rs747010865

Positions:

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000216.4(ANOS1):​c.1270C>T​(p.Arg424Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000915 in 1,092,579 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 9.2e-7 ( 0 hom. 0 hem. )

Consequence

ANOS1
NM_000216.4 stop_gained

Scores

2
1
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:2

Conservation

PhyloP100: 1.41
Variant links:
Genes affected
ANOS1 (HGNC:6211): (anosmin 1) Mutations in this gene cause the X-linked Kallmann syndrome. The encoded protein is similar in sequence to proteins known to function in neural cell adhesion and axonal migration. In addition, this cell surface protein is N-glycosylated and may have anti-protease activity. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant X-8554036-G-A is Pathogenic according to our data. Variant chrX-8554036-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 447606.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ANOS1NM_000216.4 linkuse as main transcriptc.1270C>T p.Arg424Ter stop_gained 9/14 ENST00000262648.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ANOS1ENST00000262648.8 linkuse as main transcriptc.1270C>T p.Arg424Ter stop_gained 9/141 NM_000216.4 P1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182944
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67422
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
9.15e-7
AC:
1
AN:
1092579
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
358185
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hypogonadotropic hypogonadism 1 with or without anosmia Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2022For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 447606). This premature translational stop signal has been observed in individual(s) with Kallmann syndrome (PMID: 15001591, 26862482). This variant is present in population databases (rs747010865, gnomAD 0.004%). This sequence change creates a premature translational stop signal (p.Arg424*) in the ANOS1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ANOS1 are known to be pathogenic (PMID: 8504298, 11297579). -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingAthena DiagnosticsApr 28, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.66
D
BayesDel_noAF
Pathogenic
0.27
CADD
Pathogenic
35
DANN
Uncertain
1.0
FATHMM_MKL
Benign
0.13
N
MutationTaster
Benign
1.0
A
Vest4
0.20
GERP RS
3.3

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.

Other links and lift over

dbSNP: rs747010865; hg19: chrX-8522077; COSMIC: COSV52918477; API