Genetic Variant NM_032775.4:c.1699G>C (chr22-20442279-C-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_032775.4(KLHL22):c.1699G>C(p.Asp567His) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D567E) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

KLHL22
NM_032775.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.86

Publications

1 publications found

Variant links:

Genes affected

KLHL22 (HGNC:25888): (kelch like family member 22) Enables 14-3-3 protein binding activity. Involved in several processes, including cellular protein metabolic process; cellular response to leucine; and mitotic spindle assembly checkpoint signaling. Located in several cellular components, including cytosol; intercellular bridge; and microtubule cytoskeleton. Part of Cul3-RING ubiquitin ligase complex. Colocalizes with lysosome and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

KLHL22 links:

ENSG00000277971 (HGNC:):

ENSG00000277971 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.841

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032775.4. 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
	KLHL22	NM_032775.4	MANE Select	c.1699G>C	p.Asp567His	missense	Exon 7 of 7	NP_116164.2
	KLHL22	NR_033825.2		n.1602G>C		non_coding_transcript_exon	Exon 6 of 6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KLHL22	ENST00000328879.9	TSL:1 MANE Select	c.1699G>C	p.Asp567His	missense	Exon 7 of 7	ENSP00000331682.4	Q53GT1-1
ENSG00000277971	ENST00000429594.1	TSL:5	n.177+4164G>C		intron	N/A	ENSP00000392268.1	H7BZZ5
KLHL22	ENST00000871932.1		c.1699G>C	p.Asp567His	missense	Exon 7 of 7	ENSP00000541991.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000798

AC:

AN:

250644

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461578

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727098

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53194

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111976

Other (OTH)

AF:

0.00

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

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.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.40

BayesDel_addAF

Benign

-0.039

BayesDel_noAF

Uncertain

-0.070

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.74

Eigen

Benign

-0.0057

Eigen_PC

Benign

0.030

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.82

M_CAP

Uncertain

0.093

MetaRNN

Pathogenic

0.84

MetaSVM

Uncertain

0.30

MutationAssessor

Uncertain

2.4

PhyloP100

3.9

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-4.4

REVEL

Uncertain

0.47

Sift

Benign

0.036

Sift4G

Benign

0.13

Polyphen

0.12

Vest4

0.62

MutPred

0.77

Gain of MoRF binding (P = 0.1252)

MVP

0.72

MPC

0.86

ClinPred

0.50

GERP RS

5.7

Varity_R

0.32

gMVP

0.65

Mutation Taster

=71/29

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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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