5-96647765-C-T

Variant names:

• chr5-96647765-C-T
• rs4869304
• NM_001423250.1:c.-174-27774C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001423250.1(CAST):​c.-174-27774C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.302 in 151,982 control chromosomes in the GnomAD database, including 7,107 homozygotes. 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: 𝑓 0.30 (7107 hom., cov: 32)
• Consequence: CAST NM_001423250.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.16
• Publications: 4 publications found

Genes affected

CAST (HGNC:1515): (calpastatin) The protein encoded by this gene is an endogenous calpain (calcium-dependent cysteine protease) inhibitor. It consists of an N-terminal domain L and four repetitive calpain-inhibition domains (domains 1-4), and it is involved in the proteolysis of amyloid precursor protein. The calpain/calpastatin system is involved in numerous membrane fusion events, such as neural vesicle exocytosis and platelet and red-cell aggregation. The encoded protein is also thought to affect the expression levels of genes encoding structural or regulatory proteins. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jun 2010]

CAST Gene-Disease associations (from GenCC):

• peeling skin-leukonuchia-acral punctate keratoses-cheilitis-knuckle pads syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp

CAST (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.342 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001423250.1. 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
	CAST	NM_001423250.1		c.-174-27774C>T		intron	N/A	NP_001410179.1
	CAST	NM_001423251.1		c.-174-27774C>T		intron	N/A	NP_001410180.1
	CAST	NM_001423252.1		c.-174-27774C>T		intron	N/A	NP_001410181.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CAST	ENST00000718093.1		c.-174-27774C>T		intron	N/A	ENSP00000520668.1
	CAST	ENST00000505143.6	TSL:3	c.-174-27774C>T		intron	N/A	ENSP00000422957.2
	CAST	ENST00000718091.1		c.-174-27774C>T		intron	N/A	ENSP00000520667.1

Frequencies

GnomAD3 genomes AF: 0.302 AC: 45792 AN: 151862 Hom.: 7098 Cov.: 32

Gnomad AFR AF: 0.346

Gnomad AMI AF: 0.0735

Gnomad AMR AF: 0.309

Gnomad ASJ AF: 0.172

Gnomad EAS AF: 0.190

Gnomad SAS AF: 0.299

Gnomad FIN AF: 0.308

Gnomad MID AF: 0.266

Gnomad NFE AF: 0.291

Gnomad OTH AF: 0.281

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.302 AC: 45847 AN: 151982 Hom.: 7107 Cov.: 32 AF XY: 0.302 AC XY: 22442 AN XY: 74284

African (AFR) AF: 0.347 AC: 14351 AN: 41394

American (AMR) AF: 0.309 AC: 4727 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.172 AC: 596 AN: 3470

East Asian (EAS) AF: 0.191 AC: 986 AN: 5172

South Asian (SAS) AF: 0.299 AC: 1441 AN: 4814

European-Finnish (FIN) AF: 0.308 AC: 3252 AN: 10560

Middle Eastern (MID) AF: 0.269 AC: 79 AN: 294

European-Non Finnish (NFE) AF: 0.291 AC: 19764 AN: 67978

Other (OTH) AF: 0.277 AC: 584 AN: 2110

Alfa AF: 0.294 Hom.: 3397

Bravo AF: 0.299

Asia WGS AF: 0.258 AC: 894 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	1.0
DANN	Benign	0.86
PhyloP100		-1.2

Splicing

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

Other links and lift over

dbSNP: rs4869304; hg19: chr5-95983469;