Skip to content
Use your HSA or FSA funds

Gene

JCHAIN

joining chain of multimeric IgA and IgM

Summary

Cytogenetic location
4q13.3
Coordinates
Chromosome 4: 70,655,541–70,666,508 (GRCh38)
Exons
4 exons across 11 kb
Protein
159 amino acids
Also known as
IGCJ, JCH
Previous symbols
IGJ
MANE Select transcript
ENST00000254801.9NM_144646.4
Locus type
gene with protein product

Reference genomeGRCh38

Positions on gene and variant pages follow this choice, in this browser.

Curated reports relevant to this gene

No Genome Test report reads JCHAIN yet. The test sequences your whole genome, so your data includes it all the same.

How JCHAIN is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 4, with a bracket where JCHAIN sits. JCHAIN and 18 genes near it on chromosome 4, from 70,161,025 to 71,161,024.Chromosome 44q13.3p16.3p16.2p16.1p15.33p15.32p15.31p15.2p15.1p14p13p12p11q11q12q13.1q13.2q13.3q21.1q21.21q21.22q21.23q21.3q22.1q22.2q22.3q23q24q25q26q27q28.1q28.2q28.3q31.1q31.21q31.22q31.23q31.3q32.1q32.2q32.3q33q34.1q34.2q34.3q35.1q35.270.2 Mb70.4 Mb70.6 Mb70.8 Mb71 MbPRR27: 70,133,616–70,176,799, forward strandPRR27ODAM: 70,195,706–70,205,734, forward strandODAMFDCSP: 70,226,117–70,235,252, forward strandFDCSPCSN3: 70,238,382–70,251,474, forward strandCSN3CABS1: 70,334,981–70,337,116, forward strandCABS1SMR3A: 70,360,760–70,367,158, forward strandSMR3ASMR3B: 70,370,093–70,390,244, forward strandSMR3BOPRPN: 70,397,931–70,410,195, forward strandOPRPNMUC7: 70,430,492–70,482,997, forward strandMUC7AMTN: 70,518,569–70,532,743, forward strandAMTNAMBN: 70,592,256–70,607,288, forward strandAMBNENAM: 70,628,744–70,646,824, forward strandENAMJCHAIN: 70,655,541–70,666,508, reverse strandJCHAINUTP3: 70,688,532–70,690,551, forward strandUTP3RUFY3: 70,704,204–70,808,619, forward strandRUFY3GRSF1: 70,815,783–70,839,957, reverse strandGRSF1MOB1B: 70,901,944–71,022,449, forward strandMOB1BDCK: 70,992,538–71,030,914, forward strandDCKSLC4A4: 71,062,644–71,572,087, forward strandSLC4A4Diagram of JCHAIN: 4 exons on the reverse strand of chromosome 4Exon 4: 70,655,541–70,656,539, 999 basesExon 3: 70,657,211–70,657,291, 81 basesExon 2: 70,662,092–70,662,215, 124 basesExon 1: 70,666,427–70,666,508, 82 bases43215′3′

Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.

Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).

Nearby genes from Ensembl release 116, on GRCh38.

Exons make up 1.3 kb of the gene's 11 kb; 480 of those bases code for the protein.

Where this comes from

  • HGNC: the gene's symbol, name, other symbols and location.
  • MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.

Cite this page

APA

Dante Labs. (n.d.). JCHAIN gene: joining chain of multimeric IgA and IgM. Retrieved 17 October 2026, from https://dantelabs.com/genes/jchain

Vancouver

Dante Labs. JCHAIN gene: joining chain of multimeric IgA and IgM [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/jchain

One test. A lifetime of answers.

From $449Free shipping · Results in 6–8 weeks

Get my Genome Test