rs150880597

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_001003787.4(STRADA):​c.1184G>A​(p.Arg395His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000514 in 1,614,138 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 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. R395C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00053 ( 1 hom. )

Consequence

STRADA
NM_001003787.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 2.84

Publications

4 publications found
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 Gene-Disease associations (from GenCC):
  • polyhydramnios, megalencephaly, and symptomatic epilepsy
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.05462402).
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000368 (56/152270) while in subpopulation NFE AF = 0.000691 (47/68016). AF 95% confidence interval is 0.000534. There are 0 homozygotes in GnomAd4. There are 16 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STRADANM_001003787.4 linkc.1184G>A p.Arg395His missense_variant Exon 13 of 13 ENST00000336174.12 NP_001003787.1 Q7RTN6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STRADAENST00000336174.12 linkc.1184G>A p.Arg395His missense_variant Exon 13 of 13 1 NM_001003787.4 ENSP00000336655.6 Q7RTN6-1
ENSG00000125695ENST00000580553.1 linkn.*1098G>A non_coding_transcript_exon_variant Exon 12 of 12 5 ENSP00000464100.1 J3QR89
ENSG00000125695ENST00000580553.1 linkn.*1098G>A 3_prime_UTR_variant Exon 12 of 12 5 ENSP00000464100.1 J3QR89

Frequencies

GnomAD3 genomes
AF:
0.000368
AC:
56
AN:
152152
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.000691
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000358
AC:
90
AN:
251438
AF XY:
0.000383
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000492
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000607
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000529
AC:
774
AN:
1461868
Hom.:
1
Cov.:
31
AF XY:
0.000517
AC XY:
376
AN XY:
727238
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.000470
AC:
21
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000647
AC:
720
AN:
1111994
Other (OTH)
AF:
0.000497
AC:
30
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
47
95
142
190
237
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
26
52
78
104
130
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000368
AC:
56
AN:
152270
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74442
show subpopulations
African (AFR)
AF:
0.0000962
AC:
4
AN:
41568
American (AMR)
AF:
0.000327
AC:
5
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000691
AC:
47
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000627
Hom.:
0
Bravo
AF:
0.000374
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00130
AC:
5
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000930
AC:
8
ExAC
AF:
0.000371
AC:
45
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00109
EpiControl
AF:
0.000711

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Jan 10, 2023
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

BP4 -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Polyhydramnios, megalencephaly, and symptomatic epilepsy Uncertain:2
Dec 29, 2023
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 395 of the STRADA protein (p.Arg395His). This variant is present in population databases (rs150880597, gnomAD 0.06%). 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: 536755). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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
-0.31
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
21
DANN
Benign
0.91
DEOGEN2
Benign
0.051
.;.;T;.;.;.;.;.
Eigen
Benign
-0.15
Eigen_PC
Benign
0.026
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.95
D;.;D;D;.;D;.;D
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.055
T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.77
T
MutationAssessor
Benign
1.2
.;.;L;.;.;.;.;.
PhyloP100
2.8
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
0.040
.;.;N;.;N;.;.;.
REVEL
Benign
0.15
Sift
Benign
0.35
.;.;T;.;T;.;.;.
Sift4G
Benign
0.59
.;.;T;.;T;.;.;.
Polyphen
0.014, 0.0080
.;B;B;B;.;.;.;.
Vest4
0.11, 0.11
MVP
0.86
MPC
0.54
ClinPred
0.040
T
GERP RS
5.0
Varity_R
0.18
gMVP
0.29
Mutation Taster
=80/20
polymorphism

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

Other links and lift over

dbSNP: rs150880597; hg19: chr17-61781071; API