rs145518377

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_001099922.3(ALG13):​c.371A>G​(p.Tyr124Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000746 in 1,207,228 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 23 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. Y124Y) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.00033 ( 0 hom., 12 hem., cov: 23)
Exomes š‘“: 0.000048 ( 0 hom. 11 hem. )

Consequence

ALG13
NM_001099922.3 missense

Scores

2
6
8

Clinical Significance

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

Conservation

PhyloP100: 3.88

Publications

1 publications found
Variant links:
Genes affected
ALG13 (HGNC:30881): (ALG13 UDP-N-acetylglucosaminyltransferase subunit) The protein encoded by this gene is a subunit of a bipartite UDP-N-acetylglucosamine transferase. It heterodimerizes with asparagine-linked glycosylation 14 homolog to form a functional UDP-GlcNAc glycosyltransferase that catalyzes the second sugar addition of the highly conserved oligosaccharide precursor in endoplasmic reticulum N-linked glycosylation. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2009]
ALG13 Gene-Disease associations (from GenCC):
  • genetic developmental and epileptic encephalopathy
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • developmental and epileptic encephalopathy, 36
    Inheritance: XL Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • non-syndromic X-linked intellectual disability
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07741922).
BP6
Variant X-111685091-A-G is Benign according to our data. Variant chrX-111685091-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 473117.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00033 (37/111962) while in subpopulation AMR AF = 0.00104 (11/10569). AF 95% confidence interval is 0.000583. There are 0 homozygotes in GnomAd4. There are 12 alleles in the male GnomAd4 subpopulation. Median coverage is 23. This position passed quality control check.
BS2
High Hemizygotes in GnomAd4 at 12 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ALG13NM_001099922.3 linkc.371A>G p.Tyr124Cys missense_variant Exon 3 of 27 ENST00000394780.8 NP_001093392.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ALG13ENST00000394780.8 linkc.371A>G p.Tyr124Cys missense_variant Exon 3 of 27 2 NM_001099922.3 ENSP00000378260.3

Frequencies

GnomAD3 genomes
AF:
0.000331
AC:
37
AN:
111909
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.000813
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00104
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000174
AC:
31
AN:
178246
AF XY:
0.000111
show subpopulations
Gnomad AFR exome
AF:
0.00115
Gnomad AMR exome
AF:
0.000424
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000497
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000484
AC:
53
AN:
1095266
Hom.:
0
Cov.:
29
AF XY:
0.0000305
AC XY:
11
AN XY:
360844
show subpopulations
African (AFR)
AF:
0.000838
AC:
22
AN:
26252
American (AMR)
AF:
0.000290
AC:
10
AN:
34474
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19272
East Asian (EAS)
AF:
0.0000332
AC:
1
AN:
30145
South Asian (SAS)
AF:
0.0000187
AC:
1
AN:
53457
European-Finnish (FIN)
AF:
0.0000247
AC:
1
AN:
40493
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4123
European-Non Finnish (NFE)
AF:
0.0000190
AC:
16
AN:
841061
Other (OTH)
AF:
0.0000435
AC:
2
AN:
45989
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
3
6
10
13
16
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:
0.000330
AC:
37
AN:
111962
Hom.:
0
Cov.:
23
AF XY:
0.000352
AC XY:
12
AN XY:
34134
show subpopulations
African (AFR)
AF:
0.000812
AC:
25
AN:
30800
American (AMR)
AF:
0.00104
AC:
11
AN:
10569
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2646
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3532
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2698
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6077
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
218
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53206
Other (OTH)
AF:
0.00
AC:
0
AN:
1530
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome 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
Alfa
AF:
0.0000735
Hom.:
2
Bravo
AF:
0.000374
ESP6500AA
AF:
0.00130
AC:
5
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000132
AC:
16

ClinVar

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

Submissions by phenotype

not provided Uncertain:2
May 01, 2016
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 12, 2021
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 27535533) -

Inborn genetic diseases Benign:1
Sep 09, 2024
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Developmental and epileptic encephalopathy, 36 Benign:1
Aug 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
0.0084
T
BayesDel_noAF
Pathogenic
0.19
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
.;T;.;.;.;T;.;T;.;.;.
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.91
D;D;D;.;D;D;D;D;.;.;D
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.077
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.68
T
PhyloP100
3.9
PrimateAI
Uncertain
0.53
T
PROVEAN
Pathogenic
-6.9
D;D;.;N;.;.;.;.;.;.;.
REVEL
Uncertain
0.45
Sift
Benign
0.15
T;T;.;T;.;.;.;.;.;.;.
Sift4G
Benign
0.27
T;T;D;D;D;T;T;T;D;T;T
Polyphen
0.016
B;B;B;P;P;.;.;.;P;.;.
Vest4
0.61
MVP
0.97
MPC
0.26
ClinPred
0.036
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.28
gMVP
0.35
Mutation Taster
=96/4
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: rs145518377; hg19: chrX-110928319; API