1-114856580-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_003176.4(SYCP1):​c.116A>T​(p.Asn39Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000311 in 1,609,668 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SYCP1
NM_003176.4 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0560
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.81

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SYCP1NM_003176.4 linkuse as main transcriptc.116A>T p.Asn39Ile missense_variant 3/32 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.116A>T p.Asn39Ile missense_variant 3/321 NM_003176.4 ENSP00000358535.3 Q15431

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152160
Hom.:
0
Cov.:
31
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00000807
AC:
2
AN:
247924
Hom.:
0
AF XY:
0.00000747
AC XY:
1
AN XY:
133932
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000110
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:
0.00000274
AC:
4
AN:
1457508
Hom.:
0
Cov.:
29
AF XY:
0.00000276
AC XY:
2
AN XY:
725066
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000760
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152160
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
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:
0.000478
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

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 GeneticsMay 31, 2023The c.116A>T (p.N39I) alteration is located in exon 3 (coding exon 2) of the SYCP1 gene. This alteration results from a A to T substitution at nucleotide position 116, causing the asparagine (N) at amino acid position 39 to be replaced by an isoleucine (I). 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
0.13
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.25
T;.;T;T;T
Eigen
Benign
-0.15
Eigen_PC
Benign
-0.21
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.77
.;T;T;T;.
M_CAP
Benign
0.031
D
MetaRNN
Pathogenic
0.81
D;D;D;D;D
MetaSVM
Benign
-0.91
T
MutationAssessor
Uncertain
2.3
M;.;M;.;M
PrimateAI
Benign
0.37
T
PROVEAN
Uncertain
-3.0
D;D;.;.;D
REVEL
Uncertain
0.31
Sift
Uncertain
0.0080
D;D;.;.;D
Sift4G
Pathogenic
0.0010
D;D;D;D;D
Polyphen
0.98
D;.;D;.;D
Vest4
0.55
MutPred
0.84
Loss of ubiquitination at K40 (P = 0.0352);Loss of ubiquitination at K40 (P = 0.0352);Loss of ubiquitination at K40 (P = 0.0352);Loss of ubiquitination at K40 (P = 0.0352);Loss of ubiquitination at K40 (P = 0.0352);
MVP
0.33
MPC
0.76
ClinPred
0.88
D
GERP RS
-0.44
Varity_R
0.23
gMVP
0.54

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs750591776; hg19: chr1-115399201; API