chr20-59865818-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS2

The NM_014258.4(SYCP2):​c.4368C>T​(p.Ser1456Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00497 in 1,431,402 control chromosomes in the GnomAD database, including 25 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0037 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0051 ( 23 hom. )

Consequence

SYCP2
NM_014258.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 2.50
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 20-59865818-G-A is Benign according to our data. Variant chr20-59865818-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2498889.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=2.5 with no splicing effect.
BS2
High AC in GnomAd4 at 553 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SYCP2NM_014258.4 linkuse as main transcriptc.4368C>T p.Ser1456Ser synonymous_variant 42/45 ENST00000357552.8 NP_055073.2 Q9BX26

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SYCP2ENST00000357552.8 linkuse as main transcriptc.4368C>T p.Ser1456Ser synonymous_variant 42/451 NM_014258.4 ENSP00000350162.2 Q9BX26
SYCP2ENST00000371001.6 linkuse as main transcriptc.4368C>T p.Ser1456Ser synonymous_variant 41/441 ENSP00000360040.2 Q9BX26
SYCP2ENST00000412613.1 linkuse as main transcriptc.426C>T p.Ser142Ser synonymous_variant 5/83 ENSP00000404358.1 A2A340

Frequencies

GnomAD3 genomes
AF:
0.00366
AC:
553
AN:
151208
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000920
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00171
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00242
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00666
Gnomad OTH
AF:
0.00241
GnomAD3 exomes
AF:
0.00329
AC:
631
AN:
191826
Hom.:
1
AF XY:
0.00326
AC XY:
346
AN XY:
106074
show subpopulations
Gnomad AFR exome
AF:
0.000633
Gnomad AMR exome
AF:
0.00136
Gnomad ASJ exome
AF:
0.000973
Gnomad EAS exome
AF:
0.0000807
Gnomad SAS exome
AF:
0.000345
Gnomad FIN exome
AF:
0.00230
Gnomad NFE exome
AF:
0.00583
Gnomad OTH exome
AF:
0.00165
GnomAD4 exome
AF:
0.00513
AC:
6567
AN:
1280078
Hom.:
23
Cov.:
22
AF XY:
0.00511
AC XY:
3239
AN XY:
633772
show subpopulations
Gnomad4 AFR exome
AF:
0.000914
Gnomad4 AMR exome
AF:
0.00132
Gnomad4 ASJ exome
AF:
0.000948
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000327
Gnomad4 FIN exome
AF:
0.00229
Gnomad4 NFE exome
AF:
0.00615
Gnomad4 OTH exome
AF:
0.00335
GnomAD4 genome
AF:
0.00365
AC:
553
AN:
151324
Hom.:
2
Cov.:
32
AF XY:
0.00302
AC XY:
223
AN XY:
73922
show subpopulations
Gnomad4 AFR
AF:
0.000918
Gnomad4 AMR
AF:
0.00171
Gnomad4 ASJ
AF:
0.00202
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00242
Gnomad4 NFE
AF:
0.00666
Gnomad4 OTH
AF:
0.00239
Alfa
AF:
0.00478
Hom.:
2
Bravo
AF:
0.00370
Asia WGS
AF:
0.000587
AC:
2
AN:
3420

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

SYCP2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 22, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2023SYCP2: BP4, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
8.5
DANN
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs151218291; hg19: chr20-58440873; COSMIC: COSV62767680; API