NM_020800.3:c.1678A>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_020800.3(IFT80):​c.1678A>G​(p.Asn560Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000806 in 1,613,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000077 ( 0 hom. )

Consequence

IFT80
NM_020800.3 missense

Scores

7
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 2.39

Publications

0 publications found
Variant links:
Genes affected
IFT80 (HGNC:29262): (intraflagellar transport 80) The protein encoded by this gene is part of the intraflagellar transport complex B and is necessary for the function of motile and sensory cilia. Defects in this gene are a cause of asphyxiating thoracic dystrophy 2 (ATD2). Three transcript variants encoding two different isoforms have been found for this gene.[provided by RefSeq, Jun 2010]
TRIM59-IFT80 (HGNC:56756): (TRIM59-IFT80 readthrough (NMD candidate)) This locus represents naturally occurring readthrough transcription between the neighboring TRIM59 (tripartite motif containing 59) and IFT80 (intraflagellar transport 80) genes on chromosome 3. The readthrough transcript is unlikely to produce a protein product. [provided by RefSeq, Jun 2017]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.020322382).
BP6
Variant 3-160279351-T-C is Benign according to our data. Variant chr3-160279351-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 343967.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020800.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IFT80
NM_020800.3
MANE Select
c.1678A>Gp.Asn560Asp
missense
Exon 16 of 20NP_065851.1Q9P2H3-1
IFT80
NM_001190241.2
c.1267A>Gp.Asn423Asp
missense
Exon 17 of 21NP_001177170.1Q9P2H3-2
IFT80
NM_001190242.2
c.1267A>Gp.Asn423Asp
missense
Exon 15 of 19NP_001177171.1Q9P2H3-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IFT80
ENST00000326448.12
TSL:1 MANE Select
c.1678A>Gp.Asn560Asp
missense
Exon 16 of 20ENSP00000312778.7Q9P2H3-1
IFT80
ENST00000483465.5
TSL:1
c.1267A>Gp.Asn423Asp
missense
Exon 15 of 19ENSP00000418196.1Q9P2H3-2
TRIM59-IFT80
ENST00000483754.1
TSL:2
n.2191A>G
non_coding_transcript_exon
Exon 14 of 19ENSP00000456272.1H3BRJ5

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152112
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00403
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:
0.000957
GnomAD2 exomes
AF:
0.000179
AC:
45
AN:
250730
AF XY:
0.000177
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00357
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.000655
GnomAD4 exome
AF:
0.0000773
AC:
113
AN:
1460968
Hom.:
0
Cov.:
31
AF XY:
0.0000784
AC XY:
57
AN XY:
726854
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33448
American (AMR)
AF:
0.00
AC:
0
AN:
44672
Ashkenazi Jewish (ASJ)
AF:
0.00299
AC:
78
AN:
26120
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39652
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53382
Middle Eastern (MID)
AF:
0.000521
AC:
3
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000135
AC:
15
AN:
1111326
Other (OTH)
AF:
0.000282
AC:
17
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
6
12
17
23
29
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000112
AC:
17
AN:
152112
Hom.:
0
Cov.:
33
AF XY:
0.000135
AC XY:
10
AN XY:
74296
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41404
American (AMR)
AF:
0.00
AC:
0
AN:
15258
Ashkenazi Jewish (ASJ)
AF:
0.00403
AC:
14
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.000957
AC:
2
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000360
Hom.:
0
Bravo
AF:
0.0000945
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000148
AC:
18
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Asphyxiating thoracic dystrophy 2 (2)
-
1
-
Inborn genetic diseases (1)
-
-
1
Jeune thoracic dystrophy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.47
T
Eigen
Benign
0.016
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.90
D
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.020
T
MetaSVM
Benign
-0.61
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
2.4
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-2.5
N
REVEL
Benign
0.20
Sift
Benign
0.15
T
Sift4G
Benign
0.27
T
Polyphen
0.038
B
Vest4
0.33
MVP
0.76
MPC
0.18
ClinPred
0.059
T
GERP RS
6.2
Varity_R
0.11
gMVP
0.34
Mutation Taster
=97/3
polymorphism

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: rs202145480; hg19: chr3-159997139; API