Genetic Variant CEND1:p.Thr91Asn (chr11-788305-G-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_016564.4(CEND1):c.272C>A(p.Thr91Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,612,316 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

CEND1
NM_016564.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.53

Variant links:

Genes affected

CEND1 (HGNC:24153): (cell cycle exit and neuronal differentiation 1) The protein encoded by this gene is a neuron-specific protein. The similar protein in pig enhances neuroblastoma cell differentiation in vitro and may be involved in neuronal differentiation in vivo. Multiple pseudogenes have been reported for this gene. [provided by RefSeq, Jul 2008]

CEND1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06458306).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEND1	NM_016564.4 link	c.272C>A	p.Thr91Asn	missense_variant	Exon 2 of 2	ENST00000330106.5	NP_057648.2	Q8N111

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEND1	ENST00000330106.5 link	c.272C>A	p.Thr91Asn	missense_variant	Exon 2 of 2	1	NM_016564.4	ENSP00000328336.4		Q8N111
CEND1	ENST00000524587.1 link	n.345C>A		non_coding_transcript_exon_variant	Exon 2 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.00143

GnomAD3 exomes

AF:

0.00000808

AC:

AN:

247572

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134546

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000547

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.0000171

AC:

AN:

1460086

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

726284

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.000348

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

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:

0.00143

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000165

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 specified

Uncertain:1

Oct 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.272C>A (p.T91N) alteration is located in exon 2 (coding exon 1) of the CEND1 gene. This alteration results from a C to A substitution at nucleotide position 272, causing the threonine (T) at amino acid position 91 to be replaced by an asparagine (N). 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

0.13

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.68

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.30

Eigen

Benign

-0.98

Eigen_PC

Benign

-0.96

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.51

M_CAP

Benign

0.0090

MetaRNN

Benign

0.065

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.3

PrimateAI

Uncertain

0.63

PROVEAN

Benign

-1.6

REVEL

Benign

0.057

Sift

Benign

0.058

Sift4G

Benign

0.21

Polyphen

0.015

Vest4

0.095

MutPred

0.24

Loss of glycosylation at T91 (P = 7e-04);

MVP

0.043

MPC

0.59

ClinPred

0.058

GERP RS

2.6

Varity_R

0.067

gMVP

0.083

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