Genetic Variant RNGTT:p.Arg225Arg (chr6-88904726-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003800.5(RNGTT):c.673C>A(p.Arg225Arg) variant causes a synonymous change. The variant allele was found at a frequency of 0.00000868 in 1,612,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

RNGTT
NM_003800.5 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.73

Variant links:

Genes affected

RNGTT (HGNC:10073): (RNA guanylyltransferase and 5'-phosphatase) Enables mRNA guanylyltransferase activity and triphosphatase activity. Involved in 7-methylguanosine mRNA capping. Predicted to be located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

RNGTT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RNGTT	NM_003800.5 link	c.673C>A	p.Arg225Arg	synonymous_variant	Exon 6 of 16	ENST00000369485.9	NP_003791.3	O60942-1Q7Z3R6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RNGTT	ENST00000369485.9 link	c.673C>A	p.Arg225Arg	synonymous_variant	Exon 6 of 16	1	NM_003800.5	ENSP00000358497.4	O60942-1
RNGTT	ENST00000369475.7 link	c.673C>A	p.Arg225Arg	synonymous_variant	Exon 6 of 15	1		ENSP00000358487.4	O60942-2
RNGTT	ENST00000538899.2 link	c.673C>A	p.Arg225Arg	synonymous_variant	Exon 6 of 12	1		ENSP00000442609.2	O60942-3
RNGTT	ENST00000627296.1 link	n.825C>A		non_coding_transcript_exon_variant	Exon 6 of 14	2

Frequencies

GnomAD3 genomes

AF:

0.00000661

AC:

AN:

151340

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:

0.0000974

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000890

AC:

AN:

1460908

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726726

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000117

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000661

AC:

AN:

151340

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

73820

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000974

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.40

CADD

Benign

DANN

Benign

0.63

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.52

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.52

Position offset: -1

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over