12-122225996-A-G

Position:

• chr12-122225996-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001371333.1(DIABLO):​c.19T>C​(p.Trp7Arg) 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 pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin Lovd.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DIABLO NM_001371333.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.51

Genes affected

DIABLO (HGNC:21528): (diablo IAP-binding mitochondrial protein) This gene encodes an inhibitor of apoptosis protein (IAP)-binding protein. The encoded mitochondrial protein enters the cytosol when cells undergo apoptosis, and allows activation of caspases by binding to inhibitor of apoptosis proteins. Overexpression of the encoded protein sensitizes tumor cells to apoptosis. A mutation in this gene is associated with young-adult onset of nonsyndromic deafness-64. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, May 2013]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.874

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DIABLO	NM_001371333.1	c.19T>C	p.Trp7Arg	missense_variant	1/6	ENST00000464942.7	NP_001358262.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DIABLO	ENST00000464942.7	c.19T>C	p.Trp7Arg	missense_variant	1/6	1	NM_001371333.1	ENSP00000442360	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.14
CADD	Benign	19
DANN	Benign	0.85
DEOGEN2	Benign	0.32	T;T;.;.
Eigen	Benign	-0.26
Eigen_PC	Benign	-0.17
FATHMM_MKL	Benign	0.47	N
LIST_S2	Benign	0.59	T;.;T;T
M_CAP	Pathogenic	0.35	D
MetaRNN	Pathogenic	0.87	D;D;D;D
MetaSVM	Benign	-0.66	T
MutationAssessor	Uncertain	2.6	M;M;M;.
MutationTaster	Benign	1.0	D;D;N;N;N
PrimateAI	Uncertain	0.49	T
PROVEAN	Benign	-2.2	N;.;D;.
REVEL	Uncertain	0.52
Sift	Benign	0.12	T;.;T;.
Sift4G	Benign	0.26	T;.;T;.
Polyphen		0.020	B;B;.;.
Vest4		0.60
MutPred		0.82		Gain of disorder (P = 0.005);Gain of disorder (P = 0.005);Gain of disorder (P = 0.005);Gain of disorder (P = 0.005);
MVP		0.68
MPC		0.039
ClinPred		0.41	T
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.35
gMVP		0.32

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs139511903; hg19: chr12-122710543;