4-105234055-G-T

Position:

• chr4-105234055-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001127208.3(TET2):​c.113G>T​(p.Ser38Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: TET2 NM_001127208.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.12

Genes affected

TET2 (HGNC:25941): (tet methylcytosine dioxygenase 2) The protein encoded by this gene is a methylcytosine dioxygenase that catalyzes the conversion of methylcytosine to 5-hydroxymethylcytosine. The encoded protein is involved in myelopoiesis, and defects in this gene have been associated with several myeloproliferative disorders. Two variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2011]

TET2-AS1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.29034632).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TET2	NM_001127208.3	c.113G>T	p.Ser38Ile	missense_variant	3/11	ENST00000380013.9
TET2-AS1	NR_126420.1	n.319-56383C>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TET2	ENST00000380013.9	c.113G>T	p.Ser38Ile	missense_variant	3/11	5	NM_001127208.3	A2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 02, 2022

This variant has not been reported in the literature in individuals affected with TET2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces serine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 38 of the TET2 protein (p.Ser38Ile). 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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	0.0038	T
BayesDel_noAF	Benign	-0.23
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.085	.;T;T;T;.;.
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.88	D;D;D;.;D;T
M_CAP	Benign	0.048	D
MetaRNN	Benign	0.29	T;T;T;T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.4	M;.;M;M;.;.
MutationTaster	Benign	0.97	N;N;N;N;N;N;N
PrimateAI	Benign	0.38	T
PROVEAN	Uncertain	-2.4	N;N;N;N;N;D
REVEL	Benign	0.10
Sift	Uncertain	0.0010	D;D;D;D;D;D
Sift4G	Uncertain	0.031	D;D;D;D;D;D
Polyphen		0.99	D;P;P;P;.;.
Vest4		0.46
MutPred		0.21		.;Loss of disorder (P = 0.009);.;.;.;.;
MVP		0.54
MPC		0.41
ClinPred		0.95	D
GERP RS		4.5
Varity_R		0.22
gMVP		0.50

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: chr4-106155212;