rs575857124

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001010892.3(RSPH4A):​c.*8A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00162 in 1,606,566 control chromosomes in the GnomAD database, including 81 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00084 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0017 ( 79 hom. )

Consequence

RSPH4A
NM_001010892.3 3_prime_UTR

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.40
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 6-116632449-A-G is Benign according to our data. Variant chr6-116632449-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 227053.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-116632449-A-G is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00084 (128/152308) while in subpopulation SAS AF= 0.0259 (125/4828). AF 95% confidence interval is 0.0222. There are 2 homozygotes in gnomad4. There are 106 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RSPH4ANM_001010892.3 linkc.*8A>G 3_prime_UTR_variant Exon 6 of 6 ENST00000229554.10 NP_001010892.1 Q5TD94-1B3KTA9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RSPH4AENST00000229554.10 linkc.*8A>G 3_prime_UTR_variant Exon 6 of 6 1 NM_001010892.3 ENSP00000229554.5 Q5TD94-1
RSPH4AENST00000368581.8 linkc.*220A>G 3_prime_UTR_variant Exon 5 of 5 1 ENSP00000357570.4 Q5TD94-3
RSPH4AENST00000368580.4 linkc.*8A>G downstream_gene_variant 5 ENSP00000357569.4 Q5TD94-2

Frequencies

GnomAD3 genomes
AF:
0.000834
AC:
127
AN:
152190
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0257
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.00351
AC:
829
AN:
236254
Hom.:
17
AF XY:
0.00487
AC XY:
620
AN XY:
127194
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000571
Gnomad SAS exome
AF:
0.0287
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000189
Gnomad OTH exome
AF:
0.000687
GnomAD4 exome
AF:
0.00170
AC:
2474
AN:
1454258
Hom.:
79
Cov.:
31
AF XY:
0.00253
AC XY:
1830
AN XY:
722490
show subpopulations
Gnomad4 AFR exome
AF:
0.0000599
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0279
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.00146
GnomAD4 genome
AF:
0.000840
AC:
128
AN:
152308
Hom.:
2
Cov.:
32
AF XY:
0.00142
AC XY:
106
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0259
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000141
Hom.:
0
Bravo
AF:
0.000106
Asia WGS
AF:
0.00606
AC:
21
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Dec 10, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

c.*8A>G in RSPH4A: This variant is not expected to have clinical significance be cause it has been identified in 3% (404/12030) of South Asian chromosomes, inclu ding 7 homozygotes by the Exome Aggregation Consortium (ExAC, http://exac.broadi nstitute.org; dbSNP rs575857124). -

-
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Primary ciliary dyskinesia 11 Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Likely benign
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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
10
DANN
Benign
0.75

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.

Other links and lift over

dbSNP: rs575857124; hg19: chr6-116953612; API