Solitonic Excitations in an inhomogenous DNA with flexible strands

by Dr. M. Vanitha (Bharathidasan University)

Wednesday, January 4, 2012 from 15:30 to 16:30 (Asia/Kolkata)
at Colaba Campus ( 304 )

Description

Base pair opening in an inhomogenous double helical molecular chain
with flexible strands is studied by solving the governing dynamical
equations analytically and numerically. The results show that
inhomogeneity in stacking and hydrogen bonds in localized and periodic
forms and the helicity do not alter the amplitude of the bubble
soliton. However the flexibility of the strands makes the amplitude to
damp. On the otherhand the velocity of the bubble soliton is
unaltered. Further the above effects introduce small fluctuation in
the tail of the bubble soliton without affecting the robust nature of
the soliton during propagation.