Genetic Variant CEP152:c.*194G>A (chr15-48738055-C-T) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001194998.2(CEP152):c.*194G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00148 in 624,450 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0044 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00054 ( 2 hom. )

Consequence

CEP152
NM_001194998.2 3_prime_UTR

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0460

Variant links:

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]

CEP152 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BP6

Variant 15-48738055-C-T is Benign according to our data. Variant chr15-48738055-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 316404.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00443 (674/152252) while in subpopulation AFR AF= 0.0155 (644/41556). AF 95% confidence interval is 0.0145. There are 1 homozygotes in gnomad4. There are 324 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 rank	MANE	Protein	UniProt
CEP152	NM_001194998.2 link	c.*194G>A		3_prime_UTR_variant	Exon 27 of 27	ENST00000380950.7	NP_001181927.1	O94986-4Q3B7A2

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
CEP152	ENST00000380950 link	c.*194G>A	3_prime_UTR_variant	Exon 27 of 27	1	NM_001194998.2	ENSP00000370337.2	O94986-4
CEP152	ENST00000561245.1 link	n.142+3576G>A	intron_variant	Intron 2 of 3	2		ENSP00000453591.1	H0YMG1
CEP152	ENST00000399334.7 link	c.*194G>A	downstream_gene_variant		1		ENSP00000382271.3	O94986-3

Frequencies

GnomAD3 genomes

AF:

0.00438

AC:

666

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0153

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00164

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:

0.00

Gnomad OTH

AF:

0.00239

GnomAD4 exome

AF:

0.000536

AC:

253

AN:

472198

Hom.:

Cov.:

AF XY:

0.000483

AC XY:

119

AN XY:

246544

show subpopulations

Gnomad4 AFR exome

AF:

0.0156

Gnomad4 AMR exome

AF:

0.00131

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000489

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000979

Gnomad4 OTH exome

AF:

0.00100

GnomAD4 genome

AF:

0.00443

AC:

674

AN:

152252

Hom.:

Cov.:

AF XY:

0.00435

AC XY:

324

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.0155

Gnomad4 AMR

AF:

0.00163

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.00394

Hom.:

Bravo

AF:

0.00487

Asia WGS

AF:

0.00145

AC:

AN:

3474

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Microcephaly 9, primary, autosomal recessive

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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:1

Oct 21, 2018

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Seckel syndrome 5

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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 benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.71

CADD

Benign

5.1

DANN

Benign

0.66

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Splicing

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over