chr16-81014146-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001100624.3(CENPN):ā€‹c.182C>Gā€‹(p.Ala61Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,022 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

CENPN
NM_001100624.3 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.92
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]
CMC2 (HGNC:24447): (C-X9-C motif containing 2) Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CENPNNM_001100624.3 linkuse as main transcriptc.182C>G p.Ala61Gly missense_variant 3/11 ENST00000305850.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CENPNENST00000305850.10 linkuse as main transcriptc.182C>G p.Ala61Gly missense_variant 3/111 NM_001100624.3 P1Q96H22-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251276
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135828
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000868
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1460850
Hom.:
0
Cov.:
29
AF XY:
0.00000413
AC XY:
3
AN XY:
726820
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152172
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
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:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsApr 24, 2024The c.182C>G (p.A61G) alteration is located in exon 3 (coding exon 2) of the CENPN gene. This alteration results from a C to G substitution at nucleotide position 182, causing the alanine (A) at amino acid position 61 to be replaced by a glycine (G). 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
0.22
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.037
T;.;.;.;.;T
Eigen
Benign
0.17
Eigen_PC
Benign
0.056
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.79
T;T;T;T;T;T
M_CAP
Benign
0.020
T
MetaRNN
Uncertain
0.53
D;D;D;D;D;D
MetaSVM
Benign
-0.74
T
MutationAssessor
Uncertain
2.6
M;M;M;M;M;.
MutationTaster
Benign
0.80
D;D;D;D;D;D
PrimateAI
Benign
0.31
T
PROVEAN
Uncertain
-3.0
D;D;D;D;D;D
REVEL
Benign
0.28
Sift
Uncertain
0.019
D;T;D;D;T;T
Sift4G
Benign
0.19
T;T;T;T;T;T
Polyphen
0.91
P;D;.;.;.;.
Vest4
0.30
MutPred
0.59
Gain of relative solvent accessibility (P = 0.0098);Gain of relative solvent accessibility (P = 0.0098);Gain of relative solvent accessibility (P = 0.0098);Gain of relative solvent accessibility (P = 0.0098);Gain of relative solvent accessibility (P = 0.0098);Gain of relative solvent accessibility (P = 0.0098);
MVP
0.30
MPC
0.063
ClinPred
0.71
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.39
gMVP
0.35

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs769101079; hg19: chr16-81047751; API