22-37062565-C-A

Position:

• chr22-37062565-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001282684.2(KCTD17):​c.916C>A​(p.His306Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: KCTD17 NM_001282684.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.10

Genes affected

KCTD17 (HGNC:25705): (potassium channel tetramerization domain containing 17) This gene encodes a protein that belongs to a conserved family of potassium channel tetramerization domain (KCTD)-containing proteins. The encoded protein functions in ciliogenesis by acting as a substrate adaptor for the cullin3-based ubiquitin-conjugating enzyme E3 ligase, and targets trichoplein, a keratin-binding protein, for degradation via polyubiquitinylation. A mutation in this gene is associated with autosomal dominant myoclonic dystonia 26. [provided by RefSeq, Nov 2016]

KCTD17 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.08762717).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KCTD17	NM_001282684.2	c.916C>A	p.His306Asn	missense_variant	9/9	ENST00000403888.8	NP_001269613.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KCTD17	ENST00000403888.8	c.916C>A	p.His306Asn	missense_variant	9/9	1	NM_001282684.2	ENSP00000385096.4
KCTD17	ENST00000402077.8	c.844C>A	p.His282Asn	missense_variant	8/8	1		ENSP00000384391.4
KCTD17	ENST00000610767.5	c.*11C>A		3_prime_UTR_variant	6/6	3		ENSP00000480699.2
KCTD17	ENST00000456470.1	c.*87C>A		3_prime_UTR_variant	7/7	3		ENSP00000409638.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1461308 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 726906

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.093
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	23
DANN	Uncertain	0.97
DEOGEN2	Benign	0.0055	.;T
Eigen	Benign	-0.21
Eigen_PC	Benign	-0.074
FATHMM_MKL	Uncertain	0.78	D
LIST_S2	Benign	0.58	T;T
M_CAP	Benign	0.066	D
MetaRNN	Benign	0.088	T;T
MetaSVM	Benign	-0.96	T
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.70	N;N
REVEL	Benign	0.042
Sift	Uncertain	0.0050	D;D
Sift4G	Uncertain	0.015	D;D
Polyphen		0.065	B;B
Vest4		0.16
MutPred		0.19		.;Gain of loop (P = 0.069);
MVP		0.60
MPC		0.11
ClinPred		0.54	D
GERP RS		3.8
Varity_R		0.15
gMVP		0.26

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs146711968; hg19: chr22-37458605;