19-1220466-C-A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP6

The NM_000455.5(STK11):c.558C>A(p.Thr186Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,454,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T186T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

STK11
NM_000455.5 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -0.462

Publications

1 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: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP6

Variant 19-1220466-C-A is Benign according to our data. Variant chr19-1220466-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 403770.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STK11	NM_000455.5 link	c.558C>A	p.Thr186Thr	synonymous_variant	Exon 4 of 10	ENST00000326873.12	NP_000446.1	Q15831-1A0A0S2Z4D1
STK11	NM_001407255.1 link	c.558C>A	p.Thr186Thr	synonymous_variant	Exon 4 of 9		NP_001394184.1
STK11	NR_176325.1 link	n.1825C>A		non_coding_transcript_exon_variant	Exon 5 of 11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
STK11	ENST00000326873.12 link	c.558C>A	p.Thr186Thr	synonymous_variant	Exon 4 of 10	1	NM_000455.5	ENSP00000324856.6	Q15831-1
STK11	ENST00000652231.1 link	c.558C>A	p.Thr186Thr	synonymous_variant	Exon 4 of 9			ENSP00000498804.1	Q15831-2
STK11	ENST00000585748.3 link	c.186C>A	p.Thr62Thr	synonymous_variant	Exon 6 of 12	3		ENSP00000477641.2	A0A087WT72
STK11	ENST00000593219.6 link	n.*383C>A		non_coding_transcript_exon_variant	Exon 5 of 11	3		ENSP00000466610.1	K7EMR0
STK11	ENST00000593219.6 link	n.*383C>A		3_prime_UTR_variant	Exon 5 of 11	3		ENSP00000466610.1	K7EMR0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000170

AC:

AN:

235958

AF XY:

0.0000234

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000103

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000282

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1454680

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723016

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33386

American (AMR)

AF:

0.00

AC:

AN:

43928

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25956

East Asian (EAS)

AF:

0.00

AC:

AN:

39446

South Asian (SAS)

AF:

0.00

AC:

AN:

85132

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51724

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1109216

Other (OTH)

AF:

0.00

AC:

AN:

60140

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

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

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Peutz-Jeghers syndrome

Uncertain:1Benign:1

Mar 26, 2025

Myriad Genetics, Inc.

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -

Aug 27, 2016

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In summary, this is a rare silent change with uncertain impact on splicing. It has been classified as a Variant of Uncertain Significance. This variant is present in population databases (rs749563734, ExAC 0.007%) but has not been reported in the literature in individuals with a STK11-related disease. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may alter RNA splicing, but this prediction has not been confirmed by published transcriptional studies. This sequence change affects codon 186¬†of the STK11 mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the STK11 protein. -

Hereditary cancer-predisposing syndrome

Benign:1

Jan 14, 2025

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.66

CADD

Benign

3.5

(source)

DANN

Benign

0.65

PhyloP100

-0.46

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.34

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.34

Position offset: 1

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over