rs431905521

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM5

The NM_014714.4(IFT140):ā€‹c.874G>Cā€‹(p.Val292Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,460,968 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V292M) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

IFT140
NM_014714.4 missense

Scores

5
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.55
Variant links:
Genes affected
IFT140 (HGNC:29077): (intraflagellar transport 140) This gene encodes one of the subunits of the intraflagellar transport (IFT) complex A. Intraflagellar transport is involved in the genesis, resorption and signaling of primary cilia. The primary cilium is a microtubule-based sensory organelle at the surface of most quiescent mammalian cells, that receives signals from its environment, such as the flow of fluid, light or odors, and transduces those signals to the nucleus. Loss of the corresponding protein in mouse results in renal cystic disease. [provided by RefSeq, Jun 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr16-1587961-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 97053.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IFT140NM_014714.4 linkuse as main transcriptc.874G>C p.Val292Leu missense_variant 8/31 ENST00000426508.7
LOC105371046NR_135176.1 linkuse as main transcriptn.59+7376C>G intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IFT140ENST00000426508.7 linkuse as main transcriptc.874G>C p.Val292Leu missense_variant 8/315 NM_014714.4 P1Q96RY7-1
ENST00000563162.1 linkuse as main transcriptn.59+7376C>G intron_variant, non_coding_transcript_variant 2
IFT140ENST00000439987.6 linkuse as main transcriptn.935G>C non_coding_transcript_exon_variant 7/192
IFT140ENST00000397417.6 linkuse as main transcriptc.329-3541G>C intron_variant, NMD_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249478
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
134878
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
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:
6.84e-7
AC:
1
AN:
1460968
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726648
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.22
CADD
Benign
21
DANN
Benign
0.96
DEOGEN2
Benign
0.024
T
Eigen
Benign
0.092
Eigen_PC
Benign
0.078
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.049
D
MetaRNN
Uncertain
0.60
D
MetaSVM
Benign
-0.62
T
MutationAssessor
Uncertain
2.4
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.29
Sift
Benign
0.16
T
Sift4G
Benign
0.12
T
Polyphen
0.77
P
Vest4
0.61
MutPred
0.51
Loss of catalytic residue at V292 (P = 0.0238);
MVP
0.72
MPC
0.073
ClinPred
0.50
T
GERP RS
4.4
Varity_R
0.22
gMVP
0.67

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.

Other links and lift over

dbSNP: rs431905521; hg19: chr16-1637962; API