Contacts of the helix formed by residues 2160 - 2172 (chain D) in PDB entry 2C5L


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with THR2160 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2158D  VAL      3.6     2.5    +      -       -      -
   2159D  SER*     1.3    76.1    -      -       -      +
   2161D  ALA*     1.3    60.8    +      -       -      +
   2162D  GLN*     3.4    15.7    -      -       +      +
   2163D  ASP*     3.0    55.1    +      -       -      +
   2164D  VAL*     3.0    15.4    +      -       -      +
   2215D  GLN*     2.9    51.6    +      -       -      +
   2216D  GLU      3.5     5.6    -      -       -      -
   2217D  CYS*     4.8     0.4    -      -       -      +
   2218D  VAL*     4.3     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA2161 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2160D  THR*     1.3    74.6    +      -       -      +
   2162D  GLN*     1.3    58.4    +      -       -      +
   2164D  VAL*     3.4     2.9    +      -       -      +
   2165D  ILE*     2.9    39.4    +      -       +      +
   2189D  LEU*     4.1    12.4    -      -       +      +
   2212D  LEU*     4.5    13.0    -      -       +      -
   2213D  LEU      3.6    24.2    -      -       -      +
   2214D  ASP*     3.7     3.6    -      -       -      +
   2216D  GLU      3.0    11.6    +      -       -      +
   2218D  VAL*     3.8    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN2162 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2160D  THR*     3.3    10.5    -      -       +      -
   2161D  ALA*     1.3    77.7    -      -       -      +
   2163D  ASP*     1.3    58.4    +      -       -      +
   2165D  ILE*     3.8     9.3    -      -       -      +
   2166D  GLN*     2.9    28.8    +      -       -      +
   2184D  PRO*     2.7    50.5    +      -       -      +
   2185D  SER*     3.3    15.2    +      -       -      +
   2187D  TYR      3.4    16.0    +      -       -      -
   2214D  ASP*     3.2    36.0    +      -       +      +
   2215D  GLN*     4.7     6.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP2163 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2158D  VAL      5.0     0.5    -      -       -      +
   2159D  SER*     3.9    15.9    +      -       -      +
   2160D  THR*     3.0    45.7    +      -       -      +
   2162D  GLN*     1.3    76.3    -      -       -      +
   2164D  VAL*     1.3    58.7    +      -       -      +
   2166D  GLN*     3.4     8.1    +      -       -      +
   2167D  GLN*     3.0    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL2164 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2137D  PHE*     5.3     0.4    -      -       +      -
   2139D  VAL*     4.4    17.0    -      -       +      -
   2141D  VAL*     4.1    22.4    -      -       +      -
   2153D  ILE*     4.6     5.3    -      -       +      +
   2155D  ALA*     4.6    12.6    -      -       +      -
   2159D  SER*     4.3    13.5    -      -       -      -
   2160D  THR      3.0    13.4    +      -       -      +
   2161D  ALA      3.8     6.1    -      -       -      +
   2163D  ASP*     1.3    72.0    -      -       -      +
   2165D  ILE*     1.3    59.7    +      -       -      +
   2167D  GLN*     3.1    10.3    +      -       -      +
   2168D  THR*     2.8    31.3    +      -       -      +
   2189D  LEU*     3.9    19.5    -      -       +      -
   2218D  VAL*     3.7    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE2165 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2161D  ALA*     2.9    27.8    +      -       +      +
   2162D  GLN*     3.8    14.1    -      -       -      +
   2164D  VAL*     1.3    75.2    -      -       -      +
   2166D  GLN*     1.3    56.9    +      -       -      +
   2168D  THR*     3.3     7.8    +      -       -      -
   2169D  LEU*     2.8    42.4    +      -       +      +
   2184D  PRO*     3.8    12.3    -      -       +      +
   2187D  TYR*     3.6    43.1    -      -       +      +
   2188D  VAL*     3.8    17.7    -      -       -      -
   2189D  LEU*     3.8    18.4    -      -       +      +
   2214D  ASP*     6.5     0.2    -      -       -      -
   2233D  LEU*     3.9    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN2166 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2162D  GLN      2.9    19.9    +      -       -      +
   2163D  ASP*     3.5     9.6    -      -       -      +
   2164D  VAL      3.2     0.4    -      -       -      -
   2165D  ILE*     1.3    78.0    -      -       -      +
   2167D  GLN*     1.3    62.4    +      -       +      +
   2169D  LEU*     3.4     5.5    +      -       -      +
   2170D  CYS*     3.2    46.1    +      -       -      -
   2182D  PRO      5.4     0.2    -      -       -      +
   2184D  PRO*     3.4    31.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN2167 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2153D  ILE*     3.5    23.5    -      -       +      +
   2154D  LYS      3.0    20.5    +      -       -      +
   2155D  ALA*     3.4    30.3    -      -       -      +
   2156D  PRO*     4.7     4.0    -      -       -      +
   2159D  SER*     4.6     5.1    +      -       -      -
   2163D  ASP*     3.0    21.1    +      -       -      +
   2164D  VAL*     3.1    11.6    +      -       -      +
   2166D  GLN*     1.3    78.8    -      -       +      +
   2168D  THR*     1.3    61.1    +      -       -      +
   2170D  CYS*     3.2    10.4    +      -       -      +
   2171D  LYS*     3.2    26.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR2168 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2141D  VAL*     3.5    23.8    -      -       +      +
   2144D  VAL*     3.7    35.4    -      -       +      +
   2151D  THR*     4.1     5.8    -      -       +      -
   2153D  ILE*     3.3    19.7    -      -       -      +
   2164D  VAL*     2.8    18.1    +      -       -      +
   2165D  ILE*     3.5    11.8    -      -       -      -
   2167D  GLN*     1.3    73.1    -      -       -      +
   2169D  LEU*     1.3    62.4    +      -       -      +
   2171D  LYS*     3.2     6.6    +      -       -      +
   2172D  ALA*     3.1    21.5    +      -       -      +
   2189D  LEU*     5.4     0.2    -      -       -      +
   2233D  LEU*     4.2    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU2169 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2165D  ILE*     2.8    27.5    +      -       +      +
   2166D  GLN*     4.0     6.3    -      -       -      +
   2167D  GLN      3.4     0.2    -      -       -      -
   2168D  THR*     1.3    73.4    -      -       -      +
   2170D  CYS*     1.3    62.6    +      -       -      +
   2172D  ALA      3.7     1.2    -      -       -      -
   2173D  LYS*     3.3    21.1    +      -       -      +
   2178D  ILE*     3.7    40.3    -      -       +      +
   2181D  ASN      4.4     1.8    -      -       -      +
   2182D  PRO*     4.0    13.0    -      -       +      +
   2183D  ASN      4.0     5.4    -      -       -      -
   2184D  PRO*     3.5    41.5    -      -       +      -
   2187D  TYR*     3.8    29.4    -      -       +      +
   2233D  LEU*     4.6     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS2170 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  ASP*     5.4     2.6    -      -       -      +
   2166D  GLN*     3.2    38.5    +      -       -      +
   2167D  GLN*     3.4    12.6    -      -       -      +
   2168D  THR      3.2     0.2    -      -       -      -
   2169D  LEU*     1.3    75.4    -      -       -      +
   2171D  LYS*     1.3    64.4    +      -       +      +
   2173D  LYS*     3.2    41.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS2171 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  ASP*     4.5    20.1    +      -       -      +
     34B  PRO      5.3     6.3    +      -       -      -
     35B  THR*     6.4     0.2    -      -       -      +
     36B  ILE*     5.2    10.1    -      -       -      +
     38B  ASP*     4.6     9.0    -      -       -      +
     40B  TYR*     5.6     1.4    +      -       -      -
   2148D  GLN*     4.4     9.7    -      -       -      +
   2151D  THR*     3.6    31.2    -      -       +      +
   2152D  VAL      3.7    18.3    +      -       -      -
   2153D  ILE*     3.7    18.2    -      -       +      +
   2154D  LYS      5.3     0.8    -      -       -      +
   2167D  GLN*     3.2    16.4    +      -       -      +
   2168D  THR*     3.2    11.4    +      -       -      +
   2170D  CYS*     1.3    79.7    -      -       +      +
   2172D  ALA*     1.3    58.4    +      -       +      +
   2173D  LYS*     3.2    11.2    +      -       -      +
   2174D  TYR*     4.7     4.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA2172 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2144D  VAL*     3.4    33.2    -      -       +      -
   2148D  GLN*     4.0    13.5    -      -       -      +
   2168D  THR      3.1     7.0    +      -       -      +
   2169D  LEU      3.7     3.6    -      -       -      -
   2170D  CYS      3.4     0.2    -      -       -      -
   2171D  LYS*     1.3    76.7    -      -       +      +
   2173D  LYS*     1.3    63.5    +      -       -      +
   2174D  TYR      2.9     5.0    +      -       -      +
   2175D  SER*     3.0    24.6    +      -       -      +
   2178D  ILE*     3.5    24.6    -      -       +      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il