NM_000455.5:c.934A>C

Variant names:

• chr19-1222998-A-C
• rs1060499952
• NM_000455.5:c.934A>C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000455.5(STK11):​c.934A>C​(p.Lys312Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: STK11 NM_000455.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.96

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STK11	NM_000455.5	c.934A>C	p.Lys312Gln	missense_variant	Exon 8 of 10	ENST00000326873.12	NP_000446.1
STK11	NM_001407255.1	c.934A>C	p.Lys312Gln	missense_variant	Exon 8 of 9		NP_001394184.1
STK11	NR_176325.1	n.2201A>C		non_coding_transcript_exon_variant	Exon 9 of 11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STK11	ENST00000326873.12	c.934A>C	p.Lys312Gln	missense_variant	Exon 8 of 10	1	NM_000455.5	ENSP00000324856.6
STK11	ENST00000652231.1	c.934A>C	p.Lys312Gln	missense_variant	Exon 8 of 9			ENSP00000498804.1
STK11	ENST00000585748.3	c.562A>C	p.Lys188Gln	missense_variant	Exon 10 of 12	3		ENSP00000477641.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Peutz-Jeghers syndrome Uncertain:1

Sep 06, 2016

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, this variant is a novel missense change that is not predicted to affect protein function. There is no indication that it causes disease, but the available evidence is currently insufficient to prove that conclusively. Therefore, it has been classified as a Variant of Uncertain Significance. This sequence change replaces lysine with glutamine at codon 312 of the STK11 protein (p.Lys312Gln). The lysine residue is highly conserved and there is a small physicochemical difference between lysine and glutamine. This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a STK11-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.093	D
BayesDel_noAF	Benign	-0.10
CADD	Uncertain	24
DANN	Benign	0.96
DEOGEN2	Benign	0.31	T;T
Eigen	Benign	-0.099
Eigen_PC	Benign	-0.027
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Uncertain	0.92	D;D
M_CAP	Uncertain	0.13	D
MetaRNN	Uncertain	0.55	D;D
MetaSVM	Benign	-0.41	T
MutationAssessor	Benign	2.0	.;M
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-1.8	.;N
REVEL	Uncertain	0.41
Sift	Benign	0.15	.;T
Sift4G	Benign	0.21	T;T
Polyphen		0.068	.;B
Vest4		0.68
MutPred		0.31		Loss of methylation at K312 (P = 0.0062);Loss of methylation at K312 (P = 0.0062);
MVP		0.89
MPC		0.044
ClinPred		0.89	D
GERP RS		3.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.8
Varity_R		0.53
gMVP		0.62

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1060499952; hg19: chr19-1222997;