NM_000771.4:c.*155C>A

Variant names:

• chr10-94989183-C-A
• rs9332243
• NM_000771.4:c.*155C>A

Variant summary

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

The NM_000771.4(CYP2C9):​c.*155C>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000731 in 1,367,932 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: 32)
  • Exomes 𝑓: 7.3e-7 (0 hom.)
• Consequence: CYP2C9 NM_000771.4 3_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.71
• Publications: 0 publications found

Genes affected

CYP2C9 (HGNC:2623): (cytochrome P450 family 2 subfamily C member 9) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the endoplasmic reticulum and its expression is induced by rifampin. The enzyme is known to metabolize many xenobiotics, including phenytoin, tolbutamide, ibuprofen and S-warfarin. Studies identifying individuals who are poor metabolizers of phenytoin and tolbutamide suggest that this gene is polymorphic. The gene is located within a cluster of cytochrome P450 genes on chromosome 10q24. [provided by RefSeq, Jul 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=-0.91).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CYP2C9	NM_000771.4	c.*155C>A		3_prime_UTR_variant	Exon 9 of 9	ENST00000260682.8	NP_000762.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CYP2C9	ENST00000260682.8	c.*155C>A		3_prime_UTR_variant	Exon 9 of 9	1	NM_000771.4	ENSP00000260682.6
CYP2C9	ENST00000643112.1	n.*637C>A		non_coding_transcript_exon_variant	Exon 8 of 8			ENSP00000496202.1
CYP2C9	ENST00000643112.1	n.*637C>A		3_prime_UTR_variant	Exon 8 of 8			ENSP00000496202.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.31e-7 AC: 1 AN: 1367932 Hom.: 0 Cov.: 31 AF XY: 0.00000149 AC XY: 1 AN XY: 672984

African (AFR) AF: 0.00 AC: 0 AN: 31100

American (AMR) AF: 0.00 AC: 0 AN: 33380

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23000

East Asian (EAS) AF: 0.00 AC: 0 AN: 36822

South Asian (SAS) AF: 0.00 AC: 0 AN: 74570

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 38530

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3956

European-Non Finnish (NFE) AF: 9.35e-7 AC: 1 AN: 1069728

Other (OTH) AF: 0.00 AC: 0 AN: 56846

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.25
DANN	Benign	0.70
PhyloP100		-1.7

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: rs9332243; hg19: chr10-96748940;