7-48171551-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_152701.5(ABCA13):​c.68C>T​(p.Pro23Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000332 in 1,536,206 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

ABCA13
NM_152701.5 missense, splice_region

Scores

2
9
6
Splicing: ADA: 0.004878
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.45
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29216212).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCA13NM_152701.5 linkuse as main transcriptc.68C>T p.Pro23Leu missense_variant, splice_region_variant 1/62 ENST00000435803.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCA13ENST00000435803.6 linkuse as main transcriptc.68C>T p.Pro23Leu missense_variant, splice_region_variant 1/621 NM_152701.5 P1
ABCA13ENST00000417403.5 linkuse as main transcriptc.68C>T p.Pro23Leu missense_variant, splice_region_variant, NMD_transcript_variant 1/182 Q86UQ4-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000423
AC:
6
AN:
141810
Hom.:
0
AF XY:
0.0000527
AC XY:
4
AN XY:
75854
show subpopulations
Gnomad AFR exome
AF:
0.000132
Gnomad AMR exome
AF:
0.0000407
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000132
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000172
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000361
AC:
50
AN:
1384062
Hom.:
0
Cov.:
30
AF XY:
0.0000307
AC XY:
21
AN XY:
682974
show subpopulations
Gnomad4 AFR exome
AF:
0.0000634
Gnomad4 AMR exome
AF:
0.0000280
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000114
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000324
Gnomad4 OTH exome
AF:
0.0000519
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152144
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.0000189
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000314
AC:
1
ExAC
AF:
0.0000482
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 23, 2023The c.68C>T (p.P23L) alteration is located in exon 1 (coding exon 1) of the ABCA13 gene. This alteration results from a C to T substitution at nucleotide position 68, causing the proline (P) at amino acid position 23 to be replaced by a leucine (L). 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
Pathogenic
0.57
BayesDel_addAF
Benign
-0.0093
T
BayesDel_noAF
Uncertain
0.0
CADD
Benign
23
DANN
Uncertain
0.99
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Benign
0.69
D
LIST_S2
Benign
0.60
T
M_CAP
Benign
0.037
D
MetaRNN
Benign
0.29
T
MetaSVM
Uncertain
0.52
D
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-3.0
D
REVEL
Uncertain
0.60
Sift
Uncertain
0.0070
D
Sift4G
Pathogenic
0.0
D
Vest4
0.41
MVP
0.84
MPC
0.026
ClinPred
0.47
T
GERP RS
4.1
gMVP
0.25

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0049
dbscSNV1_RF
Benign
0.12
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs377369715; hg19: chr7-48211148; API