9-107487424-C-A

Position:

• chr9-107487424-C-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_004235.6(KLF4):​c.970G>T​(p.Val324Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000146 in 1,367,530 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000015 (0 hom.)
• Consequence: KLF4 NM_004235.6 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.985

Genes affected

KLF4 (HGNC:6348): (KLF transcription factor 4) This gene encodes a protein that belongs to the Kruppel family of transcription factors. The encoded zinc finger protein is required for normal development of the barrier function of skin. The encoded protein is thought to control the G1-to-S transition of the cell cycle following DNA damage by mediating the tumor suppressor gene p53. Mice lacking this gene have a normal appearance but lose weight rapidly, and die shortly after birth due to fluid evaporation resulting from compromised epidermal barrier function. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Sep 2015]

KLF4 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.032904804).
• BP6: Variant 9-107487424-C-A is Benign according to our data. Variant chr9-107487424-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 2558069.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KLF4	NM_004235.6	c.970G>T	p.Val324Leu	missense_variant	3/5	ENST00000374672.5	NP_004226.3
KLF4	NM_001314052.2	c.970G>T	p.Val324Leu	missense_variant	3/4		NP_001300981.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KLF4	ENST00000374672.5	c.970G>T	p.Val324Leu	missense_variant	3/5	1	NM_004235.6	ENSP00000363804.4
KLF4	ENST00000493306.1	n.1235G>T		non_coding_transcript_exon_variant	3/4	1
KLF4	ENST00000610832.1	c.100-234G>T		intron_variant		5		ENSP00000483629.1
KLF4	ENST00000497048.5	n.1024G>T		non_coding_transcript_exon_variant	1/3	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000146 AC: 2 AN: 1367530 Hom.: 0 Cov.: 32 AF XY: 0.00000149 AC XY: 1 AN XY: 670682

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: 9.36e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 06, 2023

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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.74
CADD	Benign	16
DANN	Benign	0.76
Eigen	Benign	-0.94
Eigen_PC	Benign	-0.76
FATHMM_MKL	Benign	0.74	D
LIST_S2	Benign	0.57	T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.033	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	-1.9	N
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	0.70	N
REVEL	Benign	0.047
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.0	B
Vest4		0.022
MutPred		0.18		Gain of catalytic residue at V324 (P = 0.0828);
MVP		0.12
MPC		0.23
ClinPred		0.030	T
GERP RS		1.8
gMVP		0.14

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: chr9-110249705;