rs76647066

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_133642.5(LARGE1):​c.1452-28C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00733 in 1,544,884 control chromosomes in the GnomAD database, including 709 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.039 ( 351 hom., cov: 33)
Exomes 𝑓: 0.0039 ( 358 hom. )

Consequence

LARGE1
NM_133642.5 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.0140

Publications

0 publications found
Variant links:
Genes affected
LARGE1 (HGNC:6511): (LARGE xylosyl- and glucuronyltransferase 1) This gene encodes a member of the N-acetylglucosaminyltransferase gene family. It encodes a glycosyltransferase which participates in glycosylation of alpha-dystroglycan, and may carry out the synthesis of glycoprotein and glycosphingolipid sugar chains. It may also be involved in the addition of a repeated disaccharide unit. The protein encoded by this gene is the glycotransferase that adds the final xylose and glucuronic acid to alpha-dystroglycan and thereby allows alpha-dystroglycan to bind ligands including laminin 211 and neurexin. Mutations in this gene cause several forms of congenital muscular dystrophy characterized by cognitive disability and abnormal glycosylation of alpha-dystroglycan. Alternative splicing of this gene results in multiple transcript variants that encode the same protein. [provided by RefSeq, May 2018]
LARGE1 Gene-Disease associations (from GenCC):
  • muscular dystrophy-dystroglycanopathy type B6
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A6
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
  • congenital muscular dystrophy with intellectual disability
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • muscular dystrophy-dystroglycanopathy, type A
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 22-33304535-G-A is Benign according to our data. Variant chr22-33304535-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 95165.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.132 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LARGE1NM_133642.5 linkc.1452-28C>T intron_variant Intron 11 of 14 ENST00000397394.8 NP_598397.1 O95461-1X5DR28

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LARGE1ENST00000397394.8 linkc.1452-28C>T intron_variant Intron 11 of 14 5 NM_133642.5 ENSP00000380549.2 O95461-1

Frequencies

GnomAD3 genomes
AF:
0.0385
AC:
5860
AN:
152172
Hom.:
348
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.135
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0130
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000309
Gnomad OTH
AF:
0.0302
GnomAD2 exomes
AF:
0.00981
AC:
1491
AN:
151998
AF XY:
0.00745
show subpopulations
Gnomad AFR exome
AF:
0.144
Gnomad AMR exome
AF:
0.00639
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000247
Gnomad OTH exome
AF:
0.00340
GnomAD4 exome
AF:
0.00390
AC:
5435
AN:
1392594
Hom.:
358
Cov.:
32
AF XY:
0.00343
AC XY:
2355
AN XY:
686804
show subpopulations
African (AFR)
AF:
0.142
AC:
4522
AN:
31758
American (AMR)
AF:
0.00698
AC:
254
AN:
36400
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24728
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36098
South Asian (SAS)
AF:
0.000464
AC:
37
AN:
79726
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
43262
Middle Eastern (MID)
AF:
0.00291
AC:
12
AN:
4126
European-Non Finnish (NFE)
AF:
0.000119
AC:
128
AN:
1078732
Other (OTH)
AF:
0.00834
AC:
482
AN:
57764
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
244
487
731
974
1218
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
136
272
408
544
680
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0386
AC:
5884
AN:
152290
Hom.:
351
Cov.:
33
AF XY:
0.0374
AC XY:
2788
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.135
AC:
5599
AN:
41540
American (AMR)
AF:
0.0129
AC:
198
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.000309
AC:
21
AN:
68020
Other (OTH)
AF:
0.0299
AC:
63
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
267
534
802
1069
1336
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
54
108
162
216
270
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0173
Hom.:
51
Bravo
AF:
0.0439
Asia WGS
AF:
0.00837
AC:
29
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Nov 15, 2012
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jul 15, 2018
GeneDx
Significance: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
-0.85
CADD
Benign
1.0
DANN
Benign
0.67
PhyloP100
-0.014
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs76647066; hg19: chr22-33700521; API