NM_016035.5:c.-20C>T

Variant names:

• chr9-128322839-C-T
• rs372363685
• NM_016035.5:c.-20C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_016035.5(COQ4):​c.-20C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000724 in 1,381,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: COQ4 NM_016035.5 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.56
• Publications: 1 publications found

Genes affected

COQ4 (HGNC:19693): (coenzyme Q4) This gene encodes a component of the coenzyme Q biosynthesis pathway. Coenzyme Q, an essential component of the electron transport chain, shuttles electrons between complexes I or II to complex III of the mitochondrial transport chain. This protein appears to play a structural role in stabilizing a complex that contains most of the coenzyme Q biosynthesis enzymes. Mutations in this gene are associated with mitochondrial disorders linked to coenzyme Q deficiency. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

TRUB2 (HGNC:17170): (TruB pseudouridine synthase family member 2) Pseudouridine is an abundant component of rRNAs and tRNAs and is enzymatically generated by isomerization of uridine by pseudouridine synthase (Zucchini et al., 2003 [PubMed 12736709]).[supplied by OMIM, Mar 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016035.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COQ4	NM_016035.5	MANE Select	c.-20C>T		5_prime_UTR	Exon 1 of 7	NP_057119.3	Q9Y3A0-1
	COQ4	NM_001305942.2		c.-20C>T		5_prime_UTR	Exon 1 of 4	NP_001292871.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COQ4	ENST00000300452.8	TSL:1 MANE Select	c.-20C>T		5_prime_UTR	Exon 1 of 7	ENSP00000300452.3	Q9Y3A0-1
	COQ4	ENST00000926106.1		c.-20C>T		5_prime_UTR	Exon 1 of 8	ENSP00000596165.1
	COQ4	ENST00000926105.1		c.-20C>T		5_prime_UTR	Exon 1 of 8	ENSP00000596164.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.24e-7 AC: 1 AN: 1381854 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 681896

African (AFR) AF: 0.00 AC: 0 AN: 30968

American (AMR) AF: 0.00 AC: 0 AN: 32520

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24480

East Asian (EAS) AF: 0.00 AC: 0 AN: 35656

South Asian (SAS) AF: 0.00 AC: 0 AN: 79146

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40826

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5638

European-Non Finnish (NFE) AF: 9.30e-7 AC: 1 AN: 1075316

Other (OTH) AF: 0.00 AC: 0 AN: 57304

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	7.1
DANN	Benign	0.88
PhyloP100		-1.6
PromoterAI		0.013	Neutral

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

Other links and lift over

dbSNP: rs372363685; hg19: chr9-131085118;