Variant 16-25217367-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001169.3(AQP8):c.182C>T(p.Thr61Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000632 in 1,614,048 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

AQP8
NM_001169.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.12

Variant links:

Genes affected

AQP8 (HGNC:642): (aquaporin 8) Aquaporin 8 (AQP8) is a water channel protein. Aquaporins are a family of small integral membrane proteins related to the major intrinsic protein (MIP or AQP0). Aquaporin 8 mRNA is found in pancreas and colon but not other tissues. [provided by RefSeq, Jul 2008]

AQP8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07894528).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
AQP8	NM_001169.3 linkuse as main transcript	c.182C>T	p.Thr61Met	missense_variant	2/6	ENST00000219660.6
AQP8	XM_011545822.3 linkuse as main transcript	c.185C>T	p.Thr62Met	missense_variant	2/6
AQP8	XM_011545823.3 linkuse as main transcript	c.185C>T	p.Thr62Met	missense_variant	2/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AQP8	ENST00000219660.6 linkuse as main transcript	c.182C>T	p.Thr61Met	missense_variant	2/6	1	NM_001169.3	P4
AQP8	ENST00000566125.5 linkuse as main transcript	c.164C>T	p.Thr55Met	missense_variant	2/6	1		A1

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000721

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000103

AC:

AN:

251218

Hom.:

AF XY:

0.000125

AC XY:

AN XY:

135762

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000617

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.0000554

AC:

AN:

1461832

Hom.:

Cov.:

AF XY:

0.0000495

AC XY:

AN XY:

727210

show subpopulations

Gnomad4 AFR exome

AF:

0.000149

Gnomad4 AMR exome

AF:

0.000335

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000104

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000432

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.000138

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74428

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.000720

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.0000272

Hom.:

Bravo

AF:

0.0000869

ExAC

AF:

0.000115

AC:

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

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

Aug 02, 2021

The c.182C>T (p.T61M) alteration is located in exon 2 (coding exon 2) of the AQP8 gene. This alteration results from a C to T substitution at nucleotide position 182, causing the threonine (T) at amino acid position 61 to be replaced by a methionine (M). 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

0.12

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.46

Cadd

Benign

6.3

Dann

Benign

0.97

Eigen

Benign

-0.98

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.097

LIST_S2

Benign

0.18

T;T

M_CAP

Benign

0.063

MetaRNN

Benign

0.079

T;T

MetaSVM

Benign

-0.65

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

-1.4

N;N

Sift

Benign

0.10

T;T

Sift4G

Benign

0.11

T;T

Polyphen

0.82

.;P

Vest4

0.18

MutPred

0.33

.;Loss of catalytic residue at T61 (P = 0.0535);

MVP

0.79

MPC

0.24

ClinPred

0.035

GERP RS

-3.2

Varity_R

0.012

gMVP

0.43

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