11-69078931-A-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM1BP4_StrongBA1

The NM_139075.4(TPCN2):​c.1450A>T​(p.Met484Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.161 in 1,613,720 control chromosomes in the GnomAD database, including 23,617 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as association (no stars).

Frequency

Genomes: 𝑓 0.13 ( 1921 hom., cov: 34)
Exomes 𝑓: 0.16 ( 21696 hom. )

Consequence

TPCN2
NM_139075.4 missense

Scores

2
16

Clinical Significance

association no assertion criteria provided O:1

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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM1
In a mutagenesis_site Gain of function. Increased sodium currents. (size 0) in uniprot entity TPC2_HUMAN
BP4
Computational evidence support a benign effect (MetaRNN=0.0018771589).
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.2 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPCN2NM_139075.4 linkuse as main transcriptc.1450A>T p.Met484Leu missense_variant 16/25 ENST00000294309.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPCN2ENST00000294309.8 linkuse as main transcriptc.1450A>T p.Met484Leu missense_variant 16/251 NM_139075.4 P1

Frequencies

GnomAD3 genomes
AF:
0.134
AC:
20381
AN:
151990
Hom.:
1920
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0334
Gnomad AMI
AF:
0.0527
Gnomad AMR
AF:
0.0873
Gnomad ASJ
AF:
0.206
Gnomad EAS
AF:
0.00637
Gnomad SAS
AF:
0.210
Gnomad FIN
AF:
0.313
Gnomad MID
AF:
0.146
Gnomad NFE
AF:
0.180
Gnomad OTH
AF:
0.125
GnomAD3 exomes
AF:
0.158
AC:
39647
AN:
251116
Hom.:
4072
AF XY:
0.169
AC XY:
22898
AN XY:
135752
show subpopulations
Gnomad AFR exome
AF:
0.0329
Gnomad AMR exome
AF:
0.0597
Gnomad ASJ exome
AF:
0.205
Gnomad EAS exome
AF:
0.00381
Gnomad SAS exome
AF:
0.220
Gnomad FIN exome
AF:
0.300
Gnomad NFE exome
AF:
0.182
Gnomad OTH exome
AF:
0.164
GnomAD4 exome
AF:
0.164
AC:
239456
AN:
1461612
Hom.:
21696
Cov.:
70
AF XY:
0.167
AC XY:
121587
AN XY:
727082
show subpopulations
Gnomad4 AFR exome
AF:
0.0318
Gnomad4 AMR exome
AF:
0.0625
Gnomad4 ASJ exome
AF:
0.199
Gnomad4 EAS exome
AF:
0.00244
Gnomad4 SAS exome
AF:
0.220
Gnomad4 FIN exome
AF:
0.295
Gnomad4 NFE exome
AF:
0.167
Gnomad4 OTH exome
AF:
0.152
GnomAD4 genome
AF:
0.134
AC:
20385
AN:
152108
Hom.:
1921
Cov.:
34
AF XY:
0.141
AC XY:
10506
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.0334
Gnomad4 AMR
AF:
0.0872
Gnomad4 ASJ
AF:
0.206
Gnomad4 EAS
AF:
0.00619
Gnomad4 SAS
AF:
0.210
Gnomad4 FIN
AF:
0.313
Gnomad4 NFE
AF:
0.180
Gnomad4 OTH
AF:
0.127
Alfa
AF:
0.171
Hom.:
842
Bravo
AF:
0.109
TwinsUK
AF:
0.153
AC:
566
ALSPAC
AF:
0.152
AC:
585
ESP6500AA
AF:
0.0350
AC:
154
ESP6500EA
AF:
0.177
AC:
1516
ExAC
AF:
0.163
AC:
19806
Asia WGS
AF:
0.123
AC:
426
AN:
3478
EpiCase
AF:
0.175
EpiControl
AF:
0.173

ClinVar

Significance: association
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Skin/hair/eye pigmentation, variation in, 10 Other:1
association, no assertion criteria providedliterature onlyOMIMMay 18, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.10
CADD
Benign
7.8
DANN
Benign
0.69
DEOGEN2
Uncertain
0.55
D;T;T;T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.62
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.74
T;.;T;T
MetaRNN
Benign
0.0019
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.3
L;.;.;.
MutationTaster
Benign
0.43
P;P
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-1.8
N;.;N;.
REVEL
Uncertain
0.35
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);
MPC
0.18
ClinPred
0.0011
T
GERP RS
-3.9
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.

Other links and lift over

dbSNP: rs35264875; hg19: chr11-68846399; COSMIC: COSV53728164; COSMIC: COSV53728164; API