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chr4-786566-C-T

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Variant summary

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

The NM_006651.4(CPLX1):​c.340G>A​(p.Glu114Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,609,682 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E114D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CPLX1
NM_006651.4 missense

Scores

4
10
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.49
Variant links:
Genes affected
CPLX1 (HGNC:2309): (complexin 1) Proteins encoded by the complexin/synaphin gene family are cytosolic proteins that function in synaptic vesicle exocytosis. These proteins bind syntaxin, part of the SNAP receptor. The protein product of this gene binds to the SNAP receptor complex and disrupts it, allowing transmitter release. [provided by RefSeq, Jul 2008]

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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, 0.796

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPLX1NM_006651.4 linkuse as main transcriptc.340G>A p.Glu114Lys missense_variant 4/4 ENST00000304062.11
CPLX1XM_011513391.2 linkuse as main transcriptc.295G>A p.Glu99Lys missense_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPLX1ENST00000304062.11 linkuse as main transcriptc.340G>A p.Glu114Lys missense_variant 4/41 NM_006651.4 P1
CPLX1ENST00000505203.1 linkuse as main transcriptc.277G>A p.Glu93Lys missense_variant 5/52
CPLX1ENST00000504062.1 linkuse as main transcriptc.295G>A p.Glu99Lys missense_variant 3/33
CPLX1ENST00000506404.1 linkuse as main transcriptn.393G>A non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1457642
Hom.:
0
Cov.:
36
AF XY:
0.00000138
AC XY:
1
AN XY:
724838
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152040
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74248
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 20, 2023The c.340G>A (p.E114K) alteration is located in exon 4 (coding exon 3) of the CPLX1 gene. This alteration results from a G to A substitution at nucleotide position 340, causing the glutamic acid (E) at amino acid position 114 to be replaced by a lysine (K). 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
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.080
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;.;.
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.80
D;D;D
MetaSVM
Benign
-0.41
T
MutationAssessor
Uncertain
2.5
M;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-1.8
N;N;N
REVEL
Benign
0.27
Sift
Uncertain
0.0090
D;D;D
Sift4G
Uncertain
0.0070
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.38
MutPred
0.72
Gain of ubiquitination at E114 (P = 0.0054);.;.;
MVP
0.53
MPC
0.98
ClinPred
0.98
D
GERP RS
3.8
Varity_R
0.25
gMVP
0.59

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: rs200267276; hg19: chr4-780354; COSMIC: COSV99072887; COSMIC: COSV99072887; API