Free for academic non-profit institutions. Other users need a Commercial license

Aliases for CGB1 Gene

Aliases for CGB1 Gene

  • Chorionic Gonadotropin Beta Subunit 1 2 3
  • Chorionic Gonadotropin, Beta Polypeptide 1 2 5

External Ids for CGB1 Gene

Previous GeneCards Identifiers for CGB1 Gene

  • GC19M050185
  • GC19M049895
  • GC19M054203
  • GC19M054219
  • GC19M054230
  • GC19M054224
  • GC19M049538
  • GC19M045915

Summaries for CGB1 Gene

Entrez Gene Summary for CGB1 Gene

  • The beta subunit of chorionic gonadotropin (CGB) is encoded by six highly homologous and structurally similar genes that are arranged in tandem and inverted pairs on chromosome 19q13.3, and contiguous with the luteinizing hormone beta (LHB) subunit gene. The CGB genes are primarily distinguished by differences in the 5' untranscribed region. This gene was originally thought to be one of the two pseudogenes (CGB1 and CGB2) of CGB subunit, however, detection of CGB1 and CGB2 transcripts in vivo, and their presence on the polysomes, suggested that these transcripts are translated. To date, a protein product corresponding to CGB1 has not been isolated. The deduced sequence of the hypothetical protein of 132 aa does not share any similarity with that of functional CGB subunits (PMID:8954017). However, a 155 aa protein, translated from a different frame, is about the same size, and shares 98% identity with other CGB subunits. [provided by RefSeq, Jul 2008]

GeneCards Summary for CGB1 Gene

CGB1 (Chorionic Gonadotropin Beta Subunit 1) is a Protein Coding gene. GO annotations related to this gene include hormone activity. An important paralog of this gene is TSHB.

Gene Wiki entry for CGB1 Gene

No data available for UniProtKB/Swiss-Prot , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for CGB1 Gene

Genomics for CGB1 Gene

Regulatory Elements for CGB1 Gene

Genomic Location for CGB1 Gene

49,035,569 bp from pter
49,036,934 bp from pter
1,366 bases
Minus strand

Genomic View for CGB1 Gene

Genes around CGB1 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
CGB1 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for CGB1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for CGB1 Gene

Proteins for CGB1 Gene

  • Protein details for CGB1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Choriogonadotropin subunit beta variant 1
    Protein Accession:
    Secondary Accessions:
    • A4FVC8
    • A8MUK6

    Protein attributes for CGB1 Gene

    187 amino acids
    Molecular mass:
    20468 Da
    Quaternary structure:
    No Data Available

    Alternative splice isoforms for CGB1 Gene


neXtProt entry for CGB1 Gene

Proteomics data for CGB1 Gene at MOPED

Post-translational modifications for CGB1 Gene

  • Glycosylation at Asn 63 and Asn 80
  • Modification sites at PhosphoSitePlus

Other Protein References for CGB1 Gene

ENSEMBL proteins:
REFSEQ proteins:

No data available for DME Specific Peptides for CGB1 Gene

Domains & Families for CGB1 Gene

Protein Domains for CGB1 Gene

Suggested Antigen Peptide Sequences for CGB1 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the glycoprotein hormones subunit beta family.
  • Belongs to the glycoprotein hormones subunit beta family.
genes like me logo Genes that share domains with CGB1: view

No data available for Gene Families for CGB1 Gene

Function for CGB1 Gene

genes like me logo Genes that share phenotypes with CGB1: view

No data available for Molecular function , Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Human Phenotype Ontology , Animal Models , miRNA , Transcription Factor Targets and HOMER Transcription for CGB1 Gene

Localization for CGB1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for CGB1 Gene


Subcellular locations from

Jensen Localization Image for CGB1 Gene COMPARTMENTS Subcellular localization image for CGB1 gene
Compartment Confidence
extracellular 5

No data available for Gene Ontology (GO) - Cellular Components for CGB1 Gene

Pathways & Interactions for CGB1 Gene

SuperPathways for CGB1 Gene

No Data Available

Interacting Proteins for CGB1 Gene

Gene Ontology (GO) - Biological Process for CGB1 Gene


No data available for Pathways by source and SIGNOR curated interactions for CGB1 Gene

Drugs & Compounds for CGB1 Gene

No Compound Related Data Available

Transcripts for CGB1 Gene

mRNA/cDNA for CGB1 Gene

(1) REFSEQ mRNAs :
(2) Additional mRNA sequences :
(409) Selected AceView cDNA sequences:
(2) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for CGB1 Gene

Chorionic gonadotropin, beta polypeptide 1:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for CGB1 Gene

No ASD Table

Relevant External Links for CGB1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for CGB1 Gene

mRNA expression in normal human tissues for CGB1 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB and MOPED for CGB1 Gene

SOURCE GeneReport for Unigene cluster for CGB1 Gene Hs.659014

mRNA Expression by UniProt/SwissProt for CGB1 Gene

Tissue specificity: Expressed in placenta, testis and pituitary.
genes like me logo Genes that share expression patterns with CGB1: view

Primer Products

No data available for mRNA differential expression in normal tissues , Protein differential expression in normal tissues and Protein tissue co-expression partners for CGB1 Gene

Orthologs for CGB1 Gene

This gene was present in the common ancestor of chordates.

Orthologs for CGB1 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia LHB 36
  • 60 (a)
(Canis familiaris)
Mammalia LHB 36
  • 60 (a)
(Monodelphis domestica)
Mammalia LHB 36
  • 52 (a)
(Mus musculus)
Mammalia Lhb 36
  • 58 (a)
(Anolis carolinensis)
Reptilia -- 36
  • 36 (a)
(Danio rerio)
Actinopterygii lhb 36
  • 39 (a)
Species with no ortholog for CGB1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • 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)
  • chicken (Gallus gallus)
  • chimpanzee (Pan troglodytes)
  • 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)
  • fruit fly (Drosophila melanogaster)
  • 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)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • 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)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for CGB1 Gene

Gene Tree for CGB1 (if available)
Gene Tree for CGB1 (if available)

Paralogs for CGB1 Gene

Paralogs for CGB1 Gene

(8) SIMAP similar genes for CGB1 Gene using alignment to 3 proteins:

genes like me logo Genes that share paralogs with CGB1: view

Variants for CGB1 Gene

Sequence variations from dbSNP and Humsavar for CGB1 Gene

SNP ID Clin Chr 19 pos Sequence Context AA Info Type
VAR_055838 -
rs139880571 -- 49,037,683(+) GCCTC(A/G)GAGGA upstream-variant-2KB
rs73945411 -- 49,038,813(+) AGACA(C/G)TGACT upstream-variant-2KB
rs141621458 -- 49,038,568(+) ATCAG(C/T)GGTCA upstream-variant-2KB
rs142643892 -- 49,038,232(+) GCTAT(G/T)ATTAT upstream-variant-2KB

Structural Variations from Database of Genomic Variants (DGV) for CGB1 Gene

Variant ID Type Subtype PubMed ID
nsv9739 CNV Gain+Loss 18304495
nsv833857 CNV Loss 17160897
nsv912248 CNV Loss 21882294
dgv3970n71 CNV Loss 21882294
nsv833859 CNV Loss 17160897
nsv912251 CNV Loss 21882294
esv22462 CNV Gain 19812545
nsv912252 CNV Loss 21882294
dgv592n67 CNV Loss 20364138
esv2718698 CNV Deletion 23290073

Variation tolerance for CGB1 Gene

Residual Variation Intolerance Score: 82.1% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 7.08; 80.40% 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 CGB1 Gene

Disorders for CGB1 Gene

Relevant External Links for CGB1

Atlas of Genetics and Cytogenetics in Oncology and Haematology:

No disorders were found for CGB1 Gene.

No data available for MalaCards , UniProtKB/Swiss-Prot and Genatlas for CGB1 Gene

Publications for CGB1 Gene

  1. The beta subunit of human chorionic gonadotropin is encoded by multiple genes. (PMID: 6194155) Policastro P. … Boime I. (J. Biol. Chem. 1983) 2 3 67
  2. The evolution and genomic landscape of CGB1 and CGB2 genes. (PMID: 17055150) Hallast P. … Laan M. (Mol. Cell. Endocrinol. 2007) 3 23
  3. Analysis of the human CGB/LHB gene cluster in breast tumors by real-time quantitative RT-PCR assays. (PMID: 11368883) Giovangrandi Y. … BiA"che I. (Cancer Lett. 2001) 3 23
  4. Novel insights into the expression of CGB1 & 2 genes by epithelial cancer cell lines secreting ectopic free hCGI^. (PMID: 24778026) Burczynska B.B. … Iles R.K. (Anticancer Res. 2014) 3
  5. Human Chorionic Gonadotropin Beta Subunit Genes CGB1 and CGB2 are Transcriptionally Active in Ovarian Cancer. (PMID: 23774837) Kubiczak M. … Jankowska A. (Int J Mol Sci 2013) 3

Products for CGB1 Gene

Sources for CGB1 Gene