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Gene

SF3A1

splicing factor 3a subunit 1

Summary

Cytogenetic location
22q12.2
Coordinates
Chromosome 22: 30,331,988–30,356,894 (GRCh38)
Exons
16 exons across 24.9 kb
Protein
793 amino acids
Also known as
SF3a120, SAP114, PRPF21, Prp21
MANE Select transcript
ENST00000215793.13NM_005877.6
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 SF3A1 yet. The test sequences your whole genome, so your data includes it all the same.

How SF3A1 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 22, with a bracket where SF3A1 sits. SF3A1 and 21 genes near it on chromosome 22, from 29,844,441 to 30,844,440.Chromosome 2222q12.2p13p12p11.2p11.1q11.1q11.21q11.22q11.23q12.1q12.2q12.3q13.1q13.2q13.31q13.32q13.3330 Mb30.2 Mb30.4 Mb30.6 Mb30.8 MbMTMR3: 29,883,141–30,030,868, forward strandMTMR3HORMAD2: 30,080,444–30,211,427, forward strandHORMAD2LIF: 30,240,453–30,246,804, reverse strandLIFOSM: 30,262,829–30,266,858, reverse strandOSMCASTOR1: 30,285,114–30,289,694, reverse strandCASTOR1: 30,285,238–30,299,482, reverse strandTBC1D10A: 30,291,990–30,326,947, reverse strandTBC1D10ASF3A1: 30,331,988–30,356,894, reverse strandSF3A1CCDC157: 30,356,631–30,378,673, forward strandCCDC157RNF215: 30,368,811–30,421,771, reverse strandRNF215SEC14L2: 30,396,941–30,425,303, forward strandSEC14L2: 30,409,255–30,428,990, forward strandMTFP1: 30,425,623–30,429,058, forward strandMTFP1SEC14L3: 30,447,959–30,472,056, reverse strandSEC14L4: 30,488,890–30,505,725, reverse strandSEC14L4SEC14L6: 30,522,799–30,546,741, reverse strandSEC14L6GAL3ST1: 30,554,632–30,576,210, reverse strandGAL3ST1PES1: 30,576,624–30,607,083, reverse strandPES1TCN2: 30,607,003–30,630,712, forward strandTCN2SLC35E4: 30,635,673–30,669,016, forward strandSLC35E4DUSP18: 30,652,051–30,667,887, reverse strandDUSP18OSBP2: 30,693,782–30,907,824, forward strandOSBP2Diagram of SF3A1: 16 exons on the reverse strand of chromosome 22Exon 16: 30,331,988–30,334,695, 2,708 basesExon 15: 30,335,467–30,335,538, 72 basesExon 14: 30,335,652–30,335,753, 102 basesExon 13: 30,337,026–30,337,180, 155 basesExon 12: 30,337,690–30,337,897, 208 basesExon 11: 30,338,789–30,339,034, 246 basesExon 10: 30,339,130–30,339,251, 122 basesExon 9: 30,340,196–30,340,381, 186 basesExon 8: 30,340,695–30,340,812, 118 basesExon 7: 30,341,692–30,341,885, 194 basesExon 6: 30,342,200–30,342,350, 151 basesExon 5: 30,342,805–30,342,879, 75 basesExon 4: 30,344,933–30,345,190, 258 basesExon 3: 30,346,312–30,346,519, 208 basesExon 2: 30,352,951–30,353,072, 122 basesExon 1: 30,356,730–30,356,894, 165 bases16141210864215′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 5.1 kb of the gene's 24.9 kb; 2,382 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.). SF3A1 gene: splicing factor 3a subunit 1. Retrieved 16 October 2026, from https://dantelabs.com/genes/sf3a1

Vancouver

Dante Labs. SF3A1 gene: splicing factor 3a subunit 1 [Internet]. [cited 16 October 2026]. Available from: https://dantelabs.com/genes/sf3a1

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