chr19-15879621-C-A

Variant names:

• chr19-15879621-C-A
• rs2108622
• NM_001082.5:c.1297G>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001082.5(CYP4F2):​c.1297G>T​(p.Val433Leu) variant causes a missense 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. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V433M) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: CYP4F2 NM_001082.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.68
• Publications: 0 publications found

Genes affected

CYP4F2 (HGNC:2645): (cytochrome P450 family 4 subfamily F 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. The enzyme starts the process of inactivating and degrading leukotriene B4, a potent mediator of inflammation. This gene is part of a cluster of cytochrome P450 genes on chromosome 19. Another member of this family, CYP4F11, is approximately 16 kb away. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3594392).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001082.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP4F2	NM_001082.5	MANE Select	c.1297G>T	p.Val433Leu	missense	Exon 11 of 13	NP_001073.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP4F2	ENST00000221700.11	TSL:1 MANE Select	c.1297G>T	p.Val433Leu	missense	Exon 11 of 13	ENSP00000221700.3
	CYP4F2	ENST00000011989.11	TSL:1	c.1297G>T	p.Val433Leu	missense	Exon 11 of 13	ENSP00000011989.8
	CYP4F2	ENST00000392846.7	TSL:2	n.1240G>T		non_coding_transcript_exon	Exon 9 of 11

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 41

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Benign	-0.025	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.078	T
Eigen	Benign	-0.16
Eigen_PC	Benign	-0.20
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.36	T
MetaSVM	Benign	-0.58	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		1.7
PrimateAI	Benign	0.44	T
PROVEAN	Uncertain	-2.7	D
REVEL	Benign	0.14
Sift	Benign	0.040	D
Sift4G	Uncertain	0.055	T
Polyphen		0.54	P
Vest4		0.12
MutPred		0.44		Gain of relative solvent accessibility (P = 0.2751)
MVP		0.71
MPC		0.25
ClinPred		0.97	D
GERP RS		1.7
Varity_R		0.43
gMVP		0.79
Mutation Taster		=89/11	polymorphism

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: rs2108622; hg19: chr19-15990431;