User profiles for Klaus Hahn

Klaus M Hahn

Professor of Pharmacology, University of North Carolina Chapel Hill
Verified email at med.unc.edu
Cited by 20989

A genetically encoded photoactivatable Rac controls the motility of living cells

…, A Jaehrig, I Schlichting, B Kuhlman, KM Hahn - Nature, 2009 - nature.com
The precise spatio-temporal dynamics of protein activity are often critical in determining cell
behaviour, yet for most proteins they remain poorly understood; it remains difficult to …

Coordination of Rho GTPase activities during cell protrusion

…, O Pertz, P Nalbant, A Abell, GL Johnson, KM Hahn… - Nature, 2009 - nature.com
The GTPases Rac1, RhoA and Cdc42 act together to control cytoskeleton dynamics 1 , 2 , 3
. Recent biosensor studies have shown that all three GTPases are activated at the front of …

Spatiotemporal dynamics of RhoA activity in migrating cells

O Pertz, L Hodgson, RL Klemke, KM Hahn - Nature, 2006 - nature.com
Rho family GTPases regulate the actin and adhesion dynamics that control cell migration.
Current models postulate that Rac promotes membrane protrusion at the leading edge and …

Localized Rac activation dynamics visualized in living cells

…, GM Bokoch, MA Schwartz, S Slabaugh, KM Hahn - Science, 2000 - science.org
Signaling proteins are thought to be tightly regulated spatially and temporally in order to
generate specific and localized effects. For Rac and other small guanosine triphosphatases, …

Amiloride inhibits macropinocytosis by lowering submembranous pH and preventing Rac1 and Cdc42 signaling

…, M Kim, T Alexander, N Touret, KM Hahn… - Journal of Cell …, 2010 - rupress.org
Macropinocytosis is differentiated from other types of endocytosis by its unique susceptibility
to inhibitors of Na + /H + exchange. Yet, the functional relationship between Na + /H + …

Labelling and optical erasure of synaptic memory traces in the motor cortex

…, F Shirai, YI Wu, AL Loshbaugh, B Kuhlman, KM Hahn… - Nature, 2015 - nature.com
Dendritic spines are the major loci of synaptic plasticity and are considered as possible
structural correlates of memory. Nonetheless, systematic manipulation of specific subsets of …

Hippocampal changes in patients with a first episode of major depression

…, G Leinsinger, R Bottlender, K Hahn… - American Journal of …, 2002 - Am Psychiatric Assoc
OBJECTIVE: Previous work suggests that patients with unipolar depression may have
structural as well as functional abnormalities in limbic-thalamic-cortical networks, which are …

An orally bioavailable chemical probe of the lysine methyltransferases EZH2 and EZH1

…, SV Frye, CH Arrowsmith, KM Hahn… - ACS chemical …, 2013 - ACS Publications
EZH2 or EZH1 is the catalytic subunit of the polycomb repressive complex 2 that catalyzes
methylation of histone H3 lysine 27 (H3K27). The trimethylation of H3K27 (H3K27me3) is a …

Activation of endogenous Cdc42 visualized in living cells

…, L Hodgson, V Kraynov, A Toutchkine, KM Hahn - Science, 2004 - science.org
Signaling proteins are tightly regulated spatially and temporally to perform multiple functions.
For Cdc42 and other guanosine triphosphatases, the subcellular location of activation is a …

[PDF][PDF] Differential regulation of protrusion and polarity by PI (3) K during neutrophil motility in live zebrafish

SK Yoo, Q Deng, PJ Cavnar, YI Wu, KM Hahn… - Developmental cell, 2010 - cell.com
Cell polarity is crucial for directed migration. Here we show that phosphoinositide 3-kinase (PI(3)K)
mediates neutrophil migration in vivo by differentially regulating cell protrusion and …