19-46756604-C-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_024301.5(FKRP):c.1154C>G(p.Ser385Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000206 in 1,459,128 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. S385L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

FKRP
NM_024301.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.87

Publications

5 publications found

Variant links:

Genes affected

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: Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A5
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Genomics England PanelApp, G2P, Ambry Genetics
muscular dystrophy-dystroglycanopathy type B5
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae)
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: Uncertain_significance. The variant received 5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 46 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: 1.8498 (below the threshold of 3.09). Trascript score misZ: -2.4986 (below the threshold of 3.09). GenCC associations: The gene is linked to autosomal recessive limb-girdle muscular dystrophy type 2I, muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A5, congenital muscular dystrophy with intellectual disability, muscular dystrophy-dystroglycanopathy, type A, muscle-eye-brain disease, congenital muscular dystrophy with cerebellar involvement, myopathy caused by variation in FKRP, muscular dystrophy-dystroglycanopathy type B5, congenital muscular dystrophy without intellectual disability.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.861

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FKRP	NM_024301.5 link	c.1154C>G	p.Ser385Trp	missense_variant	Exon 4 of 4	ENST00000318584.10	NP_077277.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
FKRP	ENST00000318584.10 link	c.1154C>G	p.Ser385Trp	missense_variant	Exon 4 of 4	1	NM_024301.5	ENSP00000326570.4
FKRP	ENST00000391909.7 link	c.1154C>G	p.Ser385Trp	missense_variant	Exon 4 of 4	2		ENSP00000375776.2
FKRP	ENST00000597339.5 link	n.247-5229C>G		intron_variant	Intron 3 of 3	5
FKRP	ENST00000600646.5 link	n.247+7939C>G		intron_variant	Intron 3 of 3	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1459128

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725758

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44156

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25992

East Asian (EAS)

AF:

0.00

AC:

AN:

39606

South Asian (SAS)

AF:

0.00

AC:

AN:

85804

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52892

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111172

Other (OTH)

AF:

0.00

AC:

AN:

60282

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.58

BayesDel_addAF

Pathogenic

0.36

BayesDel_noAF

Pathogenic

0.28

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.79

D;D

Eigen

Pathogenic

0.68

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.84

.;T

M_CAP

Pathogenic

0.70

MetaRNN

Pathogenic

0.86

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.0

M;M

PhyloP100

4.9

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.9

D;D

REVEL

Pathogenic

0.84

Sift

Uncertain

0.0090

D;D

Sift4G

Uncertain

0.0080

D;D

Polyphen

1.0

D;D

Vest4

0.55

MutPred

0.60

Loss of disorder (P = 0.001);Loss of disorder (P = 0.001);

MVP

0.97

MPC

1.9

ClinPred

0.94

GERP RS

5.0

Varity_R

0.45

gMVP

0.87

Mutation Taster

=24/76

disease causing

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over