rs104894334

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PM1PP3_ModeratePP5_Very_Strong

The NM_000486.6(AQP2):c.439G>A(p.Ala147Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000355 in 1,605,318 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

AQP2
NM_000486.6 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4O:1

Conservation

PhyloP100: 10.0

Publications

20 publications found

Variant links:

Genes affected

AQP2 (HGNC:634): (aquaporin 2) This gene encodes a water channel protein located in the kidney collecting tubule. It belongs to the MIP/aquaporin family, some members of which are clustered together on chromosome 12q13. Mutations in this gene have been linked to autosomal dominant and recessive forms of nephrogenic diabetes insipidus. [provided by RefSeq, Oct 2008]

AQP2 links:

AQP5-AS1 (HGNC:55474): (AQP5 and AQP2 antisense RNA 2)

AQP5-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PM1

In a chain Aquaporin-2 (size 270) in uniprot entity AQP2_HUMAN there are 29 pathogenic changes around while only 8 benign (78%) in NM_000486.6

PP3

MetaRNN computational evidence supports a deleterious effect, 0.902

PP5

Variant 12-49954233-G-A is Pathogenic according to our data. Variant chr12-49954233-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 17832.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AQP2	NM_000486.6 link	c.439G>A	p.Ala147Thr	missense_variant	Exon 2 of 4	ENST00000199280.4	NP_000477.1	P41181
AQP5-AS1	NR_110590.1 link	n.372C>T		non_coding_transcript_exon_variant	Exon 2 of 3
AQP5-AS1	NR_110591.1 link	n.118-2145C>T		intron_variant	Intron 1 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AQP2	ENST00000199280.4 link	c.439G>A	p.Ala147Thr	missense_variant	Exon 2 of 4	1	NM_000486.6	ENSP00000199280.3		P41181

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000530

AC:

AN:

245056

AF XY:

0.0000601

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000969

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000317

AC:

AN:

1453156

Hom.:

Cov.:

AF XY:

0.0000401

AC XY:

AN XY:

723292

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44894

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.0000369

AC:

AN:

1111950

Other (OTH)

AF:

0.0000166

AC:

AN:

60334

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74322

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41420

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000137

Hom.:

Bravo

AF:

0.0000604

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:4Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:2

Nov 01, 2024

GeneDx

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Published functional studies demonstrate a damaging effect on vasopressin-induced water permeability (PMID: 10411689); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 9048343, 22644838, 31589614, 10564236, 27641679, 37674034, 15253895, 10574954, 9593782, 11374071, Karaduman2021[FunctionalStudy], 29996815, 26069764, 29799470, 16825342, 8793791, 32993088, 32621731, 10770218, 32281760, 10411689, 38622833) -

Feb 07, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 147 of the AQP2 protein (p.Ala147Thr). This variant is present in population databases (rs104894334, gnomAD 0.01%). This missense change has been observed in individuals with autosomal recessive nephrogenic diabetes insipidus (PMID: 9048343, 10770218, 22644838). ClinVar contains an entry for this variant (Variation ID: 17832). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt AQP2 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects AQP2 function (PMID: 9048343, 9593782, 10564236, 10574954). For these reasons, this variant has been classified as Pathogenic. -

Diabetes insipidus, nephrogenic, autosomal

Pathogenic:2

Feb 01, 1997

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

May 07, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nephrogenic diabetes insipidus

Other:1

Oct 02, 2015

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:not provided

Review Status:no classification provided

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.56

BayesDel_addAF

Pathogenic

0.30

BayesDel_noAF

Pathogenic

0.41

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.91

D;D

Eigen

Pathogenic

0.78

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Pathogenic

0.30

MetaRNN

Pathogenic

0.90

D;D

MetaSVM

Pathogenic

0.82

MutationAssessor

Pathogenic

3.2

M;.

PhyloP100

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-3.4

D;D

REVEL

Pathogenic

0.84

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.0020

D;D

Polyphen

0.97

D;.

Vest4

0.86

MVP

0.96

MPC

1.3

ClinPred

0.94

GERP RS

4.7

Varity_R

0.89

gMVP

0.67

Mutation Taster

=11/89

disease causing (ClinVar)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over