NM_001606.5:c.7240G>A

Variant summary

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

The NM_001606.5(ABCA2):​c.7240G>A​(p.Glu2414Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000199 in 1,557,218 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

ABCA2
NM_001606.5 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.75

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

Genome browser will be placed here

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=0.34822437).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCA2NM_001606.5 linkc.7240G>A p.Glu2414Lys missense_variant Exon 48 of 49 ENST00000341511.11 NP_001597.2 Q9BZC7-3
ABCA2NM_212533.3 linkc.7330G>A p.Glu2444Lys missense_variant Exon 48 of 49 NP_997698.1 Q9BZC7-4
ABCA2NM_001411042.1 linkc.7237G>A p.Glu2413Lys missense_variant Exon 47 of 48 NP_001397971.1
ABCA2XM_047422921.1 linkc.7327G>A p.Glu2443Lys missense_variant Exon 47 of 48 XP_047278877.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCA2ENST00000341511.11 linkc.7240G>A p.Glu2414Lys missense_variant Exon 48 of 49 5 NM_001606.5 ENSP00000344155.6 Q9BZC7-3

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152208
Hom.:
0
Cov.:
32
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000614
AC:
1
AN:
162964
AF XY:
0.00
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:
0.0000154
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000206
AC:
29
AN:
1405010
Hom.:
0
Cov.:
42
AF XY:
0.0000159
AC XY:
11
AN XY:
693940
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31998
American (AMR)
AF:
0.00
AC:
0
AN:
36446
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25228
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36366
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79982
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47924
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5706
European-Non Finnish (NFE)
AF:
0.0000259
AC:
28
AN:
1083080
Other (OTH)
AF:
0.0000172
AC:
1
AN:
58280
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000131
AC:
2
AN:
152208
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74342
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000661
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jan 20, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.7330G>A (p.E2444K) alteration is located in exon 48 (coding exon 48) of the ABCA2 gene. This alteration results from a G to A substitution at nucleotide position 7330, causing the glutamic acid (E) at amino acid position 2444 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Uncertain
0.075
D
BayesDel_noAF
Benign
-0.13
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.32
.;T;T;.;T
Eigen
Benign
-0.084
Eigen_PC
Benign
0.052
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
D;D;D;D;D
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.35
T;T;T;T;T
MetaSVM
Uncertain
-0.20
T
MutationAssessor
Benign
0.34
.;N;.;.;.
PhyloP100
7.7
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.48
N;N;N;.;N
REVEL
Uncertain
0.34
Sift
Uncertain
0.027
D;D;D;.;D
Sift4G
Benign
0.068
T;T;T;T;D
Polyphen
0.36
.;B;.;.;.
Vest4
0.29
MutPred
0.36
.;Gain of ubiquitination at E2413 (P = 0.0018);.;.;.;
MVP
0.56
MPC
0.77
ClinPred
0.71
D
GERP RS
4.1
Varity_R
0.15
gMVP
0.35
Mutation Taster
=76/24
polymorphism

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

Other links and lift over

dbSNP: rs1227050658; hg19: chr9-139902903; API