Genetic Variant RIPPLY2:p.Pro23Ala (chr6-83853483-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001009994.3(RIPPLY2):c.67C>G(p.Pro23Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P23S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

RIPPLY2
NM_001009994.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.453

Publications

0 publications found

Variant links:

Genes affected

RIPPLY2 (HGNC:21390): (ripply transcriptional repressor 2) This gene encodes a nuclear protein that belongs to a novel family of proteins required for vertebrate somitogenesis. Members of this family have a tetrapeptide WRPW motif that is required for interaction with the transcriptional repressor Groucho and a carboxy-terminal Ripply homology domain/Bowline-DSCR-Ledgerline conserved region required for transcriptional repression. Null mutant mice die soon after birth and display defects in axial skeleton segmentation due to defective somitogenesis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

RIPPLY2 Gene-Disease associations (from GenCC):

spondylocostal dysostosis 6, autosomal recessive
Inheritance: AR, Unknown Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
autosomal recessive spondylocostal dysostosis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

RIPPLY2 links:

ENSG00000287705 (HGNC:):

ENSG00000287705 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.084322006).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001009994.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RIPPLY2	NM_001009994.3	MANE Select	c.67C>G	p.Pro23Ala	missense	Exon 1 of 4	NP_001009994.1	Q5TAB7-1
RIPPLY2	NM_001400900.1		c.67C>G	p.Pro23Ala	missense	Exon 1 of 3	NP_001387829.1
RIPPLY2-CYB5R4	NR_174604.1		n.124C>G		non_coding_transcript_exon	Exon 1 of 18

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RIPPLY2	ENST00000369689.6	TSL:1 MANE Select	c.67C>G	p.Pro23Ala	missense	Exon 1 of 4	ENSP00000358703.1	Q5TAB7-1
ENSG00000287705	ENST00000656981.1		n.685G>C		non_coding_transcript_exon	Exon 1 of 1
RIPPLY2	ENST00000369687.2	TSL:2	c.-291C>G		upstream_gene	N/A	ENSP00000358701.1	Q5TAB7-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.058

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.15

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.068

LIST_S2

Benign

0.36

M_CAP

Uncertain

0.087

MetaRNN

Benign

0.084

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

PhyloP100

-0.45

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-1.3

REVEL

Benign

0.022

Sift

Benign

0.053

Sift4G

Benign

0.53

Polyphen

0.0

Vest4

0.098

MutPred

0.17

Loss of loop (P = 0.0073)

MVP

0.18

MPC

0.15

ClinPred

0.087

GERP RS

0.57

PromoterAI

0.076

Neutral

(source)

Varity_R

0.036

gMVP

0.036

Mutation Taster

=95/5

polymorphism

(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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over