Genetic Variant PAK4:p.Arg5Thr (chr19-39169567-G-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_005884.5(PAK4):c.14G>C(p.Arg5Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,172 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: 31)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

PAK4
NM_005884.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.27

Variant links:

Genes affected

PAK4 (HGNC:16059): (p21 (RAC1) activated kinase 4) PAK proteins, a family of serine/threonine p21-activating kinases, include PAK1, PAK2, PAK3 and PAK4. PAK proteins are critical effectors that link Rho GTPases to cytoskeleton reorganization and nuclear signaling. They serve as targets for the small GTP binding proteins Cdc42 and Rac and have been implicated in a wide range of biological activities. PAK4 interacts specifically with the GTP-bound form of Cdc42Hs and weakly activates the JNK family of MAP kinases. PAK4 is a mediator of filopodia formation and may play a role in the reorganization of the actin cytoskeleton. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

PAK4 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22333789).

BS2

High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PAK4	NM_005884.5 link	c.14G>C	p.Arg5Thr	missense_variant	Exon 3 of 10	ENST00000360442.8	NP_005875.1	O96013-1A0A024R0J1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PAK4	ENST00000360442.8 link	c.14G>C	p.Arg5Thr	missense_variant	Exon 3 of 10	5	NM_005884.5	ENSP00000353625.3		O96013-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152102

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000400

AC:

AN:

249982

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135272

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000889

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461070

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726710

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152102

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74282

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 13, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.14G>C (p.R5T) alteration is located in exon 4 (coding exon 1) of the PAK4 gene. This alteration results from a G to C substitution at nucleotide position 14, causing the arginine (R) at amino acid position 5 to be replaced by a threonine (T). 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

Pathogenic

0.69

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.29

.;.;.;T;D;D;.;.;D

Eigen

Benign

-0.41

Eigen_PC

Benign

-0.37

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.91

D;.;D;T;.;.;D;T;D

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.22

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.70

MutationAssessor

Benign

1.1

.;L;L;.;L;L;L;.;L

PrimateAI

Uncertain

0.70

PROVEAN

Uncertain

-2.9

.;.;D;.;D;.;.;.;D

REVEL

Benign

0.18

Sift

Uncertain

0.0040

.;.;D;.;D;.;.;.;D

Sift4G

Uncertain

0.0080

D;T;D;D;D;D;T;D;D

Polyphen

0.027, 0.22, 0.0040

.;B;B;.;B;B;B;.;B

Vest4

0.31, 0.24, 0.23, 0.26, 0.25, 0.26

MutPred

0.23

.;Gain of phosphorylation at R5 (P = 0.0387);Gain of phosphorylation at R5 (P = 0.0387);Gain of phosphorylation at R5 (P = 0.0387);Gain of phosphorylation at R5 (P = 0.0387);Gain of phosphorylation at R5 (P = 0.0387);Gain of phosphorylation at R5 (P = 0.0387);Gain of phosphorylation at R5 (P = 0.0387);Gain of phosphorylation at R5 (P = 0.0387);

MVP

0.50

MPC

0.35

ClinPred

0.51

GERP RS

-0.15

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.8

Varity_R

0.88

gMVP

0.57

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