Genetic Variant NM_152732.5:c.481A>C (chr6-43655649-A-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_152732.5(RSPH9):c.481A>C(p.Lys161Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K161E) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RSPH9
NM_152732.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.90

Publications

0 publications found

Variant links:

Genes affected

RSPH9 (HGNC:21057): (radial spoke head component 9) This gene encodes a protein thought to be a component of the radial spoke head in motile cilia and flagella. Mutations in this gene are associated with primary ciliary dyskinesia 12. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Jul 2010]

RSPH9 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 12
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

RSPH9 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152732.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
RSPH9	NM_152732.5	MANE Select	c.481A>C	p.Lys161Gln	missense	Exon 3 of 5	NP_689945.2
RSPH9	NM_001424119.1		c.481A>C	p.Lys161Gln	missense	Exon 3 of 6	NP_001411048.1
RSPH9	NM_001193341.2		c.436A>C	p.Lys146Gln	missense	Exon 3 of 6	NP_001180270.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RSPH9	ENST00000372163.5	TSL:1 MANE Select	c.481A>C	p.Lys161Gln	missense	Exon 3 of 5	ENSP00000361236.4
	RSPH9	ENST00000372165.8	TSL:2	c.436A>C	p.Lys146Gln	missense	Exon 3 of 6	ENSP00000361238.4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727248

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

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:

1112012

Other (OTH)

AF:

0.00

AC:

AN:

60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

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 v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.076

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

Eigen

Uncertain

0.23

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.014

MetaRNN

Uncertain

0.49

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.4

PhyloP100

4.9

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.18

Sift

Benign

0.049

Sift4G

Benign

0.086

Polyphen

0.97

Vest4

0.62

MutPred

0.49

Loss of methylation at K161 (P = 0.0067)

MVP

0.65

MPC

0.31

ClinPred

0.97

GERP RS

4.3

Varity_R

0.19

gMVP

0.71

Mutation Taster

=84/16

polymorphism

(source)

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over