chrX-111708062-C-T

Position:

chrX-111708062-C-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_001099922.3(ALG13):c.419C>T(p.Ala140Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000207 in 1,208,584 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 9 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 2 hem., cov: 22)

Exomes 𝑓: 0.000021 ( 0 hom. 7 hem. )

Consequence

ALG13
NM_001099922.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 1.23

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:

ALG13-AS1 (HGNC:41277): (ALG13 antisense RNA 1)

ALG13-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19488844).

BP6

Variant X-111708062-C-T is Benign according to our data. Variant chrX-111708062-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 388212.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}.

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ALG13	NM_001099922.3 linkuse as main transcript	c.419C>T	p.Ala140Val	missense_variant	4/27	ENST00000394780.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ALG13	ENST00000394780.8 linkuse as main transcript	c.419C>T	p.Ala140Val	missense_variant	4/27	2	NM_001099922.3	A2	Q9NP73-1
ALG13-AS1	ENST00000430794.1 linkuse as main transcript	n.107-1325G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000179

AC:

AN:

111821

Hom.:

Cov.:

AF XY:

0.0000588

AC XY:

AN XY:

33987

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000376

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000228

AC:

AN:

175454

Hom.:

AF XY:

0.0000473

AC XY:

AN XY:

63482

show subpopulations

Gnomad AFR exome

AF:

0.0000819

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:

0.0000388

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000210

AC:

AN:

1096763

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

362303

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000273

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000179

AC:

AN:

111821

Hom.:

Cov.:

AF XY:

0.0000588

AC XY:

AN XY:

33987

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000376

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000182

AC:

ExAC

AF:

0.0000332

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jul 27, 2016

A variant of uncertain significance has been identified in the ALG13 gene. The A140V variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. It was not observed with any significant frequency in approximately 5,200 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project. The A140V variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. This substitution occurs at a position that is not conserved. However, in silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -

Developmental and epileptic encephalopathy, 36

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 17, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.22

T;.;.;.;.

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.68

T;T;.;T;.

M_CAP

Pathogenic

0.33

MetaRNN

Benign

0.19

T;T;T;T;T

MetaSVM

Benign

-0.86

MutationAssessor

Benign

0.55

N;.;.;.;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.76

N;.;N;.;.

REVEL

Benign

0.089

Sift

Uncertain

0.020

D;.;D;.;.

Sift4G

Benign

0.47

T;T;T;T;T

Polyphen

0.036

B;B;B;B;B

Vest4

0.14

MVP

0.54

MPC

0.17

ClinPred

0.069

GERP RS

4.4

Varity_R

0.13

gMVP

0.16

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