chr2-231206193-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001352754.2(ARMC9):​c.-41-5T>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0037 in 1,558,698 control chromosomes in the GnomAD database, including 173 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 Benign (★★).

Frequency

Genomes: 𝑓 0.020 ( 103 hom., cov: 32)
Exomes 𝑓: 0.0020 ( 70 hom. )

Consequence

ARMC9
NM_001352754.2 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0002805
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.49
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant 2-231206193-T-C is Benign according to our data. Variant chr2-231206193-T-C is described in ClinVar as [Benign]. Clinvar id is 1226717.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0673 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARMC9NM_001352754.2 linkuse as main transcriptc.-41-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000611582.5 NP_001339683.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARMC9ENST00000611582.5 linkuse as main transcriptc.-41-5T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 NM_001352754.2 ENSP00000484804 P1Q7Z3E5-1

Frequencies

GnomAD3 genomes
AF:
0.0197
AC:
2992
AN:
152196
Hom.:
101
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0694
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00530
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.0120
GnomAD3 exomes
AF:
0.00526
AC:
1313
AN:
249504
Hom.:
39
AF XY:
0.00384
AC XY:
518
AN XY:
135044
show subpopulations
Gnomad AFR exome
AF:
0.0729
Gnomad AMR exome
AF:
0.00344
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000662
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.00214
GnomAD4 exome
AF:
0.00197
AC:
2765
AN:
1406384
Hom.:
70
Cov.:
24
AF XY:
0.00168
AC XY:
1179
AN XY:
703044
show subpopulations
Gnomad4 AFR exome
AF:
0.0700
Gnomad4 AMR exome
AF:
0.00366
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000106
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000791
Gnomad4 OTH exome
AF:
0.00427
GnomAD4 genome
AF:
0.0197
AC:
3000
AN:
152314
Hom.:
103
Cov.:
32
AF XY:
0.0189
AC XY:
1405
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.0694
Gnomad4 AMR
AF:
0.00529
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.0118
Alfa
AF:
0.00775
Hom.:
9
Bravo
AF:
0.0221
Asia WGS
AF:
0.00318
AC:
11
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMay 04, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
12
DANN
Benign
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00028
dbscSNV1_RF
Benign
0.0060
SpliceAI score (max)
0.17
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: rs74651652; hg19: chr2-232070906; API