19-45804434-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_030785.4(RSPH6A):​c.1471G>A​(p.Ala491Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000223 in 1,614,004 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

RSPH6A
NM_030785.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.57
Variant links:
Genes affected
RSPH6A (HGNC:14241): (radial spoke head 6 homolog A) The protein encoded by this gene is similar to a sea urchin radial spoke head protein. Radial spoke protein complexes form part of the axoneme of eukaryotic flagella and are located between the axoneme's outer ring of doublet microtubules and central pair of microtubules. In Chlamydomonas, radial spoke proteins are thought to regulate the activity of dynein and the symmetry of flagellar bending patterns. This gene maps to a region of chromosome 19 that is linked to primary ciliary dyskinesia-2 (CILD2). [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.4238529).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RSPH6ANM_030785.4 linkc.1471G>A p.Ala491Thr missense_variant Exon 3 of 6 ENST00000221538.8 NP_110412.1 Q9H0K4
RSPH6AXM_011527351.3 linkc.1471G>A p.Ala491Thr missense_variant Exon 3 of 6 XP_011525653.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RSPH6AENST00000221538.8 linkc.1471G>A p.Ala491Thr missense_variant Exon 3 of 6 1 NM_030785.4 ENSP00000221538.2 Q9H0K4
RSPH6AENST00000597055.1 linkc.1471G>A p.Ala491Thr missense_variant Exon 3 of 6 1 ENSP00000472630.1 M0R2K1
RSPH6AENST00000600188.5 linkc.679G>A p.Ala227Thr missense_variant Exon 2 of 5 2 ENSP00000471559.1 M0R103

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251180
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135818
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1461852
Hom.:
0
Cov.:
32
AF XY:
0.0000248
AC XY:
18
AN XY:
727222
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
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:
0.0000386
Hom.:
0
Bravo
AF:
0.0000416

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 29, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1471G>A (p.A491T) alteration is located in exon 3 (coding exon 3) of the RSPH6A gene. This alteration results from a G to A substitution at nucleotide position 1471, causing the alanine (A) at amino acid position 491 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.044
T;.;T
Eigen
Benign
0.086
Eigen_PC
Benign
0.064
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.84
T;D;D
M_CAP
Benign
0.0094
T
MetaRNN
Benign
0.42
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L;.;.
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-1.6
N;.;.
REVEL
Benign
0.11
Sift
Benign
0.27
T;.;.
Sift4G
Benign
0.14
T;T;T
Polyphen
0.90
P;.;.
Vest4
0.18
MutPred
0.75
Gain of glycosylation at A491 (P = 0.014);.;Gain of glycosylation at A491 (P = 0.014);
MVP
0.16
MPC
0.10
ClinPred
0.56
D
GERP RS
2.7
Varity_R
0.13
gMVP
0.64

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: rs1259321714; hg19: chr19-46307692; API