chr20-62881259-A-T

Position:

• chr20-62881259-A-T

Variant summary

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

The NM_001193369.2(DIDO1):​c.4697T>A​(p.Leu1566Gln) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: DIDO1 NM_001193369.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.82

Genes affected

DIDO1 (HGNC:2680): (death inducer-obliterator 1) Apoptosis, a major form of cell death, is an efficient mechanism for eliminating unwanted cells and is of central importance for development and homeostasis in metazoan animals. In mice, the death inducer-obliterator-1 gene is upregulated by apoptotic signals and encodes a cytoplasmic protein that translocates to the nucleus upon apoptotic signal activation. When overexpressed, the mouse protein induced apoptosis in cell lines growing in vitro. This gene is similar to the mouse gene and therefore is thought to be involved in apoptosis. Alternatively spliced transcripts have been found for this gene, encoding multiple isoforms. [provided by RefSeq, Jul 2008]

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=0.26741198).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DIDO1	NM_001193369.2	c.4697T>A	p.Leu1566Gln	missense_variant	16/16	ENST00000395343.6	NP_001180298.1
DIDO1	NM_033081.3	c.4697T>A	p.Leu1566Gln	missense_variant	16/16		NP_149072.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DIDO1	ENST00000395343.6	c.4697T>A	p.Leu1566Gln	missense_variant	16/16	1	NM_001193369.2	ENSP00000378752	P2
DIDO1	ENST00000266070.8	c.4697T>A	p.Leu1566Gln	missense_variant	16/16	5		ENSP00000266070	P2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 27, 2021

The c.4697T>A (p.L1566Q) alteration is located in exon 16 (coding exon 14) of the DIDO1 gene. This alteration results from a T to A substitution at nucleotide position 4697, causing the leucine (L) at amino acid position 1566 to be replaced by a glutamine (Q). 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
AlphaMissense	Benign	0.19
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	20
DANN	Uncertain	0.98
DEOGEN2	Benign	0.14	T;T
Eigen	Benign	0.039
Eigen_PC	Benign	-0.046
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Benign	0.79	T;.
M_CAP	Benign	0.048	D
MetaRNN	Benign	0.27	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.3	L;L
MutationTaster	Benign	1.0	N;N
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-0.50	N;N
REVEL	Benign	0.20
Sift	Benign	0.074	T;T
Sift4G	Benign	0.081	T;T
Polyphen		0.98	D;D
Vest4		0.22
MutPred		0.14		Loss of stability (P = 0.0452);Loss of stability (P = 0.0452);
MVP		0.18
MPC		1.0
ClinPred		0.65	D
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.073
gMVP		0.22

Splicing

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-61512611;