rs12686004

chr9-104891145-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005502.4(ABCA1):c.67-1950C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0952 in 152,092 control chromosomes in the GnomAD database, including 931 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 0.095 (931 hom., cov: 32)
• Consequence: ABCA1 NM_005502.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.356

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.202 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ABCA1	NM_005502.4	c.67-1950C>T		intron_variant		ENST00000374736.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ABCA1	ENST00000374736.8	c.67-1950C>T		intron_variant		1	NM_005502.4	P1
ABCA1	ENST00000374733.1	c.-114-1950C>T		intron_variant		2
ABCA1	ENST00000423487.6	c.67-1950C>T		intron_variant		2
ABCA1	ENST00000678995.1	c.67-1950C>T		intron_variant

Frequencies

GnomAD3 genomes AF: 0.0952 AC: 14465 AN: 151972 Hom.: 932 Cov.: 32

Gnomad AFR AF: 0.0230

Gnomad AMI AF: 0.0593

Gnomad AMR AF: 0.114

Gnomad ASJ AF: 0.141

Gnomad EAS AF: 0.183

Gnomad SAS AF: 0.213

Gnomad FIN AF: 0.0991

Gnomad MID AF: 0.0854

Gnomad NFE AF: 0.117

Gnomad OTH AF: 0.0969

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

GnomAD4 genome AF: 0.0952 AC: 14476 AN: 152092 Hom.: 931 Cov.: 32 AF XY: 0.0971 AC XY: 7217 AN XY: 74360

Gnomad4 AFR AF: 0.0229

Gnomad4 AMR AF: 0.114

Gnomad4 ASJ AF: 0.141

Gnomad4 EAS AF: 0.183

Gnomad4 SAS AF: 0.213

Gnomad4 FIN AF: 0.0991

Gnomad4 NFE AF: 0.117

Gnomad4 OTH AF: 0.102

Alfa AF: 0.119 Hom.: 2479

Bravo AF: 0.0920

Asia WGS AF: 0.199 AC: 689 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
Cadd	Benign	4.4
Dann	Benign	0.30

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

Other links and lift over

dbSNP: rs12686004; hg19: chr9-107653426;