Genetic Variant SFRP5:p.Pro176Leu (chr10-97771307-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003015.3(SFRP5):c.527C>T(p.Pro176Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

SFRP5
NM_003015.3 missense, splice_region

Scores

Splicing: ADA: 0.9990

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.67

Variant links:

Genes affected

SFRP5 (HGNC:10779): (secreted frizzled related protein 5) Secreted frizzled-related protein 5 (SFRP5) 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. SFRP5 and SFRP1 may be involved in determining the polarity of photoreceptor cells in the retina. SFRP5 is highly expressed in the retinal pigment epithelium, and moderately expressed in the pancreas. [provided by RefSeq, Jul 2008]

SFRP5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SFRP5	NM_003015.3 link	c.527C>T	p.Pro176Leu	missense_variant, splice_region_variant	Exon 1 of 3	ENST00000266066.4	NP_003006.2	Q5T4F7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SFRP5	ENST00000266066.4 link	c.527C>T	p.Pro176Leu	missense_variant, splice_region_variant	Exon 1 of 3	1	NM_003015.3	ENSP00000266066.3		Q5T4F7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000558

AC:

AN:

179066

Hom.:

AF XY:

0.00

AC XY:

AN XY:

98898

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000739

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

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1413318

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

698798

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

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.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 23, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.527C>T (p.P176L) alteration is located in exon 1 (coding exon 1) of the SFRP5 gene. This alteration results from a C to T substitution at nucleotide position 527, causing the proline (P) at amino acid position 176 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Uncertain

0.045

BayesDel_noAF

Benign

-0.17

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.45

Eigen

Benign

-0.13

Eigen_PC

Benign

0.056

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.90

M_CAP

Uncertain

0.096

MetaRNN

Uncertain

0.60

MetaSVM

Benign

-0.94

MutationAssessor

Benign

1.8

PrimateAI

Uncertain

0.78

PROVEAN

Uncertain

-2.9

REVEL

Benign

0.25

Sift

Benign

0.032

Sift4G

Uncertain

0.055

Polyphen

0.0010

Vest4

0.65

MutPred

0.46

Loss of glycosylation at T173 (P = 0.0419);

MVP

0.69

MPC

0.53

ClinPred

0.64

GERP RS

3.8

Varity_R

0.20

gMVP

0.51

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.95

SpliceAI score (max)

0.13

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over