6-116628384-C-T

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001010892.3(RSPH4A):​c.1662+15C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00164 in 1,584,112 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0017 ( 8 hom. )

Consequence

RSPH4A
NM_001010892.3 intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -1.98

Publications

0 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: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae), 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: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.99).
BP6
Variant 6-116628384-C-T is Benign according to our data. Variant chr6-116628384-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 227901.
BS2
High Homozygotes in GnomAdExome4 at 8 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RSPH4ANM_001010892.3 linkc.1662+15C>T intron_variant Intron 3 of 5 ENST00000229554.10 NP_001010892.1 Q5TD94-1B3KTA9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RSPH4AENST00000229554.10 linkc.1662+15C>T intron_variant Intron 3 of 5 1 NM_001010892.3 ENSP00000229554.5 Q5TD94-1
RSPH4AENST00000368581.8 linkc.1662+15C>T intron_variant Intron 3 of 4 1 ENSP00000357570.4 Q5TD94-3
RSPH4AENST00000368580.4 linkc.922-1183C>T intron_variant Intron 2 of 4 5 ENSP00000357569.4 Q5TD94-2

Frequencies

GnomAD3 genomes
AF:
0.00135
AC:
206
AN:
152104
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000507
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000328
Gnomad ASJ
AF:
0.00519
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000416
Gnomad FIN
AF:
0.00179
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00201
Gnomad OTH
AF:
0.00192
GnomAD2 exomes
AF:
0.00162
AC:
396
AN:
244194
AF XY:
0.00163
show subpopulations
Gnomad AFR exome
AF:
0.000316
Gnomad AMR exome
AF:
0.000673
Gnomad ASJ exome
AF:
0.00336
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00200
Gnomad NFE exome
AF:
0.00241
Gnomad OTH exome
AF:
0.00201
GnomAD4 exome
AF:
0.00167
AC:
2395
AN:
1431890
Hom.:
8
Cov.:
25
AF XY:
0.00172
AC XY:
1226
AN XY:
714268
show subpopulations
African (AFR)
AF:
0.000274
AC:
9
AN:
32854
American (AMR)
AF:
0.000652
AC:
29
AN:
44484
Ashkenazi Jewish (ASJ)
AF:
0.00331
AC:
86
AN:
25954
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39536
South Asian (SAS)
AF:
0.000736
AC:
63
AN:
85640
European-Finnish (FIN)
AF:
0.00239
AC:
126
AN:
52808
Middle Eastern (MID)
AF:
0.00158
AC:
9
AN:
5700
European-Non Finnish (NFE)
AF:
0.00181
AC:
1970
AN:
1085522
Other (OTH)
AF:
0.00173
AC:
103
AN:
59392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
117
234
351
468
585
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
56
112
168
224
280
<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:
0.00135
AC:
206
AN:
152222
Hom.:
0
Cov.:
32
AF XY:
0.00130
AC XY:
97
AN XY:
74422
show subpopulations
African (AFR)
AF:
0.000506
AC:
21
AN:
41542
American (AMR)
AF:
0.000327
AC:
5
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00519
AC:
18
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.000416
AC:
2
AN:
4808
European-Finnish (FIN)
AF:
0.00179
AC:
19
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00201
AC:
137
AN:
68022
Other (OTH)
AF:
0.00190
AC:
4
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
11
23
34
46
57
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00203
Hom.:
1
Bravo
AF:
0.00124
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia 11 Uncertain:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified Benign:1
Jan 29, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

c.1662+15C>T in intron 3 of RSPH4A: This variant is not expected to have clinica l significance because it is not located within the splice consensus sequence. I t has been identified in 0.2% (164/65466) of European chromosomes, including 2 h omozygotes, by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitut e.org; dbSNP rs183372450). -

Primary ciliary dyskinesia Benign:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.99
CADD
Benign
0.013
DANN
Benign
0.18
PhyloP100
-2.0
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs183372450; hg19: chr6-116949547; API