19-7632513-G-C
Position:
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_174895.3(PCP2):c.171C>G(p.Ser57Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Consequence
PCP2
NM_174895.3 missense
NM_174895.3 missense
Scores
19
Clinical Significance
Conservation
PhyloP100: -0.189
Genes affected
PCP2 (HGNC:30209): (Purkinje cell protein 2) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity. Predicted to act upstream of or within rhodopsin mediated signaling pathway. Predicted to be located in neuronal cell body. [provided by Alliance of Genome Resources, Apr 2022]
STXBP2 (HGNC:11445): (syntaxin binding protein 2) This gene encodes a member of the STXBP/unc-18/SEC1 family. The encoded protein is involved in intracellular trafficking, control of SNARE (soluble NSF attachment protein receptor) complex assembly, and the release of cytotoxic granules by natural killer cells. Mutations in this gene are associated with familial hemophagocytic lymphohistiocytosis. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jan 2013]
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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=0.0605672).
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PCP2 | ENST00000311069.6 | c.171C>G | p.Ser57Arg | missense_variant | 3/4 | 1 | NM_174895.3 | ENSP00000310585.4 | ||
| ENSG00000268400 | ENST00000698368.1 | n.114+1854G>C | intron_variant | ENSP00000513686.1 |
Frequencies
GnomAD3 genomes
GnomAD3 genomes
Cov.:
32
GnomAD4 exome Cov.: 33
GnomAD4 exome
Cov.:
33
GnomAD4 genome
GnomAD4 genome
Cov.:
32
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 submitter | clinical testing | Ambry Genetics | Aug 14, 2023 | The c.171C>G (p.S57R) alteration is located in exon 3 (coding exon 3) of the PCP2 gene. This alteration results from a C to G substitution at nucleotide position 171, causing the serine (S) at amino acid position 57 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
DEOGEN2
Benign
.;T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Benign
T;T
M_CAP
Benign
T
MetaRNN
Benign
T;T
MetaSVM
Benign
T
MutationAssessor
Benign
.;L
PrimateAI
Benign
T
PROVEAN
Benign
.;N
REVEL
Benign
Sift
Benign
.;T
Sift4G
Benign
T;T
Polyphen
0.0030
.;B
Vest4
MutPred
0.14
.;Loss of phosphorylation at S57 (P = 0.023);
MVP
MPC
0.13
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.