rs2286965

Variant names:

• chr2-72133031-C-A
• rs2286965
• NM_019885.4:c.1138G>T

Your query was ambiguous. Multiple possible variants found:

• chr2-72133031-C-A
• chr2-72133031-C-G
• chr2-72133031-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_019885.4(CYP26B1):​c.1138G>T​(p.Glu380*) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CYP26B1 NM_019885.4 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.15
• Publications: 0 publications found

Genes affected

CYP26B1 (HGNC:20581): (cytochrome P450 family 26 subfamily B member 1) This gene encodes a member of the cytochrome P450 superfamily. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. The encoded protein is localized to the endoplasmic reticulum, and functions as a critical regulator of all-trans retinoic acid levels by the specific inactivation of all-trans retinoic acid to hydroxylated forms. Mutations in this gene are associated with radiohumeral fusions and other skeletal and craniofacial anomalies, and increased levels of the encoded protein are associated with atherosclerotic lesions. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2013]

CYP26B1 Gene-Disease associations (from GenCC):

• lethal occipital encephalocele-skeletal dysplasia syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, PanelApp Australia

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CYP26B1	NM_019885.4	c.1138G>T	p.Glu380*	stop_gained	Exon 5 of 6	ENST00000001146.7	NP_063938.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CYP26B1	ENST00000001146.7	c.1138G>T	p.Glu380*	stop_gained	Exon 5 of 6	1	NM_019885.4	ENSP00000001146.2
CYP26B1	ENST00000546307.5	c.913G>T	p.Glu305*	stop_gained	Exon 4 of 5	1		ENSP00000443304.1
CYP26B1	ENST00000412253.1	c.565G>T	p.Glu189*	stop_gained	Exon 4 of 5	1		ENSP00000401465.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.57	D
BayesDel_noAF	Pathogenic	0.59
CADD	Pathogenic	43
DANN	Uncertain	1.0
Eigen	Pathogenic	0.99
Eigen_PC	Pathogenic	0.79
FATHMM_MKL	Pathogenic	0.97	D
PhyloP100		6.2
Vest4		0.98
GERP RS		5.1
Mutation Taster		=4/196	disease causing

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: rs2286965; hg19: chr2-72360160;