Data from: Metaproteomics reveals metabolic transitions between healthy and diseased stony coral Mussismilia braziliensis

Infectious diseases such as white plague syndrome (WPS) and black band
disease (BBD) have caused massive coral loss worldwide. We performed a
metaproteomic study on the Abrolhos coral Mussismilia braziliensis to
define the types of proteins expressed in healthy corals compared to WPS-
and BBD-affected corals. A total of 6363 MS/MS spectra were identified as
361 different proteins. Healthy corals had a set of proteins that may be
considered markers of holobiont homoeostasis, including tubulin, histone,
Rab family, ribosomal, peridinin–chlorophyll a-binding protein, F0F1-type
ATP synthase, alpha-iG protein, calmodulin and ADP-ribosylation factor.
Cnidaria proteins found in healthy M. braziliensis were associated with
Cnidaria–Symbiodinium endosymbiosis and included chaperones (hsp70, hsp90
and calreticulin), structural and membrane modelling proteins (actin) and
proteins with functions related to intracellular vesicular traffic (Rab7
and ADP-ribosylation factor 1) and signal transduction (14-3-3 protein and
calmodulin). WPS resulted in a clear shift in the predominance of
proteins, from those related to aerobic nitrogen-fixing bacteria (i.e.
Rhizobiales, Sphingomonadales and Actinomycetales) in healthy corals to
those produced by facultative/anaerobic sulphate-reducing bacteria (i.e.
Enterobacteriales, Alteromonadales, Clostridiales and Bacteroidetes) in
WPS corals. BBD corals developed a diverse community dominated by
cyanobacteria and sulphur cycle bacteria. Hsp60, hsp90 and
adenosylhomocysteinase proteins were produced mainly by cyanobacteria in
BBD corals, which is consistent with elevated oxidative stress in hydrogen
sulphide- and cyanotoxin-rich environments. This study demonstrates the
usefulness of metaproteomics for gaining better comprehension of coral
metabolic status in health and disease, especially in reef systems such as
the Abrolhos that are suffering from the increase in global and local
threatening events.