2-112019523-G-T

Position:

chr2-112019523-G-T

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_006343.3(MERTK):c.2189+1G>T variant causes a splice donor, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,603,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

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

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

MERTK
NM_006343.3 splice_donor, intron

Scores

Splicing: ADA: 1.000

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:10

Conservation

PhyloP100: 9.89

Variant links:

Genes affected

MERTK (HGNC:7027): (MER proto-oncogene, tyrosine kinase) This gene is a member of the MER/AXL/TYRO3 receptor kinase family and encodes a transmembrane protein with two fibronectin type-III domains, two Ig-like C2-type (immunoglobulin-like) domains, and one tyrosine kinase domain. Mutations in this gene have been associated with disruption of the retinal pigment epithelium (RPE) phagocytosis pathway and onset of autosomal recessive retinitis pigmentosa (RP). [provided by RefSeq, Jul 2008]

MERTK links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.

PP5

Variant 2-112019523-G-T is Pathogenic according to our data. Variant chr2-112019523-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 5403.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-112019523-G-T is described in Lovd as [Likely_pathogenic]. Variant chr2-112019523-G-T is described in Lovd as [Pathogenic]. Variant chr2-112019523-G-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MERTK	NM_006343.3 linkuse as main transcript	c.2189+1G>T		splice_donor_variant, intron_variant		ENST00000295408.9	NP_006334.2	Q12866

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Protein	UniProt
MERTK	ENST00000295408.9 linkuse as main transcript	c.2189+1G>T	splice_donor_variant, intron_variant	1	NM_006343.3	ENSP00000295408.4	Q12866
MERTK	ENST00000439966.5 linkuse as main transcript	n.*1662+1G>T	splice_donor_variant, intron_variant	1		ENSP00000402129.1	E9PD22
MERTK	ENST00000409780.5 linkuse as main transcript	c.1661+1G>T	splice_donor_variant, intron_variant	5		ENSP00000387277.1	E9PHX8
MERTK	ENST00000449344.2 linkuse as main transcript	c.110+1G>T	splice_donor_variant, intron_variant	3		ENSP00000412660.2	H7C3L9

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251438

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135900

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000241

AC:

AN:

1450874

Hom.:

Cov.:

AF XY:

0.0000277

AC XY:

AN XY:

722476

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000299

Gnomad4 OTH exome

AF:

0.0000333

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74380

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000423

Hom.:

Bravo

AF:

0.0000718

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Retinitis pigmentosa 38

Pathogenic:3

Pathogenic, criteria provided, single submitter	clinical testing	Mendelics	May 28, 2019	- -
Pathogenic, criteria provided, single submitter	clinical testing	Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center	Mar 25, 2024	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Jun 01, 2007	- -

not provided

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Jun 09, 2022	Canonical splice site variant demonstrated to result in a null allele in a gene for which loss of function is a known mechanism of disease (Ebermann I et al., 2007; This variant is associated with the following publications: (PMID: 25525159, 31589614, 17301963, 31370859, 32552793) -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 15, 2024	This sequence change affects a donor splice site in intron 16 of the MERTK gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in MERTK are known to be pathogenic (PMID: 24265693, 29659094). This variant is present in population databases (rs371956016, gnomAD 0.005%). Disruption of this splice site has been observed in individual(s) with cone-rod dystrophy (PMID: 17301963). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 5403). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -

Retinal dystrophy

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Blueprint Genetics	Aug 02, 2019	- -
Pathogenic, criteria provided, single submitter	clinical testing	Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg	Jan 01, 2020	- -

Inborn genetic diseases

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 10, 2016

- -

Autosomal recessive retinitis pigmentosa

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

Faculty of Health Sciences, Beirut Arab University

Sep 10, 2015

- -

Retinitis pigmentosa

Pathogenic:1

Pathogenic, criteria provided, single submitter

research

Ophthalmic Genetics Group, Institute of Molecular and Clinical Ophthalmology Basel

Jul 24, 2023

Clinical significance based on ACMG v2.0 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.53

BayesDel_noAF

Pathogenic

0.40

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Pathogenic

1.2

Eigen_PC

Pathogenic

1.1

FATHMM_MKL

Pathogenic

1.0

GERP RS

5.3

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.94

SpliceAI score (max)

0.98

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.98

Position offset: -1

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