4-64281049-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001010874.5(TECRL):c.956C>T(p.Thr319Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TECRL NM_001010874.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.95

Genes affected

TECRL (HGNC:27365): (trans-2,3-enoyl-CoA reductase like) The protein encoded by this gene contains a ubiquitin-like domain in the N-terminal region, three transmembrane segments and a C-terminal 3-oxo-5-alpha steroid 4-dehydrogenase domain. The protein belongs to the steroid 5-alpha reductase family. Mutations in this gene result in ventricular tachycardia, catecholaminergic polymorphic, 3. [provided by RefSeq, Apr 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.814

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TECRL	NM_001010874.5	c.956C>T	p.Thr319Ile	missense_variant	11/12	ENST00000381210.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TECRL	ENST00000381210.8	c.956C>T	p.Thr319Ile	missense_variant	11/12	1	NM_001010874.5	P1
TECRL	ENST00000511997.1	c.63+425C>T		intron_variant		1
TECRL	ENST00000507440.5	c.956C>T	p.Thr319Ile	missense_variant	11/12	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Cardiovascular phenotype Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 13, 2021

The p.T319I variant (also known as c.956C>T), located in coding exon 11 of the TECRL gene, results from a C to T substitution at nucleotide position 956. The threonine at codon 319 is replaced by isoleucine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.70
BayesDel_addAF	Uncertain	0.017	T
BayesDel_noAF	Benign	-0.21
Cadd	Pathogenic	28
Dann	Uncertain	1.0
Eigen	Pathogenic	0.68
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Uncertain	0.96	D;D
M_CAP	Benign	0.025	T
MetaRNN	Pathogenic	0.81	D;D
MetaSVM	Benign	-0.74	T
MutationTaster	Benign	0.98	D;D
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-1.2	N;N
REVEL	Benign	0.22
Sift	Uncertain	0.025	D;D
Sift4G	Uncertain	0.0070	D;D
Polyphen		1.0	.;D
Vest4		0.87
MutPred		0.62		Gain of catalytic residue at P321 (P = 0.0314);Gain of catalytic residue at P321 (P = 0.0314);
MVP		0.52
MPC		0.094
ClinPred		0.98	D
GERP RS		4.8
Varity_R		0.19
gMVP		0.80

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: chr4-65146767;