Genetic Variant CDC42EP5:p.Pro123Arg (chr19-54465180-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_145057.4(CDC42EP5):c.368C>G(p.Pro123Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000236 in 1,273,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000024 ( 0 hom. )

Consequence

CDC42EP5
NM_145057.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.49

Publications

0 publications found

Variant links:

Genes affected

CDC42EP5 (HGNC:17408): (CDC42 effector protein 5) Cell division control protein 42 (CDC42), a small Rho GTPase, regulates the formation of F-actin-containing structures through its interaction with the downstream effector proteins. The protein encoded by this gene is a member of the Borg (binder of Rho GTPases) family of CDC42 effector proteins. Borg family proteins contain a CRIB (Cdc42/Rac interactive-binding) domain. They bind to CDC42 and regulate its function negatively. The encoded protein may inhibit c-Jun N-terminal kinase (JNK) independently of CDC42 binding. The protein may also play a role in septin organization and inducing pseudopodia formation in fibroblasts [provided by RefSeq, Jul 2013]

CDC42EP5 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08255553).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDC42EP5	NM_145057.4 link	c.368C>G	p.Pro123Arg	missense_variant	Exon 3 of 3	ENST00000301200.3	NP_659494.2	Q6NZY7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDC42EP5	ENST00000301200.3 link	c.368C>G	p.Pro123Arg	missense_variant	Exon 3 of 3	1	NM_145057.4	ENSP00000301200.2		Q6NZY7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000236

AC:

AN:

1273068

Hom.:

Cov.:

AF XY:

0.00000160

AC XY:

AN XY:

625692

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

25380

American (AMR)

AF:

0.00

AC:

AN:

17206

Ashkenazi Jewish (ASJ)

AF:

0.000149

AC:

AN:

20160

East Asian (EAS)

AF:

0.00

AC:

AN:

28392

South Asian (SAS)

AF:

0.00

AC:

AN:

63402

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33308

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4686

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1028084

Other (OTH)

AF:

0.00

AC:

AN:

52450

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.023284), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.392

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 01, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.368C>G (p.P123R) alteration is located in exon 3 (coding exon 1) of the CDC42EP5 gene. This alteration results from a C to G substitution at nucleotide position 368, causing the proline (P) at amino acid position 123 to be replaced by an arginine (R). 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

0.072

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.59

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.028

Eigen

Benign

-0.88

Eigen_PC

Benign

-0.96

FATHMM_MKL

Benign

0.26

M_CAP

Benign

0.035

MetaRNN

Benign

0.083

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

PhyloP100

1.5

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-1.9

REVEL

Benign

0.032

Sift

Benign

0.062

Sift4G

Uncertain

0.059

Polyphen

0.28

Vest4

0.083

MutPred

0.13

Gain of solvent accessibility (P = 0.0216);

MVP

0.39

MPC

0.96

ClinPred

0.11

GERP RS

0.99

Varity_R

0.032

gMVP

0.11

Mutation Taster

=96/4

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over