20-43613959-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate

The NM_016004.5(IFT52):​c.595G>A​(p.Ala199Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,613,654 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

IFT52
NM_016004.5 missense

Scores

8
8
3

Clinical Significance

Likely pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 9.94
Variant links:
Genes affected
IFT52 (HGNC:15901): (intraflagellar transport 52) This gene encodes a conserved proline-rich protein that is a component of the intraflagellar transport-B (IFT-B) core complex. The encoded protein is essential for the integrity of the IFT-B core complex, and for biosynthesis and maintenance of cilia. Mutations in this gene are associated with ciliopathy that affects the skeleton. [provided by RefSeq, Oct 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.938
PP5
Variant 20-43613959-G-A is Pathogenic according to our data. Variant chr20-43613959-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 253307.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IFT52NM_016004.5 linkuse as main transcriptc.595G>A p.Ala199Thr missense_variant 7/14 ENST00000373030.8 NP_057088.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IFT52ENST00000373030.8 linkuse as main transcriptc.595G>A p.Ala199Thr missense_variant 7/141 NM_016004.5 ENSP00000362121 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152090
Hom.:
0
Cov.:
33
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:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251330
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135860
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461564
Hom.:
0
Cov.:
30
AF XY:
0.0000193
AC XY:
14
AN XY:
727108
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.0000207
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152090
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74284
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:
0.00000378
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Short-rib thoracic dysplasia 16 with or without polydactyly Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMAug 30, 2016- -
not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingGeneDxFeb 09, 2024Published functional studies demonstrate a damaging effect (PMID: 35704471); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 27466190, 35704471) -
Short rib-polydactyly syndrome Pathogenic:1
Likely pathogenic, no assertion criteria providedresearchUniversity of Washington Center for Mendelian Genomics, University of Washington-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.35
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.79
D;D
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.94
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
.;D
M_CAP
Benign
0.042
D
MetaRNN
Pathogenic
0.94
D;D
MetaSVM
Uncertain
0.16
D
MutationAssessor
Pathogenic
2.9
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Uncertain
-3.5
D;D
REVEL
Uncertain
0.60
Sift
Benign
0.052
T;T
Sift4G
Uncertain
0.033
D;D
Polyphen
0.98
D;D
Vest4
0.95
MutPred
0.77
Gain of methylation at K204 (P = 0.0829);Gain of methylation at K204 (P = 0.0829);
MVP
0.84
MPC
0.74
ClinPred
0.95
D
GERP RS
5.8
Varity_R
0.47
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs886037869; hg19: chr20-42242599; API