Genetic Variant KLF6:p.Ser142Tyr (chr10-3781892-G-T) – ACMG Classification: Uncertain_significance (5 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1PM2PP2

The NM_001300.6(KLF6):c.425C>A(p.Ser142Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

KLF6
NM_001300.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.61

Publications

1 publications found

Variant links:

Genes affected

KLF6 (HGNC:2235): (KLF transcription factor 6) This gene encodes a member of the Kruppel-like family of transcription factors. The zinc finger protein is a transcriptional activator, and functions as a tumor suppressor. Multiple transcript variants encoding different isoforms have been found for this gene, some of which are implicated in carcinogenesis. [provided by RefSeq, May 2009]

KLF6 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM1

In a chain Krueppel-like factor 6 (size 282) in uniprot entity KLF6_HUMAN there are 5 pathogenic changes around while only 1 benign (83%) in NM_001300.6

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 5 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 1.8535 (below the threshold of 3.09). Trascript score misZ: 2.6969 (below the threshold of 3.09).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KLF6	NM_001300.6 link	c.425C>A	p.Ser142Tyr	missense_variant	Exon 2 of 4	ENST00000497571.6	NP_001291.3	Q99612-1
KLF6	NM_001160124.2 link	c.425C>A	p.Ser142Tyr	missense_variant	Exon 2 of 4		NP_001153596.1	Q99612D3GC14
KLF6	NM_001160125.2 link	c.425C>A	p.Ser142Tyr	missense_variant	Exon 2 of 3		NP_001153597.1	Q99612-3
KLF6	NR_027653.2 link	n.620C>A		non_coding_transcript_exon_variant	Exon 2 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KLF6	ENST00000497571.6 link	c.425C>A	p.Ser142Tyr	missense_variant	Exon 2 of 4	1	NM_001300.6	ENSP00000419923.1		Q99612-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112012

Other (OTH)

AF:

0.0000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 18, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.425C>A (p.S142Y) alteration is located in exon 2 (coding exon 2) of the KLF6 gene. This alteration results from a C to A substitution at nucleotide position 425, causing the serine (S) at amino acid position 142 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.0055

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.83

D;.;.

Eigen

Uncertain

0.43

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Benign

0.50

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Benign

0.045

MetaRNN

Uncertain

0.48

T;T;T

MetaSVM

Benign

-0.39

MutationAssessor

Uncertain

2.6

M;M;M

PhyloP100

5.6

PrimateAI

Uncertain

0.55

PROVEAN

Uncertain

-2.8

D;D;D

REVEL

Benign

0.19

Sift

Uncertain

0.011

D;D;D

Sift4G

Uncertain

0.025

D;D;D

Polyphen

0.99

D;.;P

Vest4

0.49

MutPred

0.36

Gain of catalytic residue at S142 (P = 0.0054);Gain of catalytic residue at S142 (P = 0.0054);Gain of catalytic residue at S142 (P = 0.0054);

MVP

0.60

MPC

1.8

ClinPred

0.98

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.22

gMVP

0.38

Mutation Taster

=52/48

polymorphism

(source)

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

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10-3781892-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over