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rs3829241

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_139075.4(TPCN2):c.2201G>A(p.Gly734Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.35 in 1,611,286 control chromosomes in the GnomAD database, including 106,973 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as association (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G734R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.28 ( 7160 hom., cov: 32)
Exomes 𝑓: 0.36 ( 99813 hom. )

Consequence

TPCN2
NM_139075.4 missense

Scores

18

Clinical Significance

association no assertion criteria provided O:1

Conservation

PhyloP100: 1.17
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0012671053).
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.385 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPCN2NM_139075.4 linkuse as main transcriptc.2201G>A p.Gly734Glu missense_variant 25/25 ENST00000294309.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPCN2ENST00000294309.8 linkuse as main transcriptc.2201G>A p.Gly734Glu missense_variant 25/251 NM_139075.4 P1

Frequencies

GnomAD3 genomes
AF:
0.277
AC:
42048
AN:
151896
Hom.:
7162
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0959
Gnomad AMI
AF:
0.530
Gnomad AMR
AF:
0.254
Gnomad ASJ
AF:
0.274
Gnomad EAS
AF:
0.219
Gnomad SAS
AF:
0.116
Gnomad FIN
AF:
0.378
Gnomad MID
AF:
0.184
Gnomad NFE
AF:
0.389
Gnomad OTH
AF:
0.293
GnomAD3 exomes
AF:
0.289
AC:
71251
AN:
246832
Hom.:
11891
AF XY:
0.289
AC XY:
38682
AN XY:
133836
show subpopulations
Gnomad AFR exome
AF:
0.0897
Gnomad AMR exome
AF:
0.196
Gnomad ASJ exome
AF:
0.257
Gnomad EAS exome
AF:
0.230
Gnomad SAS exome
AF:
0.124
Gnomad FIN exome
AF:
0.368
Gnomad NFE exome
AF:
0.387
Gnomad OTH exome
AF:
0.315
GnomAD4 exome
AF:
0.358
AC:
522122
AN:
1459272
Hom.:
99813
Cov.:
37
AF XY:
0.352
AC XY:
255523
AN XY:
725836
show subpopulations
Gnomad4 AFR exome
AF:
0.0805
Gnomad4 AMR exome
AF:
0.202
Gnomad4 ASJ exome
AF:
0.259
Gnomad4 EAS exome
AF:
0.229
Gnomad4 SAS exome
AF:
0.128
Gnomad4 FIN exome
AF:
0.373
Gnomad4 NFE exome
AF:
0.399
Gnomad4 OTH exome
AF:
0.317
GnomAD4 genome
AF:
0.276
AC:
42026
AN:
152014
Hom.:
7160
Cov.:
32
AF XY:
0.271
AC XY:
20152
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.0957
Gnomad4 AMR
AF:
0.254
Gnomad4 ASJ
AF:
0.274
Gnomad4 EAS
AF:
0.218
Gnomad4 SAS
AF:
0.115
Gnomad4 FIN
AF:
0.378
Gnomad4 NFE
AF:
0.389
Gnomad4 OTH
AF:
0.289
Alfa
AF:
0.353
Hom.:
20413
Bravo
AF:
0.265
TwinsUK
AF:
0.399
AC:
1478
ALSPAC
AF:
0.423
AC:
1631
ESP6500AA
AF:
0.106
AC:
466
ESP6500EA
AF:
0.383
AC:
3292
ExAC
AF:
0.288
AC:
34934
Asia WGS
AF:
0.160
AC:
558
AN:
3478

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
0.071
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.31
Cadd
Benign
8.4
Dann
Benign
0.70
DEOGEN2
Benign
0.097
T;T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.085
N
LIST_S2
Benign
0.12
T;T
MetaRNN
Benign
0.0013
T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.0
N;.
MutationTaster
Benign
1.0
P;P
PrimateAI
Benign
0.22
T
PROVEAN
Benign
0.78
N;N
REVEL
Benign
0.25
Sift
Benign
1.0
T;T
Sift4G
Benign
0.80
T;T
Polyphen
0.0010
B;B
Vest4
0.057
MPC
0.25
ClinPred
0.00058
T
GERP RS
-3.6
Varity_R
0.030
gMVP
0.32

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: rs3829241; hg19: chr11-68855363; COSMIC: COSV53729283; COSMIC: COSV53729283; API