chr7-37921162-C-G

Variant names:

• chr7-37921162-C-G
• rs141000221
• NM_017549.5:c.223C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_017549.5(EPDR1):​c.223C>G​(p.Arg75Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000693 in 1,442,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R75S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: EPDR1 NM_017549.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.95
• Publications: 0 publications found

Genes affected

EPDR1 (HGNC:17572): (ependymin related 1) The protein encoded by this gene is a type II transmembrane protein that is similar to two families of cell adhesion molecules, the protocadherins and ependymins. This protein may play a role in calcium-dependent cell adhesion. This protein is glycosylated, and the orthologous mouse protein is localized to the lysosome. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 8. [provided by RefSeq, Aug 2011]

ENSG00000290149 (HGNC:):

SFRP4 (HGNC:10778): (secreted frizzled related protein 4) Secreted frizzled-related protein 4 (SFRP4) is a member of the SFRP family that contains a cysteine-rich domain homologous to the putative Wnt-binding site of Frizzled proteins. SFRPs act as soluble modulators of Wnt signaling. The expression of SFRP4 in ventricular myocardium correlates with apoptosis related gene expression. [provided by RefSeq, Jul 2008]

SFRP4 Gene-Disease associations (from GenCC):

• Pyle disease

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.907

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017549.5. 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
	EPDR1	NM_017549.5	MANE Select	c.223C>G	p.Arg75Gly	missense	Exon 1 of 3	NP_060019.2	Q9UM22-1
	EPDR1	NM_001242946.2		c.223C>G	p.Arg75Gly	missense	Exon 1 of 2	NP_001229875.2	Q9UM22-2
	EPDR1	NM_001242948.2		c.-204C>G		upstream_gene	N/A	NP_001229877.1	Q9UM22-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EPDR1	ENST00000199448.9	TSL:1 MANE Select	c.223C>G	p.Arg75Gly	missense	Exon 1 of 3	ENSP00000199448.4	Q9UM22-1
	EPDR1	ENST00000423717.1	TSL:1	c.223C>G	p.Arg75Gly	missense	Exon 1 of 2	ENSP00000409211.1	Q9UM22-2
	ENSG00000290149	ENST00000476620.1	TSL:4	c.-37-27678C>G		intron	N/A	ENSP00000425858.1	D6RIH7

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.93e-7 AC: 1 AN: 1442418 Hom.: 0 Cov.: 32 AF XY: 0.00000139 AC XY: 1 AN XY: 718148

African (AFR) AF: 0.00 AC: 0 AN: 32514

American (AMR) AF: 0.00 AC: 0 AN: 44476

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25922

East Asian (EAS) AF: 0.00 AC: 0 AN: 39156

South Asian (SAS) AF: 0.00 AC: 0 AN: 86148

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 38252

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5630

European-Non Finnish (NFE) AF: 9.01e-7 AC: 1 AN: 1110262

Other (OTH) AF: 0.00 AC: 0 AN: 60058

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.86
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.25	T
Eigen	Uncertain	0.44
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Benign	0.54	D
LIST_S2	Benign	0.86	D
M_CAP	Pathogenic	0.82	D
MetaRNN	Pathogenic	0.91	D
MetaSVM	Benign	-0.40	T
MutationAssessor	Uncertain	2.9	M
PhyloP100		1.9
PrimateAI	Pathogenic	0.86	D
PROVEAN	Pathogenic	-5.5	D
REVEL	Pathogenic	0.70
Sift	Uncertain	0.012	D
Sift4G	Pathogenic	0.0	D
Vest4		0.94
MVP		0.29
MPC		0.48
ClinPred		0.99	D
GERP RS		4.0
PromoterAI		0.079	Neutral
Varity_R		0.88
gMVP		0.91
Mutation Taster		=29/71	disease causing

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: rs141000221; hg19: chr7-37960764;