11-644625-GCC-TGA

Variant names:

• chr11-644625-GCC-TGA
• NM_021008.4:c.1621_1623delGGCinsTCA
• DEAF1 p.Gly541Ser

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_021008.4(DEAF1):​c.1621_1623delGGCinsTCA​(p.Gly541Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Synonymous variant affecting the same amino acid position (i.e. G541G) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DEAF1 NM_021008.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.35
• Publications: 0 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, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• intellectual disability-epilepsy-extrapyramidal syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, 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: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021008.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DEAF1	NM_021008.4	MANE Select	c.1621_1623delGGCinsTCA	p.Gly541Ser	missense	N/A	NP_066288.2
	DEAF1	NM_001440883.1		c.1531_1533delGGCinsTCA	p.Gly511Ser	missense	N/A	NP_001427812.1
	DEAF1	NM_001440884.1		c.1492_1494delGGCinsTCA	p.Gly498Ser	missense	N/A	NP_001427813.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DEAF1	ENST00000382409.4	TSL:1 MANE Select	c.1621_1623delGGCinsTCA	p.Gly541Ser	missense	N/A	ENSP00000371846.3	O75398-1
	DEAF1	ENST00000527170.5	TSL:1	n.*181_*183delGGCinsTCA		non_coding_transcript_exon	Exon 10 of 10	ENSP00000431563.1	H0YCH1
	DEAF1	ENST00000527170.5	TSL:1	n.*181_*183delGGCinsTCA		3_prime_UTR	Exon 10 of 10	ENSP00000431563.1	H0YCH1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.3

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr11-644625;