CYP11B2

Chr 8

cytochrome P450 family 11 subfamily B member 2

Also known as: ALDOS, CPN2, CYP11B, CYP11BL, CYPXIB2, P-450C18, P450C18, P450aldo

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 mitochondrial inner membrane. The enzyme has steroid 18-hydroxylase activity to synthesize aldosterone and 18-oxocortisol as well as steroid 11 beta-hydroxylase activity. Mutations in this gene cause corticosterone methyl oxidase deficiency. [provided by RefSeq, Jul 2008]

GeneReviewsResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtCorticosterone methyloxidase 1 deficiency
UniProtCorticosterone methyloxidase 2 deficiency

Clinical highlights

Gene-disease validity (ClinGen)
familial hyperreninemic hypoaldosteronism type 2 · ARDefinitivesufficient evidence for diagnostic panels
10
Active trials
148
Pubs (1 yr)
P/LP submissions
P/LP missense
1.57
LOEUF
DN
Mechanism· predicted
📖
GeneReview available — CYP11B2
Authoritative clinical overview · Recommended first read
Open GeneReview ↗
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.57LOEUF
pLI 0.000
Z-score -0.60
OE 1.13 (0.831.57)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
-0.85Z-score
OE missense 1.14 (1.041.25)
330 obs / 289.4 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?1.13 (0.831.57)
00.351.4
Missense OE?1.14 (1.041.25)
00.61.4
Synonymous OE?1.14
01.21.6
LoF obs/exp: 26 / 22.9Missense obs/exp: 330 / 289.4Syn Z: -1.18

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

CYP11B2 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

Primary Aldosteronism

Baxdrostat and Molecular Imaging of Adrenal Cytoreduction in Primary Aldosteronism

NOT YET RECRUITING
NCT07800858Phase NAQueen Mary University of LondonStarted 2026-09-15
baxdrostat
Primary AldosteronismAdrenal Cushing SyndromePheochromocytoma

Postmortem Evaluation of Adrenal and Other Endocrine Tumors in Patients With Sudden Death

ACTIVE NOT RECRUITING
NCT05446779Helsinki University Central HospitalStarted 2022-02-03
Adrenal aldosterone synthase (CYP11B2) stainingAdrenal cortisol synthase (CYP11B1) stainingHistopathological analysis
Primary Aldosteronism

Pathological Type,Gene Mutation and Clinical Characteristics of Unilateral Primary Aldosteronism

RECRUITING
NCT06597630Qifu LiStarted 2023-12-01
Tissue specimens were stained by histopathology of hematoxylin-eosin
Uncontrolled Hypertension

A Phase I Trial of QLS1410 in Healthy Chinese Adults and Participants With Mild Essential Hypertension

NOT YET RECRUITING
NCT07152444Phase PHASE1Qilu Pharmaceutical Co., Ltd.Started 2025-09
QLS1410 (CYP11B2 inhibitor)placebo
Breast Cancer and Pregnancy

Registry Study of Pregnancy and Breast Cancer

ACTIVE NOT RECRUITING
NCT04603820Spanish Breast Cancer Research GroupStarted 2019-11-18
Primary Aldosteronism

[11C]Metomidate PET-CT vs Usual Care for People With Primary Aldosteronism: a Proof-of-concept Study

NOT YET RECRUITING
NCT07814105Phase NAChinese University of Hong KongStarted 2026-10-01
[11C] Metomidate PETCTAdrenal Venous Sampling
Primary AldosteronismSecondary HypertensionAldosterone-Producing Adenoma

PETAL Trial: Impact of Gallium-68 Pentixafor PET-CT on Surgical Outcomes in Primary Aldosteronism

RECRUITING
NCT07027254Phase NASeoul National University HospitalStarted 2025-06-25
68Ga-pentixafor PET/CT
HypertensionAldosteronemiaCYP11B1

Decode the Environment Variation of Targeted Aldosterone Inducer and siLencer

NOT YET RECRUITING
NCT07748975Phase NADejthidaNathaphongStarted 2026-08-10
Aldosterone circulationMedicationOperation
Primary Aldosteronism

Subtyping Primary Aldosteronism With Para-chloro-2-[18F]Fluoroethyl-etomidate

RECRUITING
NCT06616142Phase PHASE1, PHASE2University Medical Center GroningenStarted 2024-11-06
[18F]CETO tracerDexamethasone oralAdrenal vein sampling
Hyperaldosteronism Primary

Is the Evolution of the Aldosterone-renin Ratio Pre- Versus Post-operative on Day 1 Following Unilateral Adrenalectomy for Primary Hyperaldosteronism Predictive of Blood Pressure Outcomes

NOT YET RECRUITING
NCT07110155Central Hospital, Nancy, FranceStarted 2025-08-15