Genetic Variant CERS2:p.Arg377Pro (chr1-150966161-C-G) – ACMG Classification: Benign (-8 pts)

Variant summary

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

The NM_022075.5(CERS2):c.1130G>C(p.Arg377Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000689 in 1,610,470 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000072 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000069 ( 0 hom. )

Consequence

CERS2
NM_022075.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.132

Variant links:

Genes affected

CERS2 (HGNC:14076): (ceramide synthase 2) This gene encodes a protein that has sequence similarity to yeast longevity assurance gene 1. Mutation or overexpression of the related gene in yeast has been shown to alter yeast lifespan. The human protein may play a role in the regulation of cell growth. Alternatively spliced transcript variants encoding the same protein have been described. [provided by RefSeq, Jul 2008]

CERS2 links:

ENSG00000259357 (HGNC:58295):

ENSG00000259357 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=0.05539593).

BS2

High AC in GnomAd4 at 11 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CERS2	NM_022075.5 link	c.1130G>C	p.Arg377Pro	missense_variant	Exon 11 of 11	ENST00000368954.10	NP_071358.1	Q96G23
CERS2	NM_181746.4 link	c.1130G>C	p.Arg377Pro	missense_variant	Exon 11 of 11		NP_859530.1	Q96G23
CERS2	XM_011509451.3 link	c.1190G>C	p.Arg397Pro	missense_variant	Exon 11 of 11		XP_011507753.1
CERS2	XM_011509452.4 link	c.1130G>C	p.Arg377Pro	missense_variant	Exon 11 of 11		XP_011507754.1	Q96G23

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CERS2	ENST00000368954.10 link	c.1130G>C	p.Arg377Pro	missense_variant	Exon 11 of 11	1	NM_022075.5	ENSP00000357950.5		Q96G23

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000485

AC:

AN:

247472

Hom.:

AF XY:

0.0000448

AC XY:

AN XY:

133984

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000302

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000999

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000622

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000686

AC:

100

AN:

1458350

Hom.:

Cov.:

AF XY:

0.0000593

AC XY:

AN XY:

725648

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000231

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000933

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000792

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152120

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74292

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000100

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 26, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1130G>C (p.R377P) alteration is located in exon 11 (coding exon 10) of the CERS2 gene. This alteration results from a G to C substitution at nucleotide position 1130, causing the arginine (R) at amino acid position 377 to be replaced by a proline (P). 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

-0.42

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Benign

0.78

DEOGEN2

Benign

0.11

T;T

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.40

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.64

T;.

M_CAP

Benign

0.0034

MetaRNN

Benign

0.055

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.4

L;L

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.44

N;N

REVEL

Benign

0.044

Sift

Benign

0.20

T;T

Sift4G

Benign

0.16

T;T

Polyphen

0.0

B;B

Vest4

0.14

MutPred

0.25

Loss of MoRF binding (P = 2e-04);Loss of MoRF binding (P = 2e-04);

MVP

0.10

MPC

0.84

ClinPred

0.078

GERP RS

-0.15

Varity_R

0.13

gMVP

0.40

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