Genetic Variant RNASEH2B:c.-181G>A (chr13-50909896-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_024570.4(RNASEH2B):c.-181G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000291 in 481,756 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

RNASEH2B
NM_024570.4 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.00

Publications

0 publications found

Variant links:

Genes affected

RNASEH2B (HGNC:25671): (ribonuclease H2 subunit B) RNase H2 is composed of a single catalytic subunit (A) and two non-catalytic subunits (B and C) and specifically degrades the RNA of RNA:DNA hybrids. The protein encoded by this gene is the non-catalytic B subunit of RNase H2, which is thought to play a role in DNA replication. Multiple transcript variants encoding different isoforms have been found for this gene. Defects in this gene are a cause of Aicardi-Goutieres syndrome type 2 (AGS2). [provided by RefSeq, Nov 2008]

RNASEH2B links:

RNASEH2B-AS1 (HGNC:39967): (RNASEH2B antisense RNA 1)

RNASEH2B-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.9).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024570.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
RNASEH2B	NM_024570.4	MANE Select	c.-181G>A	5_prime_UTR	Exon 1 of 11	NP_078846.2	Q5TBB1-1
RNASEH2B	NM_001411023.1		c.-181G>A	5_prime_UTR	Exon 1 of 11	NP_001397952.1	A0A2R8Y883
RNASEH2B	NM_001142279.2		c.-181G>A	5_prime_UTR	Exon 1 of 10	NP_001135751.1	Q5TBB1-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
RNASEH2B	ENST00000336617.8	TSL:1 MANE Select	c.-181G>A	5_prime_UTR	Exon 1 of 11	ENSP00000337623.2	Q5TBB1-1
RNASEH2B	ENST00000646960.1		c.-181G>A	5_prime_UTR	Exon 1 of 13	ENSP00000496481.1	A0A2R8Y7R8
RNASEH2B	ENST00000951840.1		c.-181G>A	5_prime_UTR	Exon 1 of 11	ENSP00000621899.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000364

AC:

AN:

329562

Hom.:

Cov.:

AF XY:

0.0000172

AC XY:

AN XY:

174448

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

7292

American (AMR)

AF:

0.00

AC:

AN:

7440

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

10480

East Asian (EAS)

AF:

0.00

AC:

AN:

22590

South Asian (SAS)

AF:

0.00

AC:

AN:

27584

European-Finnish (FIN)

AF:

0.00

AC:

AN:

26016

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1538

European-Non Finnish (NFE)

AF:

0.0000386

AC:

AN:

207198

Other (OTH)

AF:

0.000206

AC:

AN:

19424

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.537

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152194

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74350

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000302

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Aicardi-Goutieres syndrome 2 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

2.6

(source)

DANN

Benign

0.86

PhyloP100

-3.0

PromoterAI

0.061

Neutral

(source)

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over