17-6426597-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The ENST00000575265.5(AIPL1):​c.802G>A​(p.Gly268Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0238 in 1,611,942 control chromosomes in the GnomAD database, including 1,612 homozygotes. In-silico tool predicts a benign outcome for this variant. 9/10 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. G268G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.053 ( 515 hom., cov: 33)
Exomes 𝑓: 0.021 ( 1097 hom. )

Consequence

AIPL1
ENST00000575265.5 missense

Scores

9

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3O:1

Conservation

PhyloP100: -0.145
Variant links:
Genes affected
AIPL1 (HGNC:359): (aryl hydrocarbon receptor interacting protein like 1) Leber congenital amaurosis (LCA) is the most severe inherited retinopathy with the earliest age of onset and accounts for at least 5% of all inherited retinal diseases. Affected individuals are diagnosed at birth or in the first few months of life with nystagmus, severely impaired vision or blindness and an abnormal or flat electroretinogram. The photoreceptor/pineal-expressed gene, AIPL1, encoding aryl-hydrocarbon interacting protein-like 1, is located within the LCA4 candidate region. The encoded protein contains three tetratricopeptide motifs, consistent with chaperone or nuclear transport activity. Mutations in this gene may cause approximately 20% of recessive LCA. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0021551847).
BP6
Variant 17-6426597-C-T is Benign according to our data. Variant chr17-6426597-C-T is described in ClinVar as [Benign]. Clinvar id is 99807.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-6426597-C-T is described in Lovd as [Benign]. Variant chr17-6426597-C-T is described in Lovd as [Likely_benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.139 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AIPL1NM_014336.5 linkuse as main transcriptc.784+18G>A intron_variant ENST00000381129.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AIPL1ENST00000381129.8 linkuse as main transcriptc.784+18G>A intron_variant 1 NM_014336.5 P1Q9NZN9-1

Frequencies

GnomAD3 genomes
AF:
0.0533
AC:
8105
AN:
152176
Hom.:
510
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.141
Gnomad AMI
AF:
0.00877
Gnomad AMR
AF:
0.0260
Gnomad ASJ
AF:
0.00548
Gnomad EAS
AF:
0.0497
Gnomad SAS
AF:
0.114
Gnomad FIN
AF:
0.0133
Gnomad MID
AF:
0.0380
Gnomad NFE
AF:
0.0117
Gnomad OTH
AF:
0.0330
GnomAD3 exomes
AF:
0.0336
AC:
8321
AN:
247650
Hom.:
411
AF XY:
0.0350
AC XY:
4698
AN XY:
134166
show subpopulations
Gnomad AFR exome
AF:
0.147
Gnomad AMR exome
AF:
0.00912
Gnomad ASJ exome
AF:
0.00490
Gnomad EAS exome
AF:
0.0488
Gnomad SAS exome
AF:
0.102
Gnomad FIN exome
AF:
0.0128
Gnomad NFE exome
AF:
0.0108
Gnomad OTH exome
AF:
0.0246
GnomAD4 exome
AF:
0.0207
AC:
30256
AN:
1459648
Hom.:
1097
Cov.:
34
AF XY:
0.0226
AC XY:
16420
AN XY:
726124
show subpopulations
Gnomad4 AFR exome
AF:
0.153
Gnomad4 AMR exome
AF:
0.0104
Gnomad4 ASJ exome
AF:
0.00437
Gnomad4 EAS exome
AF:
0.0473
Gnomad4 SAS exome
AF:
0.0990
Gnomad4 FIN exome
AF:
0.0124
Gnomad4 NFE exome
AF:
0.0105
Gnomad4 OTH exome
AF:
0.0269
GnomAD4 genome
AF:
0.0534
AC:
8135
AN:
152294
Hom.:
515
Cov.:
33
AF XY:
0.0543
AC XY:
4044
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.142
Gnomad4 AMR
AF:
0.0260
Gnomad4 ASJ
AF:
0.00548
Gnomad4 EAS
AF:
0.0496
Gnomad4 SAS
AF:
0.113
Gnomad4 FIN
AF:
0.0133
Gnomad4 NFE
AF:
0.0117
Gnomad4 OTH
AF:
0.0378
Alfa
AF:
0.0280
Hom.:
38
Bravo
AF:
0.0553
TwinsUK
AF:
0.0102
AC:
38
ALSPAC
AF:
0.0114
AC:
44
ESP6500AA
AF:
0.143
AC:
630
ESP6500EA
AF:
0.0102
AC:
88
ExAC
AF:
0.0377
AC:
4581
Asia WGS
AF:
0.0980
AC:
338
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1Other:1
Benign, criteria provided, single submitterclinical testingGeneDxJul 11, 2018- -
not provided, no classification providedliterature onlyRetina International-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Leber congenital amaurosis 4 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
4.3
DANN
Benign
0.46
DEOGEN2
Benign
0.0057
.;T
FATHMM_MKL
Benign
0.0096
N
LIST_S2
Benign
0.32
T;T
MetaRNN
Benign
0.0022
T;T
MutationTaster
Benign
1.0
P;P;P;P;P;P;P;P
Sift4G
Benign
0.22
T;T
Polyphen
0.0010
B;.
Vest4
0.065
GERP RS
0.61

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

Publications

LitVar

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

Other links and lift over

dbSNP: rs7222126; hg19: chr17-6329917; COSMIC: COSV51506715; COSMIC: COSV51506715; API