rs769724508

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_052873.3(IFT43):​c.2T>A​(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.00000434 in 1,613,870 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 Pathogenic (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

IFT43
NM_052873.3 start_lost

Scores

6
4
5

Clinical Significance

Pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 3.73

Publications

2 publications found
Variant links:
Genes affected
IFT43 (HGNC:29669): (intraflagellar transport 43) This gene encodes a subunit of the intraflagellar transport complex A (IFT-A). IFT-A is a multiprotein complex that plays an important role in cilia assembly and maintenance by mediating retrograde ciliary transport. Mutations in this gene are a cause of cranioectodermal dysplasia-3 (CED3), also known as Sensenbrenner syndrome. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]
IFT43 Gene-Disease associations (from GenCC):
  • cranioectodermal dysplasia 3
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • short-rib thoracic dysplasia 18 with polydactyly
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • cranioectodermal dysplasia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • ciliopathy
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
  • retinitis pigmentosa 81
    Inheritance: AR, Unknown Classification: LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PVS1
Start lost variant, next in-frame start position is after 7 pathogenic variants. Next in-frame start position is after 22 codons. Genomic position: 75988894. Lost 0.100 part of the original CDS.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 14-75985788-T-A is Pathogenic according to our data. Variant chr14-75985788-T-A is described in ClinVar as Pathogenic. ClinVar VariationId is 488649.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_052873.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IFT43
NM_001102564.3
MANE Select
c.2T>Ap.Met1?
start_lost
Exon 1 of 9NP_001096034.1
IFT43
NM_052873.3
c.2T>Ap.Met1?
start_lost
Exon 1 of 8NP_443105.2
IFT43
NM_001255995.3
c.2T>Ap.Met1?
start_lost
Exon 1 of 4NP_001242924.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IFT43
ENST00000314067.11
TSL:2 MANE Select
c.2T>Ap.Met1?
start_lost
Exon 1 of 9ENSP00000324177.6
IFT43
ENST00000238628.10
TSL:1
c.2T>Ap.Met1?
start_lost
Exon 1 of 8ENSP00000238628.6
IFT43
ENST00000868360.1
c.2T>Ap.Met1?
start_lost
Exon 1 of 9ENSP00000538419.1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152058
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:
0.000193
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
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461812
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727204
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111960
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152058
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74272
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41390
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

ClinVar submissions as Germline
Significance:Pathogenic
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
not provided (1)
1
-
-
Short rib-polydactyly syndrome (1)
1
-
-
Short-rib thoracic dysplasia 18 with polydactyly (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.15
CADD
Benign
23
DANN
Benign
0.96
DEOGEN2
Benign
0.017
T
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Benign
0.74
D
LIST_S2
Uncertain
0.90
D
M_CAP
Pathogenic
0.42
D
MetaRNN
Pathogenic
0.99
D
MetaSVM
Benign
-0.47
T
PhyloP100
3.7
PROVEAN
Benign
-1.6
N
REVEL
Uncertain
0.42
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.98
D
Vest4
0.96
MutPred
0.97
Gain of ubiquitination at M1 (P = 0.0066)
MVP
0.56
ClinPred
1.0
D
GERP RS
4.2
PromoterAI
-0.20
Neutral
Varity_R
0.93
gMVP
0.53
Mutation Taster
=8/192
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs769724508; hg19: chr14-76452131; API