rs121918197

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_015272.5(RPGRIP1L):​c.697A>T​(p.Lys233*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,613,744 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 Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

RPGRIP1L
NM_015272.5 stop_gained

Scores

4
2
1

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 3.50
Variant links:
Genes affected
RPGRIP1L (HGNC:29168): (RPGRIP1 like) The protein encoded by this gene can localize to the basal body-centrosome complex or to primary cilia and centrosomes in ciliated cells. The encoded protein has been found to interact with nephrocystin-4. Defects in this gene are a cause of Joubert syndrome type 7 (JBTS7) and Meckel syndrome type 5 (MKS5). [provided by RefSeq, Jun 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 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 16-53686512-T-A is Pathogenic according to our data. Variant chr16-53686512-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1068.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Pathogenic=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RPGRIP1LNM_015272.5 linkc.697A>T p.Lys233* stop_gained Exon 6 of 27 ENST00000647211.2 NP_056087.2 Q68CZ1-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RPGRIP1LENST00000647211.2 linkc.697A>T p.Lys233* stop_gained Exon 6 of 27 NM_015272.5 ENSP00000493946.1 Q68CZ1-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000279
AC:
7
AN:
251112
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135688
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1461464
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
727016
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000448
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:
0.0000171
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152280
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74456
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000225
Hom.:
0
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis Pathogenic:1
Oct 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change creates a premature translational stop signal (p.Lys233*) in the RPGRIP1L gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in RPGRIP1L are known to be pathogenic (PMID: 17558409). This variant is present in population databases (rs121918197, gnomAD 0.01%). This premature translational stop signal has been observed in individual(s) with Joubert syndrome (PMID: 17558409). ClinVar contains an entry for this variant (Variation ID: 1068). For these reasons, this variant has been classified as Pathogenic. -

RPGRIP1L-related disorder Pathogenic:1
May 07, 2024
PreventionGenetics, part of Exact Sciences
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: clinical testing

The RPGRIP1L c.697A>T variant is predicted to result in premature protein termination (p.Lys233*). This variant has been reported in the compound heterozygous state in individuals with a variety of phenotypes, including Joubert syndrome (Delous et al. 2007. PubMed ID: 17558409), neurodegeneration with brain iron accumulation (NBIA; Martínez-Rubio et al. 2022. PubMed ID: 36233161) and inherited retinal disease (Table S3, Hanany et al. 2020. PubMed ID: 31964843). This variant is reported in 0.012% of alleles in individuals of African descent in gnomAD. Nonsense variants in RPGRIP1L are expected to be pathogenic. This variant is interpreted as pathogenic. -

Joubert syndrome 7 Pathogenic:1
Jul 01, 2007
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

not provided Pathogenic:1
Sep 13, 2019
Revvity Omics, Revvity
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Familial aplasia of the vermis Pathogenic:1
Feb 20, 2020
Natera, Inc.
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.63
CADD
Pathogenic
37
DANN
Uncertain
1.0
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.93
D
Vest4
0.86
GERP RS
5.7

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: rs121918197; hg19: chr16-53720424; API