rs748564836

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001606.5(ABCA2):​c.7193C>T​(p.Thr2398Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000139 in 1,580,008 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

ABCA2
NM_001606.5 missense

Scores

1
14
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.49

Publications

1 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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCA2NM_001606.5 linkc.7193C>T p.Thr2398Met missense_variant Exon 48 of 49 ENST00000341511.11 NP_001597.2 Q9BZC7-3
ABCA2NM_212533.3 linkc.7283C>T p.Thr2428Met missense_variant Exon 48 of 49 NP_997698.1 Q9BZC7-4
ABCA2NM_001411042.1 linkc.7190C>T p.Thr2397Met missense_variant Exon 47 of 48 NP_001397971.1
ABCA2XM_047422921.1 linkc.7280C>T p.Thr2427Met 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.7193C>T p.Thr2398Met missense_variant Exon 48 of 49 5 NM_001606.5 ENSP00000344155.6 Q9BZC7-3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152218
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000103
AC:
2
AN:
193880
AF XY:
0.00000953
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000347
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000120
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000133
AC:
19
AN:
1427790
Hom.:
0
Cov.:
42
AF XY:
0.0000141
AC XY:
10
AN XY:
707208
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32880
American (AMR)
AF:
0.0000252
AC:
1
AN:
39702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25522
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38034
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81964
European-Finnish (FIN)
AF:
0.0000203
AC:
1
AN:
49196
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5736
European-Non Finnish (NFE)
AF:
0.0000155
AC:
17
AN:
1095626
Other (OTH)
AF:
0.00
AC:
0
AN:
59130
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.0000197
AC:
3
AN:
152218
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74362
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41454
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000168
AC:
2

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Oct 16, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
-0.020
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.48
.;T;T;.;T
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.93
D;D;D;D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Uncertain
0.66
D;D;D;D;D
MetaSVM
Uncertain
0.53
D
MutationAssessor
Benign
1.8
.;L;.;.;.
PhyloP100
9.5
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-1.7
N;N;N;.;N
REVEL
Uncertain
0.45
Sift
Uncertain
0.0020
D;D;D;.;D
Sift4G
Uncertain
0.0080
D;D;D;D;D
Polyphen
1.0
.;D;.;.;.
Vest4
0.65
MVP
0.71
MPC
0.71
ClinPred
0.74
D
GERP RS
4.1
Varity_R
0.080
gMVP
0.64
Mutation Taster
=77/23
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: rs748564836; hg19: chr9-139902950; API