Genetic Variant ABCA2:n.347C>T (chr9-137008334-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001606.5(ABCA2):c.7275+82C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000328 in 152,244 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 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 2 hom. )

Failed GnomAD Quality Control

Consequence

ABCA2
NM_001606.5 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -6.02

Publications

6 publications found

Variant links:

Genes affected

ABCA2 (HGNC:32): (ATP binding cassette subfamily A member 2) The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ABC1 subfamily. Members of the ABC1 subfamily comprise the only major ABC subfamily found exclusively in multicellular eukaryotes. This protein is highly expressed in brain tissue and may play a role in macrophage lipid metabolism and neural development. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ABCA2 Gene-Disease associations (from GenCC):

intellectual developmental disorder with poor growth and with or without seizures or ataxia
Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
schizophrenia
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ABCA2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-1.03).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
ABCA2	NM_001606.5 link	c.7275+82C>T	intron_variant	Intron 48 of 48	ENST00000341511.11	NP_001597.2	Q9BZC7-3
ABCA2	NM_212533.3 link	c.7365+82C>T	intron_variant	Intron 48 of 48		NP_997698.1	Q9BZC7-4
ABCA2	NM_001411042.1 link	c.7272+82C>T	intron_variant	Intron 47 of 47		NP_001397971.1
ABCA2	XM_047422921.1 link	c.7362+82C>T	intron_variant	Intron 47 of 47		XP_047278877.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCA2	ENST00000341511.11 link	c.7275+82C>T		intron_variant	Intron 48 of 48	5	NM_001606.5	ENSP00000344155.6		Q9BZC7-3

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152126

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:

0.000772

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

GnomAD2 exomes

AF:

0.000224

AC:

AN:

138170

AF XY:

0.000267

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000408

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000931

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000195

Gnomad OTH exome

AF:

0.000483

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000336

AC:

AN:

1338902

Hom.:

Cov.:

AF XY:

0.0000362

AC XY:

AN XY:

663390

show subpopulations

African (AFR)

AF:

0.0000329

AC:

AN:

30434

American (AMR)

AF:

0.000253

AC:

AN:

35630

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24872

East Asian (EAS)

AF:

0.000508

AC:

AN:

35462

South Asian (SAS)

AF:

0.000141

AC:

AN:

77934

European-Finnish (FIN)

AF:

0.00

AC:

AN:

39896

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5600

European-Non Finnish (NFE)

AF:

0.00000290

AC:

AN:

1032822

Other (OTH)

AF:

0.0000533

AC:

AN:

56252

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.529

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41510

American (AMR)

AF:

0.00

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000773

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.545

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

7385

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-1.0

CADD

Benign

0.083

(source)

DANN

Benign

0.86

PhyloP100

-6.0

Mutation Taster

=100/0

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.

chr9-137008334-G-A

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