2-231206251-C-G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_001352754.2(ARMC9):​c.13C>G​(p.Leu5Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000496 in 1,613,800 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L5M) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

ARMC9
NM_001352754.2 missense

Scores

5
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.768

Publications

1 publications found
Variant links:
Genes affected
ARMC9 (HGNC:20730): (armadillo repeat containing 9) Predicted to be involved in cilium assembly and positive regulation of smoothened signaling pathway. Located in centriole and ciliary basal body. Implicated in Joubert syndrome 30. [provided by Alliance of Genome Resources, Apr 2022]
ARMC9 Gene-Disease associations (from GenCC):
  • Joubert syndrome 30
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
  • Joubert syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.022940487).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000335 (51/152268) while in subpopulation AFR AF = 0.00118 (49/41546). AF 95% confidence interval is 0.000916. There are 0 homozygotes in GnomAd4. There are 21 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001352754.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ARMC9
NM_001352754.2
MANE Select
c.13C>Gp.Leu5Val
missense
Exon 2 of 25NP_001339683.2Q7Z3E5-1
ARMC9
NM_001271466.4
c.13C>Gp.Leu5Val
missense
Exon 2 of 25NP_001258395.2Q7Z3E5-1
ARMC9
NM_001291656.2
c.13C>Gp.Leu5Val
missense
Exon 2 of 21NP_001278585.2A0A2Q3DP09

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ARMC9
ENST00000611582.5
TSL:5 MANE Select
c.13C>Gp.Leu5Val
missense
Exon 2 of 25ENSP00000484804.1Q7Z3E5-1
ARMC9
ENST00000349938.8
TSL:1
c.13C>Gp.Leu5Val
missense
Exon 2 of 21ENSP00000258417.5A0A2Q3DP09
ARMC9
ENST00000958134.1
c.13C>Gp.Leu5Val
missense
Exon 2 of 26ENSP00000628193.1

Frequencies

GnomAD3 genomes
AF:
0.000335
AC:
51
AN:
152150
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00118
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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
GnomAD2 exomes
AF:
0.0000716
AC:
18
AN:
251308
AF XY:
0.0000736
show subpopulations
Gnomad AFR exome
AF:
0.00105
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000198
AC:
29
AN:
1461532
Hom.:
0
Cov.:
30
AF XY:
0.0000248
AC XY:
18
AN XY:
727104
show subpopulations
African (AFR)
AF:
0.000717
AC:
24
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.000347
AC:
2
AN:
5766
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111718
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.435
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000335
AC:
51
AN:
152268
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.00118
AC:
49
AN:
41546
American (AMR)
AF:
0.000131
AC:
2
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
3
6
9
12
15
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:
0.00
Hom.:
0
Bravo
AF:
0.000253
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000115
AC:
14

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.080
T
Eigen
Benign
-0.0011
Eigen_PC
Benign
-0.0087
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.023
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Uncertain
2.7
M
PhyloP100
0.77
PrimateAI
Uncertain
0.63
T
PROVEAN
Benign
-0.92
N
REVEL
Benign
0.081
Sift
Benign
0.18
T
Sift4G
Benign
0.49
T
Polyphen
0.86
P
Vest4
0.49
MVP
0.33
MPC
0.31
ClinPred
0.048
T
GERP RS
2.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.094
gMVP
0.43
Mutation Taster
=80/20
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

Other links and lift over

dbSNP: rs376958829; hg19: chr2-232070964; API