rs1173430388

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM5PP3_Moderate

The NM_024301.5(FKRP):​c.1012G>A​(p.Val338Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000112 in 1,432,292 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. V338L) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

FKRP
NM_024301.5 missense

Scores

9
8
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.28
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 10 uncertain in NM_024301.5
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr19-46756462-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1180605.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.871

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FKRPNM_024301.5 linkuse as main transcriptc.1012G>A p.Val338Met missense_variant 4/4 ENST00000318584.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FKRPENST00000318584.10 linkuse as main transcriptc.1012G>A p.Val338Met missense_variant 4/41 NM_024301.5 P1
FKRPENST00000391909.7 linkuse as main transcriptc.1012G>A p.Val338Met missense_variant 4/42 P1
FKRPENST00000597339.5 linkuse as main transcriptn.247-5371G>A intron_variant, non_coding_transcript_variant 5
FKRPENST00000600646.5 linkuse as main transcriptn.247+7797G>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000104
AC:
2
AN:
192518
Hom.:
0
AF XY:
0.0000190
AC XY:
2
AN XY:
105076
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:
0.0000242
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000112
AC:
16
AN:
1432292
Hom.:
0
Cov.:
32
AF XY:
0.00000846
AC XY:
6
AN XY:
709116
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000121
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000137
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000509
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.69
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.94
D;D
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.94
.;D
M_CAP
Pathogenic
0.57
D
MetaRNN
Pathogenic
0.87
D;D
MetaSVM
Pathogenic
0.92
D
MutationAssessor
Uncertain
2.1
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.90
D
PROVEAN
Benign
-2.2
N;N
REVEL
Pathogenic
0.77
Sift
Uncertain
0.0080
D;D
Sift4G
Uncertain
0.010
D;D
Polyphen
1.0
D;D
Vest4
0.59
MutPred
0.63
Loss of catalytic residue at V338 (P = 0.0037);Loss of catalytic residue at V338 (P = 0.0037);
MVP
0.90
MPC
1.6
ClinPred
0.83
D
GERP RS
4.2
Varity_R
0.70
gMVP
0.87

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1173430388; hg19: chr19-47259719; API