Skip to content
Use your HSA or FSA funds

Gene

U2AF1

U2 small nuclear RNA auxiliary factor 1

Summary

Cytogenetic location
21q22.3
Coordinates
Chromosome 21: 43,092,956–43,107,570 (GRCh38)
Exons
8 exons across 14.6 kb
Protein
240 amino acids
Also known as
U2AF35, RNU2AF1, RN
Previous symbols
U2AFBP
MANE Select transcript
ENST00000291552.9NM_006758.3
Locus type
gene with protein product
  • Very high
  • Confident
  • Low
  • Very low

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 U2AF1 yet. The test sequences your whole genome, so your data includes it all the same.

How U2AF1 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 21, with a bracket where U2AF1 sits. U2AF1 and 10 genes near it on chromosome 21, from 42,600,263 to 43,600,262.Chromosome 2121q22.3p13p12p11.2p11.1q11.1q11.2q21.1q21.2q21.3q22.11q22.12q22.13q22.2q22.342.8 Mb43 Mb43.2 Mb43.4 Mb43.6 MbPDE9A: 42,653,584–42,776,512, forward strandPDE9AWDR4: 42,843,013–42,879,583, reverse strandWDR4NDUFV3: 42,879,644–42,913,304, forward strandNDUFV3ERVH48-1: 42,916,803–42,925,630, reverse strandERVH48-1PKNOX1: 42,974,328–43,034,494, forward strandPKNOX1CBS: 43,050,900–43,076,943, reverse strandCBSU2AF1: 43,092,956–43,107,570, reverse strandU2AF1CRYAA: 43,169,008–43,172,810, forward strandCRYAASIK1: 43,414,483–43,427,137, reverse strandSIK1HSF2BP: 43,529,186–43,659,524, reverse strandHSF2BPH2BC12L: 43,565,182–43,565,648, forward strandH2BC12LDiagram of U2AF1: 8 exons on the reverse strand of chromosome 21Exon 8: 43,092,956–43,093,249, 294 basesExon 7: 43,094,471–43,094,563, 93 basesExon 6: 43,094,655–43,094,788, 134 basesExon 5: 43,095,438–43,095,536, 99 basesExon 4: 43,095,694–43,095,743, 50 basesExon 3: 43,100,453–43,100,519, 67 basesExon 2: 43,104,315–43,104,402, 88 basesExon 1: 43,107,451–43,107,570, 120 bases864215′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 0.9 kb of the gene's 14.6 kb; 723 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.). U2AF1 gene: U2 small nuclear RNA auxiliary factor 1. Retrieved 17 October 2026, from https://dantelabs.com/genes/u2af1

Vancouver

Dante Labs. U2AF1 gene: U2 small nuclear RNA auxiliary factor 1 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/u2af1

One test. A lifetime of answers.

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

Get my Genome Test