NM_001281775.3:c.2629C>T

Variant names:

• chr20-47238794-G-A
• rs1135401783
• NM_001281775.3:c.2629C>T

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_001281775.3(ZMYND8):​c.2629C>T​(p.Gln877*) variant causes a stop gained 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 (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ZMYND8 NM_001281775.3 stop_gained
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.44
• Publications: 1 publications found

Genes affected

ZMYND8 (HGNC:9397): (zinc finger MYND-type containing 8) The protein encoded by this gene is a receptor for activated C-kinase (RACK) protein. The encoded protein has been shown to bind in vitro to activated protein kinase C beta I. In addition, this protein is a cutaneous T-cell lymphoma-associated antigen. Finally, the protein contains a bromodomain and two zinc fingers, and is thought to be a transcriptional regulator. Multiple transcript variants encoding several different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ZMYND8 Gene-Disease associations (from GenCC):

• neurodevelopmental disorder

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, G2P
• autism spectrum disorder

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001281775.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZMYND8	NM_001281775.3	MANE Select	c.2629C>T	p.Gln877*	stop_gained	Exon 15 of 23	NP_001268704.1
	ZMYND8	NM_001363714.1		c.2650C>T	p.Gln884*	stop_gained	Exon 15 of 23	NP_001350643.1
	ZMYND8	NM_001281773.3		c.2569C>T	p.Gln857*	stop_gained	Exon 16 of 24	NP_001268702.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZMYND8	ENST00000471951.7	TSL:1 MANE Select	c.2629C>T	p.Gln877*	stop_gained	Exon 15 of 23	ENSP00000420095.2
	ZMYND8	ENST00000446994.6	TSL:1	c.2569C>T	p.Gln857*	stop_gained	Exon 15 of 23	ENSP00000396725.3
	ZMYND8	ENST00000311275.11	TSL:1	c.2569C>T	p.Gln857*	stop_gained	Exon 15 of 22	ENSP00000312237.7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Intellectual disability Uncertain:1

Aug 01, 2017

Institute of Human Genetics, FAU Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

LOF variant identified in a female patient with developmental delay, normal motor milestones, speech delay, anomalies of palmar creases.

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.050	T
BayesDel_noAF	Benign	-0.31
CADD	Pathogenic	40
DANN	Uncertain	1.0
Eigen	Uncertain	0.29
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Uncertain	0.91	D
PhyloP100		4.4
Vest4		0.33
GERP RS		4.8
Mutation Taster		=2/198	disease causing (fs/PTC)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs1135401783; hg19: chr20-45867538;