rs539671529

Positions:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001003787.4(STRADA):c.992C>T(p.Thr331Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000075 in 1,612,880 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000078 ( 0 hom. )

Consequence

STRADA
NM_001003787.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.122

Variant links:

Genes affected

STRADA (HGNC:30172): (STE20 related adaptor alpha) The protein encoded by this gene contains a STE20-like kinase domain, but lacks several residues that are critical for catalytic activity, so it is termed a 'pseudokinase'. The protein forms a heterotrimeric complex with serine/threonine kinase 11 (STK11, also known as LKB1) and the scaffolding protein calcium binding protein 39 (CAB39, also known as MO25). The protein activates STK11 leading to the phosphorylation of both proteins and excluding STK11 from the nucleus. The protein is necessary for STK11-induced G1 cell cycle arrest. A mutation in this gene has been shown to result in polyhydramnios, megalencephaly, and symptomatic epilepsy (PMSE) syndrome. Multiple transcript variants encoding different isoforms have been found for this gene. Additional transcript variants have been described but their full-length nature is not known. [provided by RefSeq, Sep 2009]

STRADA links:

ENSG00000125695 (HGNC:):

ENSG00000125695 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.057530463).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STRADA	NM_001003787.4 linkuse as main transcript	c.992C>T	p.Thr331Ile	missense_variant	11/13	ENST00000336174.12	NP_001003787.1	Q7RTN6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
STRADA	ENST00000336174.12 linkuse as main transcript	c.992C>T	p.Thr331Ile	missense_variant	11/13	1	NM_001003787.4	ENSP00000336655.6	Q7RTN6-1
ENSG00000125695	ENST00000580553.1 linkuse as main transcript	n.*906C>T		non_coding_transcript_exon_variant	10/12	5		ENSP00000464100.1	J3QR89
ENSG00000125695	ENST00000580553.1 linkuse as main transcript	n.*906C>T		3_prime_UTR_variant	10/12	5		ENSP00000464100.1	J3QR89

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152156

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000402

AC:

AN:

248820

Hom.:

AF XY:

0.0000370

AC XY:

AN XY:

135082

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000802

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000780

AC:

114

AN:

1460724

Hom.:

Cov.:

AF XY:

0.0000647

AC XY:

AN XY:

726652

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000926

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152156

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74322

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:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000905

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 27, 2022

The c.992C>T (p.T331I) alteration is located in exon 11 (coding exon 10) of the STRADA gene. This alteration results from a C to T substitution at nucleotide position 992, causing the threonine (T) at amino acid position 331 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Polyhydramnios, megalencephaly, and symptomatic epilepsy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 03, 2022

This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 331 of the STRADA protein (p.Thr331Ile). This variant is present in population databases (rs539671529, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with STRADA-related conditions. ClinVar contains an entry for this variant (Variation ID: 536758). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Benign

0.85

DEOGEN2

Benign

0.057

.;.;T;.;.;.;.;.;.;.;.;.;.;.;.

Eigen

Benign

-0.73

Eigen_PC

Benign

-0.62

FATHMM_MKL

Benign

0.54

LIST_S2

Benign

0.77

T;.;T;T;.;T;T;T;T;T;T;T;T;T;T

M_CAP

Benign

0.017

MetaRNN

Benign

0.058

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.94

.;.;L;.;.;.;.;.;.;.;.;.;.;.;.

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.28

.;.;N;.;N;.;.;N;N;.;.;.;.;.;.

REVEL

Benign

0.022

Sift

Benign

0.10

.;.;T;.;T;.;.;D;T;.;.;.;.;.;.

Sift4G

Benign

0.30

.;.;T;.;T;.;.;D;T;.;.;.;.;D;.

Polyphen

0.027, 0.042, 0.091

.;B;B;B;.;.;.;.;B;.;.;.;.;.;.

Vest4

0.28, 0.28, 0.26, 0.074, 0.30

MutPred

0.29

.;.;Loss of glycosylation at T331 (P = 5e-04);.;.;.;.;.;.;.;.;Loss of glycosylation at T331 (P = 5e-04);Loss of glycosylation at T331 (P = 5e-04);.;.;

MVP

0.36

MPC

0.46

ClinPred

0.025

GERP RS

0.36

Varity_R

0.043

gMVP

0.25

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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