Author

Fernando H Ramirez-Guadiana

Harvard Medical SchoolORCID 0000-0002-2814-5274Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

Click to filter author papers

Signature Assays, Organisms & Methods

Click to filter · or open tag

Organism:bacteria (other)· 2 Approach:experimental assay· 2 Research Focus:protein structure prediction· 2 Assay:cryo-EM· 1 Assay:protein structure· 1

Frequent Co-Authors

David Z. RudneriD· 2 shared Andrew C. KruseiD· 1 shared Briana L. SobecksiD· 1 shared Emily P BalskusiD· 1 shared Gerardo E ZavalaiD· 1 shared Jeremy D. AmoniD· 1 shared José A VelillaiD· 1 shared Josefina Inés del MármoliD· 1 shared

Activity by Year

2026-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 25 mutual co-author links

Click any collaborator node to inspect or filter shared papers

Focal author (center)Selected co-authorORCID co-authorUnlinked name

Curved chords = mutual co-authorship

2 shared papersMicrobiology

David Z. RudnerORCID

Mutual co-authors in cluster

Author profile →

2 papers

Recent·Most cited

MicrobiologybioRxivPreprintNov 2, 2026

Structure of Bacillus cereus ZmaM, a peptidase-ABC transporter that secretes and activates zwittermicin A

Gerardo E Zavala, José A Velilla, Richard M Walsh…·Rachelle Gaudet

The paper structures ZmaM, a type II peptidase-ABC transporter in B. cereus, showing it activates and exports zwittermicin A by coordinating peptidase and transporter modules.

DOI 10.64898/2026.10.31.763113

bacteria (other)protein structure

𝕏 PostBluesky

BiophysicsbioRxivPreprintAug 27, 2026

Structural basis for nutrient-activated channel opening in bacterial spore germination receptors

Joshua C. Cofsky, Fernando H. Ramírez‐Guadiana, Briana L. Sobecks…·Andrew C. Kruse

The paper reports cryo-EM structures of GerA, revealing how nutrient binding triggers channel opening through allosteric switches and subunit interactions.

DOI 10.64898/2026.08.27.747515

bacteria (other)cryo-EM

𝕏 PostBluesky