19-32879325-C-T

Position:

chr19-32879325-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_032816.5(CEP89):c.2189G>A(p.Arg730Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000496 in 1,614,126 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000049 ( 2 hom. )

Consequence

CEP89
NM_032816.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.347

Variant links:

Genes affected

CEP89 (HGNC:25907): (centrosomal protein 89) Involved in non-motile cilium assembly. Acts upstream of or within cilium assembly. Located in several cellular components, including cytosol; microtubule cytoskeleton; and non-motile cilium. Part of ciliary transition fiber. [provided by Alliance of Genome Resources, Apr 2022]

CEP89 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.031551093).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CEP89	NM_032816.5 linkuse as main transcript	c.2189G>A	p.Arg730Gln	missense_variant	19/19	ENST00000305768.10
CEP89	XM_005259344.4 linkuse as main transcript	c.2117G>A	p.Arg706Gln	missense_variant	19/19
CEP89	XM_047439562.1 linkuse as main transcript	c.1448G>A	p.Arg483Gln	missense_variant	13/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CEP89	ENST00000305768.10 linkuse as main transcript	c.2189G>A	p.Arg730Gln	missense_variant	19/19	1	NM_032816.5	P3	Q96ST8-1
CEP89	ENST00000586984.6 linkuse as main transcript	c.*798G>A		3_prime_UTR_variant, NMD_transcript_variant	18/18	1
CEP89	ENST00000591698.5 linkuse as main transcript	c.*1523G>A		3_prime_UTR_variant, NMD_transcript_variant	18/18	2

Frequencies

GnomAD3 genomes

AF:

0.0000525

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000716

AC:

AN:

251486

Hom.:

AF XY:

0.0000956

AC XY:

AN XY:

135914

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000490

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000493

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000605

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000452

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000279

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74384

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.0000576

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Dec 24, 2021

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. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant has not been reported in the literature in individuals affected with CEP89-related conditions. This variant is present in population databases (rs758657889, gnomAD 0.05%). This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 730 of the CEP89 protein (p.Arg730Gln). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.70

CADD

Benign

7.5

DANN

Benign

0.88

DEOGEN2

Benign

0.0039

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.014

LIST_S2

Benign

0.82

M_CAP

Benign

0.0035

MetaRNN

Benign

0.032

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.27

MutationTaster

Benign

1.0

PrimateAI

Benign

0.21

PROVEAN

Benign

-0.36

REVEL

Benign

0.054

Sift

Benign

0.55

Sift4G

Benign

0.42

Polyphen

0.18

Vest4

0.044

MutPred

0.21

Loss of MoRF binding (P = 0.0284);

MVP

0.072

MPC

0.12

ClinPred

0.018

GERP RS

-6.1

Varity_R

0.024

gMVP

0.055

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

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