1-27882400-G-A

Variant summary

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

The NM_001105556.3(THEMIS2):c.1076G>A(p.Arg359Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,456,834 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: 0.0000021 (0 hom.)
• Consequence: THEMIS2 NM_001105556.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0800

Genes affected

THEMIS2 (HGNC:16839): (thymocyte selection associated family member 2) Predicted to be involved in T cell receptor signaling pathway and regulation of B cell activation. Predicted to be active in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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=0.04344341).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
THEMIS2	NM_001105556.3	c.1076G>A	p.Arg359Lys	missense_variant	4/6	ENST00000373921.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
THEMIS2	ENST00000373921.8	c.1076G>A	p.Arg359Lys	missense_variant	4/6	5	NM_001105556.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000206 AC: 3 AN: 1456834 Hom.: 0 Cov.: 31 AF XY: 0.00000276 AC XY: 2 AN XY: 723926

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: 0.0000350

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

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

Sep 07, 2022

The c.1076G>A (p.R359K) alteration is located in exon 4 (coding exon 4) of the THEMIS2 gene. This alteration results from a G to A substitution at nucleotide position 1076, causing the arginine (R) at amino acid position 359 to be replaced by a lysine (K). 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	0.074
BayesDel_addAF	Benign	-0.29	T
BayesDel_noAF	Benign	-0.66
Cadd	Benign	2.6
Dann	Benign	0.79
DEOGEN2	Benign	0.0047	T;T
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.031	N
LIST_S2	Benign	0.40	T;T
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.043	T;T
MetaSVM	Benign	-0.95	T
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Benign	0.24	T
PROVEAN	Benign	-0.26	N;N
REVEL	Benign	0.048
Sift	Benign	0.28	T;T
Sift4G	Benign	0.89	T;T
Polyphen		0.0010	.;B
Vest4		0.078
MutPred		0.28		.;Gain of ubiquitination at R359 (P = 0.0104);
MVP		0.014
MPC		0.37
ClinPred		0.10	T
GERP RS		-9.3
Varity_R		0.044
gMVP		0.29

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-28208911;