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Table 1 Data set.

From: Structural adaptation of extreme halophilic proteins through decrease of conserved hydrophobic contact surface

  PDBa) Qb) Organismc) [NaCl]d) Survivale) Res(Å)f) Nameg) PDBa) Qb) Organismc) Res(Å)f) Sequence identity(%)h)
1 1DOI 1 Haloarcula marismortui (A) 3.4-3.9M Salt-in 1.90 Ferredoxin 1FXA 1 Anabaena sp. (B) 2.50 51%
2 1NWZ 1 Halorhodospira halophila (B) 1.5-5.1M Osmolytes 0.82 Photoreceptor 1MZU 1 Rhospirillum centenum (B) 2.00 46%
3 1TJO 12 Halobacterium salinarum (A) 3.9M Salt-in 1.60 DNA-protecting protein 2VXX 12 Thermosinechococcus elongatus (B) 2.40 36%
4 2B5W 2 Haloferax mediterranei (A) 3.4-4.3M Salt-in 1.60 Glucose dehydrogenase 2CD9 4 Sulfolobus solfatarius (A) 1.80 30%
5 2CC6 12 Halobacterium salinarum (A) 3.9M Salt-in 1.27 Dodecin 2V18 12 Thermus thermophilus (B) 2.59 42%
6 3IBM 2 Halorhodospira halophila (B) 1.5-5.1M Osmolytes 2.00 Cupin 2 domain-containing protein 3KGZ 2 Rhodopseudomonas palustris (B) 1.85 44%
7 1ITK 2 Haloarcula marismortui (A) 3.4-3.9M Salt-in 2.00 Catalase-peroxidase 2FXG 2 Burkolderia pseudomallei (B) 2.00 60%
8 2AZ3 6 Halobacterium salinarum (A) 3.9M Salt-in 2.20 Nucleoside diphosphate kinase 3B54 6 Saccharomyces cerevisiae (B) 3.10 54%
9 2J5K 4 Haloarcula marismortui (A) 3.4-3.9M Salt-in 1.95 Malate dehydrogenase 1Y6J 2 Clostridium thermocellum (B) 3.01 33%
10 1CNO 2 Marinobacter hydrocarbonoclasticus (B) 0.6-0.85M Osmolytes 2.20 Cytochrome c552 1ETP 1 Pseudomonas stutzeri (B) 2.20 47%
11 1NML 1 Marinobacter hydrocarbonoclasticus (B) 0.6-0.85M Osmolytes 2.20 Cytochrome c peroxidase 3HQ6 2 Geobacter sulfurreducens (B) 2.20 64%
12 2VPN 1 Halomonas elongata (B) 0.5-1.4 max 5.5M Osmolytes 1.55 Prisplasmic ectoin-binding protein 3FXB 1 Ruegeria pomeroyi (B) 2.90 62%
13 3IFV 3 Haloferax volcanii (A) 1.7M Salt-in 2.00 Proliferating cell nuclear antigen 1RWZ 3 Archaeglobus fulgidus (A) 1.80 36%
14 3IGN 1 Marinobacter aquaeloi vt8 (B) 0.6-0.85M Osmolytes 1.83 GGDEF domain 3I5C 2 Pseudomonas aeruginosa pao1 (B) 1.94 40%
15 3BSM 8 Chromohalobacter salexigens (B) 1.2-1.7M Osmolytes 2.20 D-mannonate dehydratase 2QJJ 8 Novosphingobium aromaticivorans (B) 1.80 66%
  1. List of protein pairs utilized in the work. Boldfaced PDB codes indicate extreme halophiles.
  2. a) Protein Data Bank code
  3. b) Number of monomers in the biological unit
  4. c) Source organisms. (A) = Archaea; (B) = Bacteria
  5. d) Optimal range of NaCl concentration for growth. The first 9 lines contain structures from extreme halophiles; the remaining 6 lines report moderate halophiles.
  6. e) The survival strategy adopted by corresponding organism: "salt-in" or "osmolytes" strategy
  7. f) Crystallographic resolution
  8. g) Protein name as reported in the Protein Data Bank
  9. h) Sequence percentage of identity between protein pairs