Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Survey of the didemnins: A class of depsipeptide natural products with
  promising biomedical applications   The didemnins represent a versatile class of depsipeptides of marine origin
and hold a great deal of potential for biomedical application. The biological
and geographical origins of the didemnins are reviewed in addition to the
chemical structures of the major didemnins. The biological mechanisms behind
the antiviral and anticancer effects of selected didemnins are summarized and
the special case of dehydrodidemnin B (Aplidin) is expounded upon including
structural characteristics, synthesis, pharmacological mechanism and a
discussion of its current clinical trials as an anticancer agent.

5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci