chrX-111681231-T-C

Variant names:

Variant summary

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

The NM_001099922.3(ALG13):c.13T>C(p.Phe5Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000121 in 1,210,771 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 43 hemizygotes in GnomAD. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., 2 hem., cov: 25)

Exomes 𝑓: 0.00012 ( 0 hom. 41 hem. )

Consequence

ALG13
NM_001099922.3 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 5.03

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:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant X-111681231-T-C is Benign according to our data. Variant chrX-111681231-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 516978.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 = 0.000133 (15/112746) while in subpopulation NFE AF= 0.000263 (14/53233). AF 95% confidence interval is 0.000158. There are 0 homozygotes in gnomad4. There are 2 alleles in male gnomad4 subpopulation. Median coverage is 25. This position pass quality control queck.

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALG13	NM_001099922.3 link	c.13T>C	p.Phe5Leu	missense_variant	Exon 1 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.13T>C	p.Phe5Leu	missense_variant	Exon 1 of 27	2	NM_001099922.3	ENSP00000378260.3		Q9NP73-1

Frequencies

GnomAD3 genomes

AF:

0.000133

AC:

AN:

112746

Hom.:

Cov.:

AF XY:

0.0000573

AC XY:

AN XY:

34910

show subpopulations

Gnomad AFR

AF:

0.0000321

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000263

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000928

AC:

AN:

183172

Hom.:

AF XY:

0.0000591

AC XY:

AN XY:

67632

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.000208

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000120

AC:

132

AN:

1098025

Hom.:

Cov.:

AF XY:

0.000113

AC XY:

AN XY:

363383

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000516

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000494

Gnomad4 NFE exome

AF:

0.000147

Gnomad4 OTH exome

AF:

0.000108

GnomAD4 genome

AF:

0.000133

AC:

AN:

112746

Hom.:

Cov.:

AF XY:

0.0000573

AC XY:

AN XY:

34910

show subpopulations

Gnomad4 AFR

AF:

0.0000321

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000263

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000209

Hom.:

Bravo

AF:

0.0000907

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000149

AC:

ExAC

AF:

0.0000577

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Jan 04, 2018

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Developmental and epileptic encephalopathy, 36

Benign:1

Jan 25, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

May 09, 2023

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.85

BayesDel_addAF

Benign

0.0087

BayesDel_noAF

Uncertain

0.050

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.19

.;T;T;.

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.84

T;D;T;D

M_CAP

Pathogenic

0.39

MetaRNN

Uncertain

0.47

T;T;T;T

MetaSVM

Uncertain

-0.021

MutationAssessor

Benign

1.9

L;L;.;.

PrimateAI

Uncertain

0.78

PROVEAN

Pathogenic

-5.0

D;N;.;.

REVEL

Uncertain

0.59

Sift

Pathogenic

0.0

D;D;.;.

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

0.14

B;D;.;.

Vest4

0.58

MutPred

0.56

Loss of catalytic residue at F5 (P = 0.0137);Loss of catalytic residue at F5 (P = 0.0137);Loss of catalytic residue at F5 (P = 0.0137);Loss of catalytic residue at F5 (P = 0.0137);

MVP

0.92

MPC

0.23

ClinPred

0.32

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.60

gMVP

0.56

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

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