X-111726922-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001099922.3(ALG13):c.1843C>T(p.Leu615Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000107 in 1,209,823 control chromosomes in the GnomAD database, including 1 homozygotes. There are 41 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., 20 hem., cov: 23)

Exomes 𝑓: 0.000060 ( 1 hom. 21 hem. )

Consequence

ALG13
NM_001099922.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.136

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 -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.52).

BP6

Variant X-111726922-C-T is Benign according to our data. Variant chrX-111726922-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 387670.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.136 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000573 (64/111766) while in subpopulation AFR AF= 0.00192 (59/30705). AF 95% confidence interval is 0.00153. There are 0 homozygotes in gnomad4. There are 20 alleles in male gnomad4 subpopulation. Median coverage is 23. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 20 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALG13	NM_001099922.3 link	c.1843C>T	p.Leu615Leu	synonymous_variant	Exon 16 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.1843C>T	p.Leu615Leu	synonymous_variant	Exon 16 of 27	2	NM_001099922.3	ENSP00000378260.3		Q9NP73-1

Frequencies

GnomAD3 genomes

AF:

0.000564

AC:

AN:

111713

Hom.:

Cov.:

AF XY:

0.000590

AC XY:

AN XY:

33881

show subpopulations

Gnomad AFR

AF:

0.00189

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000190

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00844

Gnomad NFE

AF:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000190

AC:

AN:

179220

Hom.:

AF XY:

0.000134

AC XY:

AN XY:

66966

show subpopulations

Gnomad AFR exome

AF:

0.00235

Gnomad AMR exome

AF:

0.0000730

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:

0.0000379

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000601

AC:

AN:

1098057

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

363493

show subpopulations

Gnomad4 AFR exome

AF:

0.00186

Gnomad4 AMR exome

AF:

0.000142

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000831

Gnomad4 OTH exome

AF:

0.0000651

GnomAD4 genome

AF:

0.000573

AC:

AN:

111766

Hom.:

Cov.:

AF XY:

0.000589

AC XY:

AN XY:

33944

show subpopulations

Gnomad4 AFR

AF:

0.00192

Gnomad4 AMR

AF:

0.000189

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000188

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000356

Hom.:

Bravo

AF:

0.000688

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 36

Benign:3

Dec 09, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 09, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Likely 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

- -

ALG13-related disorder

Benign:1

Aug 20, 2020

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This 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

Jun 22, 2021

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.52

CADD

Benign

0.64

DANN

Benign

0.41

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