rs762287154

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BS1_SupportingBS2

The NM_003919.3(SGCE):​c.905A>T​(p.Lys302Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000297 in 1,613,516 control chromosomes in the GnomAD database, including 1 homozygotes. 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. K302N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 1 hom. )

Consequence

SGCE
NM_003919.3 missense

Scores

8
10

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.88

Publications

0 publications found
Variant links:
Genes affected
SGCE (HGNC:10808): (sarcoglycan epsilon) This gene encodes the epsilon member of the sarcoglycan family. Sarcoglycans are transmembrane proteins that are components of the dystrophin-glycoprotein complex, which link the actin cytoskeleton to the extracellular matrix. Unlike other family members which are predominantly expressed in striated muscle, the epsilon sarcoglycan is more broadly expressed. Mutations in this gene are associated with myoclonus-dystonia syndrome. This gene is imprinted, with preferential expression from the paternal allele. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. A pseudogene associated with this gene is located on chromosome 2. [provided by RefSeq, Oct 2016]
CASD1 (HGNC:16014): (CAS1 domain containing 1) Enables N-acetylneuraminate 7-O(or 9-O)-acetyltransferase activity. Involved in carbohydrate metabolic process. Is integral component of Golgi membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.38649654).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000112 (17/152146) while in subpopulation AFR AF = 0.000314 (13/41440). AF 95% confidence interval is 0.000185. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 17 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003919.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SGCE
NM_003919.3
MANE Select
c.905A>Tp.Lys302Ile
missense
Exon 7 of 11NP_003910.1A0A0S2Z4P5
SGCE
NM_001346713.2
c.1013A>Tp.Lys338Ile
missense
Exon 8 of 12NP_001333642.1A0A2R8YGQ3
SGCE
NM_001346715.2
c.1013A>Tp.Lys338Ile
missense
Exon 8 of 11NP_001333644.1A0A2R8Y5J3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SGCE
ENST00000648936.2
MANE Select
c.905A>Tp.Lys302Ile
missense
Exon 7 of 11ENSP00000497130.1O43556-1
SGCE
ENST00000428696.7
TSL:1
c.884A>Tp.Lys295Ile
missense
Exon 7 of 11ENSP00000397536.3A0A2U3TZN7
SGCE
ENST00000447873.6
TSL:1
c.905A>Tp.Lys302Ile
missense
Exon 7 of 10ENSP00000388734.1C9JR67

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152146
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000314
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
250442
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000212
AC:
31
AN:
1461370
Hom.:
1
Cov.:
31
AF XY:
0.0000248
AC XY:
18
AN XY:
726992
show subpopulations
African (AFR)
AF:
0.000508
AC:
17
AN:
33472
American (AMR)
AF:
0.0000448
AC:
2
AN:
44666
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39646
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86214
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53380
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5686
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111820
Other (OTH)
AF:
0.000116
AC:
7
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.453
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.000112
AC:
17
AN:
152146
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.000314
AC:
13
AN:
41440
American (AMR)
AF:
0.000262
AC:
4
AN:
15256
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.519
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000142
Hom.:
0
Bravo
AF:
0.000106
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Myoclonic dystonia 11 (2)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.049
T
BayesDel_noAF
Uncertain
0.050
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.39
T
Eigen
Benign
0.022
Eigen_PC
Benign
0.14
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.39
T
MetaSVM
Uncertain
0.71
D
MutationAssessor
Benign
1.1
L
PhyloP100
3.9
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.53
N
REVEL
Uncertain
0.55
Sift
Benign
0.18
T
Sift4G
Benign
0.20
T
Polyphen
0.60
P
Vest4
0.45
MutPred
0.50
Loss of ubiquitination at K338 (P = 0.0023)
MVP
0.87
MPC
0.51
ClinPred
0.19
T
GERP RS
4.5
PromoterAI
-0.010
Neutral
Varity_R
0.099
gMVP
0.51
Mutation Taster
=63/37
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: rs762287154; hg19: chr7-94230090; COSMIC: COSV107222597; COSMIC: COSV107222597; API