NM_001374736.1:c.19896+64T>A

Variant names:

• chr6-56501016-A-T
• rs4283892
• NM_001374736.1:c.19896+64T>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001374736.1(DST):​c.19896+64T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: DST NM_001374736.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.68
• Publications: 8 publications found

Genes affected

DST (HGNC:1090): (dystonin) This gene encodes a member of the plakin protein family of adhesion junction plaque proteins. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene, but the full-length nature of some variants has not been defined. It has been reported that some isoforms are expressed in neural and muscle tissue, anchoring neural intermediate filaments to the actin cytoskeleton, and some isoforms are expressed in epithelial tissue, anchoring keratin-containing intermediate filaments to hemidesmosomes. Consistent with the expression, mice defective for this gene show skin blistering and neurodegeneration. [provided by RefSeq, Mar 2010]

DST Gene-Disease associations (from GenCC):

• hereditary sensory and autonomic neuropathy type 6

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics, Orphanet, G2P
• epidermolysis bullosa simplex 3, localized or generalized intermediate, with BP230 deficiency

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001374736.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DST	NM_001374736.1	MANE Select	c.19896+64T>A		intron	N/A	NP_001361665.1	A0A7P0T890
	DST	NM_001374734.1		c.19923+64T>A		intron	N/A	NP_001361663.1
	DST	NM_001374722.1		c.19896+64T>A		intron	N/A	NP_001361651.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DST	ENST00000680361.1	MANE Select	c.19896+64T>A		intron	N/A	ENSP00000505098.1	A0A7P0T890
	DST	ENST00000244364.10	TSL:1	c.12027+64T>A		intron	N/A	ENSP00000244364.6	Q03001-8
	DST	ENST00000361203.7	TSL:5	c.18936+64T>A		intron	N/A	ENSP00000354508.3	F8W9J4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1345050 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 665330

African (AFR) AF: 0.00 AC: 0 AN: 29114

American (AMR) AF: 0.00 AC: 0 AN: 32646

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23660

East Asian (EAS) AF: 0.00 AC: 0 AN: 36028

South Asian (SAS) AF: 0.00 AC: 0 AN: 70268

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50964

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5476

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1041108

Other (OTH) AF: 0.00 AC: 0 AN: 55786

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.39
DANN	Benign	0.36
PhyloP100		-1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs4283892; hg19: chr6-56365814;