2-200490199-G-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_152387.4(KCTD18):ā€‹c.1182C>Gā€‹(p.Pro394Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000417 in 1,614,058 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: š‘“ 0.0022 ( 3 hom., cov: 33)
Exomes š‘“: 0.00023 ( 6 hom. )

Consequence

KCTD18
NM_152387.4 synonymous

Scores

2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -1.08
Variant links:
Genes affected
KCTD18 (HGNC:26446): (potassium channel tetramerization domain containing 18) Predicted to be involved in protein homooligomerization. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 2-200490199-G-C is Benign according to our data. Variant chr2-200490199-G-C is described in ClinVar as [Benign]. Clinvar id is 3052716.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-1.08 with no splicing effect.
BS2
High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KCTD18NM_152387.4 linkuse as main transcriptc.1182C>G p.Pro394Pro synonymous_variant 7/7 ENST00000359878.8 NP_689600.2 Q6PI47-1
KCTD18NM_001321547.2 linkuse as main transcriptc.1182C>G p.Pro394Pro synonymous_variant 7/7 NP_001308476.1 Q6PI47-1A8K4A2
KCTD18NM_001321548.2 linkuse as main transcriptc.555C>G p.Pro185Pro synonymous_variant 7/7 NP_001308477.1
KCTD18NM_001321550.2 linkuse as main transcriptc.555C>G p.Pro185Pro synonymous_variant 7/7 NP_001308479.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KCTD18ENST00000359878.8 linkuse as main transcriptc.1182C>G p.Pro394Pro synonymous_variant 7/71 NM_152387.4 ENSP00000352941.3 Q6PI47-1
KCTD18ENST00000409157.5 linkuse as main transcriptc.1182C>G p.Pro394Pro synonymous_variant 7/71 ENSP00000386751.1 Q6PI47-1

Frequencies

GnomAD3 genomes
AF:
0.00219
AC:
334
AN:
152270
Hom.:
3
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00776
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000633
AC:
159
AN:
251260
Hom.:
1
AF XY:
0.000493
AC XY:
67
AN XY:
135822
show subpopulations
Gnomad AFR exome
AF:
0.00899
Gnomad AMR exome
AF:
0.000347
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000229
AC:
335
AN:
1461670
Hom.:
6
Cov.:
29
AF XY:
0.000208
AC XY:
151
AN XY:
727104
show subpopulations
Gnomad4 AFR exome
AF:
0.00816
Gnomad4 AMR exome
AF:
0.000291
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.000629
GnomAD4 genome
AF:
0.00222
AC:
338
AN:
152388
Hom.:
3
Cov.:
33
AF XY:
0.00228
AC XY:
170
AN XY:
74524
show subpopulations
Gnomad4 AFR
AF:
0.00784
Gnomad4 AMR
AF:
0.000588
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000428
Hom.:
0
Bravo
AF:
0.00250
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

KCTD18-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 08, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
1.5
DANN
Benign
0.52

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs142017026; hg19: chr2-201354922; COSMIC: COSV63345167; COSMIC: COSV63345167; API