CPLX1 p.Cys105Cys

Variant names:

• chr4-786590-C-C
• NM_006651.4:c.

Your query was ambiguous. Multiple possible variants found:

• chr4-786591--
• chr4-786591-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006651.4(CPLX1):​c. variant causes a exon region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CPLX1 NM_006651.4 exon_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.09
• Publications: 0 publications found

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]

CPLX1 Gene-Disease associations (from GenCC):

• developmental and epileptic encephalopathy, 63

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• familial infantile myoclonic epilepsy

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006651.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CPLX1	NM_006651.4	MANE Select	c.		exon_region	Exon 4 of 4	NP_006642.1	O14810

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CPLX1	ENST00000304062.11	TSL:1 MANE Select	c.		exon_region	Exon 4 of 4	ENSP00000305613.6	O14810
	CPLX1	ENST00000892263.1		c.		exon_region	Exon 4 of 4	ENSP00000562322.1
	CPLX1	ENST00000892264.1		c.		exon_region	Exon 4 of 4	ENSP00000562323.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-1.1

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr4-780378;