19-1221240-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS2

The NM_000455.5(STK11):​c.762C>T​(p.Pro254Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,460,284 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 Likely benign (★★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

STK11
NM_000455.5 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -2.43
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 19-1221240-C-T is Benign according to our data. Variant chr19-1221240-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 527852.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
STK11NM_000455.5 linkuse as main transcriptc.762C>T p.Pro254Pro synonymous_variant 6/10 ENST00000326873.12 NP_000446.1 Q15831-1A0A0S2Z4D1
STK11NM_001407255.1 linkuse as main transcriptc.762C>T p.Pro254Pro synonymous_variant 6/9 NP_001394184.1
STK11NR_176325.1 linkuse as main transcriptn.2029C>T non_coding_transcript_exon_variant 7/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
STK11ENST00000326873.12 linkuse as main transcriptc.762C>T p.Pro254Pro synonymous_variant 6/101 NM_000455.5 ENSP00000324856.6 Q15831-1
STK11ENST00000652231.1 linkuse as main transcriptc.762C>T p.Pro254Pro synonymous_variant 6/9 ENSP00000498804.1 Q15831-2
STK11ENST00000585748.3 linkuse as main transcriptc.390C>T p.Pro130Pro synonymous_variant 8/123 ENSP00000477641.2 A0A087WT72

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1460284
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726414
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Peutz-Jeghers syndrome Benign:2
Likely benign, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthJul 10, 2023- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMar 01, 2023- -
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 12, 2024The c.762C>T variant (also known as p.P254P), located in coding exon 6 of the STK11 gene, results from a C to T substitution at nucleotide position 762. This nucleotide substitution does not change the proline at codon 254. This nucleotide position is not well conserved in available vertebrate species. In silico splice site analysis for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
3.1
DANN
Benign
0.94

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1555738623; hg19: chr19-1221239; COSMIC: COSV105228067; COSMIC: COSV105228067; API