chr9-104831048-C-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PP3_StrongPP5_Moderate

The NM_005502.4(ABCA1):c.1769G>T(p.Trp590Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000123 in 1,613,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 29)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

ABCA1
NM_005502.4 missense

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 7.91

Variant links:

Genes affected

ABCA1 (HGNC:29): (ATP binding cassette subfamily A member 1) 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. With cholesterol as its substrate, this protein functions as a cholesteral efflux pump in the cellular lipid removal pathway. Mutations in both alleles of this gene cause Tangier disease and familial high-density lipoprotein (HDL) deficiency. [provided by RefSeq, Sep 2019]

ABCA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1

In a mutagenesis_site 90-95% reduction in phospholipid and cholesterol efflux but no effect on localization to cell membrane; when associated with K-583. (size 0) in uniprot entity ABCA1_HUMAN

PP3

MetaRNN computational evidence supports a deleterious effect, 0.96

PP5

Variant 9-104831048-C-A is Pathogenic according to our data. Variant chr9-104831048-C-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3340411.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr9-104831048-C-A is described in UniProt as null. Variant chr9-104831048-C-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCA1	NM_005502.4 link	c.1769G>T	p.Trp590Leu	missense_variant	Exon 14 of 50	ENST00000374736.8	NP_005493.2	O95477B7XCW9B2RUU2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCA1	ENST00000374736.8 link	c.1769G>T	p.Trp590Leu	missense_variant	Exon 14 of 50	1	NM_005502.4	ENSP00000363868.3		O95477
ABCA1	ENST00000678995.1 link	c.1769G>T	p.Trp590Leu	missense_variant	Exon 14 of 50			ENSP00000504612.1		A0A7I2V5U0

Frequencies

GnomAD3 genomes

AF:

0.0000659

AC:

AN:

151748

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000485

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000557

AC:

AN:

251454

Hom.:

AF XY:

0.0000736

AC XY:

AN XY:

135900

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000879

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000129

AC:

189

AN:

1461864

Hom.:

Cov.:

AF XY:

0.000122

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000146

Gnomad4 OTH exome

AF:

0.000331

GnomAD4 genome

AF:

0.0000659

AC:

AN:

151748

Hom.:

Cov.:

AF XY:

0.0000945

AC XY:

AN XY:

74082

show subpopulations

Gnomad4 AFR

AF:

0.0000485

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000101

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Sep 06, 2023

Published functional studies demonstrate a damaging effect: normal to reduced cell surface expression, but defective cholesterol efflux activity as compared to wild type (Cohen et al., 2004; Kiss et al., 2007; Sadananda et al., 2015); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 35974019, 25215231, 36088354, 15297675, 17303779, 17113061, 15262183, 28870971, 29150341, 32041611, 31980526, 26255038, 30333156, 12407001) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.64

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.51

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.80

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

M_CAP

Uncertain

0.28

MetaRNN

Pathogenic

0.96

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

3.0

PrimateAI

Pathogenic

0.80

PROVEAN

Pathogenic

-7.9

REVEL

Pathogenic

0.87

Sift

Benign

0.26

Sift4G

Benign

0.28

Polyphen

0.97

Vest4

0.96

MVP

0.99

MPC

0.32

ClinPred

0.76

GERP RS

5.9

Varity_R

0.77

gMVP

0.93

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

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