5-156327217-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_000337.6(SGCD):​c.-59G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 152,378 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SGCD
NM_000337.6 5_prime_UTR

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1O:1

Conservation

PhyloP100: 3.14
Variant links:
Genes affected
SGCD (HGNC:10807): (sarcoglycan delta) The protein encoded by this gene is one of the four known components of the sarcoglycan complex, which is a subcomplex of the dystrophin-glycoprotein complex (DGC). DGC forms a link between the F-actin cytoskeleton and the extracellular matrix. This protein is expressed most abundantly in skeletal and cardiac muscle. Mutations in this gene have been associated with autosomal recessive limb-girdle muscular dystrophy and dilated cardiomyopathy. Alternatively spliced transcript variants encoding distinct isoforms have been observed for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000105 (16/152378) while in subpopulation AFR AF= 0.000385 (16/41598). AF 95% confidence interval is 0.000241. There are 0 homozygotes in gnomad4. There are 8 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SGCDNM_000337.6 linkuse as main transcriptc.-59G>A 5_prime_UTR_variant 1/9 ENST00000337851.9
LOC124901120XR_007059016.1 linkuse as main transcriptn.234+20236C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SGCDENST00000337851.9 linkuse as main transcriptc.-59G>A 5_prime_UTR_variant 1/91 NM_000337.6 P4Q92629-2
SGCDENST00000435422.7 linkuse as main transcriptc.-16G>A 5_prime_UTR_variant 1/81 A1Q92629-1
SGCDENST00000517913.5 linkuse as main transcriptc.-43-2317G>A intron_variant 5 Q92629-3
SGCDENST00000524347.2 linkuse as main transcriptc.-59G>A 5_prime_UTR_variant, NMD_transcript_variant 1/65

Frequencies

GnomAD3 genomes
AF:
0.0000722
AC:
11
AN:
152260
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000265
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
104
Hom.:
0
Cov.:
0
AF XY:
0.00
AC XY:
0
AN XY:
74
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152378
Hom.:
0
Cov.:
33
AF XY:
0.000107
AC XY:
8
AN XY:
74510
show subpopulations
Gnomad4 AFR
AF:
0.000385
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000718
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type 2F;C1847667:Dilated cardiomyopathy 1L Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsAug 18, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingCounsylSep 28, 2017- -
Autosomal recessive limb-girdle muscular dystrophy type 2F Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabFeb 08, 2023- -
Dilated cardiomyopathy 1L Benign:1
Likely benign, criteria provided, single submitterclinical testingGenome-Nilou LabFeb 08, 2023- -
not specified Other:1
not provided, no classification providedclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineJan 24, 2012- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
CADD
Benign
16
DANN
Benign
0.88

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs375477247; hg19: chr5-155754227; API