share ontologies with CBX1: view

Pathways & Interactions for CBX1 Gene

genes like me logo Genes that share pathways with CBX1: view

Pathways by source for CBX1 Gene

1 Cell Signaling Technology pathway for CBX1 Gene

SIGNOR curated interactions for CBX1 Gene

Is inactivated by:

Gene Ontology (GO) - Biological Process for CBX1 Gene


Drugs & Compounds for CBX1 Gene

(1) Drugs for CBX1 Gene - From: Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
genes like me logo Genes that share compounds with CBX1: view

Transcripts for CBX1 Gene

Unigene Clusters for CBX1 Gene

Chromobox homolog 1:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for CBX1 Gene

ExUns: 1a · 1b ^ 2 ^ 3 ^ 4a · 4b · 4c ^ 5 ^ 6
SP2: -
SP3: -

Relevant External Links for CBX1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for CBX1 Gene

mRNA expression in normal human tissues for CBX1 Gene

Protein differential expression in normal tissues from HIPED for CBX1 Gene

This gene is overexpressed in Peripheral blood mononuclear cells (13.3), Liver (12.0), and Fetal ovary (6.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MOPED, and MaxQB for CBX1 Gene

SOURCE GeneReport for Unigene cluster for CBX1 Gene Hs.77254

mRNA Expression by UniProt/SwissProt for CBX1 Gene

Tissue specificity: Expressed in all adult and embryonic tissues.
genes like me logo Genes that share expression patterns with CBX1: view

Protein tissue co-expression partners for CBX1 Gene

- Elite partner

Primer Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA differential expression in normal tissues for CBX1 Gene

Orthologs for CBX1 Gene

This gene was present in the common ancestor of animals.

Orthologs for CBX1 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia LOC101904753 35
  • 95.14 (n)
  • 100 (a)
CBX1 36
  • 100 (a)
(Canis familiaris)
Mammalia CBX1 35
  • 96.04 (n)
  • 100 (a)
CBX1 36
  • 100 (a)
(Mus musculus)
Mammalia Cbx1 35
  • 94.59 (n)
  • 100 (a)
Cbx1 16
Cbx1 36
  • 100 (a)
(Pan troglodytes)
Mammalia CBX1 35
  • 100 (n)
  • 100 (a)
CBX1 36
  • 100 (a)
(Rattus norvegicus)
Mammalia Cbx1 35
  • 93.33 (n)
  • 99.46 (a)
(Monodelphis domestica)
Mammalia CBX1 36
  • 98 (a)
(Ornithorhynchus anatinus)
Mammalia CBX1 36
  • 98 (a)
(Gallus gallus)
Aves CBX1 35
  • 84.47 (n)
  • 96.02 (a)
CBX1 36
  • 96 (a)
(Anolis carolinensis)
Reptilia CBX1 36
  • 93 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia cbx1 35
  • 79.43 (n)
  • 92 (a)
Str.16928 35
(Danio rerio)
Actinopterygii -- 35
cbx1b 35
  • 78.31 (n)
  • 89.16 (a)
cbx1a 36
  • 70 (a)
cbx1b 36
  • 75 (a)
rainbow trout
(Oncorhynchus mykiss)
Actinopterygii Omy.10237 35
fruit fly
(Drosophila melanogaster)
Insecta HP1b 37
  • 58 (a)
HP1b 35
  • 56.74 (n)
  • 58.87 (a)
HP1b 36
  • 38 (a)
HP1c 36
  • 28 (a)
HP1e 36
  • 34 (a)
HP6 36
  • 41 (a)
Su(var)205 36
  • 41 (a)
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP004723 35
  • 61.07 (n)
  • 63.64 (a)
(Caenorhabditis elegans)
Secernentea hpl-1 36
  • 32 (a)
sea squirt
(Ciona savignyi)
Ascidiacea CSA.3133 36
  • 45 (a)
Species with no ortholog for CBX1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for CBX1 Gene

Gene Tree for CBX1 (if available)
Gene Tree for CBX1 (if available)

Paralogs for CBX1 Gene

Paralogs for CBX1 Gene

(10) SIMAP similar genes for CBX1 Gene using alignment to 7 proteins:

genes like me logo Genes that share paralogs with CBX1: view

Variants for CBX1 Gene

Sequence variations from dbSNP and Humsavar for CBX1 Gene

SNP ID Clin Chr 17 pos Sequence Context AA Info Type
rs6847 -- 48,070,445(-) CGTTT(A/T)CTTTG utr-variant-3-prime
rs8438 -- 48,070,583(-) AGTAA(C/T)GAAGT utr-variant-3-prime
rs978263 -- 48,103,302(-) tttgc(C/T)atttc upstream-variant-2KB
rs1050025 -- 48,070,793(-) AGTCT(A/G)AAACC utr-variant-3-prime
rs1063470 -- 48,076,975(-) AAAGT(A/G)GAGGA reference, synonymous-codon

Structural Variations from Database of Genomic Variants (DGV) for CBX1 Gene

Variant ID Type Subtype PubMed ID
nsv469808 CNV Complex 16826518
nsv908576 CNV Gain 21882294
esv2582446 CNV Deletion 19546169
esv2663382 CNV Deletion 23128226
esv2716011 CNV Deletion 23290073
esv1003767 CNV Insertion 20482838
nsv513477 CNV Insertion 21212237

Variation tolerance for CBX1 Gene

Residual Variation Intolerance Score: 44.4% of all genes are more intolerant (likely to be disease-causing)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot and Relevant External Links for CBX1 Gene

Disorders for CBX1 Gene

MalaCards: The human disease database

(1) MalaCards diseases for CBX1 Gene - From: GeneCards

Disorder Aliases PubMed IDs
mandibuloacral dysplasia
  • mad
- elite association - COSMIC cancer census association via MalaCards
Search CBX1 in MalaCards View complete list of genes associated with diseases

Relevant External Links for CBX1

Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with CBX1: view

No data available for UniProtKB/Swiss-Prot and Genatlas for CBX1 Gene

Publications for CBX1 Gene

  1. Heterochromatin protein HP1Hsbeta (p25beta) and its localization with centromeres in mitosis. (PMID: 9169582) Furuta K. … Tan E.M. (Chromosoma 1997) 2 3 4 23 67
  2. The core binding factor CBF negatively regulates skeletal muscle terminal differentiation. (PMID: 20195544) Philipot O. … Ait-Si-Ali S. (PLoS ONE 2010) 3 23
  3. Human heterochromatin protein 1 isoform HP1beta enhances androgen receptor activity and is implicated in prostate cancer growth. (PMID: 20308360) Shiota M. … Naito S. (Endocr. Relat. Cancer 2010) 3 23
  4. HP1-beta mobilization promotes chromatin changes that initiate the DNA damage response. (PMID: 18438399) Ayoub N. … Venkitaraman A.R. (Nature 2008) 3 23
  5. Differential cooperation between heterochromatin protein HP1 isoforms and MyoD in myoblasts. (PMID: 18599480) Yahi H. … Ait-Si-Ali S. (J. Biol. Chem. 2008) 3 23

Products for CBX1 Gene

Sources for CBX1 Gene