X-111744768-ACCTCCTCCTCCTCCTCCTCCTCCT-ACCTCCTCCTCCTCCTCCTCCTCCTCCTCCT

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_001099922.3(ALG13):​c.2830_2835dupCCTCCT​(p.Pro944_Pro945dup) variant causes a conservative inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000419 in 594,036 control chromosomes in the GnomAD database, including 1 homozygotes. There are 31 hemizygotes in GnomAD. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00094 ( 0 hom., 1 hem., cov: 18)
Exomes 𝑓: 0.00038 ( 1 hom. 30 hem. )

Consequence

ALG13
NM_001099922.3 conservative_inframe_insertion

Scores

Not classified

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.159
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6
Variant X-111744768-A-ACCTCCT is Benign according to our data. Variant chrX-111744768-A-ACCTCCT is described in ClinVar as [Likely_benign]. Clinvar id is 700610.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000942 (35/37147) while in subpopulation NFE AF= 0.00136 (27/19912). AF 95% confidence interval is 0.000956. There are 0 homozygotes in gnomad4. There are 1 alleles in male gnomad4 subpopulation. Median coverage is 18. This position pass quality control queck.
BS2
High Hemizygotes in GnomAdExome4 at 30 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALG13NM_001099922.3 linkuse as main transcriptc.2830_2835dupCCTCCT p.Pro944_Pro945dup conservative_inframe_insertion 24/27 ENST00000394780.8 NP_001093392.1 Q9NP73-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALG13ENST00000394780.8 linkuse as main transcriptc.2830_2835dupCCTCCT p.Pro944_Pro945dup conservative_inframe_insertion 24/272 NM_001099922.3 ENSP00000378260.3 Q9NP73-1

Frequencies

GnomAD3 genomes
AF:
0.000942
AC:
35
AN:
37151
Hom.:
0
Cov.:
18
AF XY:
0.000140
AC XY:
1
AN XY:
7145
show subpopulations
Gnomad AFR
AF:
0.000503
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000797
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0110
Gnomad NFE
AF:
0.00136
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000692
AC:
23
AN:
33243
Hom.:
1
AF XY:
0.000176
AC XY:
1
AN XY:
5669
show subpopulations
Gnomad AFR exome
AF:
0.000714
Gnomad AMR exome
AF:
0.000957
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00107
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000384
AC:
214
AN:
556889
Hom.:
1
Cov.:
24
AF XY:
0.000189
AC XY:
30
AN XY:
158355
show subpopulations
Gnomad4 AFR exome
AF:
0.000346
Gnomad4 AMR exome
AF:
0.000727
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000325
Gnomad4 SAS exome
AF:
0.000255
Gnomad4 FIN exome
AF:
0.0000538
Gnomad4 NFE exome
AF:
0.000404
Gnomad4 OTH exome
AF:
0.000369
GnomAD4 genome
AF:
0.000942
AC:
35
AN:
37147
Hom.:
0
Cov.:
18
AF XY:
0.000140
AC XY:
1
AN XY:
7145
show subpopulations
Gnomad4 AFR
AF:
0.000503
Gnomad4 AMR
AF:
0.000794
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00136
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsMar 27, 2024This 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
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 21, 2024- -
ALG13-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJan 08, 2021This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMay 01, 2024ALG13: BP3 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs56717389; hg19: chrX-110987996; API