Reactome: A Curated Pathway Database
THIS SITE IS USED FOR CURATION AND TESTING
IT IS NOT STABLE, IS LINKED TO AN INCOMPLETE DATA SET, AND IS NOT MONITORED FOR PERFORMANCE. WE STRONGLY RECOMMEND THE USE OF OUR PUBLIC SITE

Query author contributions in Reactome

Reactome depends on collaboration between our curation team and outside experts to assemble and peer-review its pathway modules. The integration of ORCID within Reactome enables us to meet a key challenge with authoring, curating and reviewing biological information by incentivizing and crediting the external experts that contribute their expertise and time to the Reactome curation process. More information is available at ORCID and Reactome.

If you have an ORCID ID that is not listed on this page, please forward this information to us and we will update your Reactome pathway records.

Name Email address

Details on Person CYP51A1 demethylates LAN

Class:IdReaction:194678
_displayNameCYP51A1 demethylates LAN
_doReleaseTRUE
_timestamp2025-10-22 21:36:30
authored[InstanceEdit:350358] Jassal, Bijay, 2008-05-19
catalystActivity[CatalystActivity:194693] oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen of CYP51A1 [endoplasmic reticulum membrane]
compartment[Compartment:70101] cytosol
[Compartment:12045] endoplasmic reticulum membrane
created[InstanceEdit:194683] D'Eustachio, P, 2007-03-22 16:07:19
crossReference[DatabaseIdentifier:9907888] RHEA:25287
edited[InstanceEdit:196418] D'Eustachio, P, 2007-04-21 18:31:40
input[SimpleEntity:194634] LAN [endoplasmic reticulum membrane]
[SimpleEntity:70106] H+ [cytosol]
[SimpleEntity:70106] H+ [cytosol]
[SimpleEntity:70106] H+ [cytosol]
[SimpleEntity:29364] NADPH [cytosol]
[SimpleEntity:29364] NADPH [cytosol]
[SimpleEntity:29364] NADPH [cytosol]
[SimpleEntity:29368] O2 [cytosol]
[SimpleEntity:29368] O2 [cytosol]
[SimpleEntity:29368] O2 [cytosol]
literatureReference[LiteratureReference:194658] The ubiquitously expressed human CYP51 encodes lanosterol 14 alpha-demethylase, a cytochrome P450 whose expression is regulated by oxysterols
[LiteratureReference:5602275] Structural basis of human CYP51 inhibition by antifungal azoles
modified[InstanceEdit:195713] D'Eustachio, P, 2007-04-13 17:54:25
[InstanceEdit:196422] D'Eustachio, P, 2007-04-21 18:35:08
[InstanceEdit:197014] Gopinathrao, G, 2007-04-30 12:01:02
[InstanceEdit:350661] Jassal, Bijay, 2008-05-20
[InstanceEdit:351778] Jassal, Bijay, 2008-05-28
[InstanceEdit:1043153] Wu, G, 2010-11-19
[InstanceEdit:5602279] Jassal, Bijay, 2014-06-23
[InstanceEdit:9830342] Matthews, Lisa, 2023-03-08
[InstanceEdit:9907889] D'Eustachio, Peter, 2024-04-17
[InstanceEdit:9945226] D'Eustachio, Peter, 2025-04-11
[InstanceEdit:9969571] D'Eustachio, Peter, 2025-10-22
nameCYP51A1 demethylates LAN
lanosterol + 3 O2 + 3 reduced (NADPH--hemoprotein reductase) => 4,4-dimethyl-5alpha-cholesta-8,14,24-trien-3beta-ol + formate + 4 H(+) + 4 H2O + 3 oxidized (NADPH--hemoprotein reductase)
lanosterol + 3 NADPH + 3 H+ + 3 O2 => 4,4-dimethylcholesta-8(9),14,24-trien-3beta-ol + 3 NADP+ + 4 H2O + formate
output[SimpleEntity:194644] 4,4DMCHtOL [endoplasmic reticulum membrane]
[SimpleEntity:29460] HCOOH [cytosol]
[SimpleEntity:29356] H2O [cytosol]
[SimpleEntity:29356] H2O [cytosol]
[SimpleEntity:29356] H2O [cytosol]
[SimpleEntity:29356] H2O [cytosol]
[SimpleEntity:29366] NADP+ [cytosol]
[SimpleEntity:29366] NADP+ [cytosol]
[SimpleEntity:29366] NADP+ [cytosol]
precedingEvent
releaseDate2007-02-20
reviewed[InstanceEdit:351775] D'Eustachio, P, 2008-05-28 08:30:54
reviewStatus[ReviewStatus:9821382] five stars
revised[InstanceEdit:5602271] Jassal, Bijay, 2014-06-23
species[Species:48887] Homo sapiens
stableIdentifier[StableIdentifier:360595] R-HSA-194678.5
summation[Summation:194660] Lanosterol 14-alpha demethylase (CYP51A1) catalyses oxidativ...
(hasEvent)[Pathway:211976] Endogenous sterols [Homo sapiens]
[Pathway:6807047] Cholesterol biosynthesis via desmosterol (Bloch pathway) [Homo sapiens]
(precedingEvent)[Reaction:194641] 4,4-dimethylcholesta-8(9),24-dien-3beta-ol is oxidized to 4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol [Homo sapiens]
[Reaction:194674] 4,4-dimethylcholesta-8(9),14,24-trien-3beta-ol is reduced to 4,4-dimethylcholesta-8(9),24-dien-3beta-ol [LBR] [Homo sapiens]
[Reaction:194698] 4,4-dimethylcholesta-8(9),14,24-trien-3beta-ol is reduced to 4,4-dimethylcholesta-8(9),24-dien-3beta-ol [TM7SF2] [Homo sapiens]
(updatedInstance)[_UpdateTracker:9786284] Update Tracker - [Reaction:194678] CYP51A1 demethylates LNSOL - v50:[addLiteratureReference, modifyText]
[_UpdateTracker:9971812] Update Tracker - [Reaction:194678] CYP51A1 demethylates LAN - v95:[modifyText]
[Change default viewing format]
No pathways have been reviewed or authored by CYP51A1 demethylates LAN (194678)