Variant 11-45928344-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001300721.2(LARGE2):c.1922T>C(p.Val641Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,914 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

LARGE2
NM_001300721.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67

Variant links:

Genes affected

LARGE2 (HGNC:16522): (LARGE xylosyl- and glucuronyltransferase 2) Predicted to enable dystroglycan binding activity; glucuronosyltransferase activity; and xylosyltransferase activity. Involved in protein O-linked mannosylation. Predicted to be located in intracellular membrane-bounded organelle. Predicted to be active in Golgi apparatus. [provided by Alliance of Genome Resources, Apr 2022]

LARGE2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.824

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LARGE2	NM_001300721.2 linkuse as main transcript	c.1922T>C	p.Val641Ala	missense_variant	13/14	ENST00000401752.6	NP_001287650.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LARGE2	ENST00000401752.6 linkuse as main transcript	c.1922T>C	p.Val641Ala	missense_variant	13/14	1	NM_001300721.2	ENSP00000385235	P2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152220

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251158

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135728

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:

0.0000176

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000246

AC:

AN:

1461694

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

727144

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:

0.0000297

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74366

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 23, 2021

The c.1922T>C (p.V641A) alteration is located in exon 13 (coding exon 12) of the LARGE2 gene. This alteration results from a T to C substitution at nucleotide position 1922, causing the valine (V) at amino acid position 641 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.070

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.38

T;D;D;D

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.76

T;.;.;T

M_CAP

Benign

0.031

MetaRNN

Pathogenic

0.82

D;D;D;D

MetaSVM

Benign

-0.87

MutationAssessor

Uncertain

2.0

.;M;M;M

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-3.8

D;D;D;D

REVEL

Uncertain

0.44

Sift

Benign

0.055

T;T;T;T

Sift4G

Uncertain

0.0020

D;D;D;D

Polyphen

0.99

D;P;P;P

Vest4

0.88

MutPred

0.43

.;Loss of methylation at K640 (P = 0.04);Loss of methylation at K640 (P = 0.04);Loss of methylation at K640 (P = 0.04);

MVP

0.64

MPC

0.53

ClinPred

0.80

GERP RS

5.6

Varity_R

0.50

gMVP

0.85

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