rs11668878

Variant names:

• chr19-46765116-G-T
• rs11668878
• ENST00000600646.5:n.248-11536G>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000600646.5(FKRP):​n.248-11536G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0505 in 152,186 control chromosomes in the GnomAD database, including 270 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.051 (270 hom., cov: 31)
• Consequence: FKRP ENST00000600646.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.573
• Publications: 19 publications found

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

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0743 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FKRP	ENST00000600646.5	n.248-11536G>T		intron_variant	Intron 3 of 3	3

Frequencies

GnomAD3 genomes AF: 0.0505 AC: 7682 AN: 152070 Hom.: 270 Cov.: 31

Gnomad AFR AF: 0.0137

Gnomad AMI AF: 0.0308

Gnomad AMR AF: 0.0524

Gnomad ASJ AF: 0.0585

Gnomad EAS AF: 0.000577

Gnomad SAS AF: 0.0280

Gnomad FIN AF: 0.0586

Gnomad MID AF: 0.0443

Gnomad NFE AF: 0.0760

Gnomad OTH AF: 0.0677

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0505 AC: 7688 AN: 152186 Hom.: 270 Cov.: 31 AF XY: 0.0501 AC XY: 3730 AN XY: 74408

African (AFR) AF: 0.0137 AC: 568 AN: 41514

American (AMR) AF: 0.0524 AC: 799 AN: 15260

Ashkenazi Jewish (ASJ) AF: 0.0585 AC: 203 AN: 3472

East Asian (EAS) AF: 0.000579 AC: 3 AN: 5184

South Asian (SAS) AF: 0.0282 AC: 136 AN: 4818

European-Finnish (FIN) AF: 0.0586 AC: 622 AN: 10610

Middle Eastern (MID) AF: 0.0544 AC: 16 AN: 294

European-Non Finnish (NFE) AF: 0.0760 AC: 5172 AN: 68018

Other (OTH) AF: 0.0670 AC: 141 AN: 2106

Alfa AF: 0.0681 Hom.: 957

Bravo AF: 0.0492

Asia WGS AF: 0.0160 AC: 55 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	1.2
DANN	Benign	0.46
PhyloP100		0.57

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs11668878; hg19: chr19-47268373;