4-87490377-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_004684.6(SPARCL1):c.1427A>G(p.Asn476Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000994 in 1,609,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

SPARCL1
NM_004684.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67

Variant links:

Genes affected

SPARCL1 (HGNC:11220): (SPARC like 1) Predicted to enable calcium ion binding activity; collagen binding activity; and extracellular matrix binding activity. Predicted to be involved in anatomical structure development and regulation of synapse organization. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

SPARCL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity SPRL1_HUMAN

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.854

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SPARCL1	NM_004684.6 linkuse as main transcript	c.1427A>G	p.Asn476Ser	missense_variant	7/11	ENST00000282470.11
SPARCL1	NM_001128310.3 linkuse as main transcript	c.1427A>G	p.Asn476Ser	missense_variant	8/12
SPARCL1	NM_001291976.2 linkuse as main transcript	c.1052A>G	p.Asn351Ser	missense_variant	8/12
SPARCL1	NM_001291977.2 linkuse as main transcript	c.1052A>G	p.Asn351Ser	missense_variant	6/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPARCL1	ENST00000282470.11 linkuse as main transcript	c.1427A>G	p.Asn476Ser	missense_variant	7/11	1	NM_004684.6	P2	Q14515-1
SPARCL1	ENST00000418378.5 linkuse as main transcript	c.1427A>G	p.Asn476Ser	missense_variant	8/12	5		P2	Q14515-1
SPARCL1	ENST00000503414.5 linkuse as main transcript	c.1052A>G	p.Asn351Ser	missense_variant	8/12	2		A2	Q14515-2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000815

AC:

AN:

245484

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132610

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000608

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000755

AC:

AN:

1457684

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

725014

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000459

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:

0.00000810

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 23, 2022

The c.1427A>G (p.N476S) alteration is located in exon 8 (coding exon 6) of the SPARCL1 gene. This alteration results from a A to G substitution at nucleotide position 1427, causing the asparagine (N) at amino acid position 476 to be replaced by a serine (S). 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

Uncertain

0.35

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.33

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.50

D;D;.

Eigen

Pathogenic

0.85

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.97

M_CAP

Benign

0.065

MetaRNN

Pathogenic

0.85

D;D;D

MetaSVM

Benign

-0.53

MutationAssessor

Uncertain

2.7

M;M;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.49

PROVEAN

Pathogenic

-5.0

D;D;D

REVEL

Uncertain

0.43

Sift

Uncertain

0.0020

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.85

MutPred

0.59

Gain of catalytic residue at N476 (P = 0.0231);Gain of catalytic residue at N476 (P = 0.0231);.;

MVP

0.49

MPC

0.40

ClinPred

0.99

GERP RS

5.3

Varity_R

0.71

gMVP

0.50

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