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RLRao Lab

Research

Four themes, each with a structure you can rotate: drag to turn, scroll to zoom.

01

Allostery and oxygen transport

How haemoglobin changes shape to pick up oxygen in the lungs and release it in tissues.

Haemoglobin is the textbook example of allostery: when one subunit binds oxygen, the others change shape too. We study variants that cause disease and design molecules that shift the balance.

  • High-resolution structures of variants
  • Time-resolved crystallography
  • Drug-like allosteric modulators

02

Viral enzymes as drug targets

Structures of viral proteases bound to inhibitors, to guide new antivirals.

We solve structures of viral proteases with fragments and drug candidates, and share them openly so that anyone can design better medicines.

03

AI-predicted structures

Testing and extending AlphaFold models — especially the floppy parts it cannot predict.

Prediction has changed our field. We combine AlphaFold models with NMR and cryo-EM to study disordered regions, like those of the tumour suppressor p53 (blue: confident; orange: disordered).

04

Fluorescent proteins as sensors

Engineering glowing proteins that light up when cells signal.

Starting from green fluorescent protein, we design sensors that change colour when calcium, voltage or a drug arrives, and solve their structures to see why they work.

Interactive · made with React Three Fiber

Watch a chain fold

Small proteins fold in millionths of a second. Here a chain of 58 amino acids, coloured from one end to the other, folds into a bundle of three helices, lets go, and folds again.

Drag to turn it. This animation was written for this page by Labsite’s assistant.