19-46746379-G-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_013403.3(STRN4):c.52C>A(p.Arg18Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000887 in 1,127,544 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R18C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000048 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000031 ( 0 hom. )

Consequence

STRN4
NM_013403.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.19

Publications

1 publications found

Variant links:

Genes affected

STRN4 (HGNC:15721): (striatin 4) Enables armadillo repeat domain binding activity and protein phosphatase 2A binding activity. Part of FAR/SIN/STRIPAK complex. [provided by Alliance of Genome Resources, Apr 2022]

STRN4 links:

FKRP (HGNC:17997): (fukutin related protein) This gene encodes a protein which is targeted to the medial Golgi apparatus and is necessary for posttranslational modification of dystroglycan. Mutations in this gene have been associated with congenital muscular dystrophy, cognitive disability, and cerebellar cysts. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been determined. [provided by RefSeq, Oct 2008]

FKRP Gene-Disease associations (from GenCC):

autosomal recessive limb-girdle muscular dystrophy type 2I
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Ambry Genetics
muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A5
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Genomics England PanelApp, Ambry Genetics
muscular dystrophy-dystroglycanopathy type B5
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Myriad Women’s Health
myopathy caused by variation in FKRP
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
congenital muscular dystrophy with cerebellar involvement
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
congenital muscular dystrophy with intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
congenital muscular dystrophy without intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
muscle-eye-brain disease
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
muscular dystrophy-dystroglycanopathy, type A
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

FKRP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.11443749).

BS2

High AC in GnomAd4 at 7 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_013403.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
STRN4	NM_013403.3	MANE Select	c.52C>A	p.Arg18Ser	missense	Exon 1 of 18	NP_037535.2	Q9NRL3-1
FKRP	NM_024301.5	MANE Select	c.-253+289G>T		intron	N/A	NP_077277.1	Q9H9S5
STRN4	NM_001039877.2		c.52C>A	p.Arg18Ser	missense	Exon 1 of 18	NP_001034966.1	Q9NRL3-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
STRN4	ENST00000263280.11	TSL:1 MANE Select	c.52C>A	p.Arg18Ser	missense	Exon 1 of 18	ENSP00000263280.4	Q9NRL3-1
FKRP	ENST00000318584.10	TSL:1 MANE Select	c.-253+289G>T		intron	N/A	ENSP00000326570.4	Q9H9S5
FKRP	ENST00000929289.1		c.-1179G>T		5_prime_UTR_premature_start_codon_gain	Exon 1 of 4	ENSP00000599348.1

Frequencies

GnomAD3 genomes

AF:

0.0000476

AC:

AN:

147038

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:

0.000111

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000907

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000306

AC:

AN:

980506

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

461524

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

19444

American (AMR)

AF:

0.00

AC:

AN:

5246

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

10074

East Asian (EAS)

AF:

0.00

AC:

AN:

16620

South Asian (SAS)

AF:

0.00

AC:

AN:

18592

European-Finnish (FIN)

AF:

0.000134

AC:

AN:

14954

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2396

European-Non Finnish (NFE)

AF:

0.00000117

AC:

AN:

856716

Other (OTH)

AF:

0.00

AC:

AN:

36464

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.608

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000476

AC:

AN:

147038

Hom.:

Cov.:

AF XY:

0.0000279

AC XY:

AN XY:

71712

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

40552

American (AMR)

AF:

0.00

AC:

AN:

14898

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3416

East Asian (EAS)

AF:

0.00

AC:

AN:

5022

South Asian (SAS)

AF:

0.00

AC:

AN:

4780

European-Finnish (FIN)

AF:

0.000111

AC:

AN:

9034

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.0000907

AC:

AN:

66120

Other (OTH)

AF:

0.00

AC:

AN:

2020

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000432

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.017

Eigen

Benign

-0.95

Eigen_PC

Benign

-0.89

FATHMM_MKL

Benign

0.023

LIST_S2

Benign

0.54

M_CAP

Pathogenic

0.69

MetaRNN

Benign

0.11

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.0

PhyloP100

1.2

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

0.34

REVEL

Benign

0.094

Sift

Benign

0.61

Sift4G

Benign

1.0

Polyphen

0.22

Vest4

0.16

MutPred

0.21

Gain of glycosylation at R18 (P = 0.0039)

MVP

0.43

MPC

0.91

ClinPred

0.15

GERP RS

2.4

PromoterAI

-0.036

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.18

gMVP

0.51

Mutation Taster

=80/20

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over