chr11-14878140-G-C

Variant names:

• chr11-14878140-G-C
• NM_024514.5:c.1488C>G

Variant summary

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

The NM_024514.5(CYP2R1):​c.1488C>G​(p.Ile496Met) 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CYP2R1 NM_024514.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.43
• Publications: 0 publications found

Genes affected

CYP2R1 (HGNC:20580): (cytochrome P450 family 2 subfamily R 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 microsomal vitamin D hydroxylase that converts vitamin D into the active ligand for the vitamin D receptor. A mutation in this gene has been associated with selective 25-hydroxyvitamin D deficiency. [provided by RefSeq, Jul 2008]

PDE3B (HGNC:8779): (phosphodiesterase 3B) Enables 3',5'-cyclic-nucleotide phosphodiesterase activity. Involved in negative regulation of angiogenesis; negative regulation of cell adhesion; and negative regulation of lipid catabolic process. Located in membrane. Part of guanyl-nucleotide exchange factor complex. [provided by Alliance of Genome Resources, Apr 2022]

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=0.32434943).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024514.5. 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
	CYP2R1	NM_024514.5	MANE Select	c.1488C>G	p.Ile496Met	missense	Exon 5 of 5	NP_078790.2
	CYP2R1	NM_001400568.1		c.1443C>G	p.Ile481Met	missense	Exon 5 of 5	NP_001387497.1
	CYP2R1	NM_001400567.1		c.1344C>G	p.Ile448Met	missense	Exon 6 of 6	NP_001387496.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP2R1	ENST00000334636.10	TSL:1 MANE Select	c.1488C>G	p.Ile496Met	missense	Exon 5 of 5	ENSP00000334592.5	Q6VVX0
	CYP2R1	ENST00000530609.5	TSL:1	n.*1084C>G		non_coding_transcript_exon	Exon 5 of 5	ENSP00000466060.1	E9PS56
	CYP2R1	ENST00000532805.1	TSL:5	n.*596C>G		non_coding_transcript_exon	Exon 4 of 4	ENSP00000465097.1	E9PS56

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Vitamin D hydroxylation-deficient rickets, type 1B (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Uncertain	0.090	D
BayesDel_noAF	Benign	-0.11
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.13	T
Eigen	Benign	-0.10
Eigen_PC	Benign	0.057
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.72	T
M_CAP	Benign	0.053	D
MetaRNN	Benign	0.32	T
MetaSVM	Benign	-0.48	T
MutationAssessor	Benign	1.6	L
PhyloP100		1.4
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	-1.8	N
REVEL	Uncertain	0.39
Sift	Uncertain	0.0020	D
Sift4G	Benign	0.085	T
Polyphen		0.014	B
Vest4		0.34
MutPred		0.75		Gain of disorder (P = 0.0057)
MVP		0.77
MPC		0.45
ClinPred		0.90	D
GERP RS		4.8
Varity_R		0.79
gMVP		0.90
Mutation Taster		=50/50

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

hg19: chr11-14899686;