rs121909181

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_001089.3(ABCA3):​c.3426G>A​(p.Trp1142Ter) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,611,284 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ABCA3
NM_001089.3 stop_gained

Scores

5
1
1

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 7.70
Variant links:
Genes affected
ABCA3 (HGNC:33): (ATP binding cassette subfamily A member 3) 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. The full transporter encoded by this gene may be involved in development of resistance to xenobiotics and engulfment during programmed cell death. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 16-2285499-C-T is Pathogenic according to our data. Variant chr16-2285499-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 8011.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCA3NM_001089.3 linkuse as main transcriptc.3426G>A p.Trp1142Ter stop_gained 23/33 ENST00000301732.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCA3ENST00000301732.10 linkuse as main transcriptc.3426G>A p.Trp1142Ter stop_gained 23/331 NM_001089.3 P1Q99758-1
ABCA3ENST00000382381.7 linkuse as main transcriptc.3252G>A p.Trp1084Ter stop_gained 22/321

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152232
Hom.:
0
Cov.:
32
show subpopulations
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459052
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
725488
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Interstitial lung disease due to ABCA3 deficiency Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMar 25, 2004- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMar 12, 2023For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 8011). This premature translational stop signal has been observed in individual(s) with autosomal recessive clinical surfactant deficiency (PMID: 15044640). This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Trp1142*) in the ABCA3 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ABCA3 are known to be pathogenic (PMID: 27516224). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.65
CADD
Pathogenic
44
DANN
Uncertain
0.99
Eigen
Pathogenic
0.91
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Pathogenic
0.98
D
MutationTaster
Benign
1.0
A;A
Vest4
0.93
GERP RS
4.6

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.19
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: rs121909181; hg19: chr16-2335500; API