NM_015041.3:c.688C>T

Variant summary

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

The NM_015041.3(CLUAP1):​c.688C>T​(p.Arg230*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000174 in 1,612,332 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 Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

CLUAP1
NM_015041.3 stop_gained

Scores

4
2
1

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 3.05

Publications

2 publications found
Variant links:
Genes affected
CLUAP1 (HGNC:19009): (clusterin associated protein 1) The protein encoded by this gene contains a single coiled-coil region. Alternative splicing results in multiple transcript variants and protein isoforms. [provided by RefSeq, Jul 2012]
CLUAP1 Gene-Disease associations (from GenCC):
  • Leber congenital amaurosis
    Inheritance: AR Classification: LIMITED Submitted by: Franklin by Genoox

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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
CLUAP1NM_015041.3 linkc.688C>T p.Arg230* stop_gained Exon 7 of 12 ENST00000576634.6 NP_055856.1 Q96AJ1-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CLUAP1ENST00000576634.6 linkc.688C>T p.Arg230* stop_gained Exon 7 of 12 1 NM_015041.3 ENSP00000460850.1 Q96AJ1-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152028
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1460304
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
726472
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33318
American (AMR)
AF:
0.00
AC:
0
AN:
44386
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26086
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39678
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85932
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53274
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000234
AC:
26
AN:
1111526
Other (OTH)
AF:
0.00
AC:
0
AN:
60336
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.451
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152028
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74238
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41382
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10580
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Joubert syndrome Pathogenic:1
Sep 07, 2016
Biesecker Lab/Clinical Genomics Section, National Institutes of Health
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:research

Exome analysis revealed two alterations in CLUAP1 in an individual with Joubert syndrome. This alteration and NM_015041.2:c.338T>G were determined to be in trans based on parental analysis. Genes known to cause Joubert syndrome are involved in primary cilia function and this alteration in CLUAP1 was shown to have an effect on intraflagellar transport. Additionally, this variant is rare in the ExAC database. This is the first report of alterations in CLUAP1 in an individual with Joubert syndrome and identifying additional Joubert patients with alterations in CLUAP1 will help confirm the pathogenicity of these variants. -

not provided Uncertain:1
Dec 27, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Arg230*) in the CLUAP1 gene. It is expected to result in an absent or disrupted protein product. However, the current clinical and genetic evidence is not sufficient to establish whether loss-of-function variants in CLUAP1 cause disease. This variant is present in population databases (rs769705065, gnomAD 0.0009%). This premature translational stop signal has been observed in individual(s) with clinical features of CLUAP1-related conditions (PMID: 28679688). ClinVar contains an entry for this variant (Variation ID: 254178). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.60
D
BayesDel_noAF
Pathogenic
0.62
CADD
Pathogenic
41
DANN
Uncertain
1.0
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Uncertain
0.91
D
PhyloP100
3.0
Vest4
0.42
GERP RS
5.3
Mutation Taster
=1/199
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.23
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.23
Position offset: 25

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs769705065; hg19: chr16-3570011; COSMIC: COSV100489830; COSMIC: COSV100489830; API