chr1-114876129-C-T

Variant summary

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

The NM_003176.4(SYCP1):​c.718C>T​(p.His240Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000035 in 1,429,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

SYCP1
NM_003176.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.442
Variant links:
Genes affected
SYCP1 (HGNC:11487): (synaptonemal complex protein 1) Enables double-stranded DNA binding activity. Involved in protein homotetramerization. Predicted to be located in synaptonemal complex. Predicted to be active in central element; male germ cell nucleus; and transverse filament. [provided by Alliance of Genome Resources, Apr 2022]

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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=0.173469).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SYCP1NM_003176.4 linkuse as main transcriptc.718C>T p.His240Tyr missense_variant 10/32 ENST00000369522.8 NP_003167.2 Q15431A0A024R0I2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SYCP1ENST00000369522.8 linkuse as main transcriptc.718C>T p.His240Tyr missense_variant 10/321 NM_003176.4 ENSP00000358535.3 Q15431

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000126
AC:
3
AN:
237722
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
128750
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000314
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:
0.00000350
AC:
5
AN:
1429828
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
710534
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000119
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000183
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsJul 09, 2024The c.718C>T (p.H240Y) alteration is located in exon 10 (coding exon 9) of the SYCP1 gene. This alteration results from a C to T substitution at nucleotide position 718, causing the histidine (H) at amino acid position 240 to be replaced by a tyrosine (Y). 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
0.080
BayesDel_addAF
Benign
-0.064
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
14
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T;.;T;T;T
Eigen
Benign
-0.066
Eigen_PC
Benign
0.045
FATHMM_MKL
Benign
0.56
D
LIST_S2
Benign
0.72
.;T;T;T;.
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.17
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.4
M;.;M;.;M
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
-1.9
N;N;.;.;N
REVEL
Benign
0.20
Sift
Benign
0.10
T;T;.;.;T
Sift4G
Benign
0.56
T;T;T;T;T
Polyphen
0.26
B;.;B;.;B
Vest4
0.18
MVP
0.093
MPC
0.22
ClinPred
0.41
T
GERP RS
4.6
Varity_R
0.096
gMVP
0.24

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: rs142355824; hg19: chr1-115418750; API