Genetic Variant KLLN:c.-944_-935dupCAGGGCAGGG (chr10-87863421-C-CCCCTGCCCTG) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001126049.2(KLLN):c.-944_-935dupCAGGGCAGGG variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000108 in 370,652 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000046 ( 0 hom. )

Consequence

KLLN
NM_001126049.2 5_prime_UTR

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.159

Publications

1 publications found

Variant links:

Genes affected

KLLN (HGNC:37212): (killin, p53 regulated DNA replication inhibitor) The protein encoded by this intronless gene is found in the nucleus, where it can inhibit DNA synthesis and promote S phase arrest coupled to apoptosis. The expression of this DNA binding protein is upregulated by transcription factor p53. [provided by RefSeq, Dec 2012]

KLLN links:

PTEN (HGNC:9588): (phosphatase and tensin homolog) This gene was identified as a tumor suppressor that is mutated in a large number of cancers at high frequency. The protein encoded by this gene is a phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase. It contains a tensin like domain as well as a catalytic domain similar to that of the dual specificity protein tyrosine phosphatases. Unlike most of the protein tyrosine phosphatases, this protein preferentially dephosphorylates phosphoinositide substrates. It negatively regulates intracellular levels of phosphatidylinositol-3,4,5-trisphosphate in cells and functions as a tumor suppressor by negatively regulating AKT/PKB signaling pathway. The use of a non-canonical (CUG) upstream initiation site produces a longer isoform that initiates translation with a leucine, and is thought to be preferentially associated with the mitochondrial inner membrane. This longer isoform may help regulate energy metabolism in the mitochondria. A pseudogene of this gene is found on chromosome 9. Alternative splicing and the use of multiple translation start codons results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2015]

PTEN Gene-Disease associations (from GenCC):

Cowden syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
PTEN hamartoma tumor syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
macrocephaly-autism syndrome
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, Ambry Genetics
renal cell carcinoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
leiomyosarcoma
Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
activated PI3K-delta syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Bannayan-Riley-Ruvalcaba syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Cowden disease
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Lhermitte-Duclos disease
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Proteus-like syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
glioma susceptibility 2
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

PTEN links:

MLDHR (HGNC:55481):

MLDHR links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001126049.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
KLLN	NM_001126049.2	MANE Select	c.-944_-935dupCAGGGCAGGG	5_prime_UTR	Exon 1 of 1	NP_001119521.1	B2CW77
PTEN	NM_000314.8	MANE Select	c.-1049_-1048insCCCTGCCCTG	upstream_gene	N/A	NP_000305.3
PTEN	NM_001304717.5		c.-529_-528insCCCTGCCCTG	upstream_gene	N/A	NP_001291646.4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
KLLN	ENST00000445946.5	TSL:6 MANE Select	c.-944_-935dupCAGGGCAGGG	5_prime_UTR	Exon 1 of 1	ENSP00000392204.2	B2CW77
PTEN	ENST00000693560.1		c.-519_-510dupGCCCTGCCCT	5_prime_UTR	Exon 1 of 10	ENSP00000509861.1	A0A8I5KSF9
PTEN	ENST00000688308.1		c.-17+318_-17+327dupGCCCTGCCCT	intron	N/A	ENSP00000508752.1	P60484-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000458

AC:

AN:

218352

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

110980

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

6144

American (AMR)

AF:

0.00

AC:

AN:

6268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

8010

East Asian (EAS)

AF:

0.00

AC:

AN:

20720

South Asian (SAS)

AF:

0.00

AC:

AN:

1966

European-Finnish (FIN)

AF:

0.00

AC:

AN:

22318

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1150

European-Non Finnish (NFE)

AF:

0.00000726

AC:

AN:

137704

Other (OTH)

AF:

0.00

AC:

AN:

14072

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41578

American (AMR)

AF:

0.00

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68008

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.16

Splicing

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over