13-50927469-C-T

Variant names:

• chr13-50927469-C-T
• rs762281569
• NM_024570.4:c.127C>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong

The NM_024570.4(RNASEH2B):​c.127C>T​(p.Pro43Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000501 in 1,595,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P43H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: RNASEH2B NM_024570.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 4.63
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• Aicardi-Goutieres syndrome 2

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P
• Aicardi-Goutieres syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• prostate cancer

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PP3: MetaRNN computational evidence supports a deleterious effect, 0.962

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RNASEH2B	NM_024570.4	MANE Select	c.127C>T	p.Pro43Ser	missense	Exon 2 of 11	NP_078846.2
	RNASEH2B	NM_001411023.1		c.127C>T	p.Pro43Ser	missense	Exon 2 of 11	NP_001397952.1
	RNASEH2B	NM_001142279.2		c.127C>T	p.Pro43Ser	missense	Exon 2 of 10	NP_001135751.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RNASEH2B	ENST00000336617.8	TSL:1 MANE Select	c.127C>T	p.Pro43Ser	missense	Exon 2 of 11	ENSP00000337623.2
	RNASEH2B	ENST00000646960.1		c.127C>T	p.Pro43Ser	missense	Exon 2 of 13	ENSP00000496481.1
	RNASEH2B	ENST00000643159.1		c.37C>T	p.Pro13Ser	missense	Exon 4 of 16	ENSP00000495587.1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152044 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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

GnomAD2 exomes AF: 0.00000796 AC: 2 AN: 251300 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.00000485 AC: 7 AN: 1443560 Hom.: 0 Cov.: 26 AF XY: 0.00000695 AC XY: 5 AN XY: 719380

African (AFR) AF: 0.00 AC: 0 AN: 33060

American (AMR) AF: 0.0000224 AC: 1 AN: 44686

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25972

East Asian (EAS) AF: 0.00 AC: 0 AN: 39460

South Asian (SAS) AF: 0.0000466 AC: 4 AN: 85900

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53358

Middle Eastern (MID) AF: 0.000175 AC: 1 AN: 5726

European-Non Finnish (NFE) AF: 9.13e-7 AC: 1 AN: 1095574

Other (OTH) AF: 0.00 AC: 0 AN: 59824

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152044 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74242

African (AFR) AF: 0.00 AC: 0 AN: 41370

American (AMR) AF: 0.0000655 AC: 1 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10588

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Aicardi-Goutieres syndrome 2 (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.62
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Pathogenic	0.25
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.87	D
Eigen	Uncertain	0.48
Eigen_PC	Uncertain	0.33
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.92	D
M_CAP	Pathogenic	0.76	D
MetaRNN	Pathogenic	0.96	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.0	M
PhyloP100		4.6
PrimateAI	Benign	0.46	T
PROVEAN	Pathogenic	-6.7	D
REVEL	Pathogenic	0.86
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.016	D
Polyphen		1.0	D
Vest4		0.93
MutPred		0.79		Gain of catalytic residue at G46 (P = 0.0032)
MVP		0.96
MPC		0.33
ClinPred		0.96	D
GERP RS		4.2
PromoterAI		0.0010	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.86
gMVP		0.77
Mutation Taster		=45/55	disease causing

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

Other links and lift over

dbSNP: rs762281569; hg19: chr13-51501605;