6-166929679-C-G

Position:

chr6-166929679-C-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_003730.6(RNASET2):c.680G>C(p.Trp227Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000756 in 1,614,138 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

RNASET2
NM_003730.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.134

Variant links:

Genes affected

RNASET2 (HGNC:21686): (ribonuclease T2) This ribonuclease gene is a novel member of the Rh/T2/S-glycoprotein class of extracellular ribonucleases. It is a single copy gene that maps to 6q27, a region associated with human malignancies and chromosomal rearrangement. [provided by RefSeq, Jul 2008]

RNASET2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.019907206).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000466 (71/152280) while in subpopulation AFR AF= 0.00152 (63/41564). AF 95% confidence interval is 0.00122. There are 0 homozygotes in gnomad4. There are 38 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RNASET2	NM_003730.6 linkuse as main transcript	c.680G>C	p.Trp227Ser	missense_variant	9/9	ENST00000508775.6	NP_003721.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RNASET2	ENST00000508775.6 linkuse as main transcript	c.680G>C	p.Trp227Ser	missense_variant	9/9	1	NM_003730.6	ENSP00000426455	P1	O00584-1

Frequencies

GnomAD3 genomes

AF:

0.000453

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00147

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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

GnomAD3 exomes

AF:

0.000119

AC:

AN:

251428

Hom.:

AF XY:

0.0000736

AC XY:

AN XY:

135908

show subpopulations

Gnomad AFR exome

AF:

0.00154

Gnomad AMR exome

AF:

0.0000867

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000349

AC:

AN:

1461858

Hom.:

Cov.:

AF XY:

0.0000316

AC XY:

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.00114

Gnomad4 AMR exome

AF:

0.0000671

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:

0.000116

GnomAD4 genome

AF:

0.000466

AC:

AN:

152280

Hom.:

Cov.:

AF XY:

0.000510

AC XY:

AN XY:

74460

show subpopulations

Gnomad4 AFR

AF:

0.00152

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000793

Hom.:

Bravo

AF:

0.000604

ESP6500AA

AF:

0.00204

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000132

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 21, 2023

This sequence change replaces tryptophan, which is neutral and slightly polar, with serine, which is neutral and polar, at codon 227 of the RNASET2 protein (p.Trp227Ser). This variant is present in population databases (rs145013301, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with RNASET2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1501895). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.30

CADD

Benign

4.0

DANN

Benign

0.64

DEOGEN2

Benign

0.014

.;T;T;T;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.062

LIST_S2

Benign

0.46

T;.;T;T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.020

T;T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Uncertain

2.0

.;M;.;M;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.26

PROVEAN

Uncertain

-2.6

D;N;.;N;N

REVEL

Benign

0.21

Sift

Benign

0.41

T;T;.;T;T

Sift4G

Benign

0.73

T;T;T;T;.

Polyphen

0.36

.;B;.;B;.

Vest4

0.19

MVP

0.60

MPC

0.37

ClinPred

0.040

GERP RS

-1.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.14

gMVP

0.68

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