dbSNP rs536480649: AQP9:p.Gly77Ser (chr15-58166790-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_020980.5(AQP9):c.229G>A(p.Gly77Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000136 in 1,613,536 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

AQP9
NM_020980.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.65

Variant links:

Genes affected

AQP9 (HGNC:643): (aquaporin 9) The aquaporins are a family of water-selective membrane channels. This gene encodes a member of a subset of aquaporins called the aquaglyceroporins. This protein allows passage of a broad range of noncharged solutes and also stimulates urea transport and osmotic water permeability. This protein may also facilitate the uptake of glycerol in hepatic tissue . The encoded protein may also play a role in specialized leukocyte functions such as immunological response and bactericidal activity. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016]

AQP9 links:

ALDH1A2 (HGNC:15472): (aldehyde dehydrogenase 1 family member A2) This protein belongs to the aldehyde dehydrogenase family of proteins. The product of this gene is an enzyme that catalyzes the synthesis of retinoic acid (RA) from retinaldehyde. Retinoic acid, the active derivative of vitamin A (retinol), is a hormonal signaling molecule that functions in developing and adult tissues. The studies of a similar mouse gene suggest that this enzyme and the cytochrome CYP26A1, concurrently establish local embryonic retinoic acid levels which facilitate posterior organ development and prevent spina bifida. Four transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, May 2011]

ALDH1A2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.879

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AQP9	NM_020980.5 link	c.229G>A	p.Gly77Ser	missense_variant	Exon 2 of 6	ENST00000219919.9	NP_066190.2	O43315
AQP9	NM_001320636.1 link	c.34G>A	p.Gly12Ser	missense_variant	Exon 2 of 6		NP_001307565.1	H0YK62
AQP9	NM_001320635.2 link	c.229G>A	p.Gly77Ser	missense_variant	Exon 2 of 5		NP_001307564.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AQP9	ENST00000219919.9 link	c.229G>A	p.Gly77Ser	missense_variant	Exon 2 of 6	1	NM_020980.5	ENSP00000219919.4		O43315

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

250682

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135480

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000982

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000123

AC:

AN:

1461374

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727010

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000360

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.0000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000412

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Pathogenic

0.17

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.56

D;D;D

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.97

D;.;D

M_CAP

Uncertain

0.15

MetaRNN

Pathogenic

0.88

D;D;D

MetaSVM

Uncertain

0.55

MutationAssessor

Benign

1.9

.;L;L

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-4.0

D;D;D

REVEL

Pathogenic

0.68

Sift

Benign

0.051

T;D;D

Sift4G

Uncertain

0.032

D;D;D

Polyphen

0.99

.;D;D

Vest4

0.80

MutPred

0.56

.;Gain of glycosylation at G77 (P = 0.0267);Gain of glycosylation at G77 (P = 0.0267);

MVP

0.93

MPC

0.068

ClinPred

0.94

GERP RS

4.8

Varity_R

0.40

gMVP

0.87

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over