rs155056

chr5-96638641-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000505143.5(CAST):c.61-36898C>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 151,888 control chromosomes in the GnomAD database, including 7,012 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 (7012 hom., cov: 31)
• Consequence: CAST ENST00000505143.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.42

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.325 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CAST	ENST00000505143.5	c.61-36898C>T		intron_variant		3

Frequencies

GnomAD3 genomes AF: 0.302 AC: 45847 AN: 151770 Hom.: 6999 Cov.: 31

Gnomad AFR AF: 0.329

Gnomad AMI AF: 0.125

Gnomad AMR AF: 0.288

Gnomad ASJ AF: 0.204

Gnomad EAS AF: 0.217

Gnomad SAS AF: 0.268

Gnomad FIN AF: 0.371

Gnomad MID AF: 0.250

Gnomad NFE AF: 0.295

Gnomad OTH AF: 0.287

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

GnomAD4 genome AF: 0.302 AC: 45906 AN: 151888 Hom.: 7012 Cov.: 31 AF XY: 0.304 AC XY: 22561 AN XY: 74228

Gnomad4 AFR AF: 0.329

Gnomad4 AMR AF: 0.288

Gnomad4 ASJ AF: 0.204

Gnomad4 EAS AF: 0.218

Gnomad4 SAS AF: 0.267

Gnomad4 FIN AF: 0.371

Gnomad4 NFE AF: 0.295

Gnomad4 OTH AF: 0.284

Alfa AF: 0.297 Hom.: 3590

Bravo AF: 0.297

Asia WGS AF: 0.237 AC: 825 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
Cadd	Benign	0.65
Dann	Benign	0.42

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs155056; hg19: chr5-95974345;