Biochimica et Biophysica Acta-Bioenergetics

Article	Citations
There is often – but not always – an alternative!	101
Alternative NADH dehydrogenase: A complex I backup, a drug target, and a tool for mitochondrial gene therapy	62
Editorial Board	37
Viscosity and macromolecular crowding in the mitochondrial matrix: Impact on protein diffusion and structure	34
Structural and mechanistic investigation on mitochondrial fusion	33
Lipoate-binding proteins and a heterodisulfide reductase-like complex in prokaryotic sulfur oxidation: bioenergetics, biosynthesis and regulation	32
Organization and mechanisms of OXPHOS biogenesis	31
Regulation of mitochondrial proteostasis by the proton gradient	31
Control of mitochondrial protein import	24
Conversion of the ATP synthase into the Permeability Transition Pore requires the C-terminal domain of subunit e	23
Characterising the ligand interactions and properties of purified UCP1 isoforms	23
Bioenergetic Properties of Microbes as Potential Target for Antibacterial Activity of Plant-Based Compounds	21
Addressing the ambiguity crisis in bioenergetics and thermodynamics	19
Mitochondrial potassium channels: new properties and functions	19
Monotopic quinone reductases from Staphylococcus aureus: The two alternative NADH: quinone oxidoreductases are players with different molecular and cellular roles	19
Effect of an essential arginine mutation (R473C) on the catalytic reaction of cytochrome c oxidase from Paracoccus denitrificans. Characterization through UV/Vis and electrochemical-FTIR spectroscopy	19
Ironing out protein synthesis: METTL17 is an Fe-S cluster checkpoint for mitochondrial translation	19
The rotary mechanism of ATP synthase; how it is regulated and influences the assembly of the enzyme	19
The catalytic reaction of cytochrome c oxidase probed by in situ gas titrations and FTIR difference spectroscopy	18
Individual heme a and heme a3 contributions to the Soret absorption spectrum of the reduced bovine cytochrome c oxidase	18
Spectral modulation of B850 bacteriochlorophyll a in light-harvesting complex 2 from purple photosynthetic bacterium Thermochromatium tepidum by detergents and calcium ions	18
Preservation of bioenergetics and inhibition of ferroptosis with the novel compound SBT-588 in Friedreich’s ataxia cell models	17
Editorial Board	17
Modular structure of complex II: An evolutionary perspective	17
Regulation of the mitochondrial functions by the Ubiquitin protéasome system: molecular bases and physiopathological relevance	17

FRET measurement of cytochrome bc1 and reaction centre complex proximity in live Rhodobacter sphaeroides cells	17
Inhibition of respiratory complex I by 6-ketocholestanol: Relevance to recoupling action in mitochondria	16
Mutations F408DM and F396DN effect the activity of E. coli complex I	16
Highly potent anti-NTM inhibitors targeting the oxidative phosphorylation pathway of a broad spectrum of non-tuberculous mycobacterial pathogens	16
Mitochondrial bioenergetic profiling reveals off-target effects of kinase inhibitors in cancer cell models	15
Cytochrome c oxidase deficiency in two patients due to mutations in COX10	15
Mitochondria-targeted antioxidants and selective peroxisome proliferator-activated receptor delta (PPARδ) agonist improve bioenergetics in glutaric acidemia type 1 patient’s fibroblasts	15
Deficiencies of Riboflavin transporter 2 in the rare neurodegenerative disorder RTD2 are accompanied by ER stress responses and calcium homeostasis derangements	14
Pro-apoptotic Bax and Bak proteins modulate mitochondrial respiration via regulation of TEFM expression	14
Cellular protection and preservation of bioenergetics by the novel compound SBT-589 in a fibroblast model of Leigh syndrome	14
Insertion of non-heme iron in cytochrome c-dependent nitric oxide reductase	14
Mechanisms of Short-Circuit Suppression in the bc Complex	13
Tight association of CpcL with photosystem I in Anabaena sp. PCC 7120 grown under iron-deficient conditions	13
Proton-Coupled Electron Transfer Dynamics in the Obligate Mycobacterial Supercomplex III2IV2	13
High voltage rock’n’roll – A complex approach to protein electron transfer far from equilibrium	13
Rhodoquinone biosynthesis in microbes is catalyzed by RquA via an unusual manganese-dependent amino transfer from S-adenosyl-L-methionine to ubiquinone	12
F420 as a cross-road in the bioenergetics of the ethane oxidation coupled to sulfate reduction	12
Safe and efficient energy conversion in a respiratory supercomplex	12
Regulation of mitochondrial hydrogen sulfide metabolism by endogenous modulators of persulfide dioxygenase	11
Editorial Board	11
Stimulation of cytochrome c oxidase activity by detergents	11
Unveiling the Modulation of MRP2 Activity: Insights from Phosphorylation and Drug Interactions	11
Characterization of the plastid terminal oxidase PTOX in higher plants and in the liverwort Marchantia polymorpha	11
Mitochondria - Nucleus communication in neurodegenerative disease. Who talks first, who talks louder?	10
Bioenergetic deficits in cellular models of Citrin Deficiency	10
Biochemical and computational approaches to dissect the effect of MT-CYB pathogenic mutations on respiratory chain activity and assembly	10
The mitochondrial energy conversion involves cytochrome c diffusion into the respiratory supercomplexes	10
Proton transfer in cytochrome bd-I from E. coli involves Asp-105 in CydB	10
Unusual succinate dehydrogenase (SdhABEF) of the thermoacidophilic archaeon Sulfolobus acidocaldarius	10
The distribution of different types of rotary ATPases among prokaryotes	10
Nitric oxide represses photosystem II and NDH-1 in the cyanobacterium Synechocystis sp. PCC 6803	10
Deletion of the ATP20 gene in Ustilago maydis produces an unstable dimer of F1FO-ATP synthase associated with a decrease in mitochondrial ATP synthesis and a high H2O2 production	10
Breath to breath adaptation to hypoxia - acute mitochondrial oxygen sensing in the pulmonary vascular system	10
Triplet States in the Reaction Center of Oxygenic Photosynthesis	9
Remission cytochrome spectroscopy reveals the mode of action of bedaquiline in living mycobacteria	9
Defining the role of slight acidic conditions on membrane potential and pH variations of Thermus scotoductus K1 cells in presence of different sugars	9
Editorial Board	9
A thioamidated peptide from Amycolatopsis alba affects tumor growth and stemness by targeting FoF1-ATPase, and inducing mitochondrial dysfunction and oxidative stress	9
Cryo-EM structure of respiratory cytochrome bcc-aa3 supercomplex from Corynebacterium glutamicum	9
Thermodynamic landscape of the redox-centers in the electron-confurcating [FeFe]-Hydrogenase (HydABC) of Thermotoga maritima	9
Deciphering nutrient cross-feeding interaction network in an artificial bacterial consortium	8
Engineering the rotor ring of cyanobacterial ATP synthase	8
Photogeneration and reactivity of flavin anionic semiquinone in a bifurcating electron transfer flavoprotein	8
Characterisation of PgcA, a novel respiratory mineral reductase from Geobacter sulfurreducens	8
How Quinones Support the Proton-Motive Force Across Biological Membranes	8
Effect of protein matrix on CP29 spectra and energy transfer pathways	8
In-depth characterization of the impacts of Leigh syndrome-causing mutation m.10191T>C in subunit MT-ND3 on the molecular mechanism of human mitochondrial complex I	8
Impact of tryptophan-retinal interaction on the retinal excited state and photocycle of Gloebacter rhodopsin	8
Voltage Dependent Anion selective Channel 3 (VDAC3) protects mitochondria from oxidative stress	8
Following the evolution of paramagnetic species during catalysis: film-electrochemical EPR spectroscopy	7

Energy dissipation efficiency in the CP43 assembly intermediate complex of photosystem II	7
Loss of a single chlorophyll in CP29 triggers re-organization of the Photosystem II supramolecular assembly	7
The alternative enzymes-bearing tunicates lack multiple widely distributed genes coding for peripheral OXPHOS subunits	7
Beta-hydroxybutyrate mitigates bioenergetic deficits in the Tafazzin shRNA mouse model of Barth Syndrome	7
Respiratory Cytochrome c: a Master Pleiotropic Cell Regulator	7
Searching for function of TMEM70, TMEM242 and c15orf61 – recently identified interactors of subunit c from mammalian FoF1 ATP synthase	7
Metabolic implications of non-electrogenic ATP/ADP exchange in cancer cells: A mechanistic basis for the Warburg effect	7
Improving the catalytic efficiency and dimeric stability of Cu,Zn superoxide dismutase by combining structure-guided consensus approach with site-directed mutagenesis	7
Conformational dynamics of the ABC-transporter BmrA reveals by SDSL-EPR spectroscopy	7
The mitochondriotropic antioxidants AntiOxBEN2 and AntiOxCIN4 are structurally-similar but differentially alter energy homeostasis in human skin fibroblasts	7
Electron and proton transfer in the M. smegmatis III2IV2 supercomplex	7
A biophysical basis for the emergence of the genetic code in protocells	7
A bacteriorhodopsin-based biohybrid solar cell using carbon-based electrolyte and cathode components	7
Mitochondria without oxygen: Biochemical adaptations for the normoxia-hypoxia transition in animals	6
Mitochondrial phosphate carrier depletion in skeletal muscle and Ca2+ homeostasis	6
Physiological role of ATP3-M23K mutation and its impact on yeast mitochondrial ATPase activity	6
Anti-stokes fluorescence of phycobilisome and its complex with the orange carotenoid protein	6
Low Magnetic Fields Stimulates Cardiac Mitochondrial Bioenergetics with a Bell-Shaped Response, Possibly Through the Radical Pair Mechanism	6
SCAF1 drives the compositional diversity of mammalian respirasomes	6
Metabolic adaptations triggered by impairment of cytochrome c oxidase	6
Uncovering the OXPHOS complexes' interdependence mechanism	6
Structure of respiratory Complex I from Yarrowia lipolytica under turnover conditions	6
The Impacts of Sex, Early Life Adversities, Drug Use, and Age-Related Disease on Mitochondria: New Insights from Human Cohort Studies	6
Bi-Genomic Mitochondrial-Split-GFP – the yeast system for screening the mitochondrial matrix echoforms of dually localized proteins	6
A metabolic puzzle: Consumption of C1 compounds and thiosulfate in Hyphomicrobium denitrificans XT	6
An unusual triplet population pathway in the Reaction Centre of the Chlorophyll-d binding Photosystem I of A. marina, as revealed by a combination of TR-EPR and ODMR spectroscopies	6
Mitochondrial disfunction in human fibroblasts from individuals with Fragile X related disorders	5
Studying mitophagy in neuronal models of α-synucleinopathy with the fluorescent MitoRosella reporter	5
Structure of Escherichia coli cytochrome bd-II type oxidase with bound aurachin D	5
A protet-based model that can account for energy coupling in oxidative and photosynthetic phosphorylation	5
Functional redundancy between flavodiiron proteins and NDH-1 in Synechocystis sp. PCC 6803	5
Investigating the proton translocation pathway in respiratory Complex I from the bottom up	5
Function and structure of the membrane arm of the formate-hydrogenlyase complex from Trabulsiella guamensis	5
Editorial Board	5
Structural insights on the mechanism of the electron-bifurcating [FeFe] hydrogenase from Thermotoga maritima	5
Biosynthesis and Physiology of Ubiquinone under anaerobic conditions	5
Ibuprofen, a direct activator of uncoupling protein 1	4
Paradoxes in judging the inhibition of photosynthetic electron transfer chain using P700 oxidation and dark re-reduction analyses	4
Quantification of energy-converting protein complexes in plant thylakoid membranes	4
Recreating Leber’s Hereditary Optic Neuropathy in iPS derived Neurons: Shedding Light on Pathogenic Mechanisms to Combat Blindness	4
Elucidating the Mechanistic Determinants of Flavin-Based Electron Bifurcation	4
Unravelling the fluorescence kinetics of light-harvesting proteins with simulated measurements	4
Acute Reorganization of Complex V in Response to Calcium in Mammalian Heart Mitochondria	4
Analysis of an electrostatic mechanism for ΔpH dependent gating of the voltage-gated proton channel, HV1, supports a contribution of protons to gating charge	4
Comparable respiratory activity in attached and suspended fibroblast cell lines	4
Cyanide Insensitive Oxidase contributes to Pseudomonas aeruginosa tolerance to hydrogen sulfide and nitric oxide	3
A transmitochondrial sodium gradient controls membrane potential in mammalian mitochondria	3
Intrinsic adaptations in OXPHOS power output and reduced tumorigenicity characterize doxorubicin resistant ovarian cancer cells	3
Exogen ketosis induced by 1,3-butanediol administration to rats affects mitochondrial functionality and proteome	3
Time-Resolved Lipid Dynamics in the Reductive Phase of Cytochrome c Oxidase	3
Hacking the electron transport chain to live without oxygen	3
Cryo-EM studies on mechanism of respiratory complex I	3
Characterization of the ubiquinone reaction cavity in mitochondrial respiratory complex I using artificial ligands	3
AAV-based therapy for mitochondrial diseases and optic neuropathies	3
Metabolic substrate conditions direct activity of nicotinamide nucleotide transhydrogenase (NNT), thereby modifying mitochondrial pyruvate metabolism	3
Two separate pathways underlie NADH and succinate oxidation in swine heart mitochondria: Kinetic evidence on the mobile electron carriers	3
Mitochondrial heterogeneity during neuronal differentiation	3
Proton channel communication in cytochrome c oxidase	3
Controlling and exploiting unpaired electrons in photosynthetic complex I	3
Electrocatalytic and Spectroscopic Studies on Cytochrome bd Oxidase, a Highly Diverse Bacterial Defense Factor	3
Disruption of mitochondrial bioenergetics and calcium homeostasis by phytanic acid in the heart: Potential relevance for the cardiomyopathy in Refsum disease	3
Modelling MERRF in 3D cortical organoids: manipulating patient-derived iPSCs to gain insight on prospective pre-clinical therapeutic strategies	3
Unveiling the membrane bound dihydroorotate: Quinone oxidoreductase from Staphylococcus aureus	3
The role of COX6B subunit in the assembly and function of cytochrome c oxidase	3
Towards understanding the synthesis of the key intermediates nitric oxide and hydrazine in anaerobic ammonium oxidation	3
Investigating inter-monomer electron transfer in cytochrome bc1 and its influence on ROS generation by the quinol oxidation site	3
Conformational changes in mitochondrial complex I from the thermophilic eukaryote Chaetomium thermophilum	3
Utilizing ATeam Fluorescent Proteins for Assessing ATP Synthesis and Hydrolysis In Vitro and in Isolated Yeast Mitochondria	3
Insights into electron transfer and bifurcation of the Synechocystis sp. PCC6803 hydrogenase reductase module	2
NAC partially prevents mitochondrial impairment and oxidative stress in cardiac cells induced by the administration of extracellular vesicles derived from nephrectomy 5/6 rats	2
Effects on mammalian in vivo metabolism caused by altered interactions and levels of the individual OXPHOS complexes	2
Mechanism of the NhaA antiporter from constant pH molecular dynamics simulations	2
Effects of supramolecular organization of the ATP synthase on mitochondrial bioenergetics and ultrastructure	2
Photoactivation and conformational gating for manganese binding and oxidation in bacterial reaction centers	2
Transglutaminase type 2 modulates melanoma mitochondrial metabolism during phenotype switching	2
Controlling the rate of extracellular electron transfer in Shewanella oneidensis	2
Alternative Oxidase – Aid or obstacle to combat the rise of fungal pathogens?	2
Whole-body Ndufs4 knockout mice with isolated complex I deficiency engage a futile adaptive brain response	2
How does the presence of mitochondrial DNA regulate the cell cycle in Saccharomyces cerevisiae?	2
Unveiling the Complex problem with Mdivi-1	2

Sex-dependent differences in macaque brain mitochondria	2
Time and charge/pH-dependent activation of K+ channel-mediated K+ influx and K+/H+ exchange in guinea pig heart isolated mitochondria; role in bioenergetic stability	2
Deletion of the natural inhibitory protein Inh1 in Ustilago maydis has no effect on the dimeric state of the F1FO-ATP synthase but increases the ATPase activity and reduces the stability	2
Molecular dynamics simulations reveal the coupling of quinone dynamics to protein conformational changes in respiratory complex I	2
OPA1 disease-causing mutants perturb mitochondrial nucleoid cluster distribution	2
Ethanol Blunts the Reoxygenation Capacity of H2O2 Dismutation by Catalase	2
Nucleotide homeostasis in OXPHOS deficiency: the contributing roles of MYC and the integrated stress response	2
Loss of TMEM65 causes mitochondrial disease mediated by mitochondrial calcium	2
Antarctic photosynthesis: energy transfer and charge separation in the diatom Chaetoceros simplex	2
The YNL320w – the uncharacterized protein involved in glutathione homeostasis in S. cerevisiae	2
Redox chemistry of the FMN-cofactor in respiratory complex I	2
Spectroscopic identification of the catalytic intermediates of cytochrome c oxidase in respiring heart mitochondria	2
Analysis of mitochondrial dynamics by high-resolution imaging approaches	2
Characterization of TMBIM5/MICS1 as the mammalian mitochondrial Ca2+/H+ exchanger	2
NAM as a neuroprotective therapeutic intervention for mitochondrial optic neuropathies	1
Thylakoid proteome variation of Eutrema salsugineum in response to drought and salinity combined stress	1
Rotary dynamics of yeast V1-ATPase by high resolution single-molecule studies	1
Lysine 204 is crucial for the antiport function of the human LAT1 transporter	1
Characterizing electron transfer through the mitochondrial Q-junction from fatty acid oxidation and TCA cycle on HEK 293T cells: correlation with respiration	1
Dissecting the charge movements during adenine nucleotide exchange by mitochondrial ADP/ATP carrier	1
Complexome profiling identified novel proteins interacting with membrane arm sub-assemblies of complex I from Yarrowia lipolytica	1
Structures of methanogenic Fdh-Hdr-Fmd complexes give insight into direct electron transfer and electron bifurcation processes	1
Exploring the mechanism of product release from the catalytic site of F1-ATPase	1
Mechanistic Characterisation of CO2 Reduction in Context of Abiogenesis	1
Extrahepatic reductive stress in mitochondrial complex I deficient mice augmented by ketogenesis	1
Cooperative assembly of respiratory supercomplexes	1
FOF1-ATP synthase: When it pays to go in reverse	1
High resolution cryoEM structures of terminal oxidases	1
Downhill excitation energy flow in reaction centers of purple bacteria Rhodospirillum rubrum G9	1
Recent structural discoveries of photosystems I and II acclimated to absorb far-red light	1
Unitary conductance of the voltage-sensitive proton channel HV1	1
Finding the E-channel proton loading sites by calculating the ensemble of protonation microstates	1
Src kinase interacts with stomatin-like protein 2	1
Evolution of quinol oxidation within the heme‑copper oxidoreductase superfamily	1
Mitochondrial bioenergetics of mammalian synthetic respiratory chain containing alternative quinol oxidase	1
Mutagenesis in the Mrp antiporter from Bacillus pseudofirmus identifies residues critical for the histidine switch mechanism	1
Respiratory complex I deficiency triggers OMA1-mediated integrated stress response and affects lipid homeostasis during glucose restriction	1
Management of electric currents in cable bacteria	1
CryoEM structures of respiratory complex I as a basis for understanding its function and mechanism	1
Characterization of the branched respiratory chain of the basidiomycete Rhodotorula mucilaginosa	1
The HydS C-terminal domain of the Thiocapsa bogorovii HydSL hydrogenase is involved in membrane anchoring and electron transfer	1
Oxidised states of cytochrome c oxidase	1
Structural characterisation of the energy-conserving methyltransferase of a methylotrophic methanogenic archaeon	1
Carbon fixation in the chemoautotrophic bacterium Aquifex aeolicus: the five-subunit PFOR and OGOR and two low-potential ferredoxins	1
New insights in quinone reactivity in the nitrate reductase A from E. coli	1
Innovations in Bacterial Breathing: Hardwired Respirasomes	1
High-resolution respirometry for measurement of fatty acid β-oxidation in brain mitochondria. A comparative study and application in ischemia and aging	1
Attenuated ADP-inhibition of FOF1 ATPase mitigates manifestations of mitochondrial dysfunction in yeast	1
Photosynthetic flexibility enables balancing primary metabolism for algal growth	1
Calcium-bound structure of bovine cytochrome c oxidase	1
Substeps during subunit rotation in single FoF1-ATP synthase trapped in solution	1
Cyanide resistant respiration and the alternative oxidase pathway: A journey from plants to mammals	1
Mitofusin 1 and 2 deletion results in extensive mitochondria-ER/SR remodeling and compromises skeletal muscle function	1
On the inter-monomer electron transfer in cytochrome bc1	1
Functional design of a bacterial superoxide:ubiquinone oxidoreductase	1
Characterization of the membrane protein complexes responsible for reductive dehalogenation	1
Impact of mitochondrial quality control and architecture on organismic aging	1
Comparative analysis of the mena- and demethylmena-(semi)quinone binding mode to the quinol oxidation site of E. coli nitrate reductase A	1
Deuterium isotope effect on the kinetics of nonphotochemical chlorophyll fluorescence quenching and the transthylakoid ΔpH	1
Ubiquinone-10 binding to mammalian respiratory complex I and conformational transitions associated with Q-site occupancy	1
Reversible Disassembly of V-ATPases in Aging and Disease	1
Three enzymes governed the rise of O2 on Earth	1
The rise of dioxygen—a planetary revolution	1
Hydrogen sulfide oxidation by sulfide:quinone reductase supports mitochondrial ATP production when complex I is inhibited	1
Metabolic clearance of oxaloacetate and mitochondrial complex II respiration: Divergent control in skeletal muscle and brown adipose tissue	1
Structural robustness of the NADH binding site in NADH:ubiquinone oxidoreductase (complex I)	1
Probing the proton release by Photosystem II in the S1 to S2 high-spin transition	1
Electric Fields Modulate Proton Transfer Reactions in Cytochrome c Oxidase	0
Chlorophyll excimers in LHCII complex	0
The role of the quinol-interacting ImcH complex on Geobacter sulfurreducens energy conservation and extracellular electron transfer	0
The interface between monomers of the F1FO-ATP synthase dimer confers resistance against heavy metals	0
The Janus Faces of MCL-1: Metabolic Regulator by Day and Death Antagonist by Night	0
Unravelling the mechanisms behind latent ATP hydrolysis in mycobacterial F1-ATPase	0
Molecular insight of the mechanism of an ancient membrane-bound hydrogenase	0
Identification of a cytochrome bc1-aa3 supercomplex in Rhodobacter sphaeroides	0
Src Kinase modulates brain metabolism and behavior in a cell type specific manner	0
The influence of popular drugs inhibiting the synthesis of coenzyme Q, statins and bisphosphonates, on the oxygen metabolism of cells	0
Role of accessory subunits of the membrane arm for assembly and stability of mitochondrial complex I from Yarrowia lipolytica	0
Structure and function of chaperon proteins for activation of nitric oxide reductase in Paracoccus denitrificans	0
Identification of biomarkers reflecting OPA1-related Dominant Optic Atrophy severity to infer patient cohorts eligible to clinical trials	0
Treating Cardiac Arrest and Ischemic Injury with Mitochondrial Transplantation: Challenges and Opportunities to Save Lives	0
News from superoxide oxidase	0
Alterations in coenzyme Q10 status in a cybrid line harboring the 3243A>G mutation of mitochondrial DNA is associated with abnormal mitochondrial bioenergetics and dysregulated mitochondrial biogen	0
Liver-targeted gene therapy prevents chronic hypothermia and doubles survival in complex III deficient mice	0
How lipid transfer proteins and the mitochondrial membrane shape the kinetics of β-oxidation the liver	0
Ketogenic diet-induced cardiac fibrosis is independent of long-chain and medium-chain fatty acid content and mitochondrial biogenesis in mice.	0
Spin transition induced by weak magnetic fields stimulates cardiac mitochondrial bioenergetics with a bell-shaped response	0
Extracellular electron transfer via Electron Conduits in Gram Negative Bacteria	0
Conformational dynamics of cyanobacterial NDH	0
Quantum Electron Tunneling in the Respiratory Chain: A Case for Quantum Biology	0
New insights in Formate dehydrogenases family: lessons from Bacillus subtilis	0
Elucidating the structure of Paracoccus denitrificans complex I, a model system for the mammalian enzyme, using lipid nanodiscs	0
The energy nanosensor AMPfret, expressed stably in HEK cells, provides insights into toxic stress responses and heterogeneity within clonal cell populations	0
Mitochondrial bioenergetic dysfunction linked to myxomatous mitral valve degeneration explored by PBMCs metabolism analysis	0
Elucidating the role of primary and secondary sphere Zn2+ ligands in the cyanobacterial CO2 uptake complex NDH-14: The essentiality of arginine in zinc coordination and catalysis	0