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Katleen Willibal on Muck Rack

Katleen Willibal

As seen in: BioRxiv, eLife
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Articles

Mobile barrier mechanisms for Na+-coupled symport in an MFS sugar transporter

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By Parameswaran Hariharan, Yuqi Shi, Satoshi Katsube, Katleen Willibal
| eLife
Request a detailed protocol All cryoEM single-particle data processing was performed using CryoSPARC program (v. 2–4.01) (Figure 2—figure supplement 1). All imported movies were aligned using defaulted Patch Motion Correction and followed with defaulted Patch contrast transfer function (CTF) Estimation. Micrographs were then curated based on CFT Estimation, astigmatism, and ice thickness, which resulted in 13,649 and 7129 micrographs for the non-tilted and 30° tilted datasets, respectively.
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Mimicking the regulatory state of a major facilitator superfamily sugar transporter

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By Parameswaran Hariharan, Yuqi Shi, Satoshi Katsube, Katleen Willibal
| BioRxiv
Abstract While many 3D structures of cation-coupled transporters have been determined, the mechanistic details governing the obligatory coupling and functional regulations still remain elusive. The bacterial melibiose transporter (MelB) is a prototype of the Na+-coupled major facilitator superfamily transporters. With a conformational nanobody (Nb), we determined an inward-facing Na+-bound, low-sugar affinity cryoEM structure.
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