rs766209304

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_000023.4(SGCA):​c.34G>A​(p.Val12Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000514 in 1,613,438 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict 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: 33)
Exomes 𝑓: 0.000053 ( 1 hom. )

Consequence

SGCA
NM_000023.4 missense

Scores

5
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: -0.293

Publications

0 publications found
Variant links:
Genes affected
SGCA (HGNC:10805): (sarcoglycan alpha) This gene encodes a component of the dystrophin-glycoprotein complex (DGC), which is critical to the stability of muscle fiber membranes and to the linking of the actin cytoskeleton to the extracellular matrix. Its expression is thought to be restricted to striated muscle. Mutations in this gene result in type 2D autosomal recessive limb-girdle muscular dystrophy. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]
SGCA Gene-Disease associations (from GenCC):
  • autosomal recessive limb-girdle muscular dystrophy
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, PanelApp Australia
  • autosomal recessive limb-girdle muscular dystrophy type 2D
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Myriad Women’s Health, Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07700461).
BP6
Variant 17-50166074-G-A is Benign according to our data. Variant chr17-50166074-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 286013.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000023.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SGCA
NM_000023.4
MANE Select
c.34G>Ap.Val12Met
missense
Exon 1 of 10NP_000014.1A0A0S2Z4Q1
SGCA
NM_001135697.3
c.34G>Ap.Val12Met
missense
Exon 1 of 8NP_001129169.1A0A0S2Z4P8
SGCA
NR_135553.2
n.70G>A
non_coding_transcript_exon
Exon 1 of 9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SGCA
ENST00000262018.8
TSL:1 MANE Select
c.34G>Ap.Val12Met
missense
Exon 1 of 10ENSP00000262018.3Q16586-1
SGCA
ENST00000344627.10
TSL:1
c.34G>Ap.Val12Met
missense
Exon 1 of 8ENSP00000345522.6Q16586-2
SGCA
ENST00000952408.1
c.34G>Ap.Val12Met
missense
Exon 1 of 10ENSP00000622467.1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152112
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:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000112
AC:
28
AN:
249082
AF XY:
0.0000964
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000538
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000534
AC:
78
AN:
1461208
Hom.:
1
Cov.:
30
AF XY:
0.0000468
AC XY:
34
AN XY:
726984
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.000425
AC:
19
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26120
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000477
AC:
53
AN:
1111436
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60368
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
5
10
15
20
25
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.0000328
AC:
5
AN:
152230
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41540
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000194
AC:
1
AN:
5164
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68004
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000965
Hom.:
0
Bravo
AF:
0.0000680
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
1
Autosomal recessive limb-girdle muscular dystrophy type 2D (4)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
2.1
DANN
Benign
0.78
DEOGEN2
Uncertain
0.69
D
Eigen
Benign
-0.96
Eigen_PC
Benign
-0.97
FATHMM_MKL
Benign
0.043
N
LIST_S2
Benign
0.59
T
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.077
T
MetaSVM
Uncertain
0.20
D
MutationAssessor
Benign
1.0
L
PhyloP100
-0.29
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.22
N
REVEL
Uncertain
0.32
Sift
Benign
0.041
D
Sift4G
Uncertain
0.019
D
Polyphen
0.0090
B
Vest4
0.11
MVP
0.92
MPC
0.35
ClinPred
0.049
T
GERP RS
0.19
PromoterAI
0.051
Neutral
Varity_R
0.036
gMVP
0.42
Mutation Taster
=100/0
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: rs766209304; hg19: chr17-48243435; COSMIC: COSV108762003; COSMIC: COSV108762003; API