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GeneBe

21-32601940-TTAAA-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_ModeratePM2PP5

The NM_021254.4(CFAP298):​c.792_795del​(p.Tyr264Ter) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000343 in 1,458,310 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

CFAP298
NM_021254.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 6.69
Variant links:
Genes affected
CFAP298 (HGNC:1301): (cilia and flagella associated protein 298) This gene encodes a protein that plays a critical role in dynein arm assembly and motile cilia function. Mutations in this gene result in primary ciliary dyskinesia. Naturally occuring readthrough transcription occurs from this locus to the downstream t-complex 10 like (TCP10L) gene. [provided by RefSeq, Apr 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0928 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 21-32601940-TTAAA-T is Pathogenic according to our data. Variant chr21-32601940-TTAAA-T is described in ClinVar as [Pathogenic]. Clinvar id is 88690.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CFAP298NM_021254.4 linkuse as main transcriptc.792_795del p.Tyr264Ter frameshift_variant 7/7 ENST00000290155.8
CFAP298-TCP10LNR_146638.2 linkuse as main transcriptn.800+1217_800+1220del intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CFAP298ENST00000290155.8 linkuse as main transcriptc.792_795del p.Tyr264Ter frameshift_variant 7/71 NM_021254.4 P1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251412
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135890
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1458310
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
725766
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000451
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia 26 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMOct 03, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs398122401; hg19: chr21-33974250; API