rs150399616

chr11-95817854-T-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BS1_Supporting

The NM_014679.5(CEP57):c.572T>A(p.Leu191His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0007 in 1,613,964 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.00046 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00072 (1 hom.)
• Consequence: CEP57 NM_014679.5 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:4
• Conservation: PhyloP100: 2.57

Genes affected

CEP57 (HGNC:30794): (centrosomal protein 57) This gene encodes a cytoplasmic protein called Translokin. This protein localizes to the centrosome and has a function in microtubular stabilization. The N-terminal half of this protein is required for its centrosome localization and for its multimerization, and the C-terminal half is required for nucleating, bundling and anchoring microtubules to the centrosomes. This protein specifically interacts with fibroblast growth factor 2 (FGF2), sorting nexin 6, Ran-binding protein M and the kinesins KIF3A and KIF3B, and thus mediates the nuclear translocation and mitogenic activity of the FGF2. It also interacts with cyclin D1 and controls nucleocytoplasmic distribution of the cyclin D1 in quiescent cells. This protein is crucial for maintaining correct chromosomal number during cell division. Mutations in this gene cause mosaic variegated aneuploidy syndrome, a rare autosomal recessive disorder. Multiple alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2011]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.021930486).
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00046 (70/152284) while in subpopulation NFE AF= 0.000823 (56/68024). AF 95% confidence interval is 0.000651. There are 0 homozygotes in gnomad4. There are 24 alleles in male gnomad4 subpopulation. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CEP57	NM_014679.5	c.572T>A	p.Leu191His	missense_variant	5/11	ENST00000325542.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CEP57	ENST00000325542.10	c.572T>A	p.Leu191His	missense_variant	5/11	1	NM_014679.5

Frequencies

GnomAD3 genomes AF: 0.000460 AC: 70 AN: 152166 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000193

Gnomad AMI AF: 0.00110

Gnomad AMR AF: 0.000327

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: 0.000823

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000533 AC: 134 AN: 251426 Hom.: 0 AF XY: 0.000523 AC XY: 71 AN XY: 135874

Gnomad AFR exome AF: 0.000308

Gnomad AMR exome AF: 0.000231

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.0000462

Gnomad NFE exome AF: 0.00100

Gnomad OTH exome AF: 0.000815

GnomAD4 exome AF: 0.000725 AC: 1059 AN: 1461680 Hom.: 1 Cov.: 30 AF XY: 0.000703 AC XY: 511 AN XY: 727142

Gnomad4 AFR exome AF: 0.000120

Gnomad4 AMR exome AF: 0.000157

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.0000562

Gnomad4 NFE exome AF: 0.000917

Gnomad4 OTH exome AF: 0.000397

GnomAD4 genome AF: 0.000460 AC: 70 AN: 152284 Hom.: 0 Cov.: 32 AF XY: 0.000322 AC XY: 24 AN XY: 74466

Gnomad4 AFR AF: 0.000192

Gnomad4 AMR AF: 0.000327

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000823

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000808 Hom.: 0

Bravo AF: 0.000582

TwinsUK AF: 0.00135 AC: 5

ALSPAC AF: 0.00259 AC: 10

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.000698 AC: 6

ExAC AF: 0.000684 AC: 83

EpiCase AF: 0.000763

EpiControl AF: 0.000948

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Mosaic variegated aneuploidy syndrome 2 Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Oct 31, 2018	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Dec 17, 2023	This sequence change replaces leucine, which is neutral and non-polar, with histidine, which is basic and polar, at codon 191 of the CEP57 protein (p.Leu191His). This variant is present in population databases (rs150399616, gnomAD 0.1%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with CEP57-related conditions. ClinVar contains an entry for this variant (Variation ID: 408446). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CEP57 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitter	clinical testing	MGZ Medical Genetics Center	May 24, 2022	- -

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden

Nov 03, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.42	T
BayesDel_noAF	Benign	-0.39
Cadd	Uncertain	23
Dann	Benign	0.91
DEOGEN2	Benign	0.034	T;.;T;.;T;.;.;.
Eigen	Benign	-0.29
Eigen_PC	Benign	-0.058
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Benign	0.70	T;T;T;T;T;T;T;T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.022	T;T;T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	0.99	N;N;N;N;N
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-1.8	N;N;N;D;D;D;N;N
REVEL	Benign	0.12
Sift	Benign	0.44	T;T;T;T;T;T;T;T
Sift4G	Benign	0.59	T;T;T;T;T;T;T;T
Polyphen		0.0090, 0.063, 0.023	.;B;B;.;.;B;.;.
Vest4		0.37
MVP		0.36
MPC		0.44
ClinPred		0.023	T
GERP RS		4.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.15
gMVP		0.17

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: rs150399616; hg19: chr11-95551018; COSMIC: COSV99051099; COSMIC: COSV99051099;