Genetic Variant ATF6B:p.Ser204Ser (chr6-32121077-G-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004381.5(ATF6B):c.612C>A(p.Ser204Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000128 in 1,567,922 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

ATF6B
NM_004381.5 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.116

Publications

40 publications found

Variant links:

Genes affected

ATF6B (HGNC:2349): (activating transcription factor 6 beta) The protein encoded by this gene is a transcription factor in the unfolded protein response (UPR) pathway during ER stress. Either as a homodimer or as a heterodimer with ATF6-alpha, the encoded protein binds to the ER stress response element, interacting with nuclear transcription factor Y to activate UPR target genes. The protein is normally found in the membrane of the endoplasmic reticulum; however, under ER stress, the N-terminal cytoplasmic domain is cleaved from the rest of the protein and translocates to the nucleus. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]

ATF6B links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATF6B	NM_004381.5 link	c.612C>A	p.Ser204Ser	synonymous_variant	Exon 7 of 18	ENST00000375203.8	NP_004372.3	Q99941-1Q6AZW6
ATF6B	NM_001136153.2 link	c.603C>A	p.Ser201Ser	synonymous_variant	Exon 7 of 18		NP_001129625.1	Q99941-2A0A1U9X796

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATF6B	ENST00000375203.8 link	c.612C>A	p.Ser204Ser	synonymous_variant	Exon 7 of 18	1	NM_004381.5	ENSP00000364349.3		Q99941-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152034

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.06e-7

AC:

AN:

1415888

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

700234

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32026

American (AMR)

AF:

0.00

AC:

AN:

38480

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22168

East Asian (EAS)

AF:

0.00

AC:

AN:

39474

South Asian (SAS)

AF:

0.00

AC:

AN:

78148

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51126

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5478

European-Non Finnish (NFE)

AF:

9.17e-7

AC:

AN:

1090678

Other (OTH)

AF:

0.00

AC:

AN:

58310

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.00000658

AC:

AN:

152034

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74250

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41406

American (AMR)

AF:

0.0000656

AC:

AN:

15254

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67994

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

4222

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

0.99

(source)

DANN

Benign

0.30

PhyloP100

-0.12

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over