Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
A [auth B]SCOP2 FamilyRibonucleotide reductase-like 8024653 4000846 SCOP2 (2022-06-29)
A [auth B]SCOP2 SuperfamilyFerritin-like 8037032 3001658 SCOP2 (2022-06-29)
B [auth D]SCOP2 FamilyRibonucleotide reductase-like 8024652 4000846 SCOP2 (2022-06-29)
B [auth D]SCOP2 SuperfamilyFerritin-like 8037031 3001658 SCOP2 (2022-06-29)
C [auth G]SCOP2 FamilyMethane monooxygenase hydrolase, gamma subunit 8024469 4000804 SCOP2 (2022-06-29)
C [auth G]SCOP2 SuperfamilyMethane monooxygenase hydrolase, gamma subunit 8036848 3001468 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth B]Phenol_Hydroxe1mhyB1 A: alpha bundlesX: Ferritin/Heme oxygenase/4-helical cytokinesH: Ferritin/Heme oxygenaseT: Heme oxygenase/Ribonucleotide reductaseF: Phenol_HydroxECOD (1.6)
B [auth D]Phenol_Hydroxe1mhyD1 A: alpha bundlesX: Ferritin/Heme oxygenase/4-helical cytokinesH: Ferritin/Heme oxygenaseT: Heme oxygenase/Ribonucleotide reductaseF: Phenol_HydroxECOD (1.6)
C [auth G]MeMO_Hyd_Ge1mhyG1 A: alpha arraysX: Methane monooxygenase hydrolase gamma subunit-likeH: Methane monooxygenase hydrolase gamma subunit (From Topology)T: Methane monooxygenase hydrolase gamma subunitF: MeMO_Hyd_GECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth B]PF02332Methane/Phenol/Alkene Hydroxylase (Phenol_Hydrox)Methane/Phenol/Alkene HydroxylaseThis protein family includes several components of multicomponent enzyme systems predominantly found in Proteobacteria and Actinobacteria, including subunits alpha and beta of a methane monooxygenase and an alkene monooxygenase system, small and larg ...This protein family includes several components of multicomponent enzyme systems predominantly found in Proteobacteria and Actinobacteria, including subunits alpha and beta of a methane monooxygenase and an alkene monooxygenase system, small and large subunits of propane 2-monooxygenase system and P1 protein of phenol hydroxylase [1-4].
Domain
B [auth D]PF02332Methane/Phenol/Alkene Hydroxylase (Phenol_Hydrox)Methane/Phenol/Alkene HydroxylaseThis protein family includes several components of multicomponent enzyme systems predominantly found in Proteobacteria and Actinobacteria, including subunits alpha and beta of a methane monooxygenase and an alkene monooxygenase system, small and larg ...This protein family includes several components of multicomponent enzyme systems predominantly found in Proteobacteria and Actinobacteria, including subunits alpha and beta of a methane monooxygenase and an alkene monooxygenase system, small and large subunits of propane 2-monooxygenase system and P1 protein of phenol hydroxylase [1-4].
Domain
C [auth G]PF02964Methane monooxygenase, hydrolase gamma chain (MeMO_Hyd_G)Methane monooxygenase, hydrolase gamma chain- Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
methane monooxygenase (soluble)  M-CSA #600

Methyl monooxygenase (MMO) catalyses the conversion of methane to methanol coupled with reduction of oxygen and oxidation of NADH. The soluble type found in Methylosinus trichosporium consists of four components (A to D): protein A (represented by this entry), comprises three chains, in an alpha-2, beta-2, gamma-2 configuration, is a nonheme iron protein containing an unusual mu-hydroxo bridge structure at its active site and interacts with both oxygen and methane.

Methanotrophic bacteria play an essential part in cycling carbon in the biosphere by consuming methane produced in anaerobic sediments and by limiting its flux to the atmosphere where it acts as a greenhouse gas. They have been used as a basis for biomimetic catalysts to convert methane in to the easily transportable liquid form of methanol for use as a fuel.

Defined by 6 residues: GLU:B-109 [auth D-114]GLU:B-139 [auth D-144]HIS:B-142 [auth D-147]GLU:B-204 [auth D-209]GLU:B-238 [auth D-243]HIS:B-241 [auth D-246]
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