chr21-42475891-A-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_080860.4(RSPH1):​c.877+7T>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000134 in 1,594,758 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00075 ( 0 hom., cov: 27)
Exomes 𝑓: 0.000072 ( 1 hom. )

Consequence

RSPH1
NM_080860.4 splice_region, intron

Scores

2
Splicing: ADA: 0.00001467
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.548
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
Variant 21-42475891-A-T is Benign according to our data. Variant chr21-42475891-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 698289.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RSPH1NM_080860.4 linkuse as main transcriptc.877+7T>A splice_region_variant, intron_variant ENST00000291536.8 NP_543136.1
RSPH1NM_001286506.2 linkuse as main transcriptc.763+7T>A splice_region_variant, intron_variant NP_001273435.1
RSPH1XM_005261208.3 linkuse as main transcriptc.670+7T>A splice_region_variant, intron_variant XP_005261265.1
RSPH1XM_011529786.2 linkuse as main transcriptc.805+7T>A splice_region_variant, intron_variant XP_011528088.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RSPH1ENST00000291536.8 linkuse as main transcriptc.877+7T>A splice_region_variant, intron_variant 1 NM_080860.4 ENSP00000291536 P1Q8WYR4-1
RSPH1ENST00000398352.3 linkuse as main transcriptc.763+7T>A splice_region_variant, intron_variant 5 ENSP00000381395 Q8WYR4-2
RSPH1ENST00000493019.1 linkuse as main transcriptn.2495+7T>A splice_region_variant, intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.000746
AC:
109
AN:
146068
Hom.:
0
Cov.:
27
show subpopulations
Gnomad AFR
AF:
0.00272
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000698
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000199
AC:
50
AN:
251352
Hom.:
0
AF XY:
0.000133
AC XY:
18
AN XY:
135844
show subpopulations
Gnomad AFR exome
AF:
0.00295
Gnomad AMR exome
AF:
0.0000289
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000725
AC:
105
AN:
1448572
Hom.:
1
Cov.:
31
AF XY:
0.0000624
AC XY:
45
AN XY:
721334
show subpopulations
Gnomad4 AFR exome
AF:
0.00292
Gnomad4 AMR exome
AF:
0.0000224
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:
9.09e-7
Gnomad4 OTH exome
AF:
0.000100
GnomAD4 genome
AF:
0.000746
AC:
109
AN:
146186
Hom.:
0
Cov.:
27
AF XY:
0.000719
AC XY:
51
AN XY:
70884
show subpopulations
Gnomad4 AFR
AF:
0.00271
Gnomad4 AMR
AF:
0.0000697
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000281
Hom.:
0
Bravo
AF:
0.000854

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia 24 Benign:1
Likely benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesJan 31, 2022- -
Primary ciliary dyskinesia Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 08, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
0.19
DANN
Benign
0.40

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000015
dbscSNV1_RF
Benign
0.0
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: rs116369489; hg19: chr21-43896001; API