3-196803111-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_002577.4(PAK2):c.383A>C(p.Lys128Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000276 in 1,450,154 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: PAK2 NM_002577.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.00

Genes affected

PAK2 (HGNC:8591): (p21 (RAC1) activated kinase 2) The p21 activated kinases (PAK) are critical effectors that link Rho GTPases to cytoskeleton reorganization and nuclear signaling. The PAK proteins are a family of serine/threonine kinases that serve as targets for the small GTP binding proteins, CDC42 and RAC1, and have been implicated in a wide range of biological activities. The protein encoded by this gene is activated by proteolytic cleavage during caspase-mediated apoptosis, and may play a role in regulating the apoptotic events in the dying cell. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a modified_residue N6-acetyllysine (size 0) in uniprot entity PAK2_HUMAN
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PAK2	NM_002577.4	c.383A>C	p.Lys128Thr	missense_variant	4/15	ENST00000327134.7
PAK2	XM_011512870.3	c.383A>C	p.Lys128Thr	missense_variant	4/15
PAK2	XM_047448218.1	c.383A>C	p.Lys128Thr	missense_variant	4/15
PAK2	XM_047448219.1	c.383A>C	p.Lys128Thr	missense_variant	4/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PAK2	ENST00000327134.7	c.383A>C	p.Lys128Thr	missense_variant	4/15	2	NM_002577.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000276 AC: 4 AN: 1450154 Hom.: 0 Cov.: 30 AF XY: 0.00000139 AC XY: 1 AN XY: 720720

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: 0.00000362

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 11, 2021

The c.383A>C (p.K128T) alteration is located in exon 4 (coding exon 3) of the PAK2 gene. This alteration results from a A to C substitution at nucleotide position 383, causing the lysine (K) at amino acid position 128 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	Uncertain	0.35
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.070
Cadd	Uncertain	24
Dann	Uncertain	1.0
DEOGEN2	Uncertain	0.57	D
Eigen	Benign	0.0086
Eigen_PC	Benign	0.19
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.077	D
MetaRNN	Uncertain	0.65	D
MetaSVM	Uncertain	-0.22	T
MutationAssessor	Benign	1.8	L
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.84	D
PROVEAN	Uncertain	-2.7	D
REVEL	Uncertain	0.59
Sift	Benign	0.10	T
Sift4G	Benign	0.14	T
Polyphen		0.018	B
Vest4		0.74
MutPred		0.60		Loss of methylation at K128 (P = 0.0321);
MVP		0.91
MPC		0.96
ClinPred		0.82	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.62
gMVP		0.75

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-196529982;