Variant 11-77336238-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP2PP3_ModeratePP5_Moderate

The NM_002576.5(PAK1):c.1261C>T(p.Arg421Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,670 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PAK1
NM_002576.5 missense

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 6.44

Variant links:

Genes affected

PAK1 (HGNC:8590): (p21 (RAC1) activated kinase 1) This gene encodes a family member of serine/threonine p21-activating kinases, known as PAK proteins. These proteins are critical effectors that link RhoGTPases to cytoskeleton reorganization and nuclear signaling, and they serve as targets for the small GTP binding proteins Cdc42 and Rac. This specific family member regulates cell motility and morphology. Mutations in this gene have been associated with macrocephaly, seizures, and speech delay. Overexpression of this gene is also reported in many cancer types, and particularly in breast cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2020]

PAK1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PAK1. . Gene score misZ: 4.0036 (greater than the threshold 3.09). Trascript score misZ: 3.8133 (greater than threshold 3.09). The gene has 21 curated pathogenic missense variants (we use a threshold of 10). The gene has 3 curated benign missense variants. GenCC has associacion of the gene with intellectual developmental disorder with macrocephaly, seizures, and speech delay.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.921

PP5

Variant 11-77336238-G-A is Pathogenic according to our data. Variant chr11-77336238-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2606596.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PAK1	NM_002576.5 link	c.1261C>T	p.Arg421Trp	missense_variant	13/15	ENST00000356341.8	NP_002567.3	Q13153-1A0A024R5P0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PAK1	ENST00000356341.8 link	c.1261C>T	p.Arg421Trp	missense_variant	13/15	1	NM_002576.5	ENSP00000348696.4		Q13153-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461670

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727144

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000113

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 27, 2023

The c.1261C>T (p.R421W) alteration is located in exon 13 (coding exon 12) of the PAK1 gene. This alteration results from a C to T substitution at nucleotide position 1261, causing the arginine (R) at amino acid position 421 to be replaced by a tryptophan (W). This variant was not reported in population-based cohorts in the Genome Aggregation Database (gnomAD). This amino acid position is highly conserved in available vertebrate species. This missense alteration is located in a region that has a low rate of benign missense variation (Lek, 2016; Firth, 2009). The in silico prediction for this alteration is inconclusive. Based on the available evidence, this alteration is classified as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.24

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.35

T;T;.;T

Eigen

Uncertain

0.43

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

D;D;D;D

M_CAP

Uncertain

0.20

MetaRNN

Pathogenic

0.92

D;D;D;D

MetaSVM

Uncertain

-0.24

MutationAssessor

Uncertain

2.1

M;.;M;.

PrimateAI

Pathogenic

0.91

PROVEAN

Pathogenic

-7.6

D;D;D;D

REVEL

Pathogenic

0.70

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

1.0

D;D;D;D

Vest4

0.89

MutPred

0.80

Gain of catalytic residue at M424 (P = 0.0103);Gain of catalytic residue at M424 (P = 0.0103);Gain of catalytic residue at M424 (P = 0.0103);.;

MVP

0.89

MPC

2.5

ClinPred

1.0

GERP RS

5.1

Varity_R

0.95

gMVP

0.84

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