Related Experiment Video
Updated: May 7, 2026

Mapping and Application of Enhancer-trap Flippase Expression in Larval and Adult Drosophila CNS
Published on: June 3, 2011
Flipping MLL1's switch one proline at a time
Edward J Grow1, Joanna Wysocka
1Department of Genetics, Stanford University, Stanford, CA 94305, USA.
Abstract:
The MLL1 (mixed lineage leukemia 1) protein, which is often disrupted in leukemia, both activates and represses Hox genes during hematopoiesis. Now, Wang et al. (2010) demonstrate that the cyclophilin CyP33 underpins this regulatory switch by altering the state of MLL1 through cis-trans proline isomerization in the linker region between MLL1's third PHD finger and bromodomain.
More Related Videos
10:31Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability
Published on: February 3, 2022
08:27Visualization and Quantification of Endogenous Intra-Organelle Protein Interactions at ER-Mitochondria Contact Sites by Proximity Ligation Assays
Published on: October 20, 2023
Related Concept Videos
Restarting Stalled Replication Forks
Mechanism of Lamellipodia Formation
Membrane Asymmetry Regulating Transporters
Flippase
Eukaryotic flippases are type-IV P-type ATPases or P4-ATPases belonging to P-type ATPase family proteins that are membrane-bound pumps involved in the ATP-mediated transport of ions and molecules across the membrane. Flippases flip specific phospholipids from the outer to the inner leaflet of a membrane. All P4-ATPases have one...