5-142314290-G-C

Position:

• chr5-142314290-G-C

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Strong

The NM_001127496.3(SPRY4):​c.819C>G​(p.Cys273Trp) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SPRY4 NM_001127496.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.40

Genes affected

SPRY4 (HGNC:15533): (sprouty RTK signaling antagonist 4) This gene encodes a member of a family of cysteine- and proline-rich proteins. The encoded protein is an inhibitor of the receptor-transduced mitogen-activated protein kinase (MAPK) signaling pathway. Activity of this protein impairs the formation of active GTP-RAS. Nucleotide variation in this gene has been associated with hypogonadotropic hypogonadism 17 with or without anosmia. Alternative splicing results in a multiple transcript variants. [provided by RefSeq, Jun 2014]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a chain Protein sprouty homolog 4 (size 298) in uniprot entity SPY4_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_001127496.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.982

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SPRY4	NM_001127496.3	c.819C>G	p.Cys273Trp	missense_variant	2/2	ENST00000434127.3	NP_001120968.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SPRY4	ENST00000434127.3	c.819C>G	p.Cys273Trp	missense_variant	2/2	1	NM_001127496.3	ENSP00000399468.2
SPRY4	ENST00000344120.4	c.888C>G	p.Cys296Trp	missense_variant	3/3	1		ENSP00000344967.4
SPRY4	ENST00000643792.1	n.1501C>G		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Oct 20, 2022

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.29
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.48	T;D
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.28
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.94	D;D
M_CAP	Pathogenic	0.53	D
MetaRNN	Pathogenic	0.98	D;D
MetaSVM	Uncertain	-0.25	T
MutationAssessor	Pathogenic	3.3	.;M
PrimateAI	Uncertain	0.77	T
PROVEAN	Pathogenic	-10	D;D
REVEL	Pathogenic	0.68
Sift	Pathogenic	0.0	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		1.0	.;D
Vest4		0.88
MutPred		0.90		.;Loss of disorder (P = 0.0206);
MVP		0.84
MPC		1.3
ClinPred		1.0	D
GERP RS		2.0
Varity_R		0.94
gMVP		0.85

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-141693855;