Genetic Variant STK11:p.Met18Leu (chr19-1206965-A-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000455.5(STK11):c.52A>T(p.Met18Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000686 in 1,458,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M18I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

STK11
NM_000455.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.20

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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2286813).

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.52A>T	p.Met18Leu	missense	Exon 1 of 10	NP_000446.1
STK11	NM_001407255.1		c.52A>T	p.Met18Leu	missense	Exon 1 of 9	NP_001394184.1
STK11	NR_176325.1		n.1188A>T		non_coding_transcript_exon	Exon 1 of 11

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
STK11	ENST00000326873.12	TSL:1 MANE Select	c.52A>T	p.Met18Leu	missense	Exon 1 of 10	ENSP00000324856.6
STK11	ENST00000652231.1		c.52A>T	p.Met18Leu	missense	Exon 1 of 9	ENSP00000498804.1
STK11	ENST00000593219.6	TSL:3	n.52A>T		non_coding_transcript_exon	Exon 1 of 11	ENSP00000466610.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1458470

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725300

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33432

American (AMR)

AF:

0.00

AC:

AN:

44302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26010

East Asian (EAS)

AF:

0.00

AC:

AN:

39602

South Asian (SAS)

AF:

0.00

AC:

AN:

85616

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52844

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1110698

Other (OTH)

AF:

0.00

AC:

AN:

60208

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.097

BayesDel_addAF

Uncertain

0.013

BayesDel_noAF

Benign

-0.22

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.24

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.31

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.78

M_CAP

Benign

0.012

MetaRNN

Benign

0.23

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PhyloP100

6.2

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.31

REVEL

Benign

0.22

Sift

Benign

0.46

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.23

MutPred

0.45

Loss of catalytic residue at M22 (P = 0.0362)

MVP

0.52

MPC

0.92

ClinPred

0.74

GERP RS

2.9

PromoterAI

-0.013

Neutral

(source)

Varity_R

0.19

gMVP

0.29

Mutation Taster

=85/15

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over