Variant 20-43594795-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_016004.5(IFT52):c.97C>T(p.Arg33Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000627 in 1,594,190 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

IFT52
NM_016004.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.55

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]

IFT52 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IFT52	NM_016004.5 linkuse as main transcript	c.97C>T	p.Arg33Trp	missense_variant	2/14	ENST00000373030.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
IFT52	ENST00000373030.8 linkuse as main transcript	c.97C>T	p.Arg33Trp	missense_variant	2/14	1	NM_016004.5	P1
IFT52	ENST00000373039.4 linkuse as main transcript	c.97C>T	p.Arg33Trp	missense_variant	2/14	5		P1
IFT52	ENST00000486243.1 linkuse as main transcript	n.74C>T		non_coding_transcript_exon_variant	1/3	5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152114

Hom.:

Cov.:

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:

0.0000119

AC:

AN:

251358

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135856

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000624

AC:

AN:

1441958

Hom.:

Cov.:

AF XY:

0.00000278

AC XY:

AN XY:

718788

show subpopulations

Gnomad4 AFR exome

AF:

0.0000907

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000505

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.00000183

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74422

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:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 13, 2024

The c.97C>T (p.R33W) alteration is located in exon 2 (coding exon 1) of the IFT52 gene. This alteration results from a C to T substitution at nucleotide position 97, causing the arginine (R) at amino acid position 33 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.57

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Pathogenic

0.15

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.75

D;D

Eigen

Pathogenic

0.88

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Uncertain

0.96

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.72

D;D

MetaSVM

Uncertain

0.17

MutationAssessor

Uncertain

2.8

M;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.50

PROVEAN

Pathogenic

-5.5

D;D

REVEL

Uncertain

0.61

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;D

Vest4

0.51

MutPred

0.61

Loss of disorder (P = 0.0172);Loss of disorder (P = 0.0172);

MVP

0.87

MPC

0.77

ClinPred

0.99

GERP RS

5.8

Varity_R

0.76

gMVP

0.76

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over