chr6-83853480-G-T

Variant names:

• chr6-83853480-G-T
• rs747616891
• NM_001009994.3:c.64G>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001009994.3(RIPPLY2):​c.64G>T​(p.Gly22Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000721 in 1,386,432 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: RIPPLY2 NM_001009994.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.50

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]

ENSG00000287705 (HGNC:):

ACMG classification

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=0.05500436).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RIPPLY2	NM_001009994.3	c.64G>T	p.Gly22Cys	missense_variant	Exon 1 of 4	ENST00000369689.6	NP_001009994.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RIPPLY2	ENST00000369689.6	c.64G>T	p.Gly22Cys	missense_variant	Exon 1 of 4	1	NM_001009994.3	ENSP00000358703.1
ENSG00000287705	ENST00000656981.1	n.688C>A		non_coding_transcript_exon_variant	Exon 1 of 1
RIPPLY2	ENST00000369687.2	c.-294G>T		upstream_gene_variant		2		ENSP00000358701.1
RIPPLY2	ENST00000635617.1	n.-110G>T		upstream_gene_variant		6

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000758 AC: 1 AN: 131984 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 72042

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000982

Gnomad SAS 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: 7.21e-7 AC: 1 AN: 1386432 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 683816

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000281

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.41	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	8.0
DANN	Benign	0.58
DEOGEN2	Benign	0.094	T
Eigen	Benign	-1.8
Eigen_PC	Benign	-1.9
FATHMM_MKL	Benign	0.023	N
LIST_S2	Benign	0.35	T
M_CAP	Benign	0.070	D
MetaRNN	Benign	0.055	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	0.080	N
REVEL	Benign	0.029
Sift	Benign	0.10	T
Sift4G	Benign	0.13	T
Polyphen		0.0020	B
Vest4		0.065
MutPred		0.24		Loss of catalytic residue at G22 (P = 0.0356);
MVP		0.18
MPC		0.13
ClinPred		0.096	T
GERP RS		-4.3
Varity_R		0.18
gMVP		0.060

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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

Other links and lift over

dbSNP: rs747616891; hg19: chr6-84563199;