7-48198252-G-A

Variant names:

• chr7-48198252-G-A
• rs573740053
• NM_152701.5:c.179G>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_152701.5(ABCA13):​c.179G>A​(p.Arg60Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000273 in 1,612,136 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000029 (0 hom.)
• Consequence: ABCA13 NM_152701.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.27
• Publications: 6 publications found

Genes affected

ABCA13 (HGNC:14638): (ATP binding cassette subfamily A member 13) In human, the ATP-binding cassette (ABC) family of transmembrane transporters has at least 48 genes and 7 gene subfamilies. This gene is a member of ABC gene subfamily A (ABCA). Genes within the ABCA family typically encode several thousand amino acids. Like other ABC transmembrane transporter proteins, this protein has 12 or more transmembrane alpha-helix domains that likely arrange to form a single central chamber with multiple substrate binding sites. It is also predicted to have two large extracellular domains and two nucleotide binding domains as is typical for ABCA proteins. Alternative splice variants have been described but their biological validity has not been demonstrated.[provided by RefSeq, Mar 2009]

ABCA13 Gene-Disease associations (from GenCC):

• schizophrenia

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCA13	NM_152701.5	c.179G>A	p.Arg60Gln	missense_variant	Exon 3 of 62	ENST00000435803.6	NP_689914.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCA13	ENST00000435803.6	c.179G>A	p.Arg60Gln	missense_variant	Exon 3 of 62	1	NM_152701.5	ENSP00000411096.1
ABCA13	ENST00000417403.5	n.179G>A		non_coding_transcript_exon_variant	Exon 3 of 18	2		ENSP00000409268.1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152004 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.0000441

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000323 AC: 8 AN: 247766 AF XY: 0.0000223

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000584

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000533

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000288 AC: 42 AN: 1460014 Hom.: 0 Cov.: 32 AF XY: 0.0000262 AC XY: 19 AN XY: 726150

African (AFR) AF: 0.00 AC: 0 AN: 33458

American (AMR) AF: 0.0000448 AC: 2 AN: 44600

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26062

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39654

South Asian (SAS) AF: 0.00 AC: 0 AN: 85714

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53300

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000351 AC: 39 AN: 1111172

Other (OTH) AF: 0.00 AC: 0 AN: 60286

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152122 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74362

African (AFR) AF: 0.00 AC: 0 AN: 41514

American (AMR) AF: 0.00 AC: 0 AN: 15268

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4802

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10574

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 67990

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.0000283 Hom.: 0

Bravo AF: 0.0000151

ExAC AF: 0.0000497 AC: 6

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jan 30, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.179G>A (p.R60Q) alteration is located in exon 3 (coding exon 3) of the ABCA13 gene. This alteration results from a G to A substitution at nucleotide position 179, causing the arginine (R) at amino acid position 60 to be replaced by a glutamine (Q). 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	0.28
BayesDel_addAF	Uncertain	0.085	D
BayesDel_noAF	Uncertain	0.060
CADD	Pathogenic	27
DANN	Pathogenic	1.0
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.88	D
M_CAP	Uncertain	0.11	D
MetaRNN	Uncertain	0.60	D
MetaSVM	Pathogenic	1.1	D
PhyloP100		5.3
PrimateAI	Benign	0.47	T
PROVEAN	Benign	-1.4	N
REVEL	Uncertain	0.60
Sift	Uncertain	0.0060	D
Sift4G	Pathogenic	0.0	D
Vest4		0.60
MutPred		0.34		Gain of sheet (P = 0.1945);
MVP		0.81
MPC		0.19
ClinPred		0.37	T
GERP RS		5.3
gMVP		0.21
Mutation Taster		=94/6	polymorphism

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: rs573740053; hg19: chr7-48237849; COSMIC: COSV70026109;