Genetic Variant STK11:p.Thr189Ile (chr19-1220474-C-T) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 2P and 9B. PM1BP6BS1BS2

The NM_000455.5(STK11):c.566C>T(p.Thr189Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000436 in 1,606,962 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T189N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

STK11
NM_000455.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:10B:4

Conservation

PhyloP100: 7.80

Publications

8 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: Benign. The variant received -7 ACMG points.

PM1

In a hotspot region, there are 12 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 26 uncertain in NM_000455.5

BP6

Variant 19-1220474-C-T is Benign according to our data. Variant chr19-1220474-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 141128.

BS1

Variant frequency is greater than expected in population eas. GnomAdExome4 allele frequency = 0.0000447 (65/1454744) while in subpopulation EAS AF = 0.000152 (6/39470). AF 95% confidence interval is 0.0000654. There are 0 homozygotes in GnomAdExome4. There are 29 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 5 AD gene.

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.566C>T	p.Thr189Ile	missense	Exon 4 of 10	NP_000446.1
STK11	NM_001407255.1		c.566C>T	p.Thr189Ile	missense	Exon 4 of 9	NP_001394184.1
STK11	NR_176325.1		n.1833C>T		non_coding_transcript_exon	Exon 5 of 11

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
STK11	ENST00000326873.12	TSL:1 MANE Select	c.566C>T	p.Thr189Ile	missense	Exon 4 of 10	ENSP00000324856.6
STK11	ENST00000652231.1		c.566C>T	p.Thr189Ile	missense	Exon 4 of 9	ENSP00000498804.1
STK11	ENST00000585748.3	TSL:3	c.194C>T	p.Thr65Ile	missense	Exon 6 of 12	ENSP00000477641.2

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000297

AC:

AN:

235888

AF XY:

0.0000234

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000577

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000470

Gnomad OTH exome

AF:

0.000173

GnomAD4 exome

AF:

0.0000447

AC:

AN:

1454744

Hom.:

Cov.:

AF XY:

0.0000401

AC XY:

AN XY:

723030

show subpopulations

African (AFR)

AF:

0.0000599

AC:

AN:

33390

American (AMR)

AF:

0.00

AC:

AN:

43950

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25962

East Asian (EAS)

AF:

0.000152

AC:

AN:

39470

South Asian (SAS)

AF:

0.00

AC:

AN:

85146

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51700

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.0000496

AC:

AN:

1109262

Other (OTH)

AF:

0.0000333

AC:

AN:

60110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

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

AF:

0.0000328

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74362

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41456

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000192

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000121

Hom.:

Bravo

AF:

0.0000302

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000499

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Peutz-Jeghers syndrome (6)

Hereditary cancer-predisposing syndrome (2)

not provided (2)

not specified (2)

Hereditary breast ovarian cancer syndrome (1)

Peutz-Jeghers syndrome;C0153594:Malignant tumor of testis;C0235974:Carcinoma of pancreas (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.099

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.23

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.30

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.90

M_CAP

Uncertain

0.15

MetaRNN

Uncertain

0.61

MetaSVM

Benign

-0.64

MutationAssessor

Benign

0.76

PhyloP100

7.8

PrimateAI

Pathogenic

0.82

PROVEAN

Uncertain

-4.0

REVEL

Pathogenic

0.75

Sift

Benign

0.072

Sift4G

Benign

0.21

Polyphen

0.56

Vest4

0.83

MVP

0.38

MPC

1.2

ClinPred

0.23

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.44

gMVP

0.81

Mutation Taster

=14/86

disease causing

(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

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over