6-10803886-C-T

Position:

chr6-10803886-C-T

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PM5PP3_ModeratePP5_Very_Strong

The NM_001242957.3(MAK):c.497G>A(p.Arg166His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000093 in 1,613,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R166C) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

MAK
NM_001242957.3 missense

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 7.70

Variant links:

Genes affected

MAK (HGNC:6816): (male germ cell associated kinase) The product of this gene is a serine/threonine protein kinase related to kinases involved in cell cycle regulation. Studies of the mouse and rat homologs have localized the kinase to the chromosomes during meiosis in spermatogenesis, specifically to the synaptonemal complex that exists while homologous chromosomes are paired. Mutations in this gene have been associated with ciliary defects resulting in retinitis pigmentosa 62. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

MAK links:

TMEM14B (HGNC:21384): (transmembrane protein 14B) Enables identical protein binding activity. Involved in cerebral cortex development; neural precursor cell proliferation; and regulation of G1/S transition of mitotic cell cycle. Predicted to be integral component of membrane. Predicted to be active in mitochondrial inner membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM14B links:

ENSG00000272162 (HGNC:):

ENSG00000272162 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PM1

In a domain Protein kinase (size 280) in uniprot entity MAK_HUMAN there are 19 pathogenic changes around while only 1 benign (95%) in NM_001242957.3

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr6-10803887-G-A is described in Lovd as [Likely_pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.929

PP5

Variant 6-10803886-C-T is Pathogenic according to our data. Variant chr6-10803886-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 29784.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-10803886-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MAK	NM_001242957.3 linkuse as main transcript	c.497G>A	p.Arg166His	missense_variant	7/15	ENST00000354489.7	NP_001229886.1	P20794-2F8VBW7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MAK	ENST00000354489.7 linkuse as main transcript	c.497G>A	p.Arg166His	missense_variant	7/15	5	NM_001242957.3	ENSP00000346484.3		P20794-2
ENSG00000272162	ENST00000480294.1 linkuse as main transcript	n.100+54188C>T		intron_variant		2		ENSP00000417929.1		F8WBI7

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152040

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1461580

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727088

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00000989

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152040

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74256

show subpopulations

Gnomad4 AFR

AF:

0.0000242

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000648

Hom.:

Bravo

AF:

0.0000340

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Retinitis pigmentosa 62

Pathogenic:2

Pathogenic, criteria provided, single submitter	research	Ocular Genomics Institute, Massachusetts Eye and Ear	Apr 08, 2021	The MAK c.497G>A variant was identified in an individual with retinitis pigmentosa with a presumed recessive inheritance pattern. Through a review of available evidence we were able to apply the following criteria: PM2, PP3, PP1-M, PM3. Based on this evidence we have classified this variant as Pathogenic. -
Pathogenic, no assertion criteria provided	literature only	OMIM	Aug 12, 2011	- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 12, 2023

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 166 of the MAK protein (p.Arg166His). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with retinitis pigmentosa (PMID: 21835304, 25385675). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 29784). 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 expected to disrupt MAK protein function with a positive predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -

Retinitis pigmentosa

Pathogenic:1

Pathogenic, no assertion criteria provided

research

Sharon lab, Hadassah-Hebrew University Medical Center

Jun 23, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.32

BayesDel_noAF

Pathogenic

0.22

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.34

T;T;.;.;.

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.90

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

.;D;D;D;D

M_CAP

Pathogenic

0.42

MetaRNN

Pathogenic

0.93

D;D;D;D;D

MetaSVM

Uncertain

0.18

MutationAssessor

Pathogenic

3.4

M;M;M;M;.

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-4.9

D;.;D;D;D

REVEL

Pathogenic

0.66

Sift

Pathogenic

0.0

D;.;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;D

Polyphen

1.0

D;D;.;.;.

Vest4

0.96

MVP

0.89

MPC

0.77

ClinPred

1.0

GERP RS

5.4

Varity_R

0.96

gMVP

0.90

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