Genetic Variant B3GAT3:c.*5G>A (chr11-62615696-C-T) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_012200.4(B3GAT3):c.*5G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000601 in 1,612,888 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

B3GAT3
NM_012200.4 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.692

Publications

0 publications found

Variant links:

Genes affected

B3GAT3 (HGNC:923): (beta-1,3-glucuronyltransferase 3) The protein encoded by this gene is a member of the glucuronyltransferase gene family, enzymes that exhibit strict acceptor specificity, recognizing nonreducing terminal sugars and their anomeric linkages. This gene product catalyzes the formation of the glycosaminoglycan-protein linkage by way of a glucuronyl transfer reaction in the final step of the biosynthesis of the linkage region of proteoglycans. A pseudogene of this gene has been identified on chromosome 3. [provided by RefSeq, Dec 2013]

B3GAT3 Gene-Disease associations (from GenCC):

Larsen-like syndrome, B3GAT3 type
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Ambry Genetics
complex neurodevelopmental disorder
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

B3GAT3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 11-62615696-C-T is Benign according to our data. Variant chr11-62615696-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 1213563.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000236 (36/152336) while in subpopulation AFR AF = 0.000818 (34/41578). AF 95% confidence interval is 0.000601. There are 0 homozygotes in GnomAd4. There are 18 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012200.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
B3GAT3	NM_012200.4	MANE Select	c.*5G>A	3_prime_UTR	Exon 5 of 5	NP_036332.2
B3GAT3	NM_001288721.2		c.*5G>A	3_prime_UTR	Exon 6 of 6	NP_001275650.1
B3GAT3	NM_001288722.2		c.*490G>A	3_prime_UTR	Exon 5 of 5	NP_001275651.1	G3V150

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
B3GAT3	ENST00000265471.10	TSL:1 MANE Select	c.*5G>A	3_prime_UTR	Exon 5 of 5	ENSP00000265471.5	O94766-1
B3GAT3	ENST00000532585.5	TSL:1	n.*1135G>A	non_coding_transcript_exon	Exon 6 of 6	ENSP00000432604.1	E9PQ60
B3GAT3	ENST00000532585.5	TSL:1	n.*1135G>A	3_prime_UTR	Exon 6 of 6	ENSP00000432604.1	E9PQ60

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000820

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:

0.000109

AC:

AN:

248166

AF XY:

0.0000818

show subpopulations

Gnomad AFR exome

AF:

0.00125

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000535

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000418

AC:

AN:

1460552

Hom.:

Cov.:

AF XY:

0.0000385

AC XY:

AN XY:

726518

show subpopulations

African (AFR)

AF:

0.000687

AC:

AN:

33478

American (AMR)

AF:

0.0000448

AC:

AN:

44652

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26100

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39672

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86016

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52932

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5570

European-Non Finnish (NFE)

AF:

0.0000288

AC:

AN:

1111788

Other (OTH)

AF:

0.0000331

AC:

AN:

60344

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

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:

0.000236

AC:

AN:

152336

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.000818

AC:

AN:

41578

American (AMR)

AF:

0.00

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2116

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

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:

0.000141

Hom.:

Bravo

AF:

0.000264

Asia WGS

AF:

0.000289

AC:

AN:

3476

EpiCase

AF:

0.00

EpiControl

AF:

0.0000594

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

7.7

(source)

DANN

Benign

0.69

PhyloP100

-0.69

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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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