Genetic Variant SYNPO2L:p.Gly631Glu (chr10-73647760-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001114133.3(SYNPO2L):c.1892G>A(p.Gly631Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,820 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SYNPO2L
NM_001114133.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.97

Variant links:

Genes affected

SYNPO2L (HGNC:23532): (synaptopodin 2 like) Predicted to enable actin binding activity. Predicted to be involved in several processes, including positive regulation of Rho protein signal transduction; positive regulation of stress fiber assembly; and sarcomere organization. Located in cell junction; cytosol; and nuclear speck. [provided by Alliance of Genome Resources, Apr 2022]

SYNPO2L 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
SYNPO2L	NM_001114133.3 link	c.1892G>A	p.Gly631Glu	missense_variant	Exon 4 of 4	ENST00000394810.3	NP_001107605.1	Q9H987-1
SYNPO2L	NM_024875.5 link	c.1220G>A	p.Gly407Glu	missense_variant	Exon 2 of 2		NP_079151.2	Q9H987-2A0A024QZQ8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SYNPO2L	ENST00000394810.3 link	c.1892G>A	p.Gly631Glu	missense_variant	Exon 4 of 4	1	NM_001114133.3	ENSP00000378289.2		Q9H987-1
SYNPO2L	ENST00000372873.8 link	c.1220G>A	p.Gly407Glu	missense_variant	Exon 2 of 2	1		ENSP00000361964.4		Q9H987-2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461636

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727104

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

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

Jan 27, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1892G>A (p.G631E) alteration is located in exon 4 (coding exon 4) of the SYNPO2L gene. This alteration results from a G to A substitution at nucleotide position 1892, causing the glycine (G) at amino acid position 631 to be replaced by a glutamic acid (E). 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

0.69

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.40

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

.;T

Eigen

Benign

0.12

Eigen_PC

Benign

0.12

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.91

D;D

M_CAP

Benign

0.051

MetaRNN

Uncertain

0.48

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.2

.;M

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-3.5

D;D

REVEL

Benign

0.12

Sift

Uncertain

0.0080

D;D

Sift4G

Uncertain

0.011

D;D

Polyphen

0.99

D;P

Vest4

0.48

MutPred

0.21

.;Gain of solvent accessibility (P = 0.0456);

MVP

0.76

MPC

1.3

ClinPred

0.99

GERP RS

3.2

Varity_R

0.55

gMVP

0.34

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