An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
1 MRC Laboratory for Molecular Cell Biology and Department of Biology, University College London, Gower Street, London, WC1E 6BT, United Kingdom. a.harwood@ucl.ac.uk
1 MRC Laboratory for Molecular Cell Biology and Department of Biology, University College London, Gower Street, London, WC1E 6BT, United Kingdom. a.harwood@ucl.ac.uk