chr6-89863036-C-A

Variant names:

• chr6-89863036-C-A
• rs759845231
• ENST00000551025.4:c.1327C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_012115.4(CASP8AP2):​c.1327C>A​(p.His443Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000329 in 1,214,036 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 8/10 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000033 (0 hom.)
• Consequence: CASP8AP2 NM_012115.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.833

Genes affected

CASP8AP2 (HGNC:1510): (caspase 8 associated protein 2) This protein is highly similar to FLASH, a mouse apoptotic protein identified by its interaction with the death-effector domain (DED) of caspase 8. Studies of FLASH protein suggested that this protein may be a component of the death-inducing signaling complex that includes Fas receptor, Fas-binding adapter FADD, and caspase 8, and plays a regulatory role in Fas-mediated apoptosis. Alternative splicing results in multiple transcript variants encoding the same protein.[provided by RefSeq, Nov 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18187514).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CASP8AP2	NM_001137667.2	c.1327C>A	p.His443Asn	missense_variant	Exon 7 of 10		NP_001131139.1
CASP8AP2	NM_001137668.2	c.1327C>A	p.His443Asn	missense_variant	Exon 7 of 10		NP_001131140.1
CASP8AP2	NM_012115.4	c.1327C>A	p.His443Asn	missense_variant	Exon 7 of 10		NP_036247.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CASP8AP2	ENST00000551025.4	c.1327C>A	p.His443Asn	missense_variant	Exon 7 of 9	1		ENSP00000478179.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000407 AC: 1 AN: 245998 Hom.: 0 AF XY: 0.00000748 AC XY: 1 AN XY: 133630

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000898

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000329 AC: 4 AN: 1214036 Hom.: 0 Cov.: 33 AF XY: 0.00000332 AC XY: 2 AN XY: 601546

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000419

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000828 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jan 16, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1327C>A (p.H443N) alteration is located in exon 1 (coding exon 1) of the CASP8AP2 gene. This alteration results from a C to A substitution at nucleotide position 1327, causing the histidine (H) at amino acid position 443 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.089	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	18
DANN	Benign	0.60
DEOGEN2	Benign	0.15	T
FATHMM_MKL	Benign	0.16	N
LIST_S2	Benign	0.70	T
MetaRNN	Benign	0.18	T
PrimateAI	Benign	0.32	T
Sift4G	Benign	0.37	T
MVP		0.65
GERP RS		3.5
gMVP		0.085

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

Publications

LitVar

Other links and lift over

dbSNP: rs759845231; hg19: chr6-90572755;