17-68975945-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_080283.4(ABCA9):c.4845G>T(p.Lys1615Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,142 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

ABCA9
NM_080283.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.388

Variant links:

Genes affected

ABCA9 (HGNC:39): (ATP binding cassette subfamily A member 9) This gene is a member of the superfamily of ATP-binding cassette (ABC) transporters and the encoded protein contains two transmembrane domains and two nucleotide binding folds. 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, and White). This gene is a member of the ABC1 subfamily and is clustered with four other ABC1 family members on chromosome 17q24. Transcriptional expression of this gene is induced during monocyte differentiation into macrophages and is suppressed by cholesterol import. [provided by RefSeq, Jul 2008]

ABCA9 links:

ABCA9-AS1 (HGNC:39983): (ABCA9 antisense RNA 1)

ABCA9-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.11309913).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ABCA9	NM_080283.4 linkuse as main transcript	c.4845G>T	p.Lys1615Asn	missense_variant	39/39	ENST00000340001.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ABCA9	ENST00000340001.9 linkuse as main transcript	c.4845G>T	p.Lys1615Asn	missense_variant	39/39	1	NM_080283.4	P1	Q8IUA7-1
ABCA9-AS1	ENST00000630625.1 linkuse as main transcript	n.377+31038C>A		intron_variant, non_coding_transcript_variant		5
ABCA9	ENST00000453985.6 linkuse as main transcript	c.4731G>T	p.Lys1577Asn	missense_variant	38/38	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000400

AC:

AN:

250064

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135122

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000884

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461142

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726790

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:

0.00000360

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000468

Hom.:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 29, 2024

The c.4845G>T (p.K1615N) alteration is located in exon 39 (coding exon 38) of the ABCA9 gene. This alteration results from a G to T substitution at nucleotide position 4845, causing the lysine (K) at amino acid position 1615 to be replaced by an asparagine (N). 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

0.20

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

Cadd

Benign

0.92

Dann

Benign

0.95

DEOGEN2

Benign

0.32

T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.45

T;T

M_CAP

Benign

0.072

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-0.84

MutationAssessor

Uncertain

2.1

M;.

MutationTaster

Benign

1.0

D;N;N

PrimateAI

Benign

0.36

PROVEAN

Uncertain

-3.0

D;.

REVEL

Benign

0.16

Sift

Benign

0.036

D;.

Sift4G

Benign

0.076

T;T

Polyphen

0.0030

B;.

Vest4

0.049

MutPred

0.36

Loss of ubiquitination at K1615 (P = 0.0039);.;

MVP

0.55

MPC

0.13

ClinPred

0.051

GERP RS

-3.3

Varity_R

0.18

gMVP

0.38

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over