21-42477381-G-T

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_080860.4(RSPH1):​c.637C>A​(p.Gln213Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00088 in 1,612,602 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q213P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00089 ( 7 hom. )

Consequence

RSPH1
NM_080860.4 missense

Scores

19

Clinical Significance

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

Conservation

PhyloP100: 0.672
Variant links:
Genes affected
RSPH1 (HGNC:12371): (radial spoke head component 1) This gene encodes a male meiotic metaphase chromosome-associated acidic protein. This gene is expressed in tissues with motile cilia or flagella, including the trachea, lungs, airway brushings, and testes. Mutations in this gene result in primary ciliary dyskinesia-24. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2014]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004098326).
BP6
Variant 21-42477381-G-T is Benign according to our data. Variant chr21-42477381-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 241787.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000889 (1300/1461756) while in subpopulation SAS AF = 0.00289 (249/86252). AF 95% confidence interval is 0.00259. There are 7 homozygotes in GnomAdExome4. There are 671 alleles in the male GnomAdExome4 subpopulation. Median coverage is 34. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 7 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RSPH1NM_080860.4 linkc.637C>A p.Gln213Lys missense_variant Exon 7 of 9 ENST00000291536.8 NP_543136.1 Q8WYR4-1
RSPH1NM_001286506.2 linkc.523C>A p.Gln175Lys missense_variant Exon 6 of 8 NP_001273435.1 Q8WYR4-2
RSPH1XM_011529786.2 linkc.565C>A p.Gln189Lys missense_variant Exon 6 of 8 XP_011528088.1
RSPH1XM_005261208.3 linkc.430C>A p.Gln144Lys missense_variant Exon 5 of 7 XP_005261265.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RSPH1ENST00000291536.8 linkc.637C>A p.Gln213Lys missense_variant Exon 7 of 9 1 NM_080860.4 ENSP00000291536.3 Q8WYR4-1
RSPH1ENST00000398352.3 linkc.523C>A p.Gln175Lys missense_variant Exon 6 of 8 5 ENSP00000381395.3 Q8WYR4-2
RSPH1ENST00000493019.1 linkn.2255C>A non_coding_transcript_exon_variant Exon 6 of 8 2

Frequencies

GnomAD3 genomes
AF:
0.000790
AC:
119
AN:
150728
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000318
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000133
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00273
Gnomad FIN
AF:
0.00325
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000828
Gnomad OTH
AF:
0.000485
GnomAD2 exomes
AF:
0.000939
AC:
236
AN:
251414
AF XY:
0.00105
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00254
Gnomad NFE exome
AF:
0.000660
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.000889
AC:
1300
AN:
1461756
Hom.:
7
Cov.:
34
AF XY:
0.000923
AC XY:
671
AN XY:
727180
show subpopulations
African (AFR)
AF:
0.000179
AC:
6
AN:
33478
American (AMR)
AF:
0.000112
AC:
5
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00289
AC:
249
AN:
86252
European-Finnish (FIN)
AF:
0.00251
AC:
134
AN:
53378
Middle Eastern (MID)
AF:
0.000867
AC:
5
AN:
5768
European-Non Finnish (NFE)
AF:
0.000759
AC:
844
AN:
1111934
Other (OTH)
AF:
0.000944
AC:
57
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
64
128
193
257
321
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
38
76
114
152
190
<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:
0.000789
AC:
119
AN:
150846
Hom.:
0
Cov.:
34
AF XY:
0.000991
AC XY:
73
AN XY:
73680
show subpopulations
African (AFR)
AF:
0.000317
AC:
13
AN:
41026
American (AMR)
AF:
0.000132
AC:
2
AN:
15104
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3458
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5146
South Asian (SAS)
AF:
0.00273
AC:
13
AN:
4762
European-Finnish (FIN)
AF:
0.00325
AC:
34
AN:
10468
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000828
AC:
56
AN:
67594
Other (OTH)
AF:
0.000480
AC:
1
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
5
10
16
21
26
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:
0.000649
Hom.:
1
Bravo
AF:
0.000404
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00130
AC:
5
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00105
AC:
9
ExAC
AF:
0.000939
AC:
114
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000927
EpiControl
AF:
0.00124

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Benign:1
Jan 27, 2022
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Primary ciliary dyskinesia Benign:1
Dec 02, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

RSPH1-related disorder Benign:1
Jul 28, 2024
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.056
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
1.4
DANN
Benign
0.81
DEOGEN2
Benign
0.021
T;.
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.0036
N
LIST_S2
Benign
0.0083
T;T
M_CAP
Benign
0.0073
T
MetaRNN
Benign
0.0041
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-1.4
N;.
PhyloP100
0.67
PrimateAI
Benign
0.43
T
PROVEAN
Benign
1.1
N;N
REVEL
Benign
0.069
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0
B;.
Vest4
0.090
MVP
0.19
MPC
0.12
ClinPred
0.0018
T
GERP RS
1.8
Varity_R
0.053
gMVP
0.34
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

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Other links and lift over

dbSNP: rs146298259; hg19: chr21-43897491; COSMIC: COSV52318113; API