chr21-44330203-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_004928.3(CFAP410):c.766G>A(p.Glu256Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000115 in 1,565,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

CFAP410
NM_004928.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.913

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]

CFAP410 links:

ENSG00000241728 (HGNC:):

ENSG00000241728 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a chain Cilia- and flagella-associated protein 410 (size 255) in uniprot entity CF410_HUMAN there are 22 pathogenic changes around while only 9 benign (71%) in NM_004928.3

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.098065525).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CFAP410	NM_004928.3 link	c.766G>A	p.Glu256Lys	missense_variant	Exon 7 of 7	ENST00000339818.9	NP_004919.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CFAP410	ENST00000339818.9 link	c.766G>A	p.Glu256Lys	missense_variant	Exon 7 of 7	1	NM_004928.3	ENSP00000344566.4		O43822-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000346

AC:

AN:

173242

Hom.:

AF XY:

0.0000423

AC XY:

AN XY:

94520

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000360

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000761

Gnomad SAS exome

AF:

0.000161

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000120

AC:

AN:

1412932

Hom.:

Cov.:

AF XY:

0.0000186

AC XY:

AN XY:

699734

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000257

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000536

Gnomad4 SAS exome

AF:

0.000111

Gnomad4 FIN exome

AF:

0.0000238

Gnomad4 NFE exome

AF:

0.00000366

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000842

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Nov 01, 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. This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 256 of the CFAP410 protein (p.Glu256Lys). This variant is present in population databases (rs766177483, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with CFAP410-related conditions. ClinVar contains an entry for this variant (Variation ID: 1491485). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.017

T;.;.

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.78

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.56

T;T;T

M_CAP

Benign

0.027

MetaRNN

Benign

0.098

T;T;T

MetaSVM

Benign

-0.95

PROVEAN

Benign

-1.1

N;N;N

REVEL

Benign

0.075

Sift

Pathogenic

0.0

D;D;D

Sift4G

Uncertain

0.022

D;D;D

Polyphen

0.57

P;.;.

Vest4

0.29

MutPred

0.31

Gain of ubiquitination at E256 (P = 0.0029);.;.;

MVP

0.22

MPC

0.075

ClinPred

0.082

GERP RS

-1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.095

gMVP

0.13

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over