Genetic Variant NM_000455.5:c.721G>C (chr19-1220704-G-C) – ACMG Classification: Likely_pathogenic (8 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The NM_000455.5(STK11):c.721G>C(p.Ala241Pro) 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A241S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

STK11
NM_000455.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.85

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:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM1

In a hotspot region, there are 10 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 24 uncertain in NM_000455.5

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.939

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.721G>C	p.Ala241Pro	missense	Exon 5 of 10	NP_000446.1
STK11	NM_001407255.1		c.721G>C	p.Ala241Pro	missense	Exon 5 of 9	NP_001394184.1
STK11	NR_176325.1		n.1988G>C		non_coding_transcript_exon	Exon 6 of 11

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
STK11	ENST00000326873.12	TSL:1 MANE Select	c.721G>C	p.Ala241Pro	missense	Exon 5 of 10	ENSP00000324856.6
STK11	ENST00000652231.1		c.721G>C	p.Ala241Pro	missense	Exon 5 of 9	ENSP00000498804.1
STK11	ENST00000585748.3	TSL:3	c.349G>C	p.Ala117Pro	missense	Exon 7 of 12	ENSP00000477641.2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.30

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.96

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.94

MetaSVM

Uncertain

0.65

MutationAssessor

Uncertain

2.2

PhyloP100

7.9

PrimateAI

Pathogenic

0.92

PROVEAN

Uncertain

-2.7

REVEL

Pathogenic

0.78

Sift

Uncertain

0.011

Sift4G

Uncertain

0.033

Polyphen

1.0

Vest4

0.96

MutPred

0.68

Loss of catalytic residue at A241 (P = 0.0055)

MVP

0.85

MPC

2.4

ClinPred

0.96

GERP RS

5.6

Varity_R

0.98

gMVP

0.99

Mutation Taster

=7/93

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over