Genetic Variant NANOS2:p.Pro42Leu (chr19-45914569-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001029861.3(NANOS2):c.125C>T(p.Pro42Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000613 in 1,614,226 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000036 ( 1 hom. )

Consequence

NANOS2
NM_001029861.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.93

Variant links:

Genes affected

NANOS2 (HGNC:23292): (nanos C2HC-type zinc finger 2) Predicted to enable mRNA binding activity. Involved in negative regulation of translation and positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay. Located in nucleus and perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

NANOS2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.02624169).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NANOS2	NM_001029861.3 link	c.125C>T	p.Pro42Leu	missense_variant	Exon 1 of 1	ENST00000341294.4	NP_001025032.1	P60321

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NANOS2	ENST00000341294.4 link	c.125C>T	p.Pro42Leu	missense_variant	Exon 1 of 1	6	NM_001029861.3	ENSP00000341021.2		P60321

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152254

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00307

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000191

AC:

AN:

251186

Hom.:

AF XY:

0.000155

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00136

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000356

AC:

AN:

1461854

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00110

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:

0.00000180

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000308

AC:

AN:

152372

Hom.:

Cov.:

AF XY:

0.000456

AC XY:

AN XY:

74510

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00307

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.000234

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 11, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.125C>T (p.P42L) alteration is located in exon 1 (coding exon 1) of the NANOS2 gene. This alteration results from a C to T substitution at nucleotide position 125, causing the proline (P) at amino acid position 42 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.33

Eigen

Benign

-0.81

Eigen_PC

Benign

-0.82

FATHMM_MKL

Benign

0.33

LIST_S2

Benign

0.56

M_CAP

Benign

0.0083

MetaRNN

Benign

0.026

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

PrimateAI

Benign

0.39

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.066

Sift

Uncertain

0.0040

Sift4G

Benign

0.16

Polyphen

0.0010

Vest4

0.086

MutPred

0.32

Loss of glycosylation at P42 (P = 0.0309);

MVP

0.043

MPC

0.52

ClinPred

0.073

GERP RS

2.4

Varity_R

0.060

gMVP

0.61

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over