Contacts of the helix formed by residues 314 - 326 (chain B) in PDB entry 6T2C


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 ASN 314 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68B  PRO*     3.4    23.4    -      -       +      +
     69B  ILE*     3.4    28.6    -      -       +      +
     81B  GLY      5.3     1.6    -      -       -      +
    312B  ASN      3.3     7.4    +      -       -      +
    313B  GLN*     1.3    71.8    -      -       -      +
    315B  PRO*     1.3    75.0    -      -       -      +
    316B  ARG*     3.2    35.4    +      -       -      +
    317B  ILE*     3.3    20.8    +      -       +      +
    318B  PHE*     3.2    14.4    -      -       -      -
    404B  SER      3.8     1.2    -      -       -      +
    405B  PRO*     3.3    24.3    -      -       -      +
    406B  GLY      3.5     2.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 315 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313B  GLN      4.1     3.1    -      -       -      +
    314B  ASN*     1.3    94.9    -      -       -      +
    316B  ARG*     1.3    58.9    +      -       -      +
    318B  PHE*     3.1    16.2    +      -       +      +
    319B  LEU      2.9    21.8    +      -       -      -
    341B  PRO*     3.5    29.0    -      -       +      +
    344B  PHE*     3.8    22.4    -      -       +      +
    345B  SER*     3.9    11.7    -      -       -      +
    347B  LYS*     4.1     4.7    -      -       -      +
    404B  SER      3.7    12.6    -      -       -      +
    406B  GLY      4.3     4.0    -      -       -      +
    407B  MET*     3.7    19.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 316 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  GLN      3.3    18.4    +      -       -      -
    218A  SER*     3.4    14.0    -      -       -      +
    219A  LEU      2.9    40.4    +      -       -      +
    220A  PRO*     4.6     2.3    -      -       +      +
    229A  PHE*     5.1     3.6    -      -       -      -
     65B  GLN*     4.0     9.5    +      -       -      +
     66B  LEU      3.9     9.5    +      -       -      -
     67B  ASN*     3.1    37.5    +      -       -      +
     69B  ILE*     3.7    17.2    -      -       +      +
    314B  ASN*     3.2    19.9    -      -       -      +
    315B  PRO*     1.3    73.0    -      -       -      +
    317B  ILE*     1.3    61.2    +      -       -      +
    319B  LEU*     3.2    10.3    +      -       -      +
    320B  ALA*     3.0    27.4    +      -       -      +
    345B  SER*     3.3    22.9    +      -       -      +
    404B  SER*     3.1    25.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 317 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69B  ILE*     3.8    38.4    -      -       +      -
     83B  ALA*     3.9    25.6    -      -       +      +
     85B  THR*     4.5     9.6    -      -       -      +
     88B  VAL*     3.8    35.2    -      -       +      -
    313B  GLN*     6.1     1.1    -      -       +      -
    314B  ASN*     3.3    18.6    +      -       +      +
    315B  PRO      3.2     0.2    -      -       -      -
    316B  ARG*     1.3    77.1    -      -       -      +
    318B  PHE*     1.3    60.3    +      -       +      +
    320B  ALA*     3.3     4.8    +      -       -      +
    321B  MET*     2.9    35.3    +      -       -      +
    419B  LEU*     4.6    12.6    -      -       +      -
    473B  VAL      5.0     3.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 318 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313B  GLN*     3.4    43.5    -      -       +      -
    314B  ASN      3.2    25.1    -      -       -      -
    315B  PRO*     3.1    15.7    +      -       +      +
    317B  ILE*     1.3    79.6    -      -       +      +
    319B  LEU*     1.3    56.9    +      -       -      +
    321B  MET*     3.6    14.6    -      -       -      +
    322B  VAL*     2.9    34.1    +      -       -      +
    341B  PRO*     4.1    10.3    -      -       +      -
    407B  MET*     3.6    22.9    -      -       +      -
    412B  PHE*     4.3    12.3    -      +       +      -
    415B  LEU*     3.6    40.6    -      -       +      -
    416B  SER*     3.7    16.2    -      -       -      -
    419B  LEU*     5.3     6.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 319 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  SER*     3.3    25.4    -      -       -      +
    219A  LEU*     4.0    15.9    -      -       +      -
    220A  PRO*     6.0     0.2    -      -       +      -
    226A  TYR*     4.7     4.0    -      -       +      -
    229A  PHE*     4.4     8.1    -      -       +      -
    315B  PRO      2.9     8.4    +      -       -      +
    316B  ARG*     3.2    10.7    +      -       -      +
    318B  PHE*     1.3    74.4    -      -       -      +
    320B  ALA*     1.3    60.1    +      -       -      +
    322B  VAL*     3.4     3.7    +      -       +      +
    323B  LEU*     2.9    46.0    +      -       +      +
    338B  ALA*     3.6    43.1    -      -       +      +
    341B  PRO*     3.8    18.3    -      -       +      +
    342B  ILE*     4.1    16.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 320 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  PRO*     5.9     0.2    -      -       +      -
    229A  PHE*     3.9    25.9    -      -       +      -
    233A  VAL*     4.7     0.7    -      -       -      -
     85B  THR*     4.0    17.0    -      -       -      +
     88B  VAL*     5.1     5.8    -      -       +      -
     89B  LEU*     3.7    18.3    -      -       +      +
    316B  ARG      3.0    12.7    +      -       -      +
    317B  ILE*     3.3     9.8    +      -       -      +
    319B  LEU*     1.3    76.1    -      -       -      +
    321B  MET*     1.3    57.3    +      -       -      +
    323B  LEU*     3.5     3.2    +      -       -      +
    324B  ARG*     2.9    30.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 321 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88B  VAL*     3.8    17.5    -      -       +      -
     89B  LEU*     5.7     0.2    -      -       -      -
     92B  ILE*     4.1    18.8    -      -       +      -
    317B  ILE*     2.9    22.8    +      -       -      +
    318B  PHE*     3.6    20.2    -      -       -      +
    319B  LEU      3.2     0.2    -      -       -      -
    320B  ALA*     1.3    77.3    -      -       -      +
    322B  VAL*     1.3    60.9    +      -       +      +
    324B  ARG*     3.2     4.5    +      -       -      +
    325B  ILE*     2.9    38.3    +      -       +      +
    415B  LEU*     3.6    37.7    -      -       +      +
    418B  VAL*     3.8    21.1    -      -       +      -
    419B  LEU*     4.0    28.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 322 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255B  VAL*     4.6    13.9    -      -       +      -
    258B  LEU*     5.3     9.4    -      -       +      -
    318B  PHE      2.9    23.6    +      -       -      +
    319B  LEU*     3.4    20.9    -      -       +      +
    321B  MET*     1.3    74.7    -      -       -      +
    323B  LEU*     1.3    54.2    +      -       -      +
    325B  ILE*     4.2     8.5    -      -       +      -
    326B  THR*     2.5    34.8    +      -       +      +
    334B  ARG      5.5     1.2    -      -       -      +
    337B  LEU*     3.9    27.6    -      -       +      +
    338B  ALA*     4.3     5.4    -      -       +      -
    341B  PRO*     4.3     6.1    -      -       +      -
    415B  LEU*     3.8    27.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 323 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226A  TYR*     4.0    29.4    -      -       +      +
    229A  PHE*     4.0    28.7    -      -       +      -
    230A  LYS*     4.0    28.5    -      -       +      -
    233A  VAL*     3.6    18.1    -      -       +      +
    319B  LEU*     2.9    32.3    +      -       +      +
    320B  ALA*     4.0     1.3    -      -       -      +
    322B  VAL*     1.3    81.7    -      -       -      +
    324B  ARG*     1.3    61.7    +      -       -      +
    325B  ILE      3.5     0.4    -      -       -      -
    326B  THR*     3.9     1.8    -      -       -      -
    327B  ALA*     3.8     4.7    +      -       -      +
    334B  ARG*     2.7    43.9    +      -       +      +
    338B  ALA*     4.3     8.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 324 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  VAL*     3.6    22.5    +      -       +      +
    234A  SER      6.0     0.8    -      -       -      -
    236A  PHE*     4.6    15.8    +      -       -      +
     89B  LEU*     3.9    21.0    +      -       +      +
     92B  ILE*     3.7    26.2    -      -       +      -
     93B  GLU*     3.5    40.0    +      -       -      +
     96B  ASP*     4.2    21.4    +      -       -      +
    103B  PHE*     4.9     3.8    -      -       -      -
    320B  ALA      2.9    18.8    +      -       -      +
    321B  MET*     3.2     3.3    +      -       -      +
    323B  LEU*     1.3    77.7    -      -       -      +
    325B  ILE*     1.3    63.1    +      -       -      +
    327B  ALA*     3.5    20.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 325 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92B  ILE*     4.1     9.4    -      -       +      -
    103B  PHE*     3.8    43.7    -      -       +      +
    104B  GLU*     5.0     2.3    -      -       -      +
    107B  CYS*     4.1    13.3    -      -       -      -
    258B  LEU*     4.1    19.5    -      -       +      -
    262B  ILE*     3.8    33.2    -      -       +      -
    321B  MET*     2.9    27.0    +      -       +      +
    322B  VAL*     4.5     6.7    -      -       -      -
    324B  ARG*     1.3    79.2    -      -       -      +
    326B  THR*     1.3    57.8    +      -       +      +
    327B  ALA*     3.2     6.9    +      -       -      +
    329B  GLN*     5.1     0.3    -      -       -      +
    415B  LEU*     4.7    14.1    -      -       +      -
    418B  VAL*     4.6    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 326 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107B  CYS*     3.7    20.0    -      -       -      -
    258B  LEU*     4.4     7.4    -      -       +      -
    322B  VAL      2.5    27.2    +      -       -      +
    323B  LEU*     3.9     2.1    -      -       -      -
    324B  ARG      3.4     0.2    -      -       -      -
    325B  ILE*     1.3    75.6    -      -       +      +
    327B  ALA*     1.3    61.7    +      -       -      +
    329B  GLN*     3.4    26.6    +      -       -      +
    333B  PHE*     3.8    17.3    -      -       +      -
    334B  ARG*     3.1    37.4    +      -       -      +
    337B  LEU*     4.1    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