Variant chr20-59869895-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_014258.4(SYCP2):c.3644A>G(p.Asn1215Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000168 in 1,606,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

SYCP2
NM_014258.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.341

Variant links:

Genes affected

SYCP2 (HGNC:11490): (synaptonemal complex protein 2) The synaptonemal complex is a proteinaceous structure that links homologous chromosomes during the prophase of meiosis. The protein encoded by this gene is a major component of the synaptonemal complex and may bind DNA at scaffold attachment regions. The encoded protein requires synaptonemal complex protein 3, but not 1, for inclusion in the synaptonemal complex. [provided by RefSeq, Jul 2008]

SYCP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.030228913).

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SYCP2	NM_014258.4 linkuse as main transcript	c.3644A>G	p.Asn1215Ser	missense_variant	36/45	ENST00000357552.8	NP_055073.2	Q9BX26

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SYCP2	ENST00000357552.8 linkuse as main transcript	c.3644A>G	p.Asn1215Ser	missense_variant	36/45	1	NM_014258.4	ENSP00000350162.2		Q9BX26
SYCP2	ENST00000371001.6 linkuse as main transcript	c.3644A>G	p.Asn1215Ser	missense_variant	35/44	1		ENSP00000360040.2		Q9BX26

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

151802

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000964

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000441

AC:

AN:

249408

Hom.:

AF XY:

0.0000519

AC XY:

AN XY:

134880

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000382

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1454580

Hom.:

Cov.:

AF XY:

0.0000207

AC XY:

AN XY:

723890

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000304

Gnomad4 SAS exome

AF:

0.0000465

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000833

GnomAD4 genome

AF:

0.0000395

AC:

AN:

151920

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74266

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000966

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3476

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 11, 2022

The c.3644A>G (p.N1215S) alteration is located in exon 35 (coding exon 34) of the SYCP2 gene. This alteration results from a A to G substitution at nucleotide position 3644, causing the asparagine (N) at amino acid position 1215 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

Benign

0.065

BayesDel_addAF

Benign

-0.62

BayesDel_noAF

Benign

-0.80

CADD

Benign

4.5

DANN

Benign

0.47

DEOGEN2

Benign

0.073

T;T

Eigen

Benign

-0.94

Eigen_PC

Benign

-0.94

FATHMM_MKL

Benign

0.036

LIST_S2

Benign

0.58

.;T

M_CAP

Benign

0.0034

MetaRNN

Benign

0.030

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

1.1

L;L

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.64

N;N

REVEL

Benign

0.020

Sift

Benign

0.24

T;T

Sift4G

Benign

0.73

T;T

Polyphen

0.017

B;B

Vest4

0.20

MutPred

0.16

Gain of phosphorylation at N1215 (P = 0.0275);Gain of phosphorylation at N1215 (P = 0.0275);

MVP

0.068

MPC

0.026

ClinPred

0.030

GERP RS

2.2

Varity_R

0.041

gMVP

0.053

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