Genetic Variant NM_005842.4:c.512T>G (chr13-80337194-A-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005842.4(SPRY2):c.512T>G(p.Leu171Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,459,948 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SPRY2
NM_005842.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.77

Variant links:

Genes affected

SPRY2 (HGNC:11270): (sprouty RTK signaling antagonist 2) This gene encodes a protein belonging to the sprouty family. The encoded protein contains a carboxyl-terminal cysteine-rich domain essential for the inhibitory activity on receptor tyrosine kinase signaling proteins and is required for growth factor stimulated translocation of the protein to membrane ruffles. In primary dermal endothelial cells this gene is transiently upregulated in response to fibroblast growth factor two. This protein is indirectly involved in the non-cell autonomous inhibitory effect on fibroblast growth factor two signaling. The protein interacts with Cas-Br-M (murine) ectropic retroviral transforming sequence, and can function as a bimodal regulator of epidermal growth factor receptor/mitogen-activated protein kinase signaling. This protein may play a role in alveoli branching during lung development as shown by a similar mouse protein. [provided by RefSeq, Jul 2008]

SPRY2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.41418356).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPRY2	NM_005842.4 link	c.512T>G	p.Leu171Trp	missense_variant	Exon 2 of 2	ENST00000377104.4	NP_005833.1	O43597
SPRY2	NM_001318536.1 link	c.512T>G	p.Leu171Trp	missense_variant	Exon 2 of 2		NP_001305465.1	O43597
SPRY2	NM_001318537.1 link	c.512T>G	p.Leu171Trp	missense_variant	Exon 2 of 2		NP_001305466.1	O43597
SPRY2	NM_001318538.1 link	c.512T>G	p.Leu171Trp	missense_variant	Exon 2 of 2		NP_001305467.1	O43597

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPRY2	ENST00000377104.4 link	c.512T>G	p.Leu171Trp	missense_variant	Exon 2 of 2	1	NM_005842.4	ENSP00000366308.3		O43597
SPRY2	ENST00000377102.5 link	c.512T>G	p.Leu171Trp	missense_variant	Exon 2 of 2	1		ENSP00000366306.1		O43597

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250418

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135238

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1459948

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725872

show subpopulations

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000470

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 10, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.512T>G (p.L171W) alteration is located in exon 2 (coding exon 1) of the SPRY2 gene. This alteration results from a T to G substitution at nucleotide position 512, causing the leucine (L) at amino acid position 171 to be replaced by a tryptophan (W). 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

Benign

-0.025

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

DANN

Benign

0.95

DEOGEN2

Benign

0.40

T;T

Eigen

Uncertain

0.23

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.73

.;T

M_CAP

Benign

0.028

MetaRNN

Benign

0.41

T;T

MetaSVM

Benign

-0.83

MutationAssessor

Uncertain

2.6

M;M

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-3.1

D;D

REVEL

Benign

0.17

Sift

Uncertain

0.0090

D;D

Sift4G

Uncertain

0.044

D;D

Polyphen

0.81

P;P

Vest4

0.52

MutPred

0.37

Gain of catalytic residue at L171 (P = 8e-04);Gain of catalytic residue at L171 (P = 8e-04);

MVP

0.54

MPC

1.4

ClinPred

0.46

GERP RS

2.6

Varity_R

0.14

gMVP

0.47

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

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