12-131929270-C-G

Variant names:

• chr12-131929270-C-G
• rs551126678
• ENST00000443358.6:c.-121C>G

Variant summary

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

The ENST00000443358.6(PUS1):​c.-121C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: 30)
• Consequence: PUS1 ENST00000443358.6 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0180
• Publications: 0 publications found

Genes affected

PUS1 (HGNC:15508): (pseudouridine synthase 1) This gene encodes a pseudouridine synthase that converts uridine to pseudouridine once it has been incorporated into an RNA molecule. The encoded enzyme may play an essential role in tRNA function and in stabilizing the secondary and tertiary structure of many RNAs. A mutation in this gene has been linked to mitochondrial myopathy and sideroblastic anemia. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Sep 2009]

PUS1-AS1 (HGNC:40706): (PUS1 antisense RNA 1)

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=-1.03).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000443358.6. 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
	PUS1	NM_025215.6	MANE Select	c.-453C>G		upstream_gene	N/A	NP_079491.2	E5KMT5
	PUS1	NM_001002019.3		c.-145C>G		upstream_gene	N/A	NP_001002019.1	E5KMT6
	PUS1	NM_001002020.3		c.-121C>G		upstream_gene	N/A	NP_001002020.1	E5KMT6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PUS1	ENST00000443358.6	TSL:1	c.-121C>G		5_prime_UTR	Exon 1 of 6	ENSP00000392451.2	Q9Y606-2
	PUS1	ENST00000322060.9	TSL:5	c.-26C>G		5_prime_UTR	Exon 1 of 5	ENSP00000324726.5	G8JLB3
	PUS1	ENST00000917732.1		c.-453C>G		5_prime_UTR	Exon 1 of 5	ENSP00000587791.1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 30

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	8.7
DANN	Benign	0.86
PhyloP100		-0.018
PromoterAI		-0.049	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: rs551126678; hg19: chr12-132413815;