Variant 12-49962090-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001651.4(AQP5):c.73G>A(p.Val25Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

AQP5
NM_001651.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.55

Variant links:

Genes affected

AQP5 (HGNC:638): (aquaporin 5) Aquaporin 5 (AQP5) is a water channel protein. Aquaporins are a family of small integral membrane proteins related to the major intrinsic protein (MIP or AQP0). Aquaporin 5 plays a role in the generation of saliva, tears and pulmonary secretions. AQP0, AQP2, AQP5, and AQP6 are closely related and all map to 12q13. [provided by RefSeq, Jul 2008]

AQP5 links:

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

AQP5-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30124947).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AQP5	NM_001651.4 linkuse as main transcript	c.73G>A	p.Val25Ile	missense_variant	1/4	ENST00000293599.7	NP_001642.1
AQP5-AS1	NR_110591.1 linkuse as main transcript	n.117+577C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
AQP5	ENST00000293599.7 linkuse as main transcript	c.73G>A	p.Val25Ile	missense_variant	1/4	1	NM_001651.4	ENSP00000293599	P1
AQP5-AS1	ENST00000550530.1 linkuse as main transcript	n.117+577C>T		intron_variant, non_coding_transcript_variant		3
AQP5-AS1	ENST00000550214.1 linkuse as main transcript	n.258+577C>T		intron_variant, non_coding_transcript_variant		2
AQP5-AS1	ENST00000552379.1 linkuse as main transcript	n.256+577C>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460846

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726658

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

Dec 15, 2023

The c.73G>A (p.V25I) alteration is located in exon 1 (coding exon 1) of the AQP5 gene. This alteration results from a G to A substitution at nucleotide position 73, causing the valine (V) at amino acid position 25 to be replaced by an isoleucine (I). 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

0.15

BayesDel_addAF

Benign

-0.0093

BayesDel_noAF

Benign

-0.25

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.52

Eigen

Benign

-0.048

Eigen_PC

Benign

-0.042

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.86

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.30

MetaSVM

Benign

-0.40

MutationAssessor

Benign

1.8

MutationTaster

Benign

0.99

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.86

REVEL

Benign

0.28

Sift

Benign

0.21

Sift4G

Benign

0.21

Polyphen

0.50

Vest4

0.33

MutPred

0.56

Loss of sheet (P = 0.1158);

MVP

0.81

MPC

0.41

ClinPred

0.83

GERP RS

1.9

Varity_R

0.21

gMVP

0.67

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