Genetic Variant BACH1:c.1777-122G>C (chr21-29342277-G-C) – 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_001186.4(BACH1):c.1777-122G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000402 in 995,876 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: 0.0000036 ( 0 hom. )

Consequence

BACH1
NM_001186.4 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.431

Publications

8 publications found

Variant links:

Genes affected

BACH1 (HGNC:935): (BTB domain and CNC homolog 1) This gene encodes a transcription factor that belongs to the cap'n'collar type of basic region leucine zipper factor family (CNC-bZip). The encoded protein contains broad complex, tramtrack, bric-a-brac/poxvirus and zinc finger (BTB/POZ) domains, which is atypical of CNC-bZip family members. These BTB/POZ domains facilitate protein-protein interactions and formation of homo- and/or hetero-oligomers. When this encoded protein forms a heterodimer with MafK, it functions as a repressor of Maf recognition element (MARE) and transcription is repressed. Multiple alternatively spliced transcript variants have been identified for this gene. [provided by RefSeq, May 2009]

BACH1 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=-0.79).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
BACH1	NM_001186.4 link	c.1777-122G>C	intron_variant	Intron 4 of 4	ENST00000286800.8	NP_001177.1	O14867
BACH1	NM_206866.3 link	c.1777-122G>C	intron_variant	Intron 4 of 4		NP_996749.1	O14867
BACH1	NR_027655.3 link	n.1956-9357G>C	intron_variant	Intron 4 of 7

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
BACH1	ENST00000286800.8 link	c.1777-122G>C	intron_variant	Intron 4 of 4	1	NM_001186.4	ENSP00000286800.3	O14867
BACH1	ENST00000399921.5 link	c.1777-122G>C	intron_variant	Intron 4 of 4	1		ENSP00000382805.1	O14867
BACH1	ENST00000422809.5 link	c.471+12584G>C	intron_variant	Intron 2 of 4	5		ENSP00000416569.1	H7C4B6
BACH1	ENST00000468059.1 link	c.324+12584G>C	intron_variant	Intron 2 of 3	3		ENSP00000470673.1	M0QZP0

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152042

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

GnomAD4 exome

AF:

0.00000356

AC:

AN:

843834

Hom.:

AF XY:

0.00000234

AC XY:

AN XY:

426700

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

19920

American (AMR)

AF:

0.00

AC:

AN:

23294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

16278

East Asian (EAS)

AF:

0.00

AC:

AN:

35748

South Asian (SAS)

AF:

0.00

AC:

AN:

54452

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44840

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2786

European-Non Finnish (NFE)

AF:

0.00000494

AC:

AN:

607672

Other (OTH)

AF:

0.00

AC:

AN:

38844

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.542

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:

152042

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41398

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5204

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10570

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67992

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.79

CADD

Benign

7.1

(source)

DANN

Benign

0.74

PhyloP100

0.43

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over