Genetic Variant CFAP70:p.Cys874Tyr (chr10-73277349-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001367801.1(CFAP70):c.2621G>A(p.Cys874Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,312 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

CFAP70
NM_001367801.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.164

Variant links:

Genes affected

CFAP70 (HGNC:30726): (cilia and flagella associated protein 70) Predicted to be involved in cilium assembly and cilium movement. Located in ciliary basal body and sperm flagellum. Part of outer dynein arm. Implicated in spermatogenic failure 41. [provided by Alliance of Genome Resources, Apr 2022]

CFAP70 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.01758039).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CFAP70	NM_001367801.1 link	c.2621G>A	p.Cys874Tyr	missense_variant	Exon 22 of 28	ENST00000355577.9	NP_001354730.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CFAP70	ENST00000355577.9 link	c.2621G>A	p.Cys874Tyr	missense_variant	Exon 22 of 28	5	NM_001367801.1	ENSP00000347781.4		A0A087WSW1

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00183

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:

0.0000120

AC:

AN:

250614

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135466

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000874

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

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:

0.00000616

AC:

AN:

1461026

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

726836

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000184

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

AN XY:

74448

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00183

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

Alfa

AF:

0.0000450

Hom.:

Bravo

AF:

0.000268

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2621G>A (p.C874Y) alteration is located in exon 22 (coding exon 21) of the CFAP70 gene. This alteration results from a G to A substitution at nucleotide position 2621, causing the cysteine (C) at amino acid position 874 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Benign

0.66

DEOGEN2

Benign

0.011

T;.;T

Eigen

Benign

-0.54

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.31

LIST_S2

Benign

0.70

T;T;.

M_CAP

Benign

0.0081

MetaRNN

Benign

0.018

T;T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.41

PROVEAN

Benign

-1.2

N;N;.

REVEL

Benign

0.040

Sift

Benign

1.0

T;T;.

Sift4G

Benign

1.0

T;T;T

Polyphen

0.17

B;.;.

Vest4

0.27

MVP

0.16

MPC

0.63

ClinPred

0.052

GERP RS

2.4

Varity_R

0.085

gMVP

0.19

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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