NM_020699.4:c.1702T>G

Variant names:

• chr1-153810257-A-C
• rs1215780997
• NM_020699.4:c.1702T>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020699.4(GATAD2B):​c.1702T>G​(p.Leu568Val) 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 benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L568L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: GATAD2B NM_020699.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.241
• Publications: 0 publications found

Genes affected

GATAD2B (HGNC:30778): (GATA zinc finger domain containing 2B) This gene encodes a zinc finger protein transcriptional repressor. The encoded protein is part of the methyl-CpG-binding protein-1 complex, which represses gene expression by deacetylating methylated nucleosomes. Mutations in this gene are linked to intellectual disability and dysmorphic features associated with cognitive disability. [provided by RefSeq, Jun 2016]

GATAD2B Gene-Disease associations (from GenCC):

• severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Illumina

ENSG00000291199 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.024716198).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020699.4. 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
	GATAD2B	NM_020699.4	MANE Select	c.1702T>G	p.Leu568Val	missense	Exon 11 of 11	NP_065750.1	Q8WXI9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GATAD2B	ENST00000368655.5	TSL:1 MANE Select	c.1702T>G	p.Leu568Val	missense	Exon 11 of 11	ENSP00000357644.4	Q8WXI9
	GATAD2B	ENST00000634544.1	TSL:5	c.1702T>G	p.Leu568Val	missense	Exon 11 of 11	ENSP00000489184.1	Q8WXI9
	GATAD2B	ENST00000867096.1		c.1702T>G	p.Leu568Val	missense	Exon 12 of 12	ENSP00000537155.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000403 AC: 1 AN: 248148 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000898

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	14
DANN	Uncertain	0.99
DEOGEN2	Benign	0.016	T
Eigen	Benign	-0.74
Eigen_PC	Benign	-0.65
FATHMM_MKL	Benign	0.42	N
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.0069	T
MetaRNN	Benign	0.025	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		-0.24
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	0.22	N
REVEL	Benign	0.065
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.13	B
Vest4		0.12
MutPred		0.11		Gain of methylation at K564 (P = 0.1464)
MVP		0.39
MPC		1.4
ClinPred		0.13	T
GERP RS		0.068
Varity_R		0.032
gMVP		0.64
Mutation Taster		=67/33	polymorphism

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: rs1215780997; hg19: chr1-153782733;