1-235504210-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_152490.5(B3GALNT2):c.43G>A(p.Ala15Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000268 in 1,453,326 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

B3GALNT2
NM_152490.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 2.09

Publications

0 publications found

Variant links:

Genes affected

B3GALNT2 (HGNC:28596): (beta-1,3-N-acetylgalactosaminyltransferase 2) This gene encodes a member of the glycosyltransferase 31 family. The encoded protein synthesizes GalNAc:beta-1,3GlcNAc, a novel carbohydrate structure, on N- and O-glycans. Alternatively spliced transcript variants that encode different isoforms have been described. [provided by RefSeq, Mar 2013]

B3GALNT2 Gene-Disease associations (from GenCC):

muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 11
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
autosomal recessive non-syndromic intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
muscle-eye-brain disease
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
muscular dystrophy-dystroglycanopathy, type A
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
intellectual disability
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

B3GALNT2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.36881354).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152490.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	B3GALNT2	NM_152490.5	MANE Select	c.43G>A	p.Ala15Thr	missense	Exon 1 of 12	NP_689703.1	Q8NCR0-1
	B3GALNT2	NM_001277155.3		c.43G>A	p.Ala15Thr	missense	Exon 1 of 8	NP_001264084.1	Q8NCR0-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
B3GALNT2	ENST00000366600.8	TSL:1 MANE Select	c.43G>A	p.Ala15Thr	missense	Exon 1 of 12	ENSP00000355559.3	Q8NCR0-1
B3GALNT2	ENST00000313984.3	TSL:1	c.43G>A	p.Ala15Thr	missense	Exon 1 of 8	ENSP00000315678.3	Q8NCR0-2
B3GALNT2	ENST00000954792.1		c.43G>A	p.Ala15Thr	missense	Exon 1 of 13	ENSP00000624851.1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151998

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000152

AC:

AN:

65814

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000171

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000284

AC:

AN:

1301328

Hom.:

Cov.:

AF XY:

0.0000312

AC XY:

AN XY:

641508

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26120

American (AMR)

AF:

0.00

AC:

AN:

23376

Ashkenazi Jewish (ASJ)

AF:

0.0000449

AC:

AN:

22286

East Asian (EAS)

AF:

0.00

AC:

AN:

27398

South Asian (SAS)

AF:

0.00

AC:

AN:

70856

European-Finnish (FIN)

AF:

0.00

AC:

AN:

32298

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3898

European-Non Finnish (NFE)

AF:

0.0000346

AC:

AN:

1041372

Other (OTH)

AF:

0.00

AC:

AN:

53724

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000132

AC:

AN:

151998

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41428

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67928

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000712

Hom.:

Bravo

AF:

0.0000453

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 11 (3)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.0091

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.044

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.78

M_CAP

Pathogenic

0.90

MetaRNN

Benign

0.37

MetaSVM

Benign

-0.33

MutationAssessor

Benign

0.90

PhyloP100

2.1

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.82

REVEL

Benign

0.060

Sift

Benign

0.10

Sift4G

Benign

0.20

Polyphen

0.50

Vest4

0.33

MVP

0.70

MPC

0.32

ClinPred

0.77

GERP RS

4.3

PromoterAI

-0.10

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.26

gMVP

0.50

Mutation Taster

=71/29

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over