Genetic Variant RSPH1:p.His31Gln (chr21-42493041-G-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_080860.4(RSPH1):c.93C>G(p.His31Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. H31H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RSPH1
NM_080860.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.20

Publications

0 publications found

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]

RSPH1 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 24
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Ambry Genetics, PanelApp Australia, G2P, Labcorp Genetics (formerly Invitae)
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

RSPH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.78

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RSPH1	NM_080860.4 link	c.93C>G	p.His31Gln	missense_variant	Exon 2 of 9	ENST00000291536.8	NP_543136.1	Q8WYR4-1
RSPH1	XM_011529786.2 link	c.93C>G	p.His31Gln	missense_variant	Exon 2 of 8		XP_011528088.1
RSPH1	NM_001286506.2 link	c.55-178C>G		intron_variant	Intron 1 of 7		NP_001273435.1	Q8WYR4-2
RSPH1	XM_005261208.3 link	c.67+3079C>G		intron_variant	Intron 1 of 6		XP_005261265.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RSPH1	ENST00000291536.8 link	c.93C>G	p.His31Gln	missense_variant	Exon 2 of 9	1	NM_080860.4	ENSP00000291536.3	Q8WYR4-1
RSPH1	ENST00000493019.1 link	n.153C>G		non_coding_transcript_exon_variant	Exon 2 of 8	2
RSPH1	ENST00000398352.3 link	c.55-178C>G		intron_variant	Intron 1 of 7	5		ENSP00000381395.3	Q8WYR4-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461862

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111988

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.675

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.85

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Benign

-0.090

CADD

Benign

0.021

(source)

DANN

Benign

0.79

DEOGEN2

Uncertain

0.49

Eigen

Benign

-0.76

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.18

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.026

MetaRNN

Pathogenic

0.78

MetaSVM

Benign

-0.63

MutationAssessor

Benign

2.0

PhyloP100

-1.2

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-6.7

REVEL

Uncertain

0.36

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0030

Polyphen

1.0

Vest4

0.85

MutPred

0.37

Gain of helix (P = 0.062);

MVP

0.16

MPC

0.096

ClinPred

0.94

GERP RS

-6.2

Varity_R

0.69

gMVP

0.66

Mutation Taster

=55/45

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.42

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.42

Position offset: 38

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over