Fidel Ramírez-Amador
@fidelormz.bsky.social
PhD student at SYNMIKRO (Uni-Marburg)
Reposted by Fidel Ramírez-Amador
Nickel: Geochemistry, biochemistry and its role in chemical and biological evolutions
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Nickel: Geochemistry, biochemistry and its role in chemical and biological evolutions
Nickel is a versatile element that plays critical roles in Earth's geological and biological evolution, from the depths of the magmatic mantle to the …
www.sciencedirect.com
November 9, 2025 at 5:47 PM
Nickel: Geochemistry, biochemistry and its role in chemical and biological evolutions
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Fidel Ramírez-Amador
Carbon-monoxide-driven bioethanol production operates through a tungsten-dependent catalyst
#BioEthanol #CarbonMonoxide
www.nature.com/articles/s41...
#BioEthanol #CarbonMonoxide
www.nature.com/articles/s41...
Carbon-monoxide-driven bioethanol production operates through a tungsten-dependent catalyst - Nature Chemical Biology
Microbial alcohol production from waste gases could enable sustainable carbon cycling. Now, the tungsten-dependent aldehyde:ferredoxin oxidoreductase from the gas-converting bacterium Clostridium auto...
www.nature.com
November 2, 2025 at 10:17 AM
Carbon-monoxide-driven bioethanol production operates through a tungsten-dependent catalyst
#BioEthanol #CarbonMonoxide
www.nature.com/articles/s41...
#BioEthanol #CarbonMonoxide
www.nature.com/articles/s41...
Reposted by Fidel Ramírez-Amador
Our latest work on the nitrogenase-like methylthio-alkane reductase, which specifically reduces reduces carbon-sulfide bonds is now out @natcatal.nature.com: doi.org/10.1038/s419.... We find for the first time large #nitrogenase metalloclusters (P- and L-cluster) outside nitrogenases.
October 23, 2025 at 10:09 AM
Our latest work on the nitrogenase-like methylthio-alkane reductase, which specifically reduces reduces carbon-sulfide bonds is now out @natcatal.nature.com: doi.org/10.1038/s419.... We find for the first time large #nitrogenase metalloclusters (P- and L-cluster) outside nitrogenases.
Reposted by Fidel Ramírez-Amador
Happy to share our latest review article, this time joining forces with 📌Seigo Shima, 📌James Birrell, 📌Giorgio Caserta, and 📌Oli Lenz. We wrote about hydrogenase catalysis because this is what we do best 😎
doi.org/10.1002/9783...
doi.org/10.1002/9783...
October 8, 2025 at 2:17 PM
Happy to share our latest review article, this time joining forces with 📌Seigo Shima, 📌James Birrell, 📌Giorgio Caserta, and 📌Oli Lenz. We wrote about hydrogenase catalysis because this is what we do best 😎
doi.org/10.1002/9783...
doi.org/10.1002/9783...
Reposted by Fidel Ramírez-Amador
#Methanosarcina acetivorans requires methanol:coenzyme M methyltransferases for #ethane formation from ethanol #methane
link.springer.com/article/10.1...
link.springer.com/article/10.1...
Methanosarcina acetivorans requires methanol:coenzyme M methyltransferases for ethane formation from ethanol - Antonie van Leeuwenhoek
Corrinoid-dependent enzymes either catalyze methyltransfer reactions, or they generate substrate radicals using adenosylcobalamin for subsequent rearrangement reactions. The corrinoid-dependent methyl...
link.springer.com
September 21, 2025 at 6:37 AM
#Methanosarcina acetivorans requires methanol:coenzyme M methyltransferases for #ethane formation from ethanol #methane
link.springer.com/article/10.1...
link.springer.com/article/10.1...
Reposted by Fidel Ramírez-Amador
New frontiers in short-chain alkyl-coenzyme M reductases
#methanogenesis #methane #microbiology
www.sciencedirect.com/science/arti...
#methanogenesis #methane #microbiology
www.sciencedirect.com/science/arti...
September 28, 2025 at 8:05 AM
New frontiers in short-chain alkyl-coenzyme M reductases
#methanogenesis #methane #microbiology
www.sciencedirect.com/science/arti...
#methanogenesis #methane #microbiology
www.sciencedirect.com/science/arti...
Reposted by Fidel Ramírez-Amador
Carbon monoxide metabolism in freshwater anaerobic methanotrophic archaea https://www.biorxiv.org/content/10.1101/2025.09.16.676500v1
September 17, 2025 at 4:19 AM
Carbon monoxide metabolism in freshwater anaerobic methanotrophic archaea https://www.biorxiv.org/content/10.1101/2025.09.16.676500v1
Reposted by Fidel Ramírez-Amador
Atomic resolution structures of the methane-activating enzyme in anaerobic methanotrophy reveal extensive post-translational modifications
#microbiology #methane #archaea
@natcomms.nature.com
www.nature.com/articles/s41...
#microbiology #methane #archaea
@natcomms.nature.com
www.nature.com/articles/s41...
September 9, 2025 at 7:43 AM
Atomic resolution structures of the methane-activating enzyme in anaerobic methanotrophy reveal extensive post-translational modifications
#microbiology #methane #archaea
@natcomms.nature.com
www.nature.com/articles/s41...
#microbiology #methane #archaea
@natcomms.nature.com
www.nature.com/articles/s41...
Reposted by Fidel Ramírez-Amador
Fantastic review on methodological developments in protein structural phylogenetics
academic.oup.com/gbe/article/...
academic.oup.com/gbe/article/...
Protein Structural Phylogenetics
Abstract. Protein structural phylogenetics is an interdisciplinary branch of molecular evolution that (i) uses 3D structural data to trace evolutionary his
academic.oup.com
September 1, 2025 at 11:15 PM
Fantastic review on methodological developments in protein structural phylogenetics
academic.oup.com/gbe/article/...
academic.oup.com/gbe/article/...
Reposted by Fidel Ramírez-Amador
Stepwise and reversible assembly of [2Fe–2S] rhombs to [8Fe–8S] clusters (Mougel et al. via @natchem.nature.com)
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Stepwise and reversible assembly of [2Fe–2S] rhombs to [8Fe–8S] clusters and their topological interconversions - Nature Chemistry
Elucidating the nature of the metallocofactors in nitrogenase enzymes, and preparing synthetic analogues of these clusters, is a classic target for bioinorganic chemists. Now the transformation of [Fe...
www.nature.com
August 21, 2025 at 10:26 AM
Stepwise and reversible assembly of [2Fe–2S] rhombs to [8Fe–8S] clusters (Mougel et al. via @natchem.nature.com)
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Fidel Ramírez-Amador
1/3 Electricity from air! In the top journal Nano Energy today, we report the first fuel cell that makes power from air alone. We achieved this by using the enzyme Huc to oxidize ambient hydrogen. This results in a continuous low-level power from air and higher outputs with industrial waste gases.
Nanoengineered bioanode with oxygen-insensitive hydrogenase for sustainable energy harvesting from atmospheric hydrogen and waste gases
Enzymatic biofuel cells (EBFCs) utilizing hydrogenases to oxidize hydrogen offer a sustainable approach to energy conservation. However, the oxygen se…
www.sciencedirect.com
August 8, 2025 at 3:49 AM
1/3 Electricity from air! In the top journal Nano Energy today, we report the first fuel cell that makes power from air alone. We achieved this by using the enzyme Huc to oxidize ambient hydrogen. This results in a continuous low-level power from air and higher outputs with industrial waste gases.
Reposted by Fidel Ramírez-Amador
Metal ions are universally required for life, and many of the foundational principles of metal homeostasis have emerged from studies of microbial systems. In this review, I provide a introductory overview targeted to those new to the field.
#MicroSky #Metals
rdcu.be/eycU2
#MicroSky #Metals
rdcu.be/eycU2
Microbial metal physiology: ions to ecosystems
Nature Reviews Microbiology - Metal ions are required for all cells, and their homeostasis relies on ancient mechanisms that facilitate their import, distribution and storage. In this Review,...
rdcu.be
July 28, 2025 at 5:08 PM
Metal ions are universally required for life, and many of the foundational principles of metal homeostasis have emerged from studies of microbial systems. In this review, I provide a introductory overview targeted to those new to the field.
#MicroSky #Metals
rdcu.be/eycU2
#MicroSky #Metals
rdcu.be/eycU2
Reposted by Fidel Ramírez-Amador
Our new study shows how nickel limitation changes electron flow in methanogens.
@nature.com
#methanogens #methane #archaea
www.nature.com/articles/s41...
@nature.com
#methanogens #methane #archaea
www.nature.com/articles/s41...
Electron flow in hydrogenotrophic methanogens under nickel limitation - Nature
Two distantly related methanogens shift the methanogenic pathway under nickel limitation, suggesting that methanogens adapt to changing bioavailability of nickel by rerouting electron flow between two...
www.nature.com
July 3, 2025 at 8:09 AM
Our new study shows how nickel limitation changes electron flow in methanogens.
@nature.com
#methanogens #methane #archaea
www.nature.com/articles/s41...
@nature.com
#methanogens #methane #archaea
www.nature.com/articles/s41...
Reposted by Fidel Ramírez-Amador
New paper from the lab from Sriram Garg in my group. We introduce a general substitution matrix for structural phylogenetics. I think this is a big deal, so read on below if you think deep history is important. academic.oup.com/mbe/advance-...
A general substitution matrix for structural phylogenetics.
Abstract. Sequence-based maximum likelihood (ML) phylogenetics is a widely used method for inferring evolutionary relationships, which has illuminated the
academic.oup.com
June 11, 2025 at 2:01 PM
New paper from the lab from Sriram Garg in my group. We introduce a general substitution matrix for structural phylogenetics. I think this is a big deal, so read on below if you think deep history is important. academic.oup.com/mbe/advance-...
Reposted by Fidel Ramírez-Amador
Proud to present the lab's latest work. The full structure of the sodium translocating methyltransferase (Mtr) bound to a small oxygen-responsive small protein MtrI. Work by Tristan and together with @schmitzstreitslab.bsky.social .
www.biorxiv.org/content/10.1101/2025.06.02.657420v1
www.biorxiv.org/content/10.1101/2025.06.02.657420v1
June 4, 2025 at 7:10 PM
Proud to present the lab's latest work. The full structure of the sodium translocating methyltransferase (Mtr) bound to a small oxygen-responsive small protein MtrI. Work by Tristan and together with @schmitzstreitslab.bsky.social .
www.biorxiv.org/content/10.1101/2025.06.02.657420v1
www.biorxiv.org/content/10.1101/2025.06.02.657420v1
Reposted by Fidel Ramírez-Amador
CLUSTERING FOR METHANE
Nice write-up @natcatal.nature.com of our recent article on MCR activation 🙏🏻
www.nature.com/articles/s41...
Nice write-up @natcatal.nature.com of our recent article on MCR activation 🙏🏻
www.nature.com/articles/s41...
Clustering for methane - Nature Catalysis
Nature Catalysis - Clustering for methane
www.nature.com
June 4, 2025 at 7:15 AM
CLUSTERING FOR METHANE
Nice write-up @natcatal.nature.com of our recent article on MCR activation 🙏🏻
www.nature.com/articles/s41...
Nice write-up @natcatal.nature.com of our recent article on MCR activation 🙏🏻
www.nature.com/articles/s41...
Reposted by Fidel Ramírez-Amador
Leveraging spectroscopic and structural approaches we obtained new insights into the role of #ferredoxins in N2 fixation. Just published in Chemistry – A European Journal: doi.org/10.1002/chem...! Great work by Holly Addison. Fantastic collaboration with Antonio Pierik on the EPR characterization.
Two Key Ferredoxins for Nitrogen Fixation Have Different Specificities and Biophysical Properties
Two ferredoxins, FdC and FdN, are collectively essential for the process of nitrogen fixation by the iron nitrogenase in R. capsulatus. We explore the biophysical factors, through spectroscopic and s....
doi.org
June 1, 2025 at 9:46 AM
Leveraging spectroscopic and structural approaches we obtained new insights into the role of #ferredoxins in N2 fixation. Just published in Chemistry – A European Journal: doi.org/10.1002/chem...! Great work by Holly Addison. Fantastic collaboration with Antonio Pierik on the EPR characterization.
Reposted by Fidel Ramírez-Amador
Happy to present the lab latest work, today from the green-side. The ultimate PSII assembly intermediate that directly precedes incorporation of the Mn4O5Ca cluster and formation of the OEC. Psb32 binds to PsbV, challenging the assumption the extrinsic subunits all associate spontaneously in-vivo.
May 12, 2025 at 5:50 AM
Happy to present the lab latest work, today from the green-side. The ultimate PSII assembly intermediate that directly precedes incorporation of the Mn4O5Ca cluster and formation of the OEC. Psb32 binds to PsbV, challenging the assumption the extrinsic subunits all associate spontaneously in-vivo.
Reposted by Fidel Ramírez-Amador
My lab mates and their collaborators have a really cool paper you should check out: the structure of catalytically active (Ni(I)) methyl-coM reductase: www.biorxiv.org/content/10.1...
www.biorxiv.org
May 2, 2025 at 8:49 PM
My lab mates and their collaborators have a really cool paper you should check out: the structure of catalytically active (Ni(I)) methyl-coM reductase: www.biorxiv.org/content/10.1...
Reposted by Fidel Ramírez-Amador
Short press piece @unipotsdam.bsky.social about our new article @nature.com on methyl coenzyme M reductase (MCR)
www.uni-potsdam.de/en/headlines...
www.uni-potsdam.de/en/headlines...
Early life – Enzyme for biological methane production decoded
www.uni-potsdam.de
April 17, 2025 at 12:16 PM
Short press piece @unipotsdam.bsky.social about our new article @nature.com on methyl coenzyme M reductase (MCR)
www.uni-potsdam.de/en/headlines...
www.uni-potsdam.de/en/headlines...
Reposted by Fidel Ramírez-Amador
🧪 Durchbruch in der biochemischen Grundlagenforschung mit zentraler Bedeutung für #Energie & #Klima:
Ein Team der @unimarburg.bsky.social & der #TUBerlin/ @unisyscat.bsky.social hat erstmals den Aktivierungsmechanismus des Enzyms MCR aufgeklärt – zentral für die biologische Produktion von #Methan. 👇
Ein Team der @unimarburg.bsky.social & der #TUBerlin/ @unisyscat.bsky.social hat erstmals den Aktivierungsmechanismus des Enzyms MCR aufgeklärt – zentral für die biologische Produktion von #Methan. 👇
Durchbruch in der Methan-Forschung: Aktivierungsmechanismus des Methan-produzierenden Enzyms entschlüsselt
„Nature“-Publikation offenbart die evolutionäre Verbindung zwischen zwei fundamentalen biologischen Prozessen
www.tu.berlin
April 25, 2025 at 9:37 AM
🧪 Durchbruch in der biochemischen Grundlagenforschung mit zentraler Bedeutung für #Energie & #Klima:
Ein Team der @unimarburg.bsky.social & der #TUBerlin/ @unisyscat.bsky.social hat erstmals den Aktivierungsmechanismus des Enzyms MCR aufgeklärt – zentral für die biologische Produktion von #Methan. 👇
Ein Team der @unimarburg.bsky.social & der #TUBerlin/ @unisyscat.bsky.social hat erstmals den Aktivierungsmechanismus des Enzyms MCR aufgeklärt – zentral für die biologische Produktion von #Methan. 👇
I'm truly excited to announce our new publication in @nature.com unraveling a central picture of the Methyl-coenzyme M reductase (MCR) activation machinery and it's strong ATP dependency - kudos to @rnfr2d2.bsky.social for the fantastic illustration!
LINK: www.nature.com/articles/s41...
LINK: www.nature.com/articles/s41...
April 16, 2025 at 4:20 PM
I'm truly excited to announce our new publication in @nature.com unraveling a central picture of the Methyl-coenzyme M reductase (MCR) activation machinery and it's strong ATP dependency - kudos to @rnfr2d2.bsky.social for the fantastic illustration!
LINK: www.nature.com/articles/s41...
LINK: www.nature.com/articles/s41...