Genetic Variant RIPPLY3:p.Ala23Thr (chr21-37006839-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018962.3(RIPPLY3):c.67G>A(p.Ala23Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000184 in 1,225,464 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 1 hom. )

Consequence

RIPPLY3
NM_018962.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.988

Variant links:

Genes affected

RIPPLY3 (HGNC:3047): (ripply transcriptional repressor 3) Predicted to be involved in embryonic pattern specification and negative regulation of transcription by RNA polymerase II. Predicted to act upstream of or within negative regulation of cell population proliferation. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

RIPPLY3 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.029904068).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RIPPLY3	NM_018962.3 link	c.67G>A	p.Ala23Thr	missense_variant	Exon 1 of 4	ENST00000329553.3	NP_061835.1	P57055-1
RIPPLY3	NM_001317768.2 link	c.-149+606G>A		intron_variant	Intron 1 of 3		NP_001304697.1	P57055-2
RIPPLY3	NM_001317777.1 link	c.-81+606G>A		intron_variant	Intron 1 of 2		NP_001304706.1	P57055-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RIPPLY3	ENST00000329553.3 link	c.67G>A	p.Ala23Thr	missense_variant	Exon 1 of 4	1	NM_018962.3	ENSP00000331734.2	P57055-1
RIPPLY3	ENST00000485272.5 link	n.84+606G>A		intron_variant	Intron 1 of 3	1
RIPPLY3	ENST00000490393.1 link	n.32+606G>A		intron_variant	Intron 1 of 2	1

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152014

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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:

0.000486

Gnomad OTH

AF:

0.000479

GnomAD4 exome

AF:

0.000176

AC:

189

AN:

1073342

Hom.:

Cov.:

AF XY:

0.000170

AC XY:

AN XY:

507322

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000247

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000150

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000180

Gnomad4 OTH exome

AF:

0.000232

GnomAD4 genome

AF:

0.000243

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000486

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.0000540

Hom.:

Bravo

AF:

0.000287

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.67G>A (p.A23T) alteration is located in exon 1 (coding exon 1) of the RIPPLY3 gene. This alteration results from a G to A substitution at nucleotide position 67, causing the alanine (A) at amino acid position 23 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.072

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.40

M_CAP

Benign

0.0065

MetaRNN

Benign

0.030

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.83

REVEL

Benign

0.040

Sift

Benign

0.11

Sift4G

Benign

0.35

Polyphen

0.39

Vest4

0.055

MutPred

0.13

Gain of phosphorylation at A23 (P = 0.0078);

MVP

0.061

MPC

0.068

ClinPred

0.10

GERP RS

0.73

Varity_R

0.031

gMVP

0.049

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