14-20429040-C-G

Variant names:

• chr14-20429040-C-G
• rs891147302
• NM_001365790.2:c.2203G>C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_001365790.2(KLHL33):​c.2203G>C​(p.Gly735Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,210 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 nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: KLHL33 NM_001365790.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.94
• Publications: 1 publications found

Genes affected

KLHL33 (HGNC:31952): (kelch like family member 33)

ENSG00000291038 (HGNC:):

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.978

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001365790.2. 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
	KLHL33	NM_001365790.2	MANE Select	c.2203G>C	p.Gly735Arg	missense	Exon 5 of 5	NP_001352719.1	A0A1B0GUB7
	KLHL33	NM_001109997.3		c.1411G>C	p.Gly471Arg	missense	Exon 4 of 4	NP_001103467.2	A6NCF5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KLHL33	ENST00000636854.3	TSL:5 MANE Select	c.2203G>C	p.Gly735Arg	missense	Exon 5 of 5	ENSP00000490040.1	A0A1B0GUB7
	KLHL33	ENST00000344581.4	TSL:5	c.1411G>C	p.Gly471Arg	missense	Exon 4 of 4	ENSP00000341549.4	A6NCF5
	KLHL33	ENST00000637228.1	TSL:5	c.*362G>C		3_prime_UTR	Exon 4 of 4	ENSP00000489731.1	A0A1B0GTK0

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152210 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 37

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152210 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74362

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000241 AC: 1 AN: 41456

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5202

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68022

Other (OTH) AF: 0.00 AC: 0 AN: 2090

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Pathogenic	0.39	D
BayesDel_noAF	Pathogenic	0.33
CADD	Pathogenic	28
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.29	T
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.84	T
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Uncertain	0.32	D
MutationAssessor	Pathogenic	3.1	M
PhyloP100		5.9
PrimateAI	Pathogenic	0.81	D
PROVEAN	Pathogenic	-7.8	D
REVEL	Pathogenic	0.80
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.92
MutPred		0.94		Gain of methylation at G471 (P = 0.0722)
MVP		0.49
ClinPred		1.0	D
GERP RS		5.4
Varity_R		0.94
gMVP		0.89
Mutation Taster		=37/63	disease causing

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

Other links and lift over

dbSNP: rs891147302; hg19: chr14-20897199;