5-156508589-G-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The ENST00000337851.9(SGCD):​c.193-12G>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000239 in 1,548,658 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 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

SGCD
ENST00000337851.9 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001219
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: -0.160
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 Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 5-156508589-G-T is Benign according to our data. Variant chr5-156508589-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 165231.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=3}.
BS1
Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.0000229 (32/1396712) while in subpopulation EAS AF= 0.000127 (5/39290). AF 95% confidence interval is 0.0000495. There are 0 homozygotes in gnomad4_exome. There are 13 alleles in male gnomad4_exome subpopulation. Median coverage is 23. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SGCDNM_000337.6 linkuse as main transcriptc.193-12G>T splice_polypyrimidine_tract_variant, intron_variant ENST00000337851.9 NP_000328.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SGCDENST00000337851.9 linkuse as main transcriptc.193-12G>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_000337.6 ENSP00000338343 P4Q92629-2
SGCDENST00000435422.7 linkuse as main transcriptc.190-12G>T splice_polypyrimidine_tract_variant, intron_variant 1 ENSP00000403003 A1Q92629-1
SGCDENST00000517913.5 linkuse as main transcriptc.193-12G>T splice_polypyrimidine_tract_variant, intron_variant 5 ENSP00000429378 Q92629-3
SGCDENST00000524347.2 linkuse as main transcriptc.*57-12G>T splice_polypyrimidine_tract_variant, intron_variant, NMD_transcript_variant 5 ENSP00000430794

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151836
Hom.:
0
Cov.:
32
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:
0.00
Gnomad OTH
AF:
0.000480
GnomAD3 exomes
AF:
0.00000812
AC:
2
AN:
246406
Hom.:
0
AF XY:
0.0000150
AC XY:
2
AN XY:
133584
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000113
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000229
AC:
32
AN:
1396712
Hom.:
0
Cov.:
23
AF XY:
0.0000186
AC XY:
13
AN XY:
698936
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000127
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000190
Gnomad4 OTH exome
AF:
0.000429
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151946
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74232
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:
0.00
Gnomad4 OTH
AF:
0.00238
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.0000227
Asia WGS
AF:
0.00520
AC:
18
AN:
3474

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:2Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 05, 2017This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Uncertain significance, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpMar 05, 2022- -
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineJul 03, 2014The 193-12G>T variant in SGCD has not been previously reported in individuals wi th cardiomyopathy or in large population studies. This variant is located in the 3' splice region. Computational tools do not suggest an impact to splicing, tho ugh this information is not predictive enough to rule out pathogenicity. In summ ary, the clinical significance of the 193-12G>T variant is uncertain. -
Autosomal recessive limb-girdle muscular dystrophy type 2F;C1847667:Dilated cardiomyopathy 1L Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylMay 23, 2017- -
Autosomal recessive limb-girdle muscular dystrophy type 2F Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
10
DANN
Benign
0.45

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000012
dbscSNV1_RF
Benign
0.0
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: rs727503421; hg19: chr5-155935599; API