chr19-1220439-C-G

Position:

• chr19-1220439-C-G

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PM5 PP3_Moderate

The NM_000455.5(STK11):​c.531C>G​(p.Ile177Met) variant causes a missense change involving the alteration of a non-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. I177N) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: STK11 NM_000455.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.595

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 Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 13 uncertain in NM_000455.5
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr19-1220438-T-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376744.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.875

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
STK11	NM_000455.5	c.531C>G	p.Ile177Met	missense_variant	4/10	ENST00000326873.12
STK11	NM_001407255.1	c.531C>G	p.Ile177Met	missense_variant	4/9
STK11	NR_176325.1	n.1798C>G		non_coding_transcript_exon_variant	5/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STK11	ENST00000326873.12	c.531C>G	p.Ile177Met	missense_variant	4/10	1	NM_000455.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Pathogenic	0.32	D
BayesDel_noAF	Pathogenic	0.22
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.33	T;D;T
Eigen	Benign	0.094
Eigen_PC	Benign	-0.011
FATHMM_MKL	Benign	0.74	D
LIST_S2	Pathogenic	0.98	D;D;D
M_CAP	Pathogenic	0.40	D
MetaRNN	Pathogenic	0.87	D;D;D
MetaSVM	Uncertain	0.20	D
MutationAssessor	Uncertain	2.4	.;M;.
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-3.0	.;D;.
REVEL	Pathogenic	0.71
Sift	Uncertain	0.0010	.;D;.
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		1.0	.;D;.
Vest4		0.96
MutPred		0.79		Loss of methylation at K178 (P = 0.0253);Loss of methylation at K178 (P = 0.0253);.;
MVP		0.91
MPC		2.2
ClinPred		0.98	D
GERP RS		0.55
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.94
gMVP		0.87

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-1220438;