אירועים
אירועים והרצאות בפקולטה למדעי המחשב ע"ש הנרי ומרילין טאוב
יונתן סביר (מכון ויצמן למדע)
יום רביעי, 15.06.2011, 13:30
Molecular recognition plays a key role in processing information in
biological systems which rely on the ability of bio-molecules to
specifically recognize each other. However, the crowded biological
environment contains a vast variety of molecules that are often structurally
similar and may compete with the "right" target. Thus, the recognition
process is prone to false binding, which introduces errors and may impair
the proper information flow and must be taken into account in the design and
the evolution of molecular information channels. To evaluate the optimal
design of a molecular recognizer, we formulated molecular recognition as a
transmission of information via a noisy channel. Using this framework, I
will discuss few essential molecular recognition systems: 1) Decoding of
tRNA by the ribosome during translation 2) Homologous recombination, the
process in which two identical or similar DNA molecules exchange genetic
material and 3) CO2 fixation during photosynthesis which is mediated
by the enzyme Rubisco, probably the most abundant protein on Earth.