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GeneBe

rs1060502107

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_024301.5(FKRP):c.820A>G(p.Ile274Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000133 in 1,506,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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. I274M) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 7.4e-7 ( 0 hom. )

Consequence

FKRP
NM_024301.5 missense

Scores

2
3
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.27
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 11 uncertain in NM_024301.5
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19913366).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FKRPNM_024301.5 linkuse as main transcriptc.820A>G p.Ile274Val missense_variant 4/4 ENST00000318584.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FKRPENST00000318584.10 linkuse as main transcriptc.820A>G p.Ile274Val missense_variant 4/41 NM_024301.5 P1
FKRPENST00000391909.7 linkuse as main transcriptc.820A>G p.Ile274Val missense_variant 4/42 P1
FKRPENST00000597339.5 linkuse as main transcriptn.247-5563A>G intron_variant, non_coding_transcript_variant 5
FKRPENST00000600646.5 linkuse as main transcriptn.247+7605A>G intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000660
AC:
1
AN:
151566
Hom.:
0
Cov.:
33
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:
0.0000148
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000881
AC:
1
AN:
113478
Hom.:
0
AF XY:
0.0000161
AC XY:
1
AN XY:
62024
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:
0.0000237
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.38e-7
AC:
1
AN:
1355318
Hom.:
0
Cov.:
32
AF XY:
0.00000150
AC XY:
1
AN XY:
666442
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.40e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000660
AC:
1
AN:
151566
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74002
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:
0.0000148
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.044
T
BayesDel_noAF
Benign
-0.25
Cadd
Benign
11
Dann
Benign
0.84
DEOGEN2
Benign
0.34
T;T
Eigen
Benign
-0.68
Eigen_PC
Benign
-0.57
FATHMM_MKL
Uncertain
0.79
D
M_CAP
Pathogenic
0.62
D
MetaRNN
Benign
0.20
T;T
MetaSVM
Uncertain
0.78
D
MutationAssessor
Benign
0.46
N;N
MutationTaster
Benign
0.72
D;D
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-0.47
N;N
REVEL
Uncertain
0.29
Sift
Benign
0.20
T;T
Sift4G
Benign
0.15
T;T
Polyphen
0.0
B;B
Vest4
0.12
MutPred
0.35
Gain of catalytic residue at I274 (P = 0.0479);Gain of catalytic residue at I274 (P = 0.0479);
MVP
0.64
MPC
0.52
ClinPred
0.044
T
GERP RS
2.0
Varity_R
0.14
gMVP
0.79

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: rs1060502107; hg19: chr19-47259527; API