18-22200666-C-A

Variant names:

• chr18-22200666-C-A
• NM_005257.6:c.1631C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005257.6(GATA6):​c.1631C>A​(p.Pro544Gln) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: GATA6 NM_005257.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.70

Genes affected

GATA6 (HGNC:4174): (GATA binding protein 6) This gene is a member of a small family of zinc finger transcription factors that play an important role in the regulation of cellular differentiation and organogenesis during vertebrate development. This gene is expressed during early embryogenesis and localizes to endo- and mesodermally derived cells during later embryogenesis and thereby plays an important role in gut, lung, and heart development. Mutations in this gene are associated with several congenital defects. [provided by RefSeq, Mar 2012]

ENSG00000266283 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18903196).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GATA6	NM_005257.6	c.1631C>A	p.Pro544Gln	missense_variant	Exon 7 of 7	ENST00000269216.10	NP_005248.2
GATA6	XM_047437483.1	c.1631C>A	p.Pro544Gln	missense_variant	Exon 7 of 7		XP_047293439.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATA6	ENST00000269216.10	c.1631C>A	p.Pro544Gln	missense_variant	Exon 7 of 7	1	NM_005257.6	ENSP00000269216.3
GATA6	ENST00000581694.1	c.1631C>A	p.Pro544Gln	missense_variant	Exon 6 of 6	1		ENSP00000462313.1
ENSG00000266283	ENST00000583442.1	n.723G>T		non_coding_transcript_exon_variant	Exon 2 of 2	3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Atrioventricular septal defect 5 Uncertain:1

Nov 29, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant has not been reported in the literature in individuals affected with GATA6-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 544 of the GATA6 protein (p.Pro544Gln). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.098
BayesDel_addAF	Uncertain	0.070	D
BayesDel_noAF	Benign	-0.14
CADD	Benign	20
DANN	Uncertain	0.98
DEOGEN2	Benign	0.38	T;T
Eigen	Benign	-0.034
Eigen_PC	Benign	0.14
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Benign	0.72	.;T
M_CAP	Benign	0.033	D
MetaRNN	Benign	0.19	T;T
MetaSVM	Uncertain	0.16	D
MutationAssessor	Benign	-0.16	N;N
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-1.1	N;.
REVEL	Uncertain	0.29
Sift	Benign	0.073	T;.
Sift4G	Benign	0.14	T;T
Polyphen		0.20	B;B
Vest4		0.071
MutPred		0.22		Gain of solvent accessibility (P = 0.0739);Gain of solvent accessibility (P = 0.0739);
MVP		0.82
ClinPred		0.34	T
GERP RS		5.9
Varity_R		0.046
gMVP		0.31

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr18-19780629;