chr21-44330245-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004928.3(CFAP410):​c.724C>T​(p.Arg242Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000139 in 1,443,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R242Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CFAP410
NM_004928.3 missense

Scores

1
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.59
Variant links:
Genes affected
CFAP410 (HGNC:1260): (cilia and flagella associated protein 410) Four alternatively spliced transcript variants encoding four different isoforms have been found for this nuclear gene. All isoforms contain leucine-rich repeats. Three of these isoforms are mitochondrial proteins and one of them lacks the target peptide, so is not located in mitochondrion. This gene is down-regulated in Down syndrome (DS) brain, which may represent mitochondrial dysfunction in DS patients. [provided by RefSeq, Sep 2012]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2540892).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CFAP410NM_004928.3 linkc.724C>T p.Arg242Trp missense_variant Exon 7 of 7 ENST00000339818.9 NP_004919.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CFAP410ENST00000339818.9 linkc.724C>T p.Arg242Trp missense_variant Exon 7 of 7 1 NM_004928.3 ENSP00000344566.4 O43822-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000142
AC:
3
AN:
211136
AF XY:
0.0000173
show subpopulations
Gnomad AFR exome
AF:
0.0000778
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000613
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000109
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000139
AC:
20
AN:
1443156
Hom.:
0
Cov.:
30
AF XY:
0.0000126
AC XY:
9
AN XY:
716616
show subpopulations
Gnomad4 AFR exome
AF:
0.00
AC:
0
AN:
33262
Gnomad4 AMR exome
AF:
0.00
AC:
0
AN:
42674
Gnomad4 ASJ exome
AF:
0.00
AC:
0
AN:
25776
Gnomad4 EAS exome
AF:
0.0000512
AC:
2
AN:
39046
Gnomad4 SAS exome
AF:
0.0000119
AC:
1
AN:
83842
Gnomad4 FIN exome
AF:
0.00
AC:
0
AN:
48058
Gnomad4 NFE exome
AF:
0.0000154
AC:
17
AN:
1105110
Gnomad4 Remaining exome
AF:
0.00
AC:
0
AN:
59730
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
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
Cov.:
33
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000332
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Jul 26, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 1500883). This variant has not been reported in the literature in individuals affected with CFAP410-related conditions. This variant is present in population databases (rs780412319, gnomAD 0.008%). This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 242 of the CFAP410 protein (p.Arg242Trp). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.24
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.15
T;.;.
Eigen
Uncertain
0.22
Eigen_PC
Benign
0.10
FATHMM_MKL
Benign
0.65
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Uncertain
0.092
D
MetaRNN
Benign
0.25
T;T;T
MetaSVM
Uncertain
-0.23
T
PROVEAN
Uncertain
-4.1
D;D;D
REVEL
Benign
0.16
Sift
Uncertain
0.0010
D;D;D
Sift4G
Uncertain
0.0020
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.28
MutPred
0.43
Loss of disorder (P = 0);.;.;
MVP
0.72
MPC
0.35
ClinPred
0.88
D
GERP RS
3.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.22
gMVP
0.54
Mutation Taster
=74/26
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs780412319; hg19: chr21-45750128; API