5-136988566-G-C

Variant summary

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

The NM_004598.4(SPOCK1):c.784C>G(p.Leu262Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SPOCK1 NM_004598.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.13

Genes affected

SPOCK1 (HGNC:11251): (SPARC (osteonectin), cwcv and kazal like domains proteoglycan 1) This gene encodes the protein core of a seminal plasma proteoglycan containing chondroitin- and heparan-sulfate chains. The protein's function is unknown, although similarity to thyropin-type cysteine protease-inhibitors suggests its function may be related to protease inhibition. [provided by RefSeq, Jul 2008]

ACMG classification

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/exons	MANE	UniProt
SPOCK1	NM_004598.4	c.784C>G	p.Leu262Val	missense_variant	8/11	ENST00000394945.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPOCK1	ENST00000394945.6	c.784C>G	p.Leu262Val	missense_variant	8/11	1	NM_004598.4	P1
SPOCK1	ENST00000508642.1	n.486C>G		non_coding_transcript_exon_variant	3/3	4
SPOCK1	ENST00000509978.1	n.174C>G		non_coding_transcript_exon_variant	2/5	4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 22, 2023

The c.784C>G (p.L262V) alteration is located in exon 8 (coding exon 7) of the SPOCK1 gene. This alteration results from a C to G substitution at nucleotide position 784, causing the leucine (L) at amino acid position 262 to be replaced by a valine (V). 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	Pathogenic	0.90
BayesDel_addAF	Uncertain	0.081	D
BayesDel_noAF	Benign	-0.12
Cadd	Pathogenic	27
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.48	T;T
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.93
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D;D
M_CAP	Benign	0.027	D
MetaRNN	Uncertain	0.70	D;D
MetaSVM	Benign	-0.36	T
MutationAssessor	Uncertain	2.1	M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.79	T
PROVEAN	Benign	-2.1	N;.
REVEL	Benign	0.29
Sift	Uncertain	0.027	D;.
Sift4G	Uncertain	0.036	D;D
Polyphen		1.0	D;.
Vest4		0.74
MutPred		0.64		Loss of stability (P = 0.0435);.;
MVP		0.61
MPC		0.89
ClinPred		0.87	D
GERP RS		6.1
Varity_R		0.23
gMVP		0.77

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: chr5-136324255;