chr15-100885376-A-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_000693.4(ALDH1A3):​c.204+5A>C variant causes a splice donor 5th base, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00095 in 1,587,086 control chromosomes in the GnomAD database, including 15 homozygotes. 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 Benign (★).

Frequency

Genomes: 𝑓 0.0049 ( 6 hom., cov: 32)
Exomes 𝑓: 0.00053 ( 9 hom. )

Consequence

ALDH1A3
NM_000693.4 splice_donor_5th_base, intron

Scores

2
Splicing: ADA: 0.0002093
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.68
Variant links:
Genes affected
ALDH1A3 (HGNC:409): (aldehyde dehydrogenase 1 family member A3) This gene encodes an aldehyde dehydrogenase enzyme that uses retinal as a substrate. Mutations in this gene have been associated with microphthalmia, isolated 8, and expression changes have also been detected in tumor cells. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 15-100885376-A-C is Benign according to our data. Variant chr15-100885376-A-C is described in ClinVar as [Benign]. Clinvar id is 473868.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00492 (749/152342) while in subpopulation AFR AF= 0.0172 (716/41558). AF 95% confidence interval is 0.0162. There are 6 homozygotes in gnomad4. There are 330 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ALDH1A3NM_000693.4 linkuse as main transcriptc.204+5A>C splice_donor_5th_base_variant, intron_variant ENST00000329841.10 NP_000684.2
ALDH1A3NM_001293815.2 linkuse as main transcriptc.204+5A>C splice_donor_5th_base_variant, intron_variant NP_001280744.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ALDH1A3ENST00000329841.10 linkuse as main transcriptc.204+5A>C splice_donor_5th_base_variant, intron_variant 1 NM_000693.4 ENSP00000332256 P1

Frequencies

GnomAD3 genomes
AF:
0.00491
AC:
748
AN:
152224
Hom.:
6
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0173
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00157
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:
0.00334
GnomAD3 exomes
AF:
0.00124
AC:
312
AN:
250964
Hom.:
1
AF XY:
0.000869
AC XY:
118
AN XY:
135738
show subpopulations
Gnomad AFR exome
AF:
0.0170
Gnomad AMR exome
AF:
0.000753
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000654
GnomAD4 exome
AF:
0.000528
AC:
758
AN:
1434744
Hom.:
9
Cov.:
26
AF XY:
0.000454
AC XY:
325
AN XY:
715632
show subpopulations
Gnomad4 AFR exome
AF:
0.0185
Gnomad4 AMR exome
AF:
0.000716
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000817
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000230
Gnomad4 OTH exome
AF:
0.00138
GnomAD4 genome
AF:
0.00492
AC:
749
AN:
152342
Hom.:
6
Cov.:
32
AF XY:
0.00443
AC XY:
330
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.0172
Gnomad4 AMR
AF:
0.00157
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:
0.00331
Alfa
AF:
0.00103
Hom.:
3
Bravo
AF:
0.00531
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

ClinVar

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

Submissions by phenotype

Isolated microphthalmia 8 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 09, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
16
DANN
Benign
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00021
dbscSNV1_RF
Benign
0.11
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs74386167; hg19: chr15-101425581; API