12-53424408-A-G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_020547.3(AMHR2):​c.170A>G​(p.Tyr57Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,682 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. Y57Y) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

AMHR2
NM_020547.3 missense

Scores

2
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.00

Publications

1 publications found
Variant links:
Genes affected
AMHR2 (HGNC:465): (anti-Mullerian hormone receptor type 2) This gene encodes the receptor for the anti-Mullerian hormone (AMH) which, in addition to testosterone, results in male sex differentiation. AMH and testosterone are produced in the testes by different cells and have different effects. Testosterone promotes the development of male genitalia while the binding of AMH to the encoded receptor prevents the development of the mullerian ducts into uterus and Fallopian tubes. Mutations in this gene are associated with persistent Mullerian duct syndrome type II. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Sep 2009]
AMHR2 Gene-Disease associations (from GenCC):
  • persistent Mullerian duct syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AMHR2NM_020547.3 linkc.170A>G p.Tyr57Cys missense_variant Exon 2 of 11 ENST00000257863.9 NP_065434.1 Q16671-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AMHR2ENST00000257863.9 linkc.170A>G p.Tyr57Cys missense_variant Exon 2 of 11 1 NM_020547.3 ENSP00000257863.3 Q16671-1
AMHR2ENST00000379791.7 linkc.170A>G p.Tyr57Cys missense_variant Exon 2 of 9 1 ENSP00000369117.3 Q16671-3
AMHR2ENST00000550311.5 linkc.170A>G p.Tyr57Cys missense_variant Exon 2 of 11 1 ENSP00000446661.1 Q16671-2
AMHR2ENST00000553037.1 linkn.131A>G non_coding_transcript_exon_variant Exon 1 of 2 4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152142
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
250334
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000871
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461422
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727008
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.0000672
AC:
3
AN:
44668
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86214
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53360
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5614
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111928
Other (OTH)
AF:
0.00
AC:
0
AN:
60350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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

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:
152260
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74450
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41558
American (AMR)
AF:
0.0000655
AC:
1
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000203), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 01, 2020
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

DNA sequence analysis of the AMHR2 gene demonstrated a sequence change, c.170A>G, in exon 2 that results in an amino acid change, p.Tyr57Cys. This sequence change does not appear to have been previously described in patients with AMHR2-related disorders and has been described in the gnomAD database with a low population frequency of 0.0016% (dbSNP rs574868905). The p.Tyr57Cys change affects a highly conserved amino acid residue located in a domain of the AMHR2 protein that is known to be functional. The p.Tyr57Cys substitution appears to be deleterious using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL). Due to these evidences and the lack of functional studies, the clinical significance of the p.Tyr57Cys change remains unknown at this time. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.49
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Pathogenic
0.14
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.66
D;.;.
Eigen
Benign
0.090
Eigen_PC
Benign
0.10
FATHMM_MKL
Benign
0.69
D
LIST_S2
Uncertain
0.86
D;T;D
M_CAP
Uncertain
0.10
D
MetaRNN
Uncertain
0.69
D;D;D
MetaSVM
Uncertain
0.65
D
MutationAssessor
Benign
1.0
L;L;L
PhyloP100
2.0
PrimateAI
Uncertain
0.55
T
PROVEAN
Uncertain
-2.4
N;N;N
REVEL
Pathogenic
0.66
Sift
Benign
0.070
T;T;D
Sift4G
Benign
0.17
T;D;D
Polyphen
0.90
P;.;.
Vest4
0.72
MutPred
0.51
Gain of catalytic residue at L56 (P = 8e-04);Gain of catalytic residue at L56 (P = 8e-04);Gain of catalytic residue at L56 (P = 8e-04);
MVP
0.97
MPC
0.54
ClinPred
0.33
T
GERP RS
3.0
PromoterAI
-0.016
Neutral
Varity_R
0.19
gMVP
0.44
Mutation Taster
=70/30
polymorphism

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

Other links and lift over

dbSNP: rs574868905; hg19: chr12-53818192; API