NM_020699.4:c.1702T>A

Variant names:

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

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_020699.4(GATAD2B):​c.1702T>A​(p.Leu568Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,132 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L568V) has been classified as Uncertain significance.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: GATAD2B NM_020699.4 missense
• Clinical Significance: Not reported in ClinVar
• 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: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11729121).

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>A	p.Leu568Met	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>A	p.Leu568Met	missense	Exon 11 of 11	ENSP00000357644.4	Q8WXI9
	GATAD2B	ENST00000634544.1	TSL:5	c.1702T>A	p.Leu568Met	missense	Exon 11 of 11	ENSP00000489184.1	Q8WXI9
	GATAD2B	ENST00000867096.1		c.1702T>A	p.Leu568Met	missense	Exon 12 of 12	ENSP00000537155.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152132 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152132 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74312

African (AFR) AF: 0.00 AC: 0 AN: 41406

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000192 AC: 1 AN: 5198

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68022

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.051	T
Eigen	Benign	-0.051
Eigen_PC	Benign	-0.14
FATHMM_MKL	Benign	0.43	N
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.0069	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		-0.24
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	0.31	N
REVEL	Benign	0.15
Sift	Benign	0.14	T
Sift4G	Benign	0.16	T
Polyphen		0.99	D
Vest4		0.31
MutPred		0.17		Gain of disorder (P = 0.0772)
MVP		0.28
MPC		1.8
ClinPred		0.60	D
GERP RS		0.068
Varity_R		0.060
gMVP		0.45
Mutation Taster		=83/17	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;