rs2487054

Variant names:

• chr9-104842441-A-C
• rs2487054
• NM_005502.4:c.814-1922T>G

Your query was ambiguous. Multiple possible variants found:

• chr9-104842441-A-C
• chr9-104842441-A-G
• chr9-104842441-A-T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005502.4(ABCA1):​c.814-1922T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.544 in 151,934 control chromosomes in the GnomAD database, including 25,074 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.54 (25074 hom., cov: 31)
• Consequence: ABCA1 NM_005502.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.04
• Publications: 5 publications found

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 Gene-Disease associations (from GenCC):

• hypoalphalipoproteinemia, primary, 1

  Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• Tangier disease

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
• apolipoprotein A-I deficiency

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.0).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.805 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCA1	NM_005502.4	c.814-1922T>G		intron_variant	Intron 8 of 49	ENST00000374736.8	NP_005493.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCA1	ENST00000374736.8	c.814-1922T>G		intron_variant	Intron 8 of 49	1	NM_005502.4	ENSP00000363868.3
ABCA1	ENST00000678995.1	c.814-1922T>G		intron_variant	Intron 8 of 49			ENSP00000504612.1

Frequencies

GnomAD3 genomes AF: 0.543 AC: 82482 AN: 151816 Hom.: 25013 Cov.: 31

Gnomad AFR AF: 0.812

Gnomad AMI AF: 0.503

Gnomad AMR AF: 0.480

Gnomad ASJ AF: 0.418

Gnomad EAS AF: 0.810

Gnomad SAS AF: 0.477

Gnomad FIN AF: 0.363

Gnomad MID AF: 0.506

Gnomad NFE AF: 0.414

Gnomad OTH AF: 0.527

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.544 AC: 82604 AN: 151934 Hom.: 25074 Cov.: 31 AF XY: 0.540 AC XY: 40122 AN XY: 74272

African (AFR) AF: 0.813 AC: 33688 AN: 41454

American (AMR) AF: 0.481 AC: 7333 AN: 15258

Ashkenazi Jewish (ASJ) AF: 0.418 AC: 1451 AN: 3472

East Asian (EAS) AF: 0.809 AC: 4164 AN: 5150

South Asian (SAS) AF: 0.475 AC: 2286 AN: 4808

European-Finnish (FIN) AF: 0.363 AC: 3825 AN: 10548

Middle Eastern (MID) AF: 0.507 AC: 149 AN: 294

European-Non Finnish (NFE) AF: 0.414 AC: 28127 AN: 67932

Other (OTH) AF: 0.533 AC: 1123 AN: 2108

Alfa AF: 0.493 Hom.: 13302

Bravo AF: 0.564

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.15
DANN	Benign	0.46
PhyloP100		-3.0
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs2487054; hg19: chr9-107604722;