rs141632537

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_001351225.2(KIAA0753):​c.-481C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000729 in 1,561,708 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0031 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00047 ( 1 hom. )

Consequence

KIAA0753
NM_001351225.2 5_prime_UTR_premature_start_codon_gain

Scores

6
11

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 2.35
Variant links:
Genes affected
KIAA0753 (HGNC:29110): (KIAA0753) This gene encodes a subunit of a protein complex that regulates ciliogenesis and cilia maintenance. The encoded protein has also been shown to regulate centriolar duplication. Mutations in this gene cause an orofaciodigital syndrome and a form of Joubert syndrome in human patients. [provided by RefSeq, May 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0064225495).
BP6
Variant 17-6624826-G-A is Benign according to our data. Variant chr17-6624826-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 445629.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0031 (472/152268) while in subpopulation AFR AF= 0.0105 (435/41532). AF 95% confidence interval is 0.00966. There are 0 homozygotes in gnomad4. There are 209 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KIAA0753NM_014804.3 linkc.754C>T p.Arg252Cys missense_variant Exon 4 of 19 ENST00000361413.8 NP_055619.2 Q2KHM9-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KIAA0753ENST00000361413.8 linkc.754C>T p.Arg252Cys missense_variant Exon 4 of 19 1 NM_014804.3 ENSP00000355250.3 Q2KHM9-1

Frequencies

GnomAD3 genomes
AF:
0.00310
AC:
471
AN:
152150
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0105
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00190
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:
0.0000882
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000867
AC:
149
AN:
171824
Hom.:
0
AF XY:
0.000602
AC XY:
55
AN XY:
91324
show subpopulations
Gnomad AFR exome
AF:
0.0113
Gnomad AMR exome
AF:
0.000922
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000421
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000158
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000473
AC:
666
AN:
1409440
Hom.:
1
Cov.:
30
AF XY:
0.000412
AC XY:
287
AN XY:
696116
show subpopulations
Gnomad4 AFR exome
AF:
0.0109
Gnomad4 AMR exome
AF:
0.000782
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000534
Gnomad4 SAS exome
AF:
0.0000249
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000217
Gnomad4 OTH exome
AF:
0.000771
GnomAD4 genome
AF:
0.00310
AC:
472
AN:
152268
Hom.:
0
Cov.:
32
AF XY:
0.00281
AC XY:
209
AN XY:
74456
show subpopulations
Gnomad4 AFR
AF:
0.0105
Gnomad4 AMR
AF:
0.00189
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.000569
Hom.:
1
Bravo
AF:
0.00368
ESP6500AA
AF:
0.00779
AC:
30
ESP6500EA
AF:
0.000121
AC:
1
ExAC
AF:
0.000668
AC:
76

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Jun 19, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 22, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Inborn genetic diseases Benign:1
Sep 02, 2024
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

KIAA0753-related disorder Benign:1
Sep 18, 2019
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This 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
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.47
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.015
T
Eigen
Uncertain
0.20
Eigen_PC
Benign
0.088
FATHMM_MKL
Benign
0.69
D
LIST_S2
Uncertain
0.88
D
MetaRNN
Benign
0.0064
T
MetaSVM
Benign
-1.1
T
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-3.0
D
REVEL
Benign
0.073
Sift
Uncertain
0.0070
D
Sift4G
Uncertain
0.050
T
Polyphen
1.0
D
Vest4
0.35
MVP
0.33
MPC
0.29
ClinPred
0.029
T
GERP RS
2.9
Varity_R
0.082
gMVP
0.034

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs141632537; hg19: chr17-6528146; COSMIC: COSV63817272; COSMIC: COSV63817272; API