Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tension and chemical efficiency of Myosin-II motors   Recent experiments demonstrate that molecular motors from the Myosin II
family serve as cross-links inducing active tension in the cytoskeletal
network. Here we revise the Brownian ratchet model, previously studied in the
context of active transport along polymer tracks, in setups resembling a motor
in a polymer network, also taking into account the effect of electrostatic
changes in the motor heads. We explore important mechanical quantities and show
that such a model is also capable of mechanosensing. Finally, we introduce a
novel efficiency based on excess heat production by the chemical cycle which is
directly related to the active tension the motor exerts. The chemical
efficiencies differ considerably for motors with a different number of heads,
while their mechanical properties remain qualitatively similar. For motors with
a small number of heads, the chemical efficiency is maximal when they are
frustrated, a trait that is not found in larger motors.

22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph