chr15-48756471-T-A

Variant names:

• chr15-48756471-T-A
• rs117557829
• NM_001194998.2:c.2777A>T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The NM_001194998.2(CEP152):​c.2777A>T​(p.Glu926Val) variant causes a missense change. The variant allele was found at a frequency of 0.000302 in 1,613,424 control chromosomes in the GnomAD database, including 8 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 0.00024 (2 hom., cov: 32)
  • Exomes 𝑓: 0.00031 (6 hom.)
• Consequence: CEP152 NM_001194998.2 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:4 O:1
• Conservation: PhyloP100: 5.76

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 -13 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.007870495).
• BP6: Variant 15-48756471-T-A is Benign according to our data. Variant chr15-48756471-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 158246.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1, not_provided=1}.
• BS1: Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000243 (37/152258) while in subpopulation EAS AF= 0.00715 (37/5176). AF 95% confidence interval is 0.00533. There are 2 homozygotes in gnomad4. There are 22 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEP152	NM_001194998.2	c.2777A>T	p.Glu926Val	missense_variant	Exon 20 of 27	ENST00000380950.7	NP_001181927.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEP152	ENST00000380950.7	c.2777A>T	p.Glu926Val	missense_variant	Exon 20 of 27	1	NM_001194998.2	ENSP00000370337.2
CEP152	ENST00000399334.7	c.2777A>T	p.Glu926Val	missense_variant	Exon 20 of 26	1		ENSP00000382271.3
CEP152	ENST00000325747.9	c.2498A>T	p.Glu833Val	missense_variant	Exon 19 of 25	1		ENSP00000321000.5

Frequencies

GnomAD3 genomes AF: 0.000243 AC: 37 AN: 152140 Hom.: 2 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00713

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000580 AC: 144 AN: 248204 Hom.: 1 AF XY: 0.000453 AC XY: 61 AN XY: 134676

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00780

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000889

Gnomad OTH exome AF: 0.000332

GnomAD4 exome AF: 0.000308 AC: 450 AN: 1461166 Hom.: 6 Cov.: 32 AF XY: 0.000300 AC XY: 218 AN XY: 726894

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0111

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.0000828

GnomAD4 genome AF: 0.000243 AC: 37 AN: 152258 Hom.: 2 Cov.: 32 AF XY: 0.000295 AC XY: 22 AN XY: 74460

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00715

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000381 Hom.: 0

Bravo AF: 0.000295

ExAC AF: 0.000621 AC: 75

Asia WGS AF: 0.00375 AC: 13 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:4 Other:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Microcephaly 9, primary, autosomal recessive Uncertain:1 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. -

Feb 08, 2013

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

CEP152-related disorder Benign:1

Jun 13, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

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

not provided Benign:1

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

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: 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. -

Seckel syndrome 5;C3553886:Microcephaly 9, primary, autosomal recessive Other:1

-

GenomeConnect, ClinGen

Significance: not provided

Review Status: no classification provided

Collection Method: phenotyping only

GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.24
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Benign	0.16	T;.;.
Eigen	Uncertain	0.53
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.81	T;T;T
M_CAP	Benign	0.051	D
MetaRNN	Benign	0.0079	T;T;T
MetaSVM	Uncertain	-0.22	T
MutationAssessor	Uncertain	2.3	M;M;.
PrimateAI	Benign	0.34	T
PROVEAN	Uncertain	-3.6	D;D;D
REVEL	Benign	0.20
Sift	Uncertain	0.0010	D;D;D
Sift4G	Uncertain	0.0020	D;D;D
Polyphen		1.0	D;.;D
Vest4		0.41
MVP		0.92
MPC		0.35
ClinPred		0.13	T
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.32
gMVP		0.31

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: rs117557829; hg19: chr15-49048668; COSMIC: COSV100358387;