Genetic Variant RNASET2:p.Pro216Pro (chr6-166929711-C-G) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS1

The NM_003730.6(RNASET2):c.648G>C(p.Pro216Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000407 in 1,614,064 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P216P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00043 ( 1 hom. )

Consequence

RNASET2
NM_003730.6 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: -2.91

Publications

10 publications found

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 Gene-Disease associations (from GenCC):

cystic leukoencephalopathy without megalencephaly
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, Orphanet, Illumina

RNASET2 links:

ENSG00000249141 (HGNC:):

ENSG00000249141 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 6-166929711-C-G is Benign according to our data. Variant chr6-166929711-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 907287.

BP7

Synonymous conserved (PhyloP=-2.91 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.000425 (622/1461860) while in subpopulation NFE AF = 0.000525 (584/1112008). AF 95% confidence interval is 0.000489. There are 1 homozygotes in GnomAdExome4. There are 279 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003730.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RNASET2	NM_003730.6	MANE Select	c.648G>C	p.Pro216Pro	synonymous	Exon 9 of 9	NP_003721.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RNASET2	ENST00000508775.6	TSL:1 MANE Select	c.648G>C	p.Pro216Pro	synonymous	Exon 9 of 9	ENSP00000426455.2	O00584-1
ENSG00000249141	ENST00000507747.1	TSL:5	c.432+4380G>C		intron	N/A	ENSP00000426906.1	H0YAE9
RNASET2	ENST00000870284.1		c.786G>C	p.Pro262Pro	synonymous	Exon 10 of 10	ENSP00000540343.1

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152086

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.000426

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000259

AC:

AN:

251412

AF XY:

0.000280

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000484

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000425

AC:

622

AN:

1461860

Hom.:

Cov.:

AF XY:

0.000384

AC XY:

279

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33480

American (AMR)

AF:

0.000134

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.000169

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000525

AC:

584

AN:

1112008

Other (OTH)

AF:

0.000348

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

107

143

179

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

120

<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:

0.000230

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74408

show subpopulations

African (AFR)

AF:

0.0000723

AC:

AN:

41508

American (AMR)

AF:

0.000196

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000426

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.532

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00000996

Hom.:

262

Bravo

AF:

0.000246

EpiCase

AF:

0.000436

EpiControl

AF:

0.000593

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Cystic leukoencephalopathy without megalencephaly (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

0.0040

(source)

DANN

Benign

0.52

PhyloP100

-2.9

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over