rs772766102

Variant names:

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PM4_SupportingBP6_Very_StrongBS1BS2

The NM_001099922.3(ALG13):c.2383_2385delGAA(p.Glu795del) variant causes a conservative inframe deletion change. The variant allele was found at a frequency of 0.000907 in 1,208,532 control chromosomes in the GnomAD database, including 1 homozygotes. There are 330 hemizygotes in GnomAD. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00060 ( 0 hom., 18 hem., cov: 23)

Exomes 𝑓: 0.00094 ( 1 hom. 312 hem. )

Consequence

ALG13
NM_001099922.3 conservative_inframe_deletion

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: 4.48

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PM4

Nonframeshift variant in NON repetitive region in NM_001099922.3. Strenght limited to Supporting due to length of the change: 1aa.

BP6

Variant X-111730405-TGAA-T is Benign according to our data. Variant chrX-111730405-TGAA-T is described in ClinVar as [Likely_benign]. Clinvar id is 412613.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-111730405-TGAA-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000604 (68/112490) while in subpopulation NFE AF= 0.000976 (52/53284). AF 95% confidence interval is 0.000764. There are 0 homozygotes in gnomad4. There are 18 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 18 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALG13	NM_001099922.3 link	c.2383_2385delGAA	p.Glu795del	conservative_inframe_deletion	Exon 20 of 27	ENST00000394780.8	NP_001093392.1	Q9NP73-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALG13	ENST00000394780.8 link	c.2383_2385delGAA	p.Glu795del	conservative_inframe_deletion	Exon 20 of 27	2	NM_001099922.3	ENSP00000378260.3		Q9NP73-1

Frequencies

GnomAD3 genomes

AF:

0.000604

AC:

AN:

112490

Hom.:

Cov.:

AF XY:

0.000519

AC XY:

AN XY:

34654

show subpopulations

Gnomad AFR

AF:

0.0000322

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000283

Gnomad ASJ

AF:

0.00377

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000976

Gnomad OTH

AF:

0.00131

GnomAD3 exomes

AF:

0.000439

AC:

AN:

177526

Hom.:

AF XY:

0.000366

AC XY:

AN XY:

65508

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000735

Gnomad ASJ exome

AF:

0.00324

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000126

Gnomad NFE exome

AF:

0.000613

Gnomad OTH exome

AF:

0.000454

GnomAD4 exome

AF:

0.000938

AC:

1028

AN:

1096042

Hom.:

AF XY:

0.000863

AC XY:

312

AN XY:

361688

show subpopulations

Gnomad4 AFR exome

AF:

0.000152

Gnomad4 AMR exome

AF:

0.0000854

Gnomad4 ASJ exome

AF:

0.00393

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000148

Gnomad4 NFE exome

AF:

0.00107

Gnomad4 OTH exome

AF:

0.000783

GnomAD4 genome

AF:

0.000604

AC:

AN:

112490

Hom.:

Cov.:

AF XY:

0.000519

AC XY:

AN XY:

34654

show subpopulations

Gnomad4 AFR

AF:

0.0000322

Gnomad4 AMR

AF:

0.000283

Gnomad4 ASJ

AF:

0.00377

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000976

Gnomad4 OTH

AF:

0.00131

Alfa

AF:

0.00127

Hom.:

Bravo

AF:

0.000476

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:7

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 03, 2018

Athena Diagnostics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Sep 16, 2022

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

See Variant Classification Assertion Criteria. -

Nov 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ALG13: BS2 -

Developmental and epileptic encephalopathy, 36

Benign:2

Jan 13, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 05, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

Sep 30, 2017

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. -

ALG13-related disorder

Benign:1

Sep 25, 2024

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over