chr1-37627051-C-A

Variant names:

• chr1-37627051-C-A
• rs4074961
• NM_001242908.2:c.94+2517G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001242908.2(RSPO1):​c.94+2517G>T variant causes a intron 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 30)
• Consequence: RSPO1 NM_001242908.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.460
• Publications: 0 publications found

Genes affected

RSPO1 (HGNC:21679): (R-spondin 1) This gene encodes a secreted activator protein with two cysteine-rich, furin-like domains and one thrombospondin type 1 domain. The encoded protein is a ligand for leucine-rich repeat-containing G-protein coupled receptors (LGR proteins) and positively regulates the Wnt signaling pathway. In mice, the protein induces the rapid onset of crypt cell proliferation and increases intestinal epithelial healing, providing a protective effect against chemotherapy-induced adverse effects. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2014]

RSPO1 Gene-Disease associations (from GenCC):

• palmoplantar keratoderma-XX sex reversal-predisposition to squamous cell carcinoma syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.69).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001242908.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RSPO1	NM_001242908.2	MANE Select	c.94+2517G>T		intron	N/A	NP_001229837.1
	RSPO1	NM_001038633.4		c.94+2517G>T		intron	N/A	NP_001033722.1
	RSPO1	NM_001242909.2		c.13+2838G>T		intron	N/A	NP_001229838.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RSPO1	ENST00000356545.7	TSL:1 MANE Select	c.94+2517G>T		intron	N/A	ENSP00000348944.2
	RSPO1	ENST00000401068.1	TSL:1	c.94+2517G>T		intron	N/A	ENSP00000383846.1
	RSPO1	ENST00000612451.4	TSL:1	c.94+2517G>T		intron	N/A	ENSP00000479832.1

Frequencies

GnomAD3 genomes Cov.: 30

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.69
CADD	Benign	6.3
DANN	Benign	0.86
PhyloP100		-0.46

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: rs4074961; hg19: chr1-38092723;