rs771333733

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 1P and 2B. PP2BP4_Moderate

The NM_024301.5(FKRP):​c.11C>G​(p.Thr4Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000716 in 1,606,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. T4A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

FKRP
NM_024301.5 missense

Scores

1
4
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:12

Conservation

PhyloP100: 4.79

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

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.
BP4
Computational evidence support a benign effect (MetaRNN=0.2290588).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024301.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FKRP
NM_024301.5
MANE Select
c.11C>Gp.Thr4Ser
missense
Exon 4 of 4NP_077277.1
FKRP
NM_001039885.3
c.11C>Gp.Thr4Ser
missense
Exon 4 of 4NP_001034974.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FKRP
ENST00000318584.10
TSL:1 MANE Select
c.11C>Gp.Thr4Ser
missense
Exon 4 of 4ENSP00000326570.4
FKRP
ENST00000391909.7
TSL:2
c.11C>Gp.Thr4Ser
missense
Exon 4 of 4ENSP00000375776.2
FKRP
ENST00000908841.1
c.11C>Gp.Thr4Ser
missense
Exon 3 of 3ENSP00000578900.1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000114
AC:
27
AN:
236224
AF XY:
0.000139
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000293
Gnomad ASJ exome
AF:
0.000617
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000655
Gnomad OTH exome
AF:
0.000687
GnomAD4 exome
AF:
0.0000681
AC:
99
AN:
1454608
Hom.:
0
Cov.:
32
AF XY:
0.0000746
AC XY:
54
AN XY:
723760
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33432
American (AMR)
AF:
0.000291
AC:
13
AN:
44614
Ashkenazi Jewish (ASJ)
AF:
0.000615
AC:
16
AN:
26032
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39608
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85914
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47806
Middle Eastern (MID)
AF:
0.000521
AC:
3
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000522
AC:
58
AN:
1111254
Other (OTH)
AF:
0.000150
AC:
9
AN:
60192
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152240
Hom.:
0
Cov.:
33
AF XY:
0.0000941
AC XY:
7
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41460
American (AMR)
AF:
0.000262
AC:
4
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00316
AC:
1
AN:
316
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.000134
Hom.:
0
Bravo
AF:
0.000132
ExAC
AF:
0.0000828
AC:
10
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000594

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
4
-
not provided (4)
-
3
-
not specified (3)
-
1
-
Autosomal recessive limb-girdle muscular dystrophy type 2I (1)
-
1
-
Autosomal recessive limb-girdle muscular dystrophy type 2I;C1847759:Muscular dystrophy-dystroglycanopathy type B5;C3150413:Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A5 (1)
-
1
-
Autosomal recessive limb-girdle muscular dystrophy type 2I;C1847759:Muscular dystrophy-dystroglycanopathy type B5;C3150413:Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A5;C4284790:Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A1 (1)
-
1
-
Cardiovascular phenotype (1)
-
1
-
Walker-Warburg congenital muscular dystrophy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
18
DANN
Benign
0.87
DEOGEN2
Benign
0.19
T
Eigen
Benign
-0.30
Eigen_PC
Benign
-0.043
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.63
T
M_CAP
Pathogenic
0.38
D
MetaRNN
Benign
0.18
T
MetaSVM
Uncertain
0.65
D
MutationAssessor
Benign
0.76
N
PhyloP100
4.8
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-0.26
N
REVEL
Uncertain
0.44
Sift
Benign
0.57
T
Sift4G
Benign
0.42
T
Polyphen
0.0010
B
Vest4
0.17
MutPred
0.12
Gain of glycosylation at T4 (P = 0.0395)
MVP
0.90
MPC
0.61
ClinPred
0.038
T
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.6
Varity_R
0.12
gMVP
0.22
Mutation Taster
=83/17
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: rs771333733; hg19: chr19-47258718; API