rs766479946

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_001650.7(AQP4):​c.866C>T​(p.Thr289Met) variant causes a missense change. The variant allele was found at a frequency of 0.00000805 in 1,614,030 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

AQP4
NM_001650.7 missense

Scores

1
5
12

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 4.82

Publications

1 publications found
Variant links:
Genes affected
AQP4 (HGNC:637): (aquaporin 4) This gene encodes a member of the aquaporin family of intrinsic membrane proteins that function as water-selective channels in the plasma membranes of many cells. This protein is the predominant aquaporin found in brain and has an important role in brain water homeostasis. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. Additional isoforms, resulting from the use of alternative in-frame translation initiation codons, have also been described. Recent studies provided evidence for translational readthrough in this gene, and expression of C-terminally extended isoforms via the use of an alternative in-frame translation termination codon. [provided by RefSeq, Jun 2018]
AQP4-AS1 (HGNC:26399): (AQP4 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2357257).
BP6
Variant 18-26856317-G-A is Benign according to our data. Variant chr18-26856317-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2681326.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001650.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AQP4
NM_001650.7
MANE Select
c.866C>Tp.Thr289Met
missense
Exon 5 of 5NP_001641.1F1DSG4
AQP4
NM_001317384.3
c.866C>Tp.Thr289Met
missense
Exon 5 of 5NP_001304313.1A0A5F9ZHR4
AQP4
NM_001364287.1
c.800C>Tp.Thr267Met
missense
Exon 5 of 5NP_001351216.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AQP4
ENST00000383168.9
TSL:1 MANE Select
c.866C>Tp.Thr289Met
missense
Exon 5 of 5ENSP00000372654.4P55087-1
AQP4
ENST00000581374.5
TSL:1
c.800C>Tp.Thr267Met
missense
Exon 4 of 4ENSP00000462597.1P55087-2
AQP4
ENST00000672981.2
c.866C>Tp.Thr289Met
missense
Exon 5 of 5ENSP00000500598.2A0A5F9ZHR4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152142
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251478
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000752
AC:
11
AN:
1461888
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000540
AC:
6
AN:
1112006
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000131
AC:
2
AN:
152142
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74308
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41424
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000329
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions as Germline
Significance:Likely benign
Revision:no assertion criteria provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
EBV-positive nodal T- and NK-cell lymphoma (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
0.0026
T
BayesDel_noAF
Benign
-0.14
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.38
T
Eigen
Benign
-0.062
Eigen_PC
Benign
0.13
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.025
D
MetaRNN
Benign
0.24
T
MetaSVM
Benign
-0.35
T
MutationAssessor
Benign
1.8
L
PhyloP100
4.8
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.76
N
REVEL
Uncertain
0.31
Sift
Benign
0.039
D
Sift4G
Uncertain
0.028
D
Polyphen
0.15
B
Vest4
0.39
MVP
0.91
MPC
0.39
ClinPred
0.61
D
GERP RS
5.8
Varity_R
0.059
gMVP
0.43
Mutation Taster
=61/39
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs766479946; hg19: chr18-24436281; COSMIC: COSV67218332; COSMIC: COSV67218332; API