rs532889728

Positions:

• chr19-1220598-G-A
• chr19-1220598-G-C
• chr19-1220598-G-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP6_Very_Strong BS2

The ENST00000326873.12(STK11):​c.615G>A​(p.Ala205=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000339 in 1,591,442 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: 𝑓 0.000026 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000035 (0 hom.)
• Consequence: STK11 ENST00000326873.12 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:15
• Conservation: PhyloP100: -1.82

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 Benign. Variant got -12 ACMG points.

• BP6: Variant 19-1220598-G-A is Benign according to our data. Variant chr19-1220598-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 182882.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS2: High AC in GnomAdExome4 at 50 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STK11	NM_000455.5	c.615G>A	p.Ala205=	synonymous_variant	5/10	ENST00000326873.12	NP_000446.1
STK11	NM_001407255.1	c.615G>A	p.Ala205=	synonymous_variant	5/9		NP_001394184.1
STK11	NR_176325.1	n.1882G>A		non_coding_transcript_exon_variant	6/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
STK11	ENST00000326873.12	c.615G>A	p.Ala205=	synonymous_variant	5/10	1	NM_000455.5	ENSP00000324856	P1

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152124 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000441

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000284 AC: 6 AN: 211152 Hom.: 0 AF XY: 0.0000344 AC XY: 4 AN XY: 116114

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000325

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000129

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000325

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000347 AC: 50 AN: 1439318 Hom.: 0 Cov.: 32 AF XY: 0.0000420 AC XY: 30 AN XY: 713996

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000479

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000104

Gnomad4 SAS exome AF: 0.0000119

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000372

Gnomad4 OTH exome AF: 0.0000337

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152124 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74322

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000654

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000176 Hom.: 0

Bravo AF: 0.0000378

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:15

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Peutz-Jeghers syndrome Benign:7

Likely benign, criteria provided, single submitter	clinical testing	All of Us Research Program, National Institutes of Health	Dec 18, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Jul 15, 2021	- -
Likely benign, no assertion criteria provided	clinical testing	Department of Pathology and Laboratory Medicine, Sinai Health System	-	The STK11 p.Ala205= variant was identified in 1 of 14102 proband chromosomes (frequency: 0.00007) from individuals or families with breast cancer and was not identified in 22482 control chromosomes from healthy individuals (Momozawa, 2018). The variant was also identified in dbSNP (ID: rs532889728) as “With other allele”, ClinVar (classified as benign by GeneDx, as likely benign by Ambry Genetics and Counsyl, and as uncertain significance by Invitae and Color Genomics), LOVD 3.0 (classified as uncertain significance). The variant was identified in control databases in 10 of 238092 chromosomes at a frequency of 0.000042 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: Latino in 2 of 30902 chromosomes (freq: 0.000065), European Non-Finnish in 6 of 105662 chromosomes (freq: 0.000057), East Asian in 2 of 16486 chromosomes (freq: 0.0001), while the variant was not observed in the African, Other, Ashkenazi Jewish, European Finnish, and South Asian populations. The variant has been observed in our laboratory in a patient with pancreatic cancer with an alternate molecular basis for disease (ATM c.1A>G). In a study of STK11 variants this variant was observed to demonstrate IHC stain intensity comparable to wild type (Pelak, 2013). The p.Ala205= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. The variant occurs outside of the splicing consensus sequence and 3 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing; however, this information is not predictive enough to assume pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
Benign, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Apr 13, 2023	This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 27, 2017	This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Likely benign, criteria provided, single submitter	clinical testing	Counsyl	May 18, 2016	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -

not specified Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital	Aug 15, 2023	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 09, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Feb 22, 2020	- -

Hereditary cancer-predisposing syndrome Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Dec 16, 2019	- -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Mar 12, 2015	This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Likely benign, criteria provided, single submitter	clinical testing	Department of Molecular Diagnostics, Institute of Oncology Ljubljana	Jul 14, 2021	STK11:c.615G>A p.(Ala205=) variant was detected in 2 patients without Peutz-Jeghers phenotype. The variants is predicted to create a new acceptor splice site by in silico splicing tools. Functional RNA study has shown that the variant causes insignificant splicing aberration (PMID: 34439939). Therefore the variant was classified as likely benign (ACMG/AMP: BS3, BP5, PM2). -

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Quest Diagnostics Nichols Institute San Juan Capistrano

Nov 04, 2022

- -

Hereditary breast ovarian cancer syndrome Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen

Oct 20, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	16
DANN	Benign	0.84
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.67		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.67		Position offset: 2

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

Publications

LitVar

Other links and lift over

dbSNP: rs532889728; hg19: chr19-1220597;