3-134545813-A-C

Variant names:

• chr3-134545813-A-C
• NM_001353108.3:c.783A>C
• CEP63 p.Leu261Leu

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001353108.3(CEP63):​c.783A>C​(p.Leu261Leu) variant causes a synonymous 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L261L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CEP63 NM_001353108.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.130
• Publications: 0 publications found

Genes affected

CEP63 (HGNC:25815): (centrosomal protein 63) This gene encodes a protein with six coiled-coil domains. The protein is localized to the centrosome, a non-membraneous organelle that functions as the major microtubule-organizing center in animal cells. Several alternatively spliced transcript variants have been found, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

CEP63 Gene-Disease associations (from GenCC):

• Seckel syndrome 6

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
• autosomal recessive primary microcephaly

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000288700 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP7: Synonymous conserved (PhyloP=-0.13 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001353108.3. 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
	CEP63	NM_001353108.3	MANE Select	c.783A>C	p.Leu261Leu	synonymous	Exon 7 of 15	NP_001340037.1	Q96MT8-1
	CEP63	NM_025180.5		c.783A>C	p.Leu261Leu	synonymous	Exon 8 of 16	NP_079456.2
	CEP63	NM_001353109.1		c.783A>C	p.Leu261Leu	synonymous	Exon 7 of 14	NP_001340038.1	A0A804HIX3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CEP63	ENST00000675561.1	MANE Select	c.783A>C	p.Leu261Leu	synonymous	Exon 7 of 15	ENSP00000502085.1	Q96MT8-1
	CEP63	ENST00000383229.8	TSL:1	c.783A>C	p.Leu261Leu	synonymous	Exon 7 of 13	ENSP00000372716.3	Q96MT8-2
	CEP63	ENST00000332047.10	TSL:1	c.783A>C	p.Leu261Leu	synonymous	Exon 7 of 12	ENSP00000328382.5	Q96MT8-3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	2.9
DANN	Benign	0.71
PhyloP100		-0.13

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

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

Other links and lift over

hg19: chr3-134264655;