1-15524118-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001229.5(CASP9):c.83C>G(p.Ala28Gly) variant causes a missense 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. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A28V) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CASP9 NM_001229.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.25

Genes affected

CASP9 (HGNC:1511): (caspase 9) This gene encodes a member of the cysteine-aspartic acid protease (caspase) family. Sequential activation of caspases plays a central role in the execution-phase of cell apoptosis. Caspases exist as inactive proenzymes which undergo proteolytic processing at conserved aspartic residues to produce two subunits, large and small, that dimerize to form the active enzyme. This protein can undergo autoproteolytic processing and activation by the apoptosome, a protein complex of cytochrome c and the apoptotic peptidase activating factor 1; this step is thought to be one of the earliest in the caspase activation cascade. This protein is thought to play a central role in apoptosis and to be a tumor suppressor. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.4042201).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CASP9	NM_001229.5	c.83C>G	p.Ala28Gly	missense_variant	1/9	ENST00000333868.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CASP9	ENST00000333868.10	c.83C>G	p.Ala28Gly	missense_variant	1/9	1	NM_001229.5	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 52

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.59
Cadd	Benign	14
Dann	Benign	0.94
Eigen	Benign	-0.56
Eigen_PC	Benign	-0.53
FATHMM_MKL	Benign	0.15	N
LIST_S2	Benign	0.61	T;T;T;T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.40	T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	0.98	P;P;P;P
PrimateAI	Uncertain	0.52	T
PROVEAN	Benign	-0.57	N;N;N;N
REVEL	Benign	0.054
Sift	Benign	0.73	T;T;T;T
Sift4G	Benign	0.57	T;T;T;.
Polyphen		0.0010	B;B;P;.
Vest4		0.18
MutPred		0.67		Loss of stability (P = 0.0132);Loss of stability (P = 0.0132);Loss of stability (P = 0.0132);Loss of stability (P = 0.0132);
MVP		0.41
MPC		0.12
ClinPred		0.23	T
GERP RS		1.3
Varity_R		0.45
gMVP		0.12

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: rs1052571; hg19: chr1-15850613;