12-70278266-A-C

Position:

• chr12-70278266-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_014515.7(CNOT2):​c.40A>C​(p.Asn14His) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,170 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: CNOT2 NM_014515.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.50

Genes affected

CNOT2 (HGNC:7878): (CCR4-NOT transcription complex subunit 2) This gene encodes a subunit of the multi-component CCR4-NOT complex. The CCR4-NOT complex regulates mRNA synthesis and degradation and is also thought to be involved in mRNA splicing, transport and localization. The encoded protein interacts with histone deacetylases and functions as a repressor of polymerase II transcription. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, Dec 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.28455082).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CNOT2	NM_014515.7	c.40A>C	p.Asn14His	missense_variant	2/16	ENST00000229195.8	NP_055330.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CNOT2	ENST00000229195.8	c.40A>C	p.Asn14His	missense_variant	2/16	1	NM_014515.7	ENSP00000229195.3

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152170 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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

GnomAD4 exome Cov.: 28

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152170 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74344

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000655

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

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

CNOT2-related disorder Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 26, 2023

The CNOT2 c.40A>C variant is predicted to result in the amino acid substitution p.Asn14His. To our knowledge, this variant has not been reported in the literature or in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.051	T
BayesDel_noAF	Benign	-0.31
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.054	.;T;T;T;T;.;T;T;T
Eigen	Uncertain	0.33
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.72	T;T;T;.;T;T;T;.;T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.28	T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.0	.;N;.;N;.;.;.;N;.
PrimateAI	Pathogenic	0.88	D
PROVEAN	Benign	-0.91	N;N;D;N;N;N;N;N;N
REVEL	Benign	0.11
Sift	Uncertain	0.013	D;D;.;D;D;D;D;D;D
Sift4G	Benign	0.17	T;T;.;T;D;D;T;T;T
Polyphen		0.94	.;P;.;P;.;.;.;P;.
Vest4		0.44
MutPred		0.25		Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);Gain of catalytic residue at V17 (P = 8e-04);
MVP		0.72
MPC		1.1
ClinPred		0.81	D
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.12
gMVP		0.62

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: rs1443243067; hg19: chr12-70672046;