15-48738267-T-C

Position:

• chr15-48738267-T-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6 BP7 BS1 BS2

The NM_001194998.2(CEP152):​c.5115A>G​(p.Pro1705=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000479 in 1,613,418 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0025 (1 hom., cov: 32)
  • Exomes 𝑓: 0.00027 (2 hom.)
• Consequence: CEP152 NM_001194998.2 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:5
• Conservation: PhyloP100: -1.63

Genes affected

CEP152 (HGNC:29298): (centrosomal protein 152) This gene encodes a protein that is thought to be involved with centrosome function. Mutations in this gene have been associated with primary microcephaly (MCPH4). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2010]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.73).
• BP6: Variant 15-48738267-T-C is Benign according to our data. Variant chr15-48738267-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 158272.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=1, Uncertain_significance=1}. Variant chr15-48738267-T-C is described in Lovd as [Likely_benign].
• BP7: Synonymous conserved (PhyloP=-1.63 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00253 (385/152310) while in subpopulation AFR AF= 0.00878 (365/41576). AF 95% confidence interval is 0.00804. There are 1 homozygotes in gnomad4. There are 195 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CEP152	NM_001194998.2	c.5115A>G	p.Pro1705=	synonymous_variant	27/27	ENST00000380950.7	NP_001181927.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CEP152	ENST00000380950.7	c.5115A>G	p.Pro1705=	synonymous_variant	27/27	1	NM_001194998.2	ENSP00000370337	A2
CEP152	ENST00000399334.7	c.4947A>G	p.Pro1649=	synonymous_variant	26/26	1		ENSP00000382271	P2
CEP152	ENST00000561245.1	c.142+3364A>G		intron_variant, NMD_transcript_variant		2		ENSP00000453591

Frequencies

GnomAD3 genomes AF: 0.00253 AC: 385 AN: 152192 Hom.: 1 Cov.: 32

Gnomad AFR AF: 0.00880

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000852

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: 0.0000294

Gnomad OTH AF: 0.00239

GnomAD3 exomes AF: 0.000607 AC: 151 AN: 248598 Hom.: 1 AF XY: 0.000415 AC XY: 56 AN XY: 134892

Gnomad AFR exome AF: 0.00918

Gnomad AMR exome AF: 0.000204

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000177

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000266 AC: 388 AN: 1461108 Hom.: 2 Cov.: 31 AF XY: 0.000219 AC XY: 159 AN XY: 726786

Gnomad4 AFR exome AF: 0.0100

Gnomad4 AMR exome AF: 0.000358

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: 0.00000450

Gnomad4 OTH exome AF: 0.000530

GnomAD4 genome AF: 0.00253 AC: 385 AN: 152310 Hom.: 1 Cov.: 32 AF XY: 0.00262 AC XY: 195 AN XY: 74486

Gnomad4 AFR AF: 0.00878

Gnomad4 AMR AF: 0.000850

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00236

Alfa AF: 0.000970 Hom.: 0

Bravo AF: 0.00298

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:5

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Microcephaly 9, primary, autosomal recessive Uncertain:1 Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Jan 27, 2014	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jan 22, 2021	- -

CEP152-related disorder Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 06, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Seckel syndrome 5 Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.73
CADD	Benign	0.48
DANN	Benign	0.68

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

Other links and lift over

dbSNP: rs1048042; hg19: chr15-49030464;