2-111965277-G-T

Position:

• chr2-111965277-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000295408.9(MERTK):​c.844G>T​(p.Ala282Ser) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A282T) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MERTK ENST00000295408.9 missense, splice_region
• Scores: Splicing: ADA: 0.9997
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.94

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MERTK	NM_006343.3	c.844G>T	p.Ala282Ser	missense_variant, splice_region_variant	5/19	ENST00000295408.9	NP_006334.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MERTK	ENST00000295408.9	c.844G>T	p.Ala282Ser	missense_variant, splice_region_variant	5/19	1	NM_006343.3	ENSP00000295408	P1
MERTK	ENST00000439966.5	c.*317G>T		splice_region_variant, 3_prime_UTR_variant, NMD_transcript_variant	5/19	1		ENSP00000402129
MERTK	ENST00000409780.5	c.316G>T	p.Ala106Ser	missense_variant, splice_region_variant	4/18	5		ENSP00000387277

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.085
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.59
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	T;T;T
Eigen	Benign	0.082
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.87	.;D;D
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.32	T;T;T
MetaSVM	Benign	-0.96	T
MutationAssessor	Uncertain	2.4	M;M;.
MutationTaster	Benign	0.36	P;P;P
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-1.3	N;N;N
REVEL	Benign	0.097
Sift	Uncertain	0.021	D;D;D
Sift4G	Benign	0.14	T;T;T
Polyphen		0.36	B;B;.
Vest4		0.24
MutPred		0.30		Gain of disorder (P = 0.0169);Gain of disorder (P = 0.0169);.;
MVP		0.69
MPC		0.19
ClinPred		0.78	D
GERP RS		5.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.8
Varity_R		0.18
gMVP		0.40

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.99
SpliceAI score (max)		0.020		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

Other links and lift over

dbSNP: rs7588635; hg19: chr2-112722854;