9-137011907-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_001606.5(ABCA2):​c.5472C>A​(p.His1824Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,568 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ABCA2
NM_001606.5 missense

Scores

7
9
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.82
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ABCA2. . Gene score misZ 4.9116 (greater than the threshold 3.09). Trascript score misZ 3.725 (greater than threshold 3.09). GenCC has associacion of gene with schizophrenia, intellectual developmental disorder with poor growth and with or without seizures or ataxia.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.866

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABCA2NM_001606.5 linkuse as main transcriptc.5472C>A p.His1824Gln missense_variant 35/49 ENST00000341511.11 NP_001597.2 Q9BZC7-3
ABCA2NM_212533.3 linkuse as main transcriptc.5562C>A p.His1854Gln missense_variant 35/49 NP_997698.1 Q9BZC7-4
ABCA2NM_001411042.1 linkuse as main transcriptc.5469C>A p.His1823Gln missense_variant 34/48 NP_001397971.1
ABCA2XM_047422921.1 linkuse as main transcriptc.5559C>A p.His1853Gln missense_variant 34/48 XP_047278877.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABCA2ENST00000341511.11 linkuse as main transcriptc.5472C>A p.His1824Gln missense_variant 35/495 NM_001606.5 ENSP00000344155.6 Q9BZC7-3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459568
Hom.:
0
Cov.:
84
AF XY:
0.00000138
AC XY:
1
AN XY:
726024
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.92
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.080
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Pathogenic
0.85
.;D;D;.
Eigen
Benign
-0.11
Eigen_PC
Benign
-0.16
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.99
D;D;D;D
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.87
D;D;D;D
MetaSVM
Uncertain
0.15
D
MutationAssessor
Uncertain
2.4
.;M;.;.
PrimateAI
Uncertain
0.75
T
PROVEAN
Pathogenic
-5.9
D;D;D;.
REVEL
Uncertain
0.64
Sift
Uncertain
0.0040
D;D;D;.
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
0.52
.;P;.;.
Vest4
0.85
MutPred
0.38
.;Gain of helix (P = 0.0854);.;.;
MVP
0.87
MPC
1.7
ClinPred
0.98
D
GERP RS
2.3
Varity_R
0.14
gMVP
0.98

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2271862; hg19: chr9-139906359; API