Variant 20-59868538-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014258.4(SYCP2):c.3863T>G(p.Ile1288Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,454,192 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: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

SYCP2
NM_014258.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.46

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14777216).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SYCP2	NM_014258.4 linkuse as main transcript	c.3863T>G	p.Ile1288Arg	missense_variant	38/45	ENST00000357552.8	NP_055073.2	Q9BX26

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SYCP2	ENST00000357552.8 linkuse as main transcript	c.3863T>G	p.Ile1288Arg	missense_variant	38/45	1	NM_014258.4	ENSP00000350162.2	Q9BX26
SYCP2	ENST00000371001.6 linkuse as main transcript	c.3863T>G	p.Ile1288Arg	missense_variant	37/44	1		ENSP00000360040.2	Q9BX26
SYCP2	ENST00000412613.1 linkuse as main transcript	c.46+297T>G		intron_variant		3		ENSP00000404358.1	A2A340

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.88e-7

AC:

AN:

1454192

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

723208

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:

9.01e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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.3863T>G (p.I1288R) alteration is located in exon 37 (coding exon 36) of the SYCP2 gene. This alteration results from a T to G substitution at nucleotide position 3863, causing the isoleucine (I) at amino acid position 1288 to be replaced by an arginine (R). 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

0.085

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.74

DEOGEN2

Benign

0.094

T;T

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.57

LIST_S2

Benign

0.38

.;T

M_CAP

Benign

0.0051

MetaRNN

Benign

0.15

T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.0

N;N

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.0

N;N

REVEL

Benign

0.096

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.059

T;T

Polyphen

0.0020

B;B

Vest4

0.42

MutPred

0.51

Gain of MoRF binding (P = 0.0119);Gain of MoRF binding (P = 0.0119);

MVP

0.068

MPC

0.045

ClinPred

0.23

GERP RS

4.6

Varity_R

0.092

gMVP

0.061

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over