rs186659284

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001329943.3(KIAA0586):​c.100G>A​(p.Val34Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000316 in 1,613,964 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

KIAA0586
NM_001329943.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -0.408
Variant links:
Genes affected
KIAA0586 (HGNC:19960): (KIAA0586) This gene encodes a conserved centrosomal protein that functions in ciliogenesis and responds to hedgehog signaling. Mutations in this gene causes Joubert syndrome 23. Alternative splicing results in multiple transcript variants and protein isoforms. [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.032953262).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KIAA0586NM_001329943.3 linkc.100G>A p.Val34Ile missense_variant Exon 1 of 31 ENST00000652326.2 NP_001316872.1 A0A494C171

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KIAA0586ENST00000652326.2 linkc.100G>A p.Val34Ile missense_variant Exon 1 of 31 NM_001329943.3 ENSP00000498929.1 A0A494C171

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152168
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00316
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
249266
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135236
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000335
AC:
49
AN:
1461678
Hom.:
0
Cov.:
32
AF XY:
0.0000399
AC XY:
29
AN XY:
727122
show subpopulations
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000378
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152286
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302
ExAC
AF:
0.00000827
AC:
1
EpiCase
AF:
0.000218
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Jul 30, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.100G>A (p.V34I) alteration is located in exon 1 (coding exon 1) of the KIAA0586 gene. This alteration results from a G to A substitution at nucleotide position 100, causing the valine (V) at amino acid position 34 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Joubert syndrome 23;C4225286:Short-rib thoracic dysplasia 14 with polydactyly Uncertain:1
Nov 19, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 46 of the KIAA0586 protein (p.Val46Ile). This variant is present in population databases (rs186659284, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with KIAA0586-related conditions. ClinVar contains an entry for this variant (Variation ID: 1059992). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
13
DANN
Benign
0.95
DEOGEN2
Benign
0.062
.;T;.
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.93
FATHMM_MKL
Benign
0.023
N
LIST_S2
Benign
0.58
T;T;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.033
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.34
.;N;.
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-0.39
N;.;N
REVEL
Benign
0.055
Sift
Benign
0.066
T;.;T
Sift4G
Benign
0.071
T;D;D
Polyphen
0.0010
.;B;.
Vest4
0.085
MutPred
0.31
.;Gain of catalytic residue at K22 (P = 3e-04);.;
MVP
0.10
MPC
0.020
ClinPred
0.051
T
GERP RS
-2.4
Varity_R
0.056
gMVP
0.032

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: rs186659284; hg19: chr14-58895082; API