Genetic Variant STK11:p.Pro324Arg (chr19-1223035-C-G) – ACMG Classification: Uncertain_significance (5 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1PM2PP3

The NM_000455.5(STK11):c.971C>G(p.Pro324Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P324A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Consequence

STK11
NM_000455.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 7.42

Publications

16 publications found

Variant links:

COSMIC-nc: COSV58827359

Genes affected

STK11 (HGNC:11389): (serine/threonine kinase 11) The protein encoded by this gene is a serine/threonine kinase that regulates cell polarity and energy metabolism and functions as a tumor suppressor. Mutations in this gene have been associated with the autosomal dominant Peutz-Jeghers syndrome, as well as with skin, pancreatic, and testicular cancers. [provided by RefSeq, May 2022]

STK11 Gene-Disease associations (from GenCC):

familial pancreatic carcinoma
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
Peutz-Jeghers syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, Genomics England PanelApp, G2P
familial ovarian cancer
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

STK11 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 7 benign, 37 uncertain in NM_000455.5

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.799

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000455.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
STK11	NM_000455.5	MANE Select	c.971C>G	p.Pro324Arg	missense	Exon 8 of 10	NP_000446.1
STK11	NM_001407255.1		c.971C>G	p.Pro324Arg	missense	Exon 8 of 9	NP_001394184.1
STK11	NR_176325.1		n.2238C>G		non_coding_transcript_exon	Exon 9 of 11

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
STK11	ENST00000326873.12	TSL:1 MANE Select	c.971C>G	p.Pro324Arg	missense	Exon 8 of 10	ENSP00000324856.6
STK11	ENST00000652231.1		c.971C>G	p.Pro324Arg	missense	Exon 8 of 9	ENSP00000498804.1
STK11	ENST00000585748.3	TSL:3	c.599C>G	p.Pro200Arg	missense	Exon 10 of 12	ENSP00000477641.2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Peutz-Jeghers syndrome (2)

Hereditary cancer-predisposing syndrome (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Uncertain

0.079

BayesDel_noAF

Benign

-0.12

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.36

Eigen

Uncertain

0.31

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.92

M_CAP

Pathogenic

0.39

MetaRNN

Pathogenic

0.80

MetaSVM

Uncertain

0.41

MutationAssessor

Benign

2.0

PhyloP100

7.4

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-3.8

REVEL

Uncertain

0.50

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0060

Polyphen

0.97

Vest4

0.61

MutPred

0.32

Loss of helix (P = 0.0068)

MVP

0.71

MPC

0.26

ClinPred

0.99

GERP RS

3.8

PromoterAI

-0.030

Neutral

(source)

Varity_R

0.59

gMVP

0.48

Mutation Taster

=70/30

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over