rs121918198

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM2PP5_Very_Strong

The NM_015272.5(RPGRIP1L):c.1843A>C(p.Thr615Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000663 in 1,613,342 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T615N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000069 ( 0 hom. )

Consequence

RPGRIP1L
NM_015272.5 missense

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 0.217

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]

RPGRIP1L links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 16-53652844-T-G is Pathogenic according to our data. Variant chr16-53652844-T-G is described in ClinVar as [Pathogenic]. Clinvar id is 1069.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-53652844-T-G is described in Lovd as [Pathogenic]. Variant chr16-53652844-T-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RPGRIP1L	NM_015272.5 linkuse as main transcript	c.1843A>C	p.Thr615Pro	missense_variant	15/27	ENST00000647211.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RPGRIP1L	ENST00000647211.2 linkuse as main transcript	c.1843A>C	p.Thr615Pro	missense_variant	15/27		NM_015272.5		Q68CZ1-1

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152158

Hom.:

Cov.:

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000639

AC:

AN:

250524

Hom.:

AF XY:

0.0000591

AC XY:

AN XY:

135342

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.000132

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000691

AC:

101

AN:

1461066

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

726790

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.0000855

Gnomad4 OTH exome

AF:

0.0000829

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152276

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74470

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:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000399

Hom.:

Bravo

AF:

0.0000453

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Joubert syndrome 7

Pathogenic:2

Pathogenic, criteria provided, single submitter	research	UW Hindbrain Malformation Research Program, University of Washington	Feb 23, 2015	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Aug 01, 2008	- -

RPGRIP1L-related disorder

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 19, 2024

The RPGRIP1L c.1843A>C variant is predicted to result in the amino acid substitution p.Thr615Pro. This variant has been reported as causative for Joubert syndrome and related disorders (Arts et al. 2007. PubMed ID: 17558407; Delous et al. 2007. PubMed ID: 17558409; Brancati et al. 2008. PubMed ID: 18565097; Chaki et al. 2011.PubMed ID: 21866095; Szymanska et al. 2012. PubMed ID: 23351400). All affected individuals were either homozygous for the c.1843A>C (p.Thr615Pro) variant or compound heterozygous with a nonsense variant. This variant is reported in 0.012% of alleles in individuals of European (Non-Finnish) descent in gnomAD. This variant is interpreted as pathogenic. -

Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Invitae

Jan 20, 2024

This sequence change replaces threonine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 615 of the RPGRIP1L protein (p.Thr615Pro). This variant is present in population databases (rs121918198, gnomAD 0.01%). This missense change has been observed in individual(s) with cerebello-oculo-renal syndrome (Joubert syndrome type B) (PMID: 17558407, 17558409, 17960139, 18565097, 21866095, 26092869). ClinVar contains an entry for this variant (Variation ID: 1069). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RPGRIP1L protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects RPGRIP1L function (PMID: 17558409, 19430481). For these reasons, this variant has been classified as Pathogenic. -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

GeneDx

May 03, 2022

Published functional studies demonstrate that T615P significantly disrupts Nephrocystin-4 binding activity (Arts et al., 2007; Delous et al., 2007).; Not observed at a significant frequency in large population cohorts (gnomAD); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This variant is associated with the following publications: (PMID: 18565097, 17558407, 17558409, 26092869, 23351400, 21866095, 17960139, 31589614) -

Joubert syndrome and related disorders

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Feb 21, 2023

Variant summary: RPGRIP1L c.1843A>C (p.Thr615Pro) results in a non-conservative amino acid change located in the C2 domain of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 6.4e-05 in 250524 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in RPGRIP1L causing Joubert Syndrome And Related Disorders (6.4e-05 vs 0.00079), allowing no conclusion about variant significance. c.1843A>C has been reported in the literature in multiple individuals affected with Nephronophthisis related ciliopathies. These data indicate that the variant is very likely to be associated with disease. Five clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -

Meckel syndrome, type 5;C1969053:Joubert syndrome 7;C5436841:COACH syndrome 3

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

May 18, 2022

- -

Familial aplasia of the vermis

Pathogenic:1

Pathogenic, no assertion criteria provided

clinical testing

Natera, Inc.

Sep 16, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Pathogenic

0.23

Cadd

Benign

Dann

Uncertain

0.99

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.15

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.71

T;.;T;T;T;T

M_CAP

Benign

0.070

MetaRNN

Uncertain

0.59

D;D;D;D;D;D

MetaSVM

Uncertain

-0.18

MutationAssessor

Benign

1.3

L;L;.;L;.;.

MutationTaster

Benign

0.070

A;A;A;A

PrimateAI

Benign

0.30

PROVEAN

Uncertain

-2.8

D;.;.;D;D;D

REVEL

Uncertain

0.57

Sift

Benign

0.030

D;.;.;T;T;T

Sift4G

Benign

0.20

T;.;T;T;T;T

Polyphen

0.16

B;P;.;P;.;.

Vest4

0.55

MVP

0.83

MPC

0.13

ClinPred

0.12

GERP RS

3.1

Varity_R

0.52

gMVP

0.74

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over