Genetic Variant KCTD4:p.Arg171His (chr13-45194056-C-T) – 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_198404.3(KCTD4):c.512G>A(p.Arg171His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,461,808 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R171C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

KCTD4
NM_198404.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.57

Publications

1 publications found

Variant links:

Genes affected

KCTD4 (HGNC:23227): (potassium channel tetramerization domain containing 4) Predicted to be involved in protein homooligomerization. [provided by Alliance of Genome Resources, Apr 2022]

KCTD4 links:

GTF2F2 (HGNC:4653): (general transcription factor IIF subunit 2) Predicted to enable RNA polymerase II general transcription initiation factor activity. Involved in transcription by RNA polymerase II. Located in microtubule cytoskeleton and nucleoplasm. Part of transcription preinitiation complex. [provided by Alliance of Genome Resources, Apr 2022]

GTF2F2 links:

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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_198404.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KCTD4	NM_198404.3	MANE Select	c.512G>A	p.Arg171His	missense	Exon 2 of 2	NP_940686.2	Q8WVF5
	GTF2F2	NM_004128.3	MANE Select	c.305-13368C>T		intron	N/A	NP_004119.1	P13984

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KCTD4	ENST00000379108.2	TSL:6 MANE Select	c.512G>A	p.Arg171His	missense	Exon 2 of 2	ENSP00000368402.1	Q8WVF5
GTF2F2	ENST00000340473.8	TSL:1 MANE Select	c.305-13368C>T		intron	N/A	ENSP00000340823.6	P13984
GTF2F2	ENST00000883031.1		c.382+10578C>T		intron	N/A	ENSP00000553090.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000797

AC:

AN:

250848

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000150

AC:

AN:

1461808

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727214

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53386

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000144

AC:

AN:

1111980

Other (OTH)

AF:

0.0000662

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000312

Hom.:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

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

AlphaMissense

Pathogenic

0.64

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.030

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.055

Eigen

Pathogenic

0.70

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.020

MetaRNN

Uncertain

0.66

MetaSVM

Benign

-0.64

MutationAssessor

Benign

0.0

PhyloP100

7.6

PrimateAI

Uncertain

0.79

PROVEAN

Benign

-0.91

REVEL

Uncertain

0.34

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.56

MutPred

0.55

Gain of catalytic residue at K169 (P = 0)

MVP

0.92

ClinPred

0.94

GERP RS

5.9

Varity_R

0.48

gMVP

0.86

Mutation Taster

=21/79

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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