6-83853483-C-T

Variant names:

• chr6-83853483-C-T
• rs930754695
• NM_001009994.3:c.67C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001009994.3(RIPPLY2):​c.67C>T​(p.Pro23Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000039 in 1,539,632 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000036 (0 hom.)
• Consequence: RIPPLY2 NM_001009994.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.453
• Publications: 0 publications found

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

ENSG00000287705 (HGNC:):

ACMG classification

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=0.07970148).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RIPPLY2	NM_001009994.3	MANE Select	c.67C>T	p.Pro23Ser	missense	Exon 1 of 4	NP_001009994.1	Q5TAB7-1
	RIPPLY2	NM_001400900.1		c.67C>T	p.Pro23Ser	missense	Exon 1 of 3	NP_001387829.1
	RIPPLY2-CYB5R4	NR_174604.1		n.124C>T		non_coding_transcript_exon	Exon 1 of 18

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RIPPLY2	ENST00000369689.6	TSL:1 MANE Select	c.67C>T	p.Pro23Ser	missense	Exon 1 of 4	ENSP00000358703.1	Q5TAB7-1
	ENSG00000287705	ENST00000656981.1		n.685G>A		non_coding_transcript_exon	Exon 1 of 1
	RIPPLY2	ENST00000369687.2	TSL:2	c.-291C>T		upstream_gene	N/A	ENSP00000358701.1	Q5TAB7-2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152218 Hom.: 0 Cov.: 33

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: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000360 AC: 5 AN: 1387414 Hom.: 0 Cov.: 32 AF XY: 0.00000292 AC XY: 2 AN XY: 684392

African (AFR) AF: 0.00 AC: 0 AN: 31286

American (AMR) AF: 0.00 AC: 0 AN: 34662

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24964

East Asian (EAS) AF: 0.00 AC: 0 AN: 35656

South Asian (SAS) AF: 0.00 AC: 0 AN: 78940

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 42500

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4276

European-Non Finnish (NFE) AF: 0.00000464 AC: 5 AN: 1077532

Other (OTH) AF: 0.00 AC: 0 AN: 57598

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152218 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74360

African (AFR) AF: 0.00 AC: 0 AN: 41474

American (AMR) AF: 0.00 AC: 0 AN: 15284

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5176

South Asian (SAS) AF: 0.00 AC: 0 AN: 4838

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68032

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.078
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.67
CADD	Benign	12
DANN	Benign	0.97
DEOGEN2	Benign	0.14	T
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.6
FATHMM_MKL	Benign	0.031	N
LIST_S2	Benign	0.39	T
M_CAP	Uncertain	0.12	D
MetaRNN	Benign	0.080	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PhyloP100		-0.45
PrimateAI	Uncertain	0.62	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.018
Sift	Benign	0.19	T
Sift4G	Benign	0.35	T
Polyphen		0.020	B
Vest4		0.025
MutPred		0.16		Gain of phosphorylation at P23 (P = 0.0153)
MVP		0.18
MPC		0.26
ClinPred		0.13	T
GERP RS		0.57
PromoterAI		-0.12	Neutral
Varity_R		0.034
gMVP		0.051
Mutation Taster		=97/3	polymorphism

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: rs930754695; hg19: chr6-84563202;