chr21-44330245-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 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 made for transcript

Verdict is Uncertain_significance. Variant got 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/exons MANE UniProt
CFAP410NM_004928.3 linkuse as main transcriptc.724C>T p.Arg242Trp missense_variant 7/7 ENST00000339818.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CFAP410ENST00000339818.9 linkuse as main transcriptc.724C>T p.Arg242Trp missense_variant 7/71 NM_004928.3 P4O43822-1
ENST00000444409.1 linkuse as main transcript upstream_gene_variant 2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000142
AC:
3
AN:
211136
Hom.:
0
AF XY:
0.0000173
AC XY:
2
AN XY:
115920
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 SAS exome
AF:
0.00
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
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000512
Gnomad4 SAS exome
AF:
0.0000119
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000154
Gnomad4 OTH exome
AF:
0.00
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
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 26, 2022Algorithms 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"). 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. 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
MutationTaster
Benign
0.82
D;D;N
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

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