5-96765327-TAAAAAAAAAAAAAAA-TAAAAAA

Variant names:

• chr5-96765327-TAAAAAAAAA-T
• rs59338324
• NM_001750.7:c.2037+20_2037+28delAAAAAAAAA

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001750.7(CAST):​c.2037+20_2037+28delAAAAAAAAA variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 512,116 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000051 (0 hom., cov: 0)
  • Exomes 𝑓: 0.00020 (0 hom.)
• Consequence: CAST NM_001750.7 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.47
• Publications: 1 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]

ERAP1 (HGNC:18173): (endoplasmic reticulum aminopeptidase 1) The protein encoded by this gene is an aminopeptidase involved in trimming HLA class I-binding precursors so that they can be presented on MHC class I molecules. The encoded protein acts as a monomer or as a heterodimer with ERAP2. This protein may also be involved in blood pressure regulation by inactivation of angiotensin II. Three transcript variants encoding two different isoforms have been found for this gene.[provided by RefSeq, Oct 2010]

CAST (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001750.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CAST	NM_001750.7	MANE Select	c.2037+20_2037+28delAAAAAAAAA		intron	N/A	NP_001741.4
	ERAP1	NM_001349244.2		c.2819-2108_2819-2100delTTTTTTTTT		intron	N/A	NP_001336173.1
	ERAP1	NM_016442.5		c.2819-2108_2819-2100delTTTTTTTTT		intron	N/A	NP_057526.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CAST	ENST00000675179.1	MANE Select	c.2037+3_2037+11delAAAAAAAAA		splice_region intron	N/A	ENSP00000501872.1
	ERAP1	ENST00000296754.7	TSL:1	c.2819-2108_2819-2100delTTTTTTTTT		intron	N/A	ENSP00000296754.3
	CAST	ENST00000341926.7	TSL:1	c.1788+3_1788+11delAAAAAAAAA		splice_region intron	N/A	ENSP00000339914.3

Frequencies

GnomAD3 genomes AF: 0.0000506 AC: 5 AN: 98902 Hom.: 0 Cov.: 0

Gnomad AFR AF: 0.0000395

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000110

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000292

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000396

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.000196 AC: 81 AN: 413214 Hom.: 0 AF XY: 0.000189 AC XY: 42 AN XY: 222488

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.000431 AC: 4 AN: 9280

American (AMR) AF: 0.000732 AC: 10 AN: 13660

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 11088

East Asian (EAS) AF: 0.000172 AC: 4 AN: 23220

South Asian (SAS) AF: 0.000259 AC: 8 AN: 30850

European-Finnish (FIN) AF: 0.000131 AC: 4 AN: 30528

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 1706

European-Non Finnish (NFE) AF: 0.000170 AC: 46 AN: 270926

Other (OTH) AF: 0.000228 AC: 5 AN: 21956

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.0000506 AC: 5 AN: 98902 Hom.: 0 Cov.: 0 AF XY: 0.0000442 AC XY: 2 AN XY: 45250

African (AFR) AF: 0.0000395 AC: 1 AN: 25330

American (AMR) AF: 0.000110 AC: 1 AN: 9086

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 2730

East Asian (EAS) AF: 0.000292 AC: 1 AN: 3424

South Asian (SAS) AF: 0.00 AC: 0 AN: 2892

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 2698

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 168

European-Non Finnish (NFE) AF: 0.0000396 AC: 2 AN: 50534

Other (OTH) AF: 0.00 AC: 0 AN: 1304

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.5

Splicing

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

Other links and lift over

dbSNP: rs59338324; hg19: chr5-96101031;