Contacts of the helix formed by residues 332 - 350 (chain A) in PDB entry 6T8B


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 332 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330A  SER*     4.1     2.9    +      -       -      -
    331A  TYR*     1.3    73.6    -      -       -      +
    333A  PRO*     1.3    71.1    -      -       -      +
    334A  GLU*     3.2    21.0    +      -       -      +
    335A  SER*     2.9    29.4    +      -       -      -
    336A  LEU*     3.1     8.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 333 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  TYR      3.7     3.0    -      -       -      +
    332A  SER*     1.3    85.8    -      -       -      +
    334A  GLU*     1.3    68.5    +      -       -      +
    336A  LEU*     3.7    16.5    -      -       +      +
    337A  GLU*     2.9    41.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 334 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  SER*     3.2    24.3    +      -       -      +
    333A  PRO*     1.3    85.7    -      -       -      +
    335A  SER*     1.3    58.0    +      -       -      +
    337A  GLU*     3.8     8.6    -      -       -      +
    338A  ALA*     2.9    28.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 335 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  TYR*     5.2    12.7    -      -       -      -
    332A  SER*     2.9    20.4    +      -       -      -
    334A  GLU*     1.3    78.6    -      -       -      +
    336A  LEU*     1.3    59.8    +      -       -      +
    338A  ALA*     3.3     8.4    +      -       -      +
    339A  MET*     2.9    37.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 336 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  TYR*     3.7    48.7    -      -       +      +
    332A  SER      3.1     9.1    +      -       -      +
    333A  PRO*     3.7    16.8    -      -       +      +
    334A  GLU      3.3     0.4    -      -       -      -
    335A  SER*     1.3    76.9    -      -       -      +
    337A  GLU*     1.3    56.9    +      -       +      +
    339A  MET*     3.4     6.2    +      -       -      +
    340A  SER*     2.8    32.8    +      -       -      -
    359A  VAL*     4.3    26.2    -      -       +      -
    361A  PRO*     4.3    24.2    -      -       +      -
    366A  THR*     4.5    10.3    -      -       +      -
    368A  PHE*     4.0     8.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 337 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333A  PRO*     2.9    27.3    +      -       +      +
    334A  GLU*     3.8     7.1    -      -       -      +
    336A  LEU*     1.3    74.8    -      -       +      +
    338A  ALA*     1.3    66.5    +      -       -      +
    340A  SER*     3.2     7.0    +      -       -      -
    341A  ARG*     3.0    44.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 338 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334A  GLU      2.9    19.0    +      -       -      +
    335A  SER*     3.6     9.0    -      -       -      +
    337A  GLU*     1.3    77.2    -      -       -      +
    339A  MET*     1.3    56.1    +      -       -      +
    341A  ARG*     3.4     4.1    +      -       -      +
    342A  LEU*     2.9    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 339 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  TYR*     4.9    21.3    -      -       +      +
    335A  SER*     2.9    24.3    +      -       -      +
    336A  LEU*     3.8     5.2    -      -       -      +
    338A  ALA*     1.3    72.6    -      -       -      +
    340A  SER*     1.3    60.1    +      -       -      +
    342A  LEU*     3.7     9.0    -      -       +      +
    343A  LEU*     2.8    28.3    +      -       -      +
    368A  PHE*     3.7    31.9    -      -       +      -
    392A  LEU*     4.0    23.7    -      -       +      +
    393A  ALA*     6.1     2.2    -      -       +      +
    394A  VAL*     4.6    13.2    -      -       +      -
    413A  ILE*     4.3    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 340 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336A  LEU      2.8    24.0    +      -       -      -
    337A  GLU*     3.2     8.9    +      -       -      -
    339A  MET*     1.3    76.7    -      -       -      +
    341A  ARG*     1.3    72.5    +      -       -      +
    343A  LEU*     3.2     7.6    +      -       -      +
    344A  GLU*     3.0    26.9    +      -       -      +
    356A  VAL*     4.0    20.2    -      -       -      +
    359A  VAL*     3.3    14.4    -      -       -      +
    368A  PHE*     3.3    21.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 341 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337A  GLU*     3.0    41.4    +      -       -      +
    338A  ALA*     4.1     3.8    -      -       -      +
    340A  SER*     1.3    91.7    -      -       -      +
    342A  LEU*     1.3    57.2    +      -       -      +
    344A  GLU*     3.8    20.9    +      -       -      +
    345A  ILE*     2.9    40.3    +      -       +      +
    356A  VAL*     4.9    13.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 342 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338A  ALA      2.9    19.2    +      -       -      +
    339A  MET*     3.8     8.5    -      -       +      +
    341A  ARG*     1.3    75.9    -      -       -      +
    343A  LEU*     1.3    59.7    +      -       -      +
    345A  ILE*     4.7     5.2    -      -       +      +
    346A  LYS*     3.0    59.2    +      -       +      +
    391A  SER      4.7     7.9    -      -       -      +
    392A  LEU*     3.6    25.5    -      -       +      +
    393A  ALA      5.5     1.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 343 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339A  MET*     2.8    14.5    +      -       +      +
    340A  SER      3.2     7.4    +      -       -      +
    342A  LEU*     1.3    73.9    -      -       -      +
    344A  GLU*     1.3    59.8    +      -       -      +
    346A  LYS*     3.4     2.3    +      -       -      +
    347A  LEU*     2.9    40.1    +      -       +      +
    354A  VAL*     6.2     0.2    -      -       +      -
    356A  VAL*     4.2     6.7    -      -       +      -
    368A  PHE*     3.9    28.9    -      -       +      -
    370A  ILE*     3.8    28.0    -      -       +      -
    388A  LEU*     3.6    42.0    -      -       +      -
    392A  LEU*     3.8    21.9    -      -       +      +
    411A  ILE*     3.9    11.4    -      -       +      -
    413A  ILE*     5.5     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 344 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340A  SER      3.0    14.7    +      -       -      +
    341A  ARG*     3.3    24.8    +      -       -      +
    343A  LEU*     1.3    77.6    -      -       -      +
    345A  ILE*     1.3    62.9    +      -       +      +
    347A  LEU*     3.4     2.6    +      -       -      +
    348A  LYS*     2.9    29.4    +      -       +      +
    352A  VAL      5.1     0.2    -      -       -      +
    354A  VAL*     2.9    41.6    +      -       +      +
    355A  SER*     4.1    12.9    -      -       -      -
    356A  VAL*     4.6     9.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 345 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341A  ARG*     2.9    25.5    +      -       +      +
    342A  LEU*     4.3     6.5    -      -       +      +
    344A  GLU*     1.3    83.8    -      -       +      +
    346A  LYS*     1.3    65.8    +      -       +      +
    348A  LYS*     3.0    11.6    +      -       +      +
    349A  GLU*     3.0    37.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 346 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342A  LEU*     3.0    42.6    +      -       +      +
    343A  LEU*     4.1     2.0    -      -       -      +
    345A  ILE*     1.3    80.3    -      -       +      +
    347A  LEU*     1.3    60.5    +      -       -      +
    349A  GLU*     3.6    34.6    +      -       -      +
    350A  PHE*     3.1    28.0    -      -       +      -
    388A  LEU*     4.5     4.0    -      -       +      -
    391A  SER*     3.4    45.0    -      -       -      +
    371F  GLN*     5.7     5.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 347 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    343A  LEU*     2.9    30.5    +      -       +      +
    344A  GLU      3.8     3.4    -      -       -      +
    346A  LYS*     1.3    76.8    -      -       -      +
    348A  LYS*     1.3    65.0    +      -       -      +
    349A  GLU      3.1     0.2    -      -       -      -
    350A  PHE*     3.0    15.9    +      -       -      +
    352A  VAL*     3.3    28.8    +      -       +      +
    354A  VAL*     3.6    22.7    -      -       +      -
    370A  ILE*     4.1    20.4    -      -       +      -
    381A  ILE*     3.7    25.4    -      -       +      -
    384A  LEU*     3.8    16.6    -      -       +      -
    388A  LEU*     3.6    35.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 348 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    344A  GLU*     2.9    17.6    +      -       +      +
    345A  ILE*     3.0    15.7    +      -       +      +
    347A  LEU*     1.3    76.6    -      -       -      +
    349A  GLU*     1.3    62.8    +      -       -      +
    351A  GLY*     3.0    17.7    +      -       -      -
    352A  VAL      3.7     6.9    +      -       -      +
    353A  GLU*     3.9    44.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 349 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    345A  ILE*     3.0    24.7    +      -       +      +
    346A  LYS*     3.7    42.4    +      -       -      +
    347A  LEU      3.1     0.4    -      -       -      -
    348A  LYS*     1.3    78.0    -      -       -      +
    350A  PHE*     1.3    63.0    +      -       +      +
    351A  GLY      3.2     2.8    +      -       -      -
    373F  ALA      4.8     1.4    -      -       -      +
    374F  ALA*     3.8    35.2    -      -       +      +
    375F  GLY*     4.0    20.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 350 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    346A  LYS*     3.1    29.6    -      -       +      -
    347A  LEU*     3.0     9.3    +      -       +      +
    349A  GLU*     1.3    82.3    -      -       +      +
    351A  GLY*     1.3    54.9    +      -       -      +
    352A  VAL*     3.2    13.4    +      -       +      +
    380A  ARG*     5.7     0.9    +      -       -      -
    384A  LEU*     3.8    40.0    -      -       +      +
    387A  ASP*     3.7    33.9    -      -       +      -
    388A  LEU*     5.0     2.7    -      -       -      -
    390A  ARG*     5.3     2.2    -      -       -      -
    391A  SER*     5.5     3.1    -      -       -      -
    375F  GLY*     3.3    37.5    -      -       -      -
    376F  VAL      3.9    11.9    -      -       -      -
    377F  LYS*     4.2    16.8    -      -       +      -
----------------------------------------------------------
 Back to top of page


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