Contacts of the helix formed by residues 308 - 326 (chain A) in PDB entry 2NTZ


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 SER 308 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289A  ARG*     5.6     2.4    -      -       -      +
    307A  LEU*     1.3    69.4    -      -       -      +
    309A  LYS*     1.3    53.9    +      -       -      +
    310A  GLU*     2.6    28.3    +      -       -      +
    311A  LEU*     2.5    58.0    +      -       -      +
    312A  GLN*     3.4     1.7    +      -       -      +
      5U    T      3.6    21.3    +      -       -      -
      6U    G      5.9     3.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 309 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  LEU      3.2     7.3    +      -       -      +
    308A  SER*     1.3    69.3    +      -       -      +
    310A  GLU*     1.3    62.3    +      -       -      +
    312A  GLN*     3.9    25.1    -      -       +      +
    313A  GLU*     3.3    35.1    +      -       -      +
    316A  ASP*     5.1     1.0    +      -       -      -
    293B  LYS*     6.1     0.9    -      -       -      +
    298B  ARG*     5.8     1.3    -      -       -      +
      4U    G      5.0    12.6    -      -       -      +
      5U    T      3.5    15.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 310 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  SER*     2.6    19.8    +      -       -      +
    309A  LYS*     1.3    76.3    -      -       -      +
    311A  LEU*     1.3    74.3    +      -       -      +
    313A  GLU*     3.8     6.8    -      -       -      +
    314A  GLU*     3.0    36.0    +      -       +      +
    326B  SER*     5.7     0.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 311 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  LEU*     3.1    38.8    -      -       +      -
    308A  SER*     2.5    48.7    +      -       -      +
    310A  GLU*     1.3    80.8    -      -       -      +
    312A  GLN*     1.3    67.4    +      -       -      +
    314A  GLU*     2.9    14.3    -      -       -      +
    315A  LEU*     2.9    24.6    -      -       +      +
    300B  PHE*     5.0     0.9    -      -       +      -
    322B  ILE*     4.9    17.0    -      -       +      +
    323B  LEU*     5.7    10.1    -      -       +      -
    326B  SER*     4.6    14.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 312 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  LEU      5.4     2.7    -      -       -      +
    308A  SER      3.4     2.7    +      -       -      +
    309A  LYS*     3.9    28.9    -      -       +      +
    310A  GLU      3.3     0.2    -      -       -      -
    311A  LEU*     1.3    76.5    -      -       -      +
    313A  GLU*     1.3    56.2    +      -       -      +
    315A  LEU*     2.5    30.8    +      -       -      +
    316A  ASP*     2.7    26.3    +      -       -      +
    293B  LYS*     2.7    34.0    +      -       -      +
    295B  VAL*     4.4    10.1    -      -       -      +
    299B  ALA      5.5     0.6    -      -       -      -
    300B  PHE*     3.2    59.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 313 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  LYS*     3.3    29.0    +      -       -      +
    310A  GLU*     3.8     6.7    -      -       -      +
    312A  GLN*     1.3    77.7    -      -       -      +
    314A  GLU*     1.3    66.0    +      -       -      +
    316A  ASP*     3.4    10.2    +      -       -      -
    317A  ARG*     2.6    57.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 314 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310A  GLU*     3.0    26.2    +      -       +      +
    311A  LEU*     2.9    14.4    -      -       -      +
    312A  GLN      2.8     2.4    +      -       -      -
    313A  GLU*     1.3    83.4    -      -       -      +
    315A  LEU*     1.3    51.6    +      -       -      +
    317A  ARG*     3.8     1.2    -      -       -      +
    318A  MSE      2.6    58.4    +      -       -      +
    322B  ILE*     4.1    30.8    -      -       +      +
    325B  LYS*     4.9    13.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 315 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304A  PHE*     4.8     9.2    -      -       +      -
    311A  LEU*     2.9    18.6    -      -       +      +
    312A  GLN      2.5     7.7    +      -       -      +
    314A  GLU*     1.3    68.7    -      -       -      +
    316A  ASP*     1.3    59.8    +      -       -      +
    318A  MSE      2.6     8.2    +      -       -      -
    319A  ILE*     2.4    53.3    +      -       +      +
    300B  PHE*     3.6    33.0    -      -       +      -
    302B  TYR*     4.1     9.0    -      -       +      +
    318B  MSE      4.6     2.9    -      -       +      -
    319B  ILE*     4.2    24.2    -      -       +      -
    322B  ILE*     3.5    39.7    -      -       +      -
    323B  LEU*     5.8     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 316 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  LYS*     5.1     1.7    +      -       -      -
    312A  GLN*     2.7    43.8    +      -       -      +
    313A  GLU*     3.3    14.0    +      -       -      +
    315A  LEU*     1.3    75.9    -      -       -      +
    317A  ARG*     1.3    61.9    +      -       -      +
    319A  ILE*     3.8     5.9    -      -       -      +
    320A  GLY*     3.1    15.8    +      -       -      -
    281B  LEU*     5.5     4.3    -      -       -      +
    293B  LYS*     3.1    28.6    +      -       -      +
    302B  TYR*     2.6    28.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 317 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  GLU*     2.6    37.7    +      -       +      +
    314A  GLU      4.0     1.3    -      -       -      +
    316A  ASP*     1.3    73.4    -      -       -      +
    318A  MSE      1.3    59.1    +      -       -      +
    320A  GLY*     3.1     4.3    +      -       -      -
    321A  HIS*     2.6    34.9    +      -       +      +
    324A  ARG*     5.3    11.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 318 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314A  GLU*     2.6    45.3    +      -       -      +
    315A  LEU*     2.6     8.2    +      -       -      +
    317A  ARG*     1.3    75.9    -      -       -      +
    319A  ILE*     1.3    64.7    +      -       -      +
    321A  HIS*     3.0    34.5    +      -       +      +
    322A  ILE*     2.9    31.1    +      -       +      +
    318B  MSE      3.1    48.0    -      -       +      +
    322B  ILE*     5.1     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 319 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315A  LEU*     2.4    51.2    +      -       +      +
    316A  ASP*     3.8     5.4    -      -       -      +
    318A  MSE      1.3    66.3    -      -       -      -
    320A  GLY*     1.3    51.9    +      -       -      +
    322A  ILE*     3.2     7.7    +      -       -      +
    323A  LEU*     2.7    56.8    +      -       +      +
    281B  LEU*     4.9     4.9    -      -       +      -
    302B  TYR*     4.2    24.5    -      -       +      -
    304B  PHE*     3.8    22.4    -      -       +      -
    315B  LEU*     3.7    24.7    -      -       +      -
    318B  MSE      5.4     3.6    -      -       +      -
    319B  ILE*     3.9    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 320 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316A  ASP      3.1     7.9    +      -       -      -
    317A  ARG*     3.1     7.4    +      -       -      -
    319A  ILE*     1.3    77.0    -      -       -      +
    321A  HIS*     1.3    70.3    +      -       -      +
    323A  LEU*     4.1    10.8    -      -       -      -
    324A  ARG*     3.0    42.4    +      -       -      +
    281B  LEU*     5.9     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 321 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317A  ARG*     2.6    20.9    +      -       +      +
    318A  MSE      3.0    35.6    +      -       +      +
    320A  GLY*     1.3    79.0    -      -       -      +
    322A  ILE*     1.3    71.3    +      -       +      +
    324A  ARG*     2.9    22.2    +      -       +      +
    325A  LYS*     3.2     5.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 322 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318A  MSE      3.0    18.4    -      -       +      +
    319A  ILE*     3.5     7.0    -      -       -      +
    321A  HIS*     1.3    84.8    -      -       +      +
    323A  LEU*     1.3    68.2    +      -       -      +
    325A  LYS*     3.1    22.4    +      -       +      +
    326A  SER      3.8     1.0    +      -       -      -
    311B  LEU*     4.1    18.8    -      -       +      +
    314B  GLU*     3.5    46.2    -      -       +      +
    315B  LEU*     4.5    11.2    -      -       +      +
    318B  MSE      4.1    28.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 323 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319A  ILE*     2.7    45.3    +      -       +      +
    320A  GLY*     3.8     9.0    -      -       -      +
    322A  ILE*     1.3    73.3    -      -       -      +
    324A  ARG*     1.3    53.6    +      -       -      +
    326A  SER*     2.7    42.9    +      -       -      +
    281B  LEU*     4.1    26.7    -      -       +      +
    282B  TRP*     4.2    20.6    -      -       +      +
    284B  PHE*     5.6     4.5    -      -       +      -
    291B  ALA*     4.7    15.9    -      -       +      -
    304B  PHE*     4.4    14.8    -      -       +      -
    307B  LEU*     5.2     1.8    -      -       +      -
    311B  LEU*     4.5    22.6    -      -       +      +
    315B  LEU*     4.9     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317A  ARG*     5.3    11.5    +      -       -      +
    320A  GLY*     3.0    34.6    +      -       -      +
    321A  HIS*     2.9    19.5    +      -       +      +
    323A  LEU*     1.3    77.7    -      -       -      +
    325A  LYS*     1.3    61.5    +      -       -      +
    326A  SER*     2.9     2.5    +      -       -      -
    327A  LEU      3.2    14.0    +      -       -      +
    282B  TRP*     4.6    20.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321A  HIS*     3.2     5.1    +      -       +      +
    322A  ILE*     3.1    19.9    +      -       -      +
    323A  LEU      3.0     0.6    +      -       -      -
    324A  ARG*     1.3    76.8    -      -       -      +
    326A  SER*     1.3    66.0    +      -       -      +
    327A  LEU*     2.9     2.6    +      -       -      -
    314B  GLU*     4.1    24.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322A  ILE      3.8     0.8    +      -       -      -
    323A  LEU*     2.7    28.7    +      -       -      +
    324A  ARG      2.9     1.0    +      -       -      -
    325A  LYS*     1.3    73.5    -      -       -      +
    327A  LEU*     1.3    71.8    +      -       -      +
    282B  TRP*     4.0    22.2    -      -       -      -
    311B  LEU*     5.8     8.5    -      -       -      -
----------------------------------------------------------
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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