1-59901040-C-A

Variant names:

• chr1-59901040-C-A
• NM_000775.4:c.1255G>T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_000775.4(CYP2J2):​c.1255G>T​(p.Asp419Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CYP2J2 NM_000775.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.161

Genes affected

CYP2J2 (HGNC:2634): (cytochrome P450 family 2 subfamily J member 2) 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 is thought to be the predominant enzyme responsible for epoxidation of endogenous arachidonic acid in cardiac tissue. Multiple transcript variants have been found for this gene. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.32448837).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CYP2J2	NM_000775.4	c.1255G>T	p.Asp419Tyr	missense_variant	Exon 8 of 9	ENST00000371204.4	NP_000766.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CYP2J2	ENST00000371204.4	c.1255G>T	p.Asp419Tyr	missense_variant	Exon 8 of 9	1	NM_000775.4	ENSP00000360247.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461844 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727224

Gnomad4 AFR exome AF: 0.00

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1255G>T (p.D419Y) alteration is located in exon 8 (coding exon 8) of the CYP2J2 gene. This alteration results from a G to T substitution at nucleotide position 1255, causing the aspartic acid (D) at amino acid position 419 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.094	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	19
DANN	Benign	0.91
DEOGEN2	Uncertain	0.44	T
Eigen	Benign	-0.58
Eigen_PC	Benign	-0.63
FATHMM_MKL	Benign	0.14	N
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.038	D
MetaRNN	Benign	0.32	T
MetaSVM	Benign	-0.78	T
MutationAssessor	Uncertain	2.0	M
PrimateAI	Benign	0.36	T
PROVEAN	Pathogenic	-4.8	D
REVEL	Benign	0.054
Sift	Benign	0.094	T
Sift4G	Benign	0.38	T
Polyphen		0.089	B
Vest4		0.44
MutPred		0.45		Loss of disorder (P = 0.0276);
MVP		0.70
MPC		0.30
ClinPred		0.48	T
GERP RS		2.7
Varity_R		0.25
gMVP		0.81

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-60366712;