19-1223035-C-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_000455.5(STK11):c.971C>A(p.Pro324Gln) 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)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

STK11
NM_000455.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.42

Publications

0 publications found

Variant links:

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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 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

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STK11	NM_000455.5 link	c.971C>A	p.Pro324Gln	missense_variant	Exon 8 of 10	ENST00000326873.12	NP_000446.1	Q15831-1A0A0S2Z4D1
STK11	NM_001407255.1 link	c.971C>A	p.Pro324Gln	missense_variant	Exon 8 of 9		NP_001394184.1
STK11	NR_176325.1 link	n.2238C>A		non_coding_transcript_exon_variant	Exon 9 of 11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
STK11	ENST00000326873.12 link	c.971C>A	p.Pro324Gln	missense_variant	Exon 8 of 10	1	NM_000455.5	ENSP00000324856.6	Q15831-1
STK11	ENST00000652231.1 link	c.971C>A	p.Pro324Gln	missense_variant	Exon 8 of 9			ENSP00000498804.1	Q15831-2
STK11	ENST00000585748.3 link	c.599C>A	p.Pro200Gln	missense_variant	Exon 10 of 12	3		ENSP00000477641.2	A0A087WT72
STK11	ENST00000593219.6 link	n.*796C>A		non_coding_transcript_exon_variant	Exon 9 of 11	3		ENSP00000466610.1	K7EMR0
STK11	ENST00000593219.6 link	n.*796C>A		3_prime_UTR_variant	Exon 9 of 11	3		ENSP00000466610.1	K7EMR0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1441976

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

715560

African (AFR)

AF:

0.00

AC:

AN:

33064

American (AMR)

AF:

0.00

AC:

AN:

41980

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25692

East Asian (EAS)

AF:

0.00

AC:

AN:

38684

South Asian (SAS)

AF:

0.00

AC:

AN:

83322

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50684

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5740

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1103152

Other (OTH)

AF:

0.00

AC:

AN:

59658

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Peutz-Jeghers syndrome

Uncertain:1

Oct 03, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 324 of the STK11 protein (p.Pro324Gln). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with STK11-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on STK11 protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Uncertain

0.048

BayesDel_noAF

Benign

-0.17

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.35

T;D

Eigen

Uncertain

0.30

Eigen_PC

Benign

0.14

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.89

D;D

M_CAP

Pathogenic

0.37

MetaRNN

Pathogenic

0.79

D;D

MetaSVM

Uncertain

0.34

MutationAssessor

Benign

2.0

.;M

PhyloP100

7.4

PrimateAI

Uncertain

0.57

PROVEAN

Uncertain

-3.6

.;D

REVEL

Uncertain

0.50

Sift

Uncertain

0.0030

.;D

Sift4G

Uncertain

0.0080

D;D

Polyphen

0.97

.;D

Vest4

0.57

MutPred

0.35

Loss of helix (P = 0.0068);Loss of helix (P = 0.0068);

MVP

0.80

MPC

0.25

ClinPred

0.97

GERP RS

3.8

PromoterAI

0.0052

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.45

gMVP

0.49

Mutation Taster

=66/34

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.88

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.88

Position offset: 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