4-48138768-G-A

Position:

• chr4-48138768-G-A

Variant summary

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

The NM_003215.3(TEC):​c.1709C>T​(p.Thr570Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: TEC NM_003215.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.65

Genes affected

TEC (HGNC:11719): (tec protein tyrosine kinase) The protein encoded by this gene belongs to the Tec family of non-receptor protein-tyrosine kinases containing a pleckstrin homology domain. Tec family kinases are involved in the intracellular signaling mechanisms of cytokine receptors, lymphocyte surface antigens, heterotrimeric G-protein coupled receptors, and integrin molecules. They are also key players in the regulation of the immune functions. Tec kinase is an integral component of T cell signaling and has a distinct role in T cell activation. This gene may be associated with myelodysplastic syndrome. [provided by RefSeq, Jul 2008]

ACMG classification

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/exons	MANE	UniProt
TEC	NM_003215.3	c.1709C>T	p.Thr570Ile	missense_variant	17/18	ENST00000381501.8
TEC	XM_047416106.1	c.1982C>T	p.Thr661Ile	missense_variant	17/18
TEC	XM_011513737.3	c.1601C>T	p.Thr534Ile	missense_variant	17/18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TEC	ENST00000381501.8	c.1709C>T	p.Thr570Ile	missense_variant	17/18	1	NM_003215.3	P1
TEC	ENST00000505452.5	c.*1299C>T		3_prime_UTR_variant, NMD_transcript_variant	15/16	5
TEC	ENST00000515146.1	c.*220C>T		3_prime_UTR_variant, NMD_transcript_variant	5/6	3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

EpiCase AF: 0.0000545

EpiControl AF: 0.00

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

May 06, 2024

The c.1709C>T (p.T570I) alteration is located in exon 17 (coding exon 16) of the TEC gene. This alteration results from a C to T substitution at nucleotide position 1709, causing the threonine (T) at amino acid position 570 to be replaced by an isoleucine (I). 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	Uncertain	0.54
BayesDel_addAF	Benign	-0.011	T
BayesDel_noAF	Benign	-0.25
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.85	D
Eigen	Uncertain	0.20
Eigen_PC	Uncertain	0.31
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.023	T
MetaRNN	Uncertain	0.56	D
MetaSVM	Benign	-0.56	T
MutationAssessor	Uncertain	2.6	M
MutationTaster	Benign	0.91	D
PrimateAI	Uncertain	0.50	T
PROVEAN	Uncertain	-3.6	D
REVEL	Benign	0.11
Sift	Uncertain	0.010	D
Sift4G	Uncertain	0.019	D
Polyphen		0.45	B
Vest4		0.40
MutPred		0.49		Gain of glycosylation at Y572 (P = 0.0419);
MVP		0.79
MPC		0.40
ClinPred		0.94	D
GERP RS		5.4
Varity_R		0.37
gMVP		0.52

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: chr4-48140785;