Genetic Variant CERCAM:p.Arg157Trp (chr9-128424180-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_016174.5(CERCAM):c.469C>T(p.Arg157Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000223 in 1,614,052 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 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

CERCAM
NM_016174.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.501

Variant links:

Genes affected

CERCAM (HGNC:23723): (cerebral endothelial cell adhesion molecule) Enables identical protein binding activity. Acts upstream of or within cell adhesion. Predicted to be located in endoplasmic reticulum lumen. [provided by Alliance of Genome Resources, Apr 2022]

CERCAM links:

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 rank	MANE	Protein	UniProt
CERCAM	NM_016174.5 link	c.469C>T	p.Arg157Trp	missense_variant	Exon 4 of 13	ENST00000372838.9	NP_057258.3	Q5T4B2-1
CERCAM	NM_001286760.1 link	c.235C>T	p.Arg79Trp	missense_variant	Exon 4 of 13		NP_001273689.1	Q5T4B2-2
CERCAM	XM_011518763.4 link	c.235C>T	p.Arg79Trp	missense_variant	Exon 4 of 13		XP_011517065.1	Q5T4B2-2
CERCAM	XM_047423450.1 link	c.235C>T	p.Arg79Trp	missense_variant	Exon 5 of 14		XP_047279406.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CERCAM	ENST00000372838.9 link	c.469C>T	p.Arg157Trp	missense_variant	Exon 4 of 13	1	NM_016174.5	ENSP00000361929.4		Q5T4B2-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000716

AC:

AN:

251408

Hom.:

AF XY:

0.0000662

AC XY:

AN XY:

135874

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000199

Gnomad EAS exome

AF:

0.000652

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.000327

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000989

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 23, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.469C>T (p.R157W) alteration is located in exon 4 (coding exon 4) of the CERCAM gene. This alteration results from a C to T substitution at nucleotide position 469, causing the arginine (R) at amino acid position 157 to be replaced by a tryptophan (W). 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

0.11

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.041

.;T;.;T;.;T

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.050

LIST_S2

Benign

0.75

T;T;T;T;D;T

M_CAP

Benign

0.0072

MetaRNN

Benign

0.042

T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.90

.;.;.;L;.;.

PrimateAI

Benign

0.21

PROVEAN

Uncertain

-2.5

D;N;D;D;N;.

REVEL

Benign

0.11

Sift

Benign

0.13

T;T;T;T;D;.

Sift4G

Benign

0.070

T;D;T;T;D;T

Polyphen

0.022

.;.;.;B;.;.

Vest4

0.26

MutPred

0.51

.;.;.;Gain of catalytic residue at M160 (P = 0.0086);.;.;

MVP

0.19

MPC

0.50

ClinPred

0.066

GERP RS

-4.2

Varity_R

0.057

gMVP

0.67

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.22

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.22

Position offset: 18

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