rs869320683

Variant summary

Our verdict is Pathogenic. The variant received 15 ACMG points: 16P and 1B. PVS1PP5_Very_StrongBS2_Supporting

The ENST00000229554.10(RSPH4A):​c.921_921+3delAGTA​(p.Ile307MetfsTer8) variant causes a frameshift, splice donor, splice region, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000461 in 1,562,432 control chromosomes in the GnomAD database, including 3 homozygotes. 1/1 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00028 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000021 ( 2 hom. )

Consequence

RSPH4A
ENST00000229554.10 frameshift, splice_donor, splice_region, intron

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:11

Conservation

PhyloP100: 7.37

Publications

7 publications found
Variant links:
Genes affected
RSPH4A (HGNC:21558): (radial spoke head component 4A) This gene encodes a protein that appears to be a component the radial spoke head, as determined by homology to similar proteins in the biflagellate alga Chlamydomonas reinhardtii and other ciliates. Radial spokes, which are regularly spaced along cilia, sperm, and flagella axonemes, consist of a thin 'stalk' and a bulbous 'head' that form a signal transduction scaffold between the central pair of microtubules and dynein. Mutations in this gene cause primary ciliary dyskinesia 1, a disease arising from dysmotility of motile cilia and sperm. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]
RSPH4A Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 11
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, ClinGen
  • primary ciliary dyskinesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 15 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 6-116623001-TAGTA-T is Pathogenic according to our data. Variant chr6-116623001-TAGTA-T is described in ClinVar as Pathogenic. ClinVar VariationId is 88863.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAdExome4 at 2 AR,AD geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000229554.10. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RSPH4A
NM_001010892.3
MANE Select
c.921+3_921+6delAAGT
splice_region intron
N/ANP_001010892.1Q5TD94-1
RSPH4A
NM_001161664.2
c.921+3_921+6delAAGT
splice_region intron
N/ANP_001155136.1Q5TD94-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RSPH4A
ENST00000229554.10
TSL:1 MANE Select
c.921_921+3delAGTAp.Ile307MetfsTer8
frameshift splice_donor splice_region intron
Exon 2 of 6ENSP00000229554.5Q5TD94-1
RSPH4A
ENST00000368581.8
TSL:1
c.921_921+3delAGTAp.Ile307MetfsTer8
frameshift splice_donor splice_region intron
Exon 2 of 5ENSP00000357570.4Q5TD94-3
RSPH4A
ENST00000368580.4
TSL:5
c.921_921+3delAGTAp.Ile307AlafsTer28
frameshift splice_donor splice_region intron
Exon 2 of 5ENSP00000357569.4Q5TD94-2

Frequencies

GnomAD3 genomes
AF:
0.000276
AC:
42
AN:
152222
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00249
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:
0.000478
GnomAD2 exomes
AF:
0.0000320
AC:
8
AN:
249652
AF XY:
0.0000369
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000887
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000213
AC:
30
AN:
1410092
Hom.:
2
AF XY:
0.0000156
AC XY:
11
AN XY:
704904
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32360
American (AMR)
AF:
0.000425
AC:
19
AN:
44680
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25792
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39390
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85158
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53300
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5666
European-Non Finnish (NFE)
AF:
0.00000282
AC:
3
AN:
1064996
Other (OTH)
AF:
0.000136
AC:
8
AN:
58750
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.448
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

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
AF:
0.000276
AC:
42
AN:
152340
Hom.:
1
Cov.:
33
AF XY:
0.000309
AC XY:
23
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.0000722
AC:
3
AN:
41580
American (AMR)
AF:
0.00248
AC:
38
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.000748

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
3
-
-
not provided (3)
3
-
-
Primary ciliary dyskinesia (3)
3
-
-
Primary ciliary dyskinesia 11 (3)
1
-
-
Kartagener syndrome (1)
1
-
-
RSPH4A-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
PhyloP100
7.4
Mutation Taster
=3/197
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.99
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.99
Position offset: 1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs869320683; hg19: chr6-116944164; API