18-79410438-G-T

Position:

• chr18-79410438-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001278669.2(NFATC1):​c.163G>T​(p.Ala55Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: NFATC1 NM_001278669.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.52

Genes affected

NFATC1 (HGNC:7775): (nuclear factor of activated T cells 1) The product of this gene is a component of the nuclear factor of activated T cells DNA-binding transcription complex. This complex consists of at least two components: a preexisting cytosolic component that translocates to the nucleus upon T cell receptor (TCR) stimulation, and an inducible nuclear component. Proteins belonging to this family of transcription factors play a central role in inducible gene transcription during immune response. The product of this gene is an inducible nuclear component. It functions as a major molecular target for the immunosuppressive drugs such as cyclosporin A. Multiple alternatively spliced transcript variants encoding distinct isoforms have been identified for this gene. Different isoforms of this protein may regulate inducible expression of different cytokine genes. [provided by RefSeq, Jul 2013]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.03603986).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NFATC1	NM_001278669.2	c.163G>T	p.Ala55Ser	missense_variant	2/10	ENST00000427363.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NFATC1	ENST00000427363.7	c.163G>T	p.Ala55Ser	missense_variant	2/10	1	NM_001278669.2	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459162 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 725946

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 21, 2021

The c.124G>T (p.A42S) alteration is located in exon 2 (coding exon 2) of the NFATC1 gene. This alteration results from a G to T substitution at nucleotide position 124, causing the alanine (A) at amino acid position 42 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.071
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	1.2
DANN	Benign	0.27
DEOGEN2	Benign	0.0025	.;.;T;.;T;.;.;.;.
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.11	N
LIST_S2	Benign	0.79	T;T;T;T;T;T;T;T;T
M_CAP	Benign	0.0070	T
MetaRNN	Benign	0.036	T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.1	L;L;.;L;L;.;.;.;.
MutationTaster	Benign	1.0	N;N;N;N;N;N;N;N;N;N;N
PrimateAI	Benign	0.39	T
PROVEAN	Benign	0.35	N;.;.;N;.;.;.;N;.
REVEL	Benign	0.085
Sift	Benign	0.80	T;.;.;T;.;.;.;T;.
Sift4G	Benign	1.0	T;T;T;T;T;T;T;T;T
Polyphen		0.0030	.;.;.;.;B;.;.;.;.
Vest4		0.057
MutPred		0.12		Gain of glycosylation at A55 (P = 0.0058);Gain of glycosylation at A55 (P = 0.0058);Gain of glycosylation at A55 (P = 0.0058);Gain of glycosylation at A55 (P = 0.0058);Gain of glycosylation at A55 (P = 0.0058);.;.;.;.;
MVP		0.33
MPC		0.21
ClinPred		0.029	T
GERP RS		2.6
Varity_R		0.018
gMVP		0.13

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

Publications

LitVar

Other links and lift over

dbSNP: rs755428183; hg19: chr18-77170438;