Genetic Variant THEMIS2:p.Pro3Leu (chr1-27872579-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001105556.3(THEMIS2):c.8C>T(p.Pro3Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000047 in 1,489,632 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P3S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000045 ( 0 hom. )

Consequence

THEMIS2
NM_001105556.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.14

Variant links:

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]

THEMIS2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
THEMIS2	NM_001105556.3 link	c.8C>T	p.Pro3Leu	missense_variant	Exon 1 of 6	ENST00000373921.8	NP_001099026.1	Q5TEJ8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
THEMIS2	ENST00000373921.8 link	c.8C>T	p.Pro3Leu	missense_variant	Exon 1 of 6	5	NM_001105556.3	ENSP00000363031.3		Q5TEJ8-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152018

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000449

AC:

AN:

1337498

Hom.:

Cov.:

AF XY:

0.00000757

AC XY:

AN XY:

660346

show subpopulations

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:

0.0000133

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000474

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74372

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 22, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.8C>T (p.P3L) alteration is located in exon 1 (coding exon 1) of the THEMIS2 gene. This alteration results from a C to T substitution at nucleotide position 8, causing the proline (P) at amino acid position 3 to be replaced by a leucine (L). 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

0.26

BayesDel_addAF

Benign

-0.072

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.093

.;.;.;.;T;T

Eigen

Uncertain

0.26

Eigen_PC

Benign

0.16

FATHMM_MKL

Benign

0.76

LIST_S2

Uncertain

0.87

D;D;D;D;D;D

M_CAP

Benign

0.085

MetaRNN

Uncertain

0.45

T;T;T;T;T;T

MetaSVM

Benign

-0.57

MutationAssessor

Benign

2.0

M;M;M;.;.;M

PrimateAI

Uncertain

0.66

PROVEAN

Uncertain

-4.0

D;D;D;D;D;D

REVEL

Benign

0.21

Sift

Pathogenic

0.0

D;D;D;D;D;D

Sift4G

Uncertain

0.0040

D;D;D;D;D;D

Polyphen

0.99

D;D;D;.;.;D

Vest4

0.27

MVP

0.59

MPC

0.95

ClinPred

0.99

GERP RS

5.0

Varity_R

0.30

gMVP

0.37

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over