Variant rs35264875 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_139075.4(TPCN2):c.1450A>C(p.Met484Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,714 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar.

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TPCN2
NM_139075.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.705

Variant links:

Genes affected

TPCN2 (HGNC:20820): (two pore segment channel 2) This gene encodes a putative cation-selective ion channel with two repeats of a six-transmembrane-domain. The protein localizes to lysosomal membranes and enables nicotinic acid adenine dinucleotide phosphate (NAADP) -induced calcium ion release from lysosome-related stores. This ubiquitously expressed gene has elevated expression in liver and kidney. Two common nonsynonymous SNPs in this gene strongly associate with blond versus brown hair pigmentation.[provided by RefSeq, Dec 2009]

TPCN2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a mutagenesis_site Gain of function. Increased sodium currents. (size 0) in uniprot entity TPC2_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.15198961).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TPCN2	NM_139075.4 linkuse as main transcript	c.1450A>C	p.Met484Leu	missense_variant	16/25	ENST00000294309.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TPCN2	ENST00000294309.8 linkuse as main transcript	c.1450A>C	p.Met484Leu	missense_variant	16/25	1	NM_139075.4	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251116

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135752

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:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461714

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727146

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:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.027

BayesDel_noAF

Benign

-0.10

CADD

Benign

7.0

DANN

Benign

0.60

DEOGEN2

Uncertain

0.55

D;T;T;T

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.62

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.74

T;.;T;T

M_CAP

Benign

0.043

MetaRNN

Benign

0.15

T;T;T;T

MetaSVM

Benign

-0.73

MutationAssessor

Benign

1.3

L;.;.;.

MutationTaster

Benign

0.57

D;D

PrimateAI

Benign

0.47

PROVEAN

Benign

-1.8

N;.;N;.

REVEL

Uncertain

0.34

Sift

Benign

1.0

T;.;T;.

Sift4G

Benign

0.96

T;.;T;.

Polyphen

0.0040

B;.;B;.

Vest4

0.16

MutPred

0.26

Gain of ubiquitination at K487 (P = 0.1047);Gain of ubiquitination at K487 (P = 0.1047);Gain of ubiquitination at K487 (P = 0.1047);Gain of ubiquitination at K487 (P = 0.1047);

MVP

0.36

MPC

0.18

ClinPred

0.018

GERP RS

-3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.13

gMVP

0.49

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over