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Gene

BSN

bassoon presynaptic cytomatrix protein

Summary

Cytogenetic location
3p21.31
Coordinates
Chromosome 3: 49,554,477–49,671,549 (GRCh38)
Exons
12 exons across 117.1 kb
Protein
3,926 amino acids
Previous symbols
ZNF231
MANE Select transcript
ENST00000296452.5NM_003458.4
Locus type
gene with protein product

Reference genomeGRCh38

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

Curated report relevant to this gene

    • Epilepsy (Full Panel)

      • Epilepsy

        One of 171 genes linked to it

        A brain disorder characterized by episodes of abnormally increased neuronal discharge resulting in transient episodes of sensory or motor neurological dysfunction, or psychic dysfunction. These episodes may or may not be associated with loss of consciousness or convulsions.

        • 1 GenCC submitter rates it definitive or strong

    How BSN is laid out

    • Coding sequence
    • Untranslated region
    • Intron
    • Direction of transcription
    • Stretches short reads find hard
    Chromosome 3, with a bracket where BSN sits. BSN and 31 genes near it on chromosome 3, from 49,113,013 to 50,113,012.Chromosome 33p21.31p26.3p26.2p26.1p25.3p25.2p25.1p24.3p24.2p24.1p23p22.3p22.2p22.1p21.33p21.32p21.31p21.2p21.1p14.3p14.2p14.1p13p12.3p12.2p12.1p11.2p11.1q11.1q11.2q12.1q12.2q12.3q13.11q13.12q13.13q13.2q13.31q13.32q13.33q21.1q21.2q21.3q22.1q22.2q22.3q23q24q25.1q25.2q25.31q25.32q25.33q26.1q26.2q26.31q26.32q26.33q27.1q27.2q27.3q28q2949.2 Mb49.4 Mb49.6 Mb49.8 Mb50 MbUSP19: 49,105,758–49,120,940, reverse strandUSP19LAMB2: 49,121,113–49,133,118, reverse strandLAMB2CCDC71: 49,161,063–49,166,357, reverse strandCCDC71KLHDC8B: 49,171,239–49,176,487, forward strandKLHDC8BCIMIP7: 49,177,634–49,191,858, reverse strandCIMIP7IHO1: 49,198,428–49,277,629, forward strandIHO1C3orf62: 49,268,596–49,277,236, reverse strandC3orf62USP4: 49,277,144–49,340,712, reverse strandUSP4GPX1: 49,357,174–49,358,605, reverse strandGPX1: 49,357,176–49,412,051, reverse strandRHOA: 49,359,136–49,412,998, reverse strandTCTA: 49,412,212–49,455,826, forward strandTCTAAMT: 49,416,771–49,422,685, reverse strandAMT: 49,416,777–49,429,314, reverse strandNICN1: 49,422,333–49,429,331, reverse strandNICN1DAG1: 49,468,649–49,535,624, forward strandDAG1BSN: 49,554,477–49,671,549, forward strandBSNAPEH: 49,673,818–49,683,973, forward strandAPEHMST1: 49,683,922–49,689,501, reverse strandMST1RNF123: 49,688,740–49,723,389, forward strandRNF123AMIGO3: 49,716,829–49,719,684, reverse strandAMIGO3GMPPB: 49,716,844–49,723,988, reverse strandIP6K1: 49,724,294–49,786,557, reverse strandIP6K1CDHR4: 49,790,732–49,799,879, reverse strandCDHR4INKA1: 49,803,228–49,805,237, forward strandINKA1UBA7: 49,805,205–49,814,151, reverse strandUBA7TRAIP: 49,828,595–49,856,597, reverse strandTRAIPCAMKV: 49,857,214–49,870,064, reverse strandCAMKVMST1R: 49,886,902–49,906,130, reverse strandMST1RMON1A: 49,907,160–49,930,173, reverse strandMON1ARBM6: 49,940,007–50,100,045, forward strandRBM6RBM5: 50,088,898–50,119,021, forward strandRBM5Diagram of BSN: 12 exons on the forward strand of chromosome 3Exon 1: 49,554,477–49,554,826, 350 basesExon 2: 49,624,975–49,625,383, 409 basesExon 3: 49,642,268–49,643,152, 885 basesExon 4: 49,650,612–49,651,079, 468 basesExon 5: 49,651,543–49,658,196, 6,654 basesExon 6: 49,660,486–49,662,562, 2,077 basesExon 7: 49,662,876–49,663,666, 791 basesExon 8: 49,663,787–49,663,886, 100 basesExon 9: 49,664,423–49,664,554, 132 basesExon 10: 49,664,799–49,664,853, 55 basesExon 11: 49,665,229–49,665,318, 90 basesExon 12: 49,667,590–49,671,549, 3,960 bases1510125′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 16 kb of the gene's 117.1 kb; 11,781 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.
    • GenCC and ClinGen, released 2026-10-16: which conditions the gene is linked to, and how strongly.
    • The ACMG secondary findings list, SF v3.2.
    • Data release 2026.10.16-c6eea6bf.

    Cite this page

    APA

    Dante Labs. (n.d.). BSN gene: bassoon presynaptic cytomatrix protein. Retrieved 17 October 2026, from https://dantelabs.com/genes/bsn

    Vancouver

    Dante Labs. BSN gene: bassoon presynaptic cytomatrix protein [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/bsn

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