NM_000455.5:c.366G>C

Variant names:

• chr19-1218492-G-C
• rs376969448
• NM_000455.5:c.366G>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000455.5(STK11):​c.366G>C​(p.Lys122Asn) variant causes a missense change. 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. K122R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: STK11 NM_000455.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.14
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.85

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STK11	NM_000455.5	c.366G>C	p.Lys122Asn	missense_variant	Exon 2 of 10	ENST00000326873.12	NP_000446.1
STK11	NM_001407255.1	c.366G>C	p.Lys122Asn	missense_variant	Exon 2 of 9		NP_001394184.1
STK11	NR_176325.1	n.1633G>C		non_coding_transcript_exon_variant	Exon 3 of 11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STK11	ENST00000326873.12	c.366G>C	p.Lys122Asn	missense_variant	Exon 2 of 10	1	NM_000455.5	ENSP00000324856.6
STK11	ENST00000652231.1	c.366G>C	p.Lys122Asn	missense_variant	Exon 2 of 9			ENSP00000498804.1
STK11	ENST00000593219.6	n.*191G>C		non_coding_transcript_exon_variant	Exon 3 of 11	3		ENSP00000466610.1
STK11	ENST00000585748.3	c.-7G>C		5_prime_UTR_variant	Exon 4 of 12	3		ENSP00000477641.2
STK11	ENST00000593219.6	n.*191G>C		3_prime_UTR_variant	Exon 3 of 11	3		ENSP00000466610.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Uncertain	0.037	T
BayesDel_noAF	Benign	-0.19
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.32	T;D
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.92	D;D
M_CAP	Pathogenic	0.46	D
MetaRNN	Pathogenic	0.85	D;D
MetaSVM	Uncertain	0.47	D
MutationAssessor	Benign	-0.060	.;N
PhyloP100		4.1
PrimateAI	Pathogenic	0.89	D
PROVEAN	Pathogenic	-5.0	.;D
REVEL	Uncertain	0.54
Sift	Pathogenic	0.0	.;D
Sift4G	Benign	0.083	T;T
Polyphen		1.0	.;D
Vest4		0.80
MutPred		0.44		Loss of methylation at K122 (P = 6e-04);Loss of methylation at K122 (P = 6e-04);
MVP		0.87
MPC		2.3
ClinPred		0.99	D
GERP RS		4.1
Varity_R		0.94
gMVP		0.77
Mutation Taster		=29/71	disease causing

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

Other links and lift over

dbSNP: rs376969448; hg19: chr19-1218491;