rs587777407

Variant names:

• chr11-686871-T-G
• rs587777407
• NM_021008.4:c.791A>C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1 PM2 PP3_Moderate

The NM_021008.4(DEAF1):​c.791A>C​(p.Gln264Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q264E) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DEAF1 NM_021008.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter P:1 U:1
• Conservation: PhyloP100: 5.91
• Publications: 8 publications found

Genes affected

DEAF1 (HGNC:14677): (DEAF1 transcription factor) This gene encodes a zinc finger domain-containing protein that functions as a regulator of transcription. The encoded proteins binds to its own promoter as well as to that of several target genes. Activity of this protein is important in the regulation of embryonic development. Mutations in this gene have been found in individuals with autosomal dominant cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

DEAF1 Gene-Disease associations (from GenCC):

• intellectual disability, autosomal dominant 24

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• intellectual disability-epilepsy-extrapyramidal syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, Ambry Genetics
• complex neurodevelopmental disorder

  Inheritance: SD Classification: STRONG Submitted by: Illumina
• autosomal dominant non-syndromic intellectual disability

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM1: In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 9 uncertain in NM_021008.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.915

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DEAF1	NM_021008.4	c.791A>C	p.Gln264Pro	missense_variant	Exon 5 of 12	ENST00000382409.4	NP_066288.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DEAF1	ENST00000382409.4	c.791A>C	p.Gln264Pro	missense_variant	Exon 5 of 12	1	NM_021008.4	ENSP00000371846.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1 Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Intellectual disability, autosomal dominant 24 Pathogenic:1 Uncertain:1

Sep 01, 2017

Baylor Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant has been previously reported arising de novo in a female patient with severe speech delay, intellectual disability, hypotonia, ataxia, fair hair, epicanthus, and full lips, but there is not sufficient information to categorize it as disease-causing. It was identified once in our laboratory de novo in a 11-year-old female with intellectual disability, dysmorphism, autistic features, epilepsy, hypotonia, ataxia. -

May 01, 2014

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.91	D
Eigen	Uncertain	0.64
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.92	D
M_CAP	Pathogenic	0.43	D
MetaRNN	Pathogenic	0.92	D
MetaSVM	Uncertain	0.066	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		5.9
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-4.6	D
REVEL	Pathogenic	0.90
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.029	D
Polyphen		1.0	D
Vest4		0.80
MutPred		0.66		Gain of catalytic residue at Q264 (P = 0.0112);
MVP		0.87
MPC		1.8
ClinPred		0.99	D
GERP RS		4.5
Varity_R		0.95
gMVP		0.92
Mutation Taster		=23/77	disease causing

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

Other links and lift over

dbSNP: rs587777407; hg19: chr11-686871;