20-3082716-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_000490.5(AVP):c.409G>A(p.Gly137Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000353 in 1,133,958 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000035 ( 0 hom. )
Consequence
AVP
NM_000490.5 missense
NM_000490.5 missense
Scores
3
8
8
Clinical Significance
Conservation
PhyloP100: 0.380
Genes affected
AVP (HGNC:894): (arginine vasopressin) This gene encodes a member of the vasopressin/oxytocin family and preproprotein that is proteolytically processed to generate multiple protein products. These products include the neuropeptide hormone arginine vasopressin, and two other peptides, neurophysin 2 and copeptin. Arginine vasopressin is a posterior pituitary hormone that is synthesized in the supraoptic nucleus and paraventricular nucleus of the hypothalamus. Along with its carrier protein, neurophysin 2, it is packaged into neurosecretory vesicles and transported axonally to the nerve endings in the neurohypophysis where it is either stored or secreted into the bloodstream. The precursor is thought to be activated while it is being transported along the axon to the posterior pituitary. Arginine vasopressin acts as a growth factor by enhancing pH regulation through acid-base transport systems. It has a direct antidiuretic action on the kidney, and also causes vasoconstriction of the peripheral vessels. This hormone can contract smooth muscle during parturition and lactation. It is also involved in cognition, tolerance, adaptation and complex sexual and maternal behaviour, as well as in the regulation of water excretion and cardiovascular functions. Mutations in this gene cause autosomal dominant neurohypophyseal diabetes insipidus (ADNDI). This gene is present in a gene cluster with the related gene oxytocin on chromosome 20. [provided by RefSeq, Nov 2015]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
AVP | NM_000490.5 | c.409G>A | p.Gly137Arg | missense_variant | 3/3 | ENST00000380293.3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
AVP | ENST00000380293.3 | c.409G>A | p.Gly137Arg | missense_variant | 3/3 | 1 | NM_000490.5 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 34
GnomAD3 genomes
?
Cov.:
34
GnomAD4 exome AF: 0.00000353 AC: 4AN: 1133958Hom.: 0 Cov.: 32 AF XY: 0.00000366 AC XY: 2AN XY: 545896
GnomAD4 exome
AF:
AC:
4
AN:
1133958
Hom.:
Cov.:
32
AF XY:
AC XY:
2
AN XY:
545896
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 34
GnomAD4 genome
?
Cov.:
34
Bravo
AF:
ExAC
?
AF:
AC:
1
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Nov 09, 2023 | The c.409G>A (p.G137R) alteration is located in exon 3 (coding exon 3) of the AVP gene. This alteration results from a G to A substitution at nucleotide position 409, causing the glycine (G) at amino acid position 137 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
Cadd
Uncertain
Dann
Uncertain
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
D
LIST_S2
Benign
T
M_CAP
Pathogenic
D
MetaRNN
Uncertain
T
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M
MutationTaster
Benign
N
PrimateAI
Pathogenic
D
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Uncertain
D
Sift4G
Uncertain
D
Polyphen
P
Vest4
MutPred
Gain of solvent accessibility (P = 0.0023);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at