Variant 1-84952488-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_153259.4(MCOLN2):c.608C>T(p.Pro203Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,613,152 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000041 ( 2 hom. )

Consequence

MCOLN2
NM_153259.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.602

Variant links:

Genes affected

MCOLN2 (HGNC:13357): (mucolipin TRP cation channel 2) Mucolipins constitute a family of cation channel proteins with homology to the transient receptor potential superfamily. In mammals, the mucolipin family includes 3 members, MCOLN1 (MIM 605248), MCOLN2, and MCOLN3 (MIM 607400), that exhibit a common 6-membrane-spanning topology. Homologs of mammalian mucolipins exist in Drosophila and C. elegans. Mutations in the human MCOLN1 gene cause mucolipodosis IV (MIM 262650) (Karacsonyi et al., 2007 [PubMed 17662026]).[supplied by OMIM, Sep 2009]

MCOLN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06084773).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MCOLN2	NM_153259.4 linkuse as main transcript	c.608C>T	p.Pro203Leu	missense_variant	5/14	ENST00000370608.8	NP_694991.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MCOLN2	ENST00000370608.8 linkuse as main transcript	c.608C>T	p.Pro203Leu	missense_variant	5/14	1	NM_153259.4	ENSP00000359640		Q8IZK6-1
MCOLN2	ENST00000531325.5 linkuse as main transcript	n.849C>T		non_coding_transcript_exon_variant	5/12	1
MCOLN2	ENST00000284027.5 linkuse as main transcript	c.524C>T	p.Pro175Leu	missense_variant	5/14	5		ENSP00000284027	P1	Q8IZK6-2
MCOLN2	ENST00000463065.5 linkuse as main transcript	c.608C>T	p.Pro203Leu	missense_variant, NMD_transcript_variant	5/12	2		ENSP00000436299

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000678

AC:

AN:

250752

Hom.:

AF XY:

0.0000664

AC XY:

AN XY:

135526

show subpopulations

Gnomad AFR exome

AF:

0.0000618

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.000359

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000411

AC:

AN:

1460912

Hom.:

Cov.:

AF XY:

0.0000509

AC XY:

AN XY:

726846

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000252

Gnomad4 SAS exome

AF:

0.000359

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74422

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000512

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000659

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 21, 2023

The c.608C>T (p.P203L) alteration is located in exon 5 (coding exon 5) of the MCOLN2 gene. This alteration results from a C to T substitution at nucleotide position 608, causing the proline (P) at amino acid position 203 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Benign

0.54

DEOGEN2

Benign

0.0088

T;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.35

LIST_S2

Benign

0.38

T;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.061

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.20

N;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.21

PROVEAN

Benign

-1.6

N;N

REVEL

Benign

0.17

Sift

Benign

0.27

T;T

Sift4G

Benign

0.33

T;T

Polyphen

0.15

B;.

Vest4

0.083

MVP

0.59

MPC

0.078

ClinPred

0.014

GERP RS

0.11

Varity_R

0.060

gMVP

0.48

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