(A) Experimental scheme of T-DRYP isolation from tardigrade
lysate. (B) SDS-PAGE image of the resolubilized fractions with 0%, 10%,
or 20% TFE treatment. (C) Comparison of the unstructured score
distributions between all tardigrade proteins and T-DRYPs. (D)
Enrichment analysis of the PANTHER protein class in T-DRYPs. Ribosomal
proteins and cytoskeletal proteins were significantly enriched. The
numbers of the corresponding proteins detected in T-DRYPs and all
tardigrade proteomes are shown on the right, respectively. (E)
Enrichment analysis of stress-related proteins in T-DRYPs. CAHS proteins
were significantly enriched in T-DRYPs. (F) Venn diagram of T-DRYPs
classified by up- or down-regulation upon desiccation in orthologs of 2
other tardigrade species. (G) Comparison of unstructured score
distributions among the differently regulated protein groups in T-DRYPs.
“Up-regulated” and “down-regulated” indicate up-regulated or
down-regulated proteins in both species, respectively. Proteins
up-regulated upon desiccation exhibited higher unstructured scores. Red
and 2 black horizontal bars in violin plot indicate the 50th, 25th, and
75th percentiles, respectively. Statistical analyses were performed with
the Wilcoxon rank sum test in (C) and the Steel–Dwass test in (G). The
underlying numerical data are available in S4
Data (C, D, and G) in S2 Data (E) and in S1
Data (F). CAHS, cytoplasmic-abundant heat-soluble; T-DRYP,
TFE-dependent reversibly condensing protein; TFE, trifluoroethanol.