4-107947427-C-T

Variant names:

• chr4-107947427-C-T
• rs1374309961
• NM_183075.3:c.1178C>T
• CYP2U1 p.Ser393Phe

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_183075.3(CYP2U1):​c.1178C>T​(p.Ser393Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CYP2U1 NM_183075.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 5.86
• Publications: 0 publications found

Genes affected

CYP2U1 (HGNC:20582): (cytochrome P450 family 2 subfamily U member 1) 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 enzyme is a hydroxylase that metabolizes arachidonic acid, docosahexaenoic acid, and other long chain fatty acids. [provided by RefSeq, Jul 2008]

CYP2U1-AS1 (HGNC:54817): (CYP2U1 and SGMS2 antisense RNA 1)

LOC107986298 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.846

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_183075.3. 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
	CYP2U1	NM_183075.3	MANE Select	c.1178C>T	p.Ser393Phe	missense	Exon 3 of 5	NP_898898.1	Q7Z449-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP2U1	ENST00000332884.11	TSL:1 MANE Select	c.1178C>T	p.Ser393Phe	missense	Exon 3 of 5	ENSP00000333212.6	Q7Z449-1
	CYP2U1	ENST00000508453.1	TSL:1	c.551C>T	p.Ser184Phe	missense	Exon 5 of 7	ENSP00000423667.1	E9PGH5
	CYP2U1	ENST00000908818.1		c.788C>T	p.Ser263Phe	missense	Exon 3 of 5	ENSP00000578877.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	1	-	Spastic paraplegia (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.28
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.070
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.35	T
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.82	T
M_CAP	Uncertain	0.26	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Uncertain	0.48	D
MutationAssessor	Pathogenic	3.1	M
PhyloP100		5.9
PrimateAI	Uncertain	0.51	T
PROVEAN	Pathogenic	-5.3	D
REVEL	Uncertain	0.57
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Varity_R		0.86
gMVP		0.87
Mutation Taster		=19/81	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.15		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs1374309961;

hg19: chr4-108868583;