chrX-49191477-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_003179.3(SYP):c.902G>A(p.Gly301Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000354 in 113,061 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000035 ( 0 hom., 0 hem., cov: 24)
Consequence
SYP
NM_003179.3 missense
NM_003179.3 missense
Scores
2
5
9
Clinical Significance
Conservation
PhyloP100: 3.80
Genes affected
SYP (HGNC:11506): (synaptophysin) This gene encodes an integral membrane protein of small synaptic vesicles in brain and endocrine cells. The protein also binds cholesterol and is thought to direct targeting of vesicle-associated membrane protein 2 (synaptobrevin) to intracellular compartments. Mutations in this gene are associated with an X-linked form of cognitive disability. [provided by RefSeq, Jul 2017]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (MetaRNN=0.27345017).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SYP | NM_003179.3 | c.902G>A | p.Gly301Asp | missense_variant | 6/7 | ENST00000263233.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SYP | ENST00000263233.9 | c.902G>A | p.Gly301Asp | missense_variant | 6/7 | 1 | NM_003179.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000354 AC: 4AN: 113061Hom.: 0 Cov.: 24 AF XY: 0.00 AC XY: 0AN XY: 35197
GnomAD3 genomes
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GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome ? AF: 0.0000354 AC: 4AN: 113061Hom.: 0 Cov.: 24 AF XY: 0.00 AC XY: 0AN XY: 35197
GnomAD4 genome
?
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Jan 21, 2022 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Benign
Cadd
Benign
Dann
Uncertain
DEOGEN2
Benign
T;T
FATHMM_MKL
Pathogenic
D
M_CAP
Pathogenic
D
MetaRNN
Benign
T;T
MetaSVM
Uncertain
D
MutationAssessor
Benign
L;L
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N
REVEL
Benign
Sift
Benign
T;T
Sift4G
Benign
T;T
Polyphen
B;B
Vest4
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at