chr5-149366111-C-A

Variant names:

• chr5-149366111-C-A
• rs781476857
• NM_024028.4:c.640C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001301057.2(PCYOX1L):​c.420-8C>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,420 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PCYOX1L NM_001301057.2 splice_region, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.21
• Publications: 1 publications found

Genes affected

PCYOX1L (HGNC:28477): (prenylcysteine oxidase 1 like) Predicted to enable prenylcysteine oxidase activity. Predicted to be involved in prenylated protein catabolic process. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.31).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001301057.2. 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
	PCYOX1L	NM_024028.4	MANE Select	c.640C>A	p.Arg214Arg	synonymous	Exon 4 of 6	NP_076933.3
	PCYOX1L	NM_001301054.2		c.589C>A	p.Arg197Arg	synonymous	Exon 4 of 6	NP_001287983.1
	PCYOX1L	NM_001301057.2		c.420-8C>A		splice_region intron	N/A	NP_001287986.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCYOX1L	ENST00000274569.9	TSL:2 MANE Select	c.640C>A	p.Arg214Arg	synonymous	Exon 4 of 6	ENSP00000274569.4	Q8NBM8-1
	PCYOX1L	ENST00000507621.1	TSL:1	n.3043C>A		non_coding_transcript_exon	Exon 1 of 3
	PCYOX1L	ENST00000511945.5	TSL:1	n.*407C>A		non_coding_transcript_exon	Exon 4 of 6	ENSP00000426091.1	Q8NBM8-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000399 AC: 1 AN: 250446 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461420 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727020

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86244

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53138

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5634

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111994

Other (OTH) AF: 0.00 AC: 0 AN: 60380

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.31
CADD	Benign	13
DANN	Benign	0.94
PhyloP100		1.2

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs781476857; hg19: chr5-148745674;