Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Limited Resources Induce Bistability in Microtubule Length Regulation   The availability of protein is an important factor for the determination of
the size of the mitotic spindle. Involved in spindle-size regulation is
kinesin-8, a molecular motor and microtubule (MT) depolymerase, which is known
to tightly control MT length. Here, we propose and analyze a theoretical model
in which kinesin-induced MT depolymerization competes with spontaneous
polymerization while supplies of both tubulin and kinesin are limited. In
contrast to previous studies where resources were unconstrained, we find that,
for a wide range of concentrations, MT length regulation is bistable. We test
our predictions by conducting in vitro experiments, and find that the bistable
behavior manifests in a bimodal MT length distribution.

21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
18
The categories of this paper are: econ