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12-120504087-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_032314.4(COQ5):c.771-6G>A 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 0.0000117 in 1,538,074 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 1 hom. )

Consequence

COQ5
NM_032314.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00007209
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.763
Variant links:
Genes affected
COQ5 (HGNC:28722): (coenzyme Q5, methyltransferase) Enables 2-octaprenyl-6-methoxy-1,4-benzoquinone methylase activity. Involved in methylation and ubiquinone biosynthetic process. Located in mitochondrial matrix. Part of protein-containing complex. Colocalizes with mitochondrial inner membrane. Implicated in primary coenzyme Q10 deficiency 9. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BP6
Variant 12-120504087-C-T is Benign according to our data. Variant chr12-120504087-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 742153.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr12-120504087-C-T is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COQ5NM_032314.4 linkuse as main transcriptc.771-6G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000288532.11
COQ5XM_006719639.3 linkuse as main transcriptc.528-6G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COQ5ENST00000288532.11 linkuse as main transcriptc.771-6G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_032314.4 P1
COQ5ENST00000445328.6 linkuse as main transcriptc.549-6G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 2
COQ5ENST00000552443.5 linkuse as main transcriptc.528-6G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152106
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
17
AN:
1385968
Hom.:
1
Cov.:
23
AF XY:
0.00000865
AC XY:
6
AN XY:
694036
show subpopulations
Gnomad4 AFR exome
AF:
0.0000939
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000383
Gnomad4 OTH exome
AF:
0.000138
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152106
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74296
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeMay 02, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
Cadd
Benign
12
Dann
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000072
dbscSNV1_RF
Benign
0.0020
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.28
Position offset: -24

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: rs1351013751; hg19: chr12-120941890; API