Variant 16-81024748-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001100624.3(CENPN):c.667C>A(p.Gln223Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,458,558 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q223R) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CENPN
NM_001100624.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.27

Variant links:

Genes affected

CENPN (HGNC:30873): (centromere protein N) The protein encoded by this gene forms part of the nucleosome-associated complex and is important for kinetochore assembly. It is bound to kinetochores during S phase and G2 and recruits other proteins to the centromere. Pseudogenes of this gene are located on chromosome 2. Alternative splicing results in multiple transcript variants that encode different protein isoforms. [provided by RefSeq, Jul 2012]

CENPN links:

CENPN-AS1 (HGNC:55106): (CENPN antisense RNA 1)

CENPN-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17610332).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CENPN	NM_001100624.3 linkuse as main transcript	c.667C>A	p.Gln223Lys	missense_variant	8/11	ENST00000305850.10	NP_001094094.2
CENPN-AS1	XR_007065136.1 linkuse as main transcript	n.283-143G>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CENPN	ENST00000305850.10 linkuse as main transcript	c.667C>A	p.Gln223Lys	missense_variant	8/11	1	NM_001100624.3	ENSP00000305608	P1	Q96H22-1
CENPN-AS1	ENST00000649061.1 linkuse as main transcript	n.240-143G>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000403

AC:

AN:

248058

Hom.:

AF XY:

0.00000743

AC XY:

AN XY:

134526

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1458558

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

725624

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000541

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000624

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 02, 2022

The c.667C>A (p.Q223K) alteration is located in exon 8 (coding exon 7) of the CENPN gene. This alteration results from a C to A substitution at nucleotide position 667, causing the glutamine (Q) at amino acid position 223 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.078

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Benign

0.93

DEOGEN2

Benign

0.019

T;.;.;.

Eigen

Benign

-0.14

Eigen_PC

Benign

-0.15

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.85

T;T;T;T

M_CAP

Benign

0.0066

MetaRNN

Benign

0.18

T;T;T;T

MetaSVM

Benign

-0.95

MutationAssessor

Uncertain

2.5

M;.;M;.

MutationTaster

Benign

0.81

D;D;D;N

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.6

N;N;N;N

REVEL

Benign

0.030

Sift

Benign

0.062

T;T;T;T

Sift4G

Benign

0.19

T;T;T;T

Polyphen

0.44

B;.;.;.

Vest4

0.40

MutPred

0.41

Gain of ubiquitination at Q223 (P = 0.0045);.;Gain of ubiquitination at Q223 (P = 0.0045);.;

MVP

0.38

MPC

0.031

ClinPred

0.40

GERP RS

4.5

Varity_R

0.17

gMVP

0.39

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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