Variant chr12-113266274-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000335509.11(TPCN1):c.332T>C(p.Met111Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000297 in 1,613,782 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M111I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

TPCN1
ENST00000335509.11 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.64

Variant links:

Genes affected

TPCN1 (HGNC:18182): (two pore segment channel 1) Voltage-gated Ca(2+) and Na+ channels have 4 homologous domains, each containing 6 transmembrane segments, S1 to S6. TPCN1 is similar to these channels, but it has only 2 domains containing S1 to S6 (Ishibashi et al., 2000 [PubMed 10753632]).[supplied by OMIM, Mar 2008]

TPCN1 links:

TPCN1 (HGNC:):

TPCN1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TPCN1	NM_017901.6 linkuse as main transcript	c.332T>C	p.Met111Thr	missense_variant	4/28	ENST00000335509.11	NP_060371.2	Q9ULQ1-1B3KSG7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TPCN1	ENST00000335509.11 linkuse as main transcript	c.332T>C	p.Met111Thr	missense_variant	4/28	1	NM_017901.6	ENSP00000335300.6		Q9ULQ1-1

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000675

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000279

AC:

AN:

251158

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135778

show subpopulations

Gnomad AFR exome

AF:

0.000369

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1461582

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

727108

show subpopulations

Gnomad4 AFR exome

AF:

0.000388

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000270

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000184

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.000675

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000163

Hom.:

Bravo

AF:

0.000242

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000330

AC:

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

May 27, 2022

The c.548T>C (p.M183T) alteration is located in exon 5 (coding exon 4) of the TPCN1 gene. This alteration results from a T to C substitution at nucleotide position 548, causing the methionine (M) at amino acid position 183 to be replaced by a threonine (T). 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

0.25

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Pathogenic

0.29

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

.;T;D;.;.;.;D;.;T

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;D;D;.;D;D;D;D

M_CAP

Uncertain

0.17

MetaRNN

Uncertain

0.74

D;D;D;D;D;D;D;D;D

MetaSVM

Pathogenic

0.91

MutationAssessor

Uncertain

2.3

.;.;M;.;.;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.74

PROVEAN

Uncertain

-4.0

D;D;D;D;D;D;D;D;D

REVEL

Pathogenic

0.79

Sift

Uncertain

0.0040

D;D;D;D;D;D;D;D;D

Sift4G

Uncertain

0.0050

D;D;D;D;D;D;D;D;D

Polyphen

0.70, 0.96

.;.;P;.;D;D;.;.;.

Vest4

0.89, 0.89, 0.89, 0.90

MVP

0.94

MPC

0.58

ClinPred

0.55

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.72

gMVP

0.74

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