19-1063444-A-T

Variant names:

• chr19-1063444-A-T
• rs4147929
• NM_019112.4:c.5713-100A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_019112.4(ABCA7):​c.5713-100A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 29)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ABCA7 NM_019112.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.35
• Publications: 154 publications found

Genes affected

ABCA7 (HGNC:37): (ATP binding cassette subfamily A member 7) The 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 intra-cellular 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 full transporter has been detected predominantly in myelo-lymphatic tissues with the highest expression in peripheral leukocytes, thymus, spleen, and bone marrow. The function of this protein is not yet known; however, the expression pattern suggests a role in lipid homeostasis in cells of the immune system. [provided by RefSeq, Jul 2008]

ABCA7 Gene-Disease associations (from GenCC):

• Alzheimer disease 9

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCA7	NM_019112.4	c.5713-100A>T		intron_variant	Intron 42 of 46	ENST00000263094.11	NP_061985.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCA7	ENST00000263094.11	c.5713-100A>T		intron_variant	Intron 42 of 46	5	NM_019112.4	ENSP00000263094.6

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1332734 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 657792

African (AFR) AF: 0.00 AC: 0 AN: 30620

American (AMR) AF: 0.00 AC: 0 AN: 36600

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 21434

East Asian (EAS) AF: 0.00 AC: 0 AN: 38610

South Asian (SAS) AF: 0.00 AC: 0 AN: 75494

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 36514

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3870

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1033984

Other (OTH) AF: 0.00 AC: 0 AN: 55608

GnomAD4 genome Cov.: 29

Alfa AF: 0.00 Hom.: 13997

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.55
DANN	Benign	0.58
PhyloP100		-3.4

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: rs4147929; hg19: chr19-1063443;