Genetic Variant ABCA2:p.Ala2402Pro (chr9-137008487-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_001606.5(ABCA2):c.7204G>C(p.Ala2402Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A2402V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ABCA2
NM_001606.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.83

Publications

0 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: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
schizophrenia
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ABCA2 links:

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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=0.29797304).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001606.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ABCA2	NM_001606.5	MANE Select	c.7204G>C	p.Ala2402Pro	missense	Exon 48 of 49	NP_001597.2
ABCA2	NM_212533.3		c.7294G>C	p.Ala2432Pro	missense	Exon 48 of 49	NP_997698.1	Q9BZC7-4
ABCA2	NM_001411042.1		c.7201G>C	p.Ala2401Pro	missense	Exon 47 of 48	NP_001397971.1	Q9BZC7-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ABCA2	ENST00000341511.11	TSL:5 MANE Select	c.7204G>C	p.Ala2402Pro	missense	Exon 48 of 49	ENSP00000344155.6	Q9BZC7-3
ABCA2	ENST00000459850.5	TSL:1	n.7414G>C		non_coding_transcript_exon	Exon 46 of 47
ABCA2	ENST00000464157.1	TSL:1	n.194G>C		non_coding_transcript_exon	Exon 2 of 2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000546

AC:

AN:

183298

AF XY:

0.0000101

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000129

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1420698

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

703226

African (AFR)

AF:

0.00

AC:

AN:

32622

American (AMR)

AF:

0.00

AC:

AN:

38578

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25416

East Asian (EAS)

AF:

0.00

AC:

AN:

37574

South Asian (SAS)

AF:

0.00

AC:

AN:

81376

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48840

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5732

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1091738

Other (OTH)

AF:

0.00

AC:

AN:

58822

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Uncertain

0.058

BayesDel_noAF

Benign

-0.16

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

Eigen

Benign

-0.33

Eigen_PC

Benign

-0.22

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.84

M_CAP

Uncertain

0.13

MetaRNN

Benign

0.30

MetaSVM

Benign

-0.64

MutationAssessor

Benign

1.4

PhyloP100

4.8

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-0.59

REVEL

Benign

0.29

Sift

Pathogenic

0.0

Sift4G

Benign

0.083

Polyphen

0.053

Vest4

0.69

MutPred

0.27

Loss of sheet (P = 7e-04)

MVP

0.51

MPC

0.88

ClinPred

0.68

GERP RS

3.8

Varity_R

0.31

gMVP

0.59

Mutation Taster

=83/17

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over