Genetic Variant KNCN:p.Arg119Gln (chr1-46547749-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001322255.2(KNCN):c.356G>A(p.Arg119Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,483,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. 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. R119P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

KNCN
NM_001322255.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.93

Publications

0 publications found

Variant links:

Genes affected

KNCN (HGNC:26488): (kinocilin) Predicted to be located in apical part of cell; cytoplasm; and microtubule cytoskeleton. Predicted to be active in several cellular components, including apical plasma membrane; cytoskeleton; and kinocilium. [provided by Alliance of Genome Resources, Apr 2022]

KNCN links:

MKNK1-AS1 (HGNC:44129): (MKNK1 antisense RNA 1)

MKNK1-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08382398).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001322255.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KNCN	NM_001322255.2	MANE Select	c.356G>A	p.Arg119Gln	missense	Exon 4 of 4	NP_001309184.1	A6PVL3-1
KNCN	NM_001097611.1		c.287G>A	p.Arg96Gln	missense	Exon 3 of 3	NP_001091080.1	A6PVL3-2
MKNK1-AS1	NR_038403.1		n.254+3981C>T		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KNCN	ENST00000481882.7	TSL:5 MANE Select	c.356G>A	p.Arg119Gln	missense	Exon 4 of 4	ENSP00000419705.3	A6PVL3-1
KNCN	ENST00000294445.7	TSL:1	n.215G>A		non_coding_transcript_exon	Exon 3 of 3
KNCN	ENST00000396314.3	TSL:4	c.287G>A	p.Arg96Gln	missense	Exon 3 of 3	ENSP00000379607.3	A6PVL3-2

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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

GnomAD2 exomes

AF:

0.0000411

AC:

AN:

97238

AF XY:

0.0000820

show subpopulations

Gnomad AFR exome

AF:

0.000138

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000201

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000218

AC:

AN:

1331622

Hom.:

Cov.:

AF XY:

0.0000185

AC XY:

AN XY:

650274

show subpopulations

African (AFR)

AF:

0.000170

AC:

AN:

29412

American (AMR)

AF:

0.00

AC:

AN:

25022

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19992

East Asian (EAS)

AF:

0.000169

AC:

AN:

35590

South Asian (SAS)

AF:

0.0000751

AC:

AN:

66578

European-Finnish (FIN)

AF:

0.00

AC:

AN:

45762

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4704

European-Non Finnish (NFE)

AF:

0.0000114

AC:

AN:

1049586

Other (OTH)

AF:

0.0000182

AC:

AN:

54976

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

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

AF:

0.0000591

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74334

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41432

American (AMR)

AF:

0.0000654

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

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:

0.0000329

Hom.:

Bravo

AF:

0.0000340

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

Benign

0.090

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0094

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.74

M_CAP

Benign

0.0093

MetaRNN

Benign

0.084

MetaSVM

Benign

-1.0

PhyloP100

1.9

PrimateAI

Benign

0.29

PROVEAN

Benign

-1.4

REVEL

Benign

0.031

Sift

Benign

0.074

Sift4G

Pathogenic

0.0

Polyphen

0.057

Vest4

0.25

MutPred

0.14

Loss of MoRF binding (P = 0.0069)

MVP

0.014

MPC

0.10

ClinPred

0.046

GERP RS

2.8

Varity_R

0.038

gMVP

0.024

Mutation Taster

=99/1

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

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over