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GeneBe

3-63615323-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001130003.2(SYNPR):c.700C>T(p.Pro234Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,676 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 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SYNPR
NM_001130003.2 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.699
Variant links:
Genes affected
SYNPR (HGNC:16507): (synaptoporin) Predicted to be located in neuron projection and synaptic vesicle. Predicted to be integral component of membrane. Predicted to be active in synaptic vesicle membrane. Predicted to be integral component of synaptic vesicle membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.034299552).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SYNPRNM_001130003.2 linkuse as main transcriptc.700C>T p.Pro234Ser missense_variant 6/6 ENST00000478300.6
SYNPRNM_144642.5 linkuse as main transcriptc.640C>T p.Pro214Ser missense_variant 5/5
SYNPRXM_017005731.1 linkuse as main transcriptc.748C>T p.Pro250Ser missense_variant 6/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SYNPRENST00000478300.6 linkuse as main transcriptc.700C>T p.Pro234Ser missense_variant 6/61 NM_001130003.2 P1Q8TBG9-2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152052
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248936
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135056
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461624
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727082
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152052
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74268
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
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:
0.00
ExAC
AF:
0.00000827
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 GeneticsDec 19, 2022The c.700C>T (p.P234S) alteration is located in exon 6 (coding exon 6) of the SYNPR gene. This alteration results from a C to T substitution at nucleotide position 700, causing the proline (P) at amino acid position 234 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
-0.30
T
BayesDel_noAF
Benign
-0.67
Cadd
Benign
13
Dann
Benign
0.70
Eigen
Benign
-0.94
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.22
N
LIST_S2
Benign
0.80
T;T;T;T
M_CAP
Benign
0.0070
T
MetaRNN
Benign
0.034
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.58
D;N;N;N;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.90
N;N;N;N
REVEL
Benign
0.030
Sift
Benign
0.45
T;T;T;T
Sift4G
Benign
0.40
T;T;T;T
Polyphen
0.0
.;B;B;.
Vest4
0.066
MutPred
0.16
.;.;Loss of glycosylation at P225 (P = 0.0392);.;
MVP
0.040
MPC
0.062
ClinPred
0.024
T
GERP RS
1.4
Varity_R
0.048
gMVP
0.50

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.

Other links and lift over

dbSNP: rs755131264; hg19: chr3-63600999; COSMIC: COSV55724942; COSMIC: COSV55724942; API