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Haaris Ahsan Safdari

@haarissafdari.bsky.social
1.1K followers 1.2K following 35 posts

Staff Scientist EM @ MRC LMB, Cambridge 🇬🇧 Single particle cryo-EM, cryo-electron tomography

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Reposted by Haaris Ahsan Safdari
Wilson Lab @wilsonlab.bsky.social · 03/09/2026
www.nature.com/articles/s41...
nature.com
Rewiring the ribosome to translate proteins encoded in its own RNA - Nature
Bacterial ribosomes can synthesize proteins encoded within their own RNA.
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Reposted by Haaris Ahsan Safdari
Haaris Ahsan Safdari @haarissafdari.bsky.social · 15/08/2026
Excited to attend the Instruct-ERIC Hands-on Workshop on Advanced Cryo-FIB-SEM Methods at the EMBL Imaging Centre in Heidelberg, Germany, from 9–13 November 2026. Looking forward to learning about cryogenic milling, lamella preparation, cryo-FIB lift-out, automated workflows etc.
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Haaris Ahsan Safdari @haarissafdari.bsky.social · 15/08/2026
Excited to attend the Instruct-ERIC Hands-on Workshop on Advanced Cryo-FIB-SEM Methods at the EMBL Imaging Centre in Heidelberg, Germany, from 9–13 November 2026. Looking forward to learning about cryogenic milling, lamella preparation, cryo-FIB lift-out, automated workflows etc.
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Reposted by Haaris Ahsan Safdari
Nature Reviews Microbiology @natrevmicro.nature.com · 26/06/2026
ICYMI: New online! A new antibiotic scaffold hits a new target
dlvr.it
A new antibiotic scaffold hits a new target
Nature Reviews Microbiology, Published online: 19 June 2026; doi:10.1038/s41579-026-01336-5This study describes the discovery of a new antibiotic with a previously unknown mode of action.
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Reposted by Haaris Ahsan Safdari
Lesley MacNeil @steeltownworms.bsky.social · 05/06/2026
🪱🐭💊🇨🇦
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Reposted by Haaris Ahsan Safdari
Asaf Levy @asaflevylab.bsky.social · 25/06/2026
the 2nd paper in Nature *this month* by Gerard D. Wright! that's the 1st one www.nature.com/articles/s41...
nature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
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Reposted by Haaris Ahsan Safdari
Nature @nature.com · 24/06/2026
A 'megacluster' of genes found in a common soil bacterium can produce a range of antibiotics that can act against multi-drug-resistant bacteria go.nature.com/4xObGKf
go.nature.com
Antibiotic cocktail made by soil bacteria can kill superbugs
Four antibiotic compounds produced in Streptomyces bacteria attack multiple parts of an essential metabolic pathway.
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Reposted by Haaris Ahsan Safdari
Norma @looftsabine.bsky.social · 20/06/2026
🧵 study bsky.app/profile/marcveld.bsky.soci…
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Reposted by Haaris Ahsan Safdari
Celery Caraway @celerycaraway.bsky.social · 18/06/2026
Yes ! www.nature.com/articles/s41...
nature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
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Reposted by Haaris Ahsan Safdari
U15 Canada @u15ca.bsky.social · 04/06/2026
Manikomycin, which blocks the exit site of the protein-producing machinery in bacteria, is the fourth major discovery from antimicrobial resistance expert Gerry Wright’s research team in recent months. news.mcmaster.ca/mcmaster-res... #CdnPSE (2/2)
news.mcmaster.ca
McMaster researcher’s latest antibiotic discovery offers new way to kill drug-resistant bacteria
Researchers at McMaster University have discovered a new antibiotic that kills some of the world’s most dangerous and drug-resistant bacteria — and does so by targeting a previously unknown…
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Reposted by Haaris Ahsan Safdari
Amesh Adalja @ameshaa.bsky.social · 04/06/2026
“the compound—known as manikomycin—is the first antibacterial agent known to target the E-site in the large ribosomal subunit, opening the door to an entirely new class of treatments.” www.genengnews.com/topics/infec...
genengnews.com
New Antibiotic, Manikomycin, Acts on Novel Ribosomal Target
Researchers discover manikomycin, a novel antibiotic that kills drug-resistant bacteria by targeting a previously unknown ribosomal target.
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Reposted by Haaris Ahsan Safdari
Ranked News @rankednews.bsky.social · 12/06/2026
New Antibiotic Found in Dirt Targets Superbugs in a Way ‘Never Been Seen Before’: A collaborative team of U.S., Canadian, and German researchers has discovered manikomycin, a novel peptide antibiotic derived from the soil bacterium *Streptomyces rimosus*, the same sou… ranked.news/976616?u=b
Article image
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Reposted by Haaris Ahsan Safdari
Universität Hamburg @uni-hamburg.de · 03/06/2026
🧫 Antibiotikum gegen multiresistente Keime entdeckt: Ein Forschungsteam unter UHH-Beteiligung hat in einem bereits untersuchten Bodenbakterium den neuen Wirkstoff Manikomycin gefunden. Die Entdeckung zeigt: Bekannte Mikroorganismen besitzen weiterhin Potenzial für die Entwicklung neuer Antibiotika.
uni-hamburg.de
Neues Antibiotikum gegen multiresistente Keime entdeckt
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Reposted by Haaris Ahsan Safdari
My IRL friends call me Chris @christyceeck.bsky.social · 04/06/2026
New class of antibiotics? Please. "The compound, called manikomycin, was identified by a team led by McMaster..Early testing showed it was effective against several priority pathogens, including salmonella, E. coli & klebsiella. “What makes this exciting is that it’s a brand new unique structure”
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Reposted by Haaris Ahsan Safdari
Canada Healthwatch 🍁 @canadahealthwatch.ca · 04/06/2026
Canadian-led team of scientists discover new antibiotic hidden in decades-old bacterium www.ctvnews.ca/sci-tech/article/can… ↷ canadahealthwatch.ca/featured 🍁
Study team lead Gerry Wright explains how the new drug 'manikomycin' could open the door to a unique class of treatments.
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Reposted by Haaris Ahsan Safdari
Thomas Lumley @tslumley.bsky.social · 18/06/2026
Manikomycin A is not going to be a drug, but it *is* a very promising starting point for new antibiotic development www.science.org/content/blog...
science.org
A New Antibiotic Idea From An Old Source
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Reposted by Haaris Ahsan Safdari
Norma @looftsabine.bsky.social · 20/06/2026
Biochemiker und Pharmazeuten aus den USA, Kanada und Deutschland haben gemeinsam ein neues, natürlich vorkommendes #Antibiotikum entdeckt: #Manikomycin. gizmodo.com/new-antibiotic-found-in…
gizmodo.com
New Antibiotic Found in Dirt Targets Superbugs in a Way ‘Never Been Seen Before'
Researchers tested their newly discovered peptide against one common antibiotic-resistant bacteria. Only about one in every hundred million survived to pass on genetic resistance.
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Reposted by Haaris Ahsan Safdari
Kurianlab @kurianlab.bsky.social · 09/06/2026
journals.iucr.org/m/issues/202...
journals.iucr.org
Cryo-EM: the revolution continues
The increasing democratization and implementation of electron cryo-microscopy appears poised to drive a new revolution in digital structural biology.
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Reposted by Haaris Ahsan Safdari
Zeynep Baharoglu @zeynepbaharoglu.bsky.social · 16/06/2026
Ribosome hibernation in archea with HibA, with a bacterial line hpf/raiA domain rdcu.be/foDtr
rdcu.be
A family of ribosome hibernation factors widespread in Archaea
Nature Communications - Ribosome hibernation preserves translation machinery during stress. Here, the authors identify a ribosome hibernation factor that is widespread in archaea and combines...
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Reposted by Haaris Ahsan Safdari
Phira @phira603.bsky.social · 20/06/2026
This is such a big fucking deal and it's also so cool!!!
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Reposted by Haaris Ahsan Safdari
Marc Veldhoen @marcveld.bsky.social · 20/06/2026
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome Very important! A new antibiotic working in a very different way. www.nature.com/artic... 1/5
nature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome
Nature - Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting...
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Reposted by Haaris Ahsan Safdari
Wilson Lab @wilsonlab.bsky.social · 20/06/2026
www.nature.com/articles/s41...
nature.com
A new antibiotic scaffold hits a new target - Nature Reviews Microbiology
This study describes the discovery of a new antibiotic with a previously unknown mode of action.
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Reposted by Haaris Ahsan Safdari
Tominaga K. (tomiken) @pacyc184.bsky.social · 03/06/2026
Flipping antimicrobial peptides in the exit tunnel of the bacterial ribosome | Nature Communications www.nature.com/articles/s41467-026-…
nature.com
Flipping antimicrobial peptides in the exit tunnel of the bacterial ribosome - Nature Communications
In this work authors show how minimal mutations in proline-rich antimicrobial peptides can flip their orientation in the ribosome exit tunnel, switching their mechanism from stalling translation termination to halting initiation - revealing a possible host strategy against evolving pathogens.
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Reposted by Haaris Ahsan Safdari
Science X / Phys.org @sciencex.bsky.social · 08/06/2026
A narrow ribosome tunnel can act as a checkpoint for bacterial protein production. Some peptides block it directly, while another can trigger a temporary pause under specific stress. doi.org/hb62q9
phys.org
Ribosome tunnel interactions reveal how bacteria can pause protein production
How do bacteria regulate the production of their proteins? Researchers at the University of Hamburg, in collaboration with international partners, have now demonstrated how small protein building blocks, known as peptides, specifically influence bacterial protein production.
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Reposted by Haaris Ahsan Safdari
Haaris Ahsan Safdari @haarissafdari.bsky.social · 19/06/2026
🚨 Nature Reviews Microbiology highlights our Nature paper on Manikomycin. A new antibiotic scaffold targeting the ribosomal E-site → new mechanism against drug-resistant bacteria. www.nature.com/articles/s41...
nature.com
A new antibiotic scaffold hits a new target - Nature Reviews Microbiology
This study describes the discovery of a new antibiotic with a previously unknown mode of action.
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Haaris Ahsan Safdari @haarissafdari.bsky.social · 19/06/2026
🚨 Nature Reviews Microbiology highlights our Nature paper on Manikomycin. A new antibiotic scaffold targeting the ribosomal E-site → new mechanism against drug-resistant bacteria. www.nature.com/articles/s41...
nature.com
A new antibiotic scaffold hits a new target - Nature Reviews Microbiology
This study describes the discovery of a new antibiotic with a previously unknown mode of action.
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Reposted by Haaris Ahsan Safdari
Nature Microbiology @natmicrobiol.nature.com · 19/06/2026
#NatMicroPicks Hidden in plain sight! 💊🦠 Assessing overlooked minor compounds uncovered a new antibiotic, manikomycin, from well-studied Streptomyces species that kills bacteria by uniquely targeting the ribosomal E-site #MicroSky www.nature.com/articles/s41...
nature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
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Reposted by Haaris Ahsan Safdari
tempus fuckit @mahuga.bsky.social · 18/06/2026
Das hört sich nach einer sehr guten Nachricht an. #Antibiotika „Manikomycin is the first antibacterial agent, to our knowledge, to target the critical but underexplored E-site in the large ribosomal subunit, highlighting its value as a lead for developing new antibiotics.“
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Reposted by Haaris Ahsan Safdari
Haaris Ahsan Safdari @haarissafdari.bsky.social · 19/06/2026
🚨 Our Nature paper on Manikomycin is a Research Highlight in Nature Reviews Drug Discovery. A new antibiotic. A new ribosomal target (E-site). Activity against MDR pathogens. doi.org/10.1038/d415...
doi.org
New antibiotic targets novel ribosomal site
Discover the world’s best science and medicine | Nature.com
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Haaris Ahsan Safdari @haarissafdari.bsky.social · 19/06/2026
🚨 Our Nature paper on Manikomycin is a Research Highlight in Nature Reviews Drug Discovery. A new antibiotic. A new ribosomal target (E-site). Activity against MDR pathogens. doi.org/10.1038/d415...
doi.org
New antibiotic targets novel ribosomal site
Discover the world’s best science and medicine | Nature.com
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Reposted by Haaris Ahsan Safdari
Molecular Microbiology @molmicrounihoh.bsky.social · 11/06/2026
👉 A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome! www.nature.com/articles/s41... @nature.com #manik
nature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
032
Reposted by Haaris Ahsan Safdari
Haaris Ahsan Safdari @haarissafdari.bsky.social · 13/06/2026
An old microbe, a new antibiotic, and a new target. 🦠 Thrilled to see our @nature.com paper on Manikomycin featured in @science.org magazine blog. MKM is the first antibiotic shown to target the bacterial ribosome E-site. www.science.org/content/blog...
science.org
A New Antibiotic Idea From An Old Source
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Haaris Ahsan Safdari @haarissafdari.bsky.social · 13/06/2026
An old microbe, a new antibiotic, and a new target. 🦠 Thrilled to see our @nature.com paper on Manikomycin featured in @science.org magazine blog. MKM is the first antibiotic shown to target the bacterial ribosome E-site. www.science.org/content/blog...
science.org
A New Antibiotic Idea From An Old Source
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Reposted by Haaris Ahsan Safdari
Nature @nature.com · 05/06/2026
Researchers say they have used a precise genome-editing technique called base editing to alter the genome of human embryos for the first time, an announcement that prompted both excitement and dismay. go.nature.com/3RUBKD6
go.nature.com
First precise genome editing of human embryos triggers praise and alarm
The lead scientist on the use of ‘base editing’ in very early embryos say that the technique is far from ready for the clinic, but critics worry that the work will spur a rush to commercialization.
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Reposted by Haaris Ahsan Safdari
Nature @nature.com · 04/06/2026
Nature research paper: A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome go.nature.com/3RMNwPW
go.nature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of the bacterial large ribosomal subunit.
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Reposted by Haaris Ahsan Safdari
Animalcules @bacteriophile.bsky.social · 04/06/2026
www.nature.com/articles/s41... #microsky
nature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
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Reposted by Haaris Ahsan Safdari
Animalcules @bacteriophile.bsky.social · 04/06/2026
www.genengnews.com/topics/infec...
genengnews.com
New Antibiotic, Manikomycin, Acts on Novel Ribosomal Target
Researchers discover manikomycin, a novel antibiotic that kills drug-resistant bacteria by targeting a previously unknown ribosomal target.
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Reposted by Haaris Ahsan Safdari
Gorgias UrUrUrenkel📣🔊 @spatzlhirn.eurosky.social · 05/06/2026
🧪🦠 Streptomyces rimosus "Das Antibiotikum mit dem Namen Manikomycin wirkt gegen multiresistente Bakterien und könnte langfristig zur Entwicklung neuer Behandlungsoptionen beitragen" www.welt.de/gesundheit/a... 👇 www.nature.com/articles/s41...
welt.de
Antibiotika: Unerwarteter Wirkstoff gegen multiresistente Keime in längst erforschtem Bakterium gefunden - WELT
Ausgerechnet ein lange erforschter Mikroorganismus liefert einen bislang unbekannten Wirkstoff gegen multiresistente Keime. Manikomycin ist noch weit von der Klinik entfernt – zeigt aber, wo die Antib...
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Reposted by Haaris Ahsan Safdari
Wiep Klaas Smits (ExpBac/CMAT) @smitslab.bsky.social · 26/05/2026
Diverse mechanisms of translation arrest by a Clostridia ribosome stalling peptide CliM - pubmed.ncbi.nlm.nih.gov/42151144/
pubmed.ncbi.nlm.nih.gov
Diverse mechanisms of translation arrest by a Clostridia ribosome stalling peptide CliM - PubMed
Ribosome arrest peptides undergo programmed translational stalling in response to changes in the cellular environment to feedback-regulate gene expression. CliM, an arrest peptide in Clostridia, is en...
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Reposted by Haaris Ahsan Safdari
Haaris Ahsan Safdari @haarissafdari.bsky.social · 18/05/2026
New paper in @natcomms.nature.com! We show how the Clostridia peptide CliM acts as a molecular handbrake to monitor YidC activity. Cryo-EM & MD show it stalls the ribosome using diverse mechanisms until membrane insertion releases it. Paper: www.nature.com/articles/s41...
nature.com
Diverse mechanisms of translation arrest by a Clostridia ribosome stalling peptide CliM - Nature Communications
CliM is a ribosome arrest peptide in Clostridia. Here, the authors show that CliM adopts helices and extensively interacts with the ribosome. The penultimate residue sterically blocks A-site accommoda...
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Reposted by Haaris Ahsan Safdari
Wilson Lab @wilsonlab.bsky.social · 03/06/2026
www.nature.com/articles/s41...
nature.com
Flipping antimicrobial peptides in the exit tunnel of the bacterial ribosome - Nature Communications
In this work authors show how minimal mutations in proline-rich antimicrobial peptides can flip their orientation in the ribosome exit tunnel, switching their mechanism from stalling translation termi...
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Reposted by Haaris Ahsan Safdari
Frances Yap @ribo1214.bsky.social · 04/06/2026
🔽 (the first) ribosomal E-site targeting antibacterial; producer avoids self-toxicity by rRNA methylation. #Ribosome #AMR
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Reposted by Haaris Ahsan Safdari
Haaris Ahsan Safdari @haarissafdari.bsky.social · 03/06/2026
🚨 New in @natcomms.nature.com 🚨 Excited to share our paper on how proline-rich antimicrobial peptides interact with the bacterial ribosome. Using cryo-EM, we found that tiny sequence changes cause these peptides to "flip" orientation in the exit tunnel! 🔄🧫 Read: www.nature.com/articles/s41...
nature.com
Flipping antimicrobial peptides in the exit tunnel of the bacterial ribosome - Nature Communications
In this work authors show how minimal mutations in proline-rich antimicrobial peptides can flip their orientation in the ribosome exit tunnel, switching their mechanism from stalling translation termi...
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Reposted by Haaris Ahsan Safdari
Haaris Ahsan Safdari @haarissafdari.bsky.social · 03/06/2026
🚨 New in @natureportfolio.nature.com! 🚨 Excited to share our discovery of Manikomycin—a novel antibiotic tackling the AMR crisis! 🦠 Using cryo-EM, we found it’s the first-in-class to target the ribosomal E-site, blocking tRNA entry and beating multi-drug resistance. Read: doi.org/10.1038/s415...
doi.org
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
0114
Reposted by Haaris Ahsan Safdari
Gerry Wright @gdwantibiotics.bsky.social · 04/06/2026
The latest from the lab. Manikomycin, a new cyclic depsipeptide antibiotic from an 'old' source, the oxytetracycline producer Streptomyces rimosus. Still lots to be learned from this genus! Manikomycin blocks the E-site of the bacterial ribosome. A first. links.springernature.com/f/a/Q0JMeeZK...
links.springernature.com
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
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Haaris Ahsan Safdari @haarissafdari.bsky.social · 03/06/2026
🚨 New in @natureportfolio.nature.com! 🚨 Excited to share our discovery of Manikomycin—a novel antibiotic tackling the AMR crisis! 🦠 Using cryo-EM, we found it’s the first-in-class to target the ribosomal E-site, blocking tRNA entry and beating multi-drug resistance. Read: doi.org/10.1038/s415...
doi.org
A natural depsipeptide antibiotic binds the E-site of the bacterial ribosome - Nature
Improved fractionation strategies can identify antibiotics with previously unseen scaffolds and mechanisms, exemplified by manikomycin from Streptomyces rimosus, which acts by targeting the E-site of ...
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