Contacts of the helix formed by residues 398 - 421 (chain C) in PDB entry 2M6I


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 ILE 398 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239C  TRP*     3.4    38.0    -      -       +      -
    242C  PHE*     4.8     7.9    -      -       +      -
    243C  TRP*     3.4    42.0    -      -       +      -
    300C  GLU*     3.7    35.7    -      -       +      +
    396C  ASP*     4.5     4.0    -      -       -      -
    397C  LYS*     1.3    76.2    -      -       -      +
    399C  SER*     1.3    60.1    +      -       -      +
    400C  ARG      3.1     8.3    +      -       -      -
    401C  ILE*     3.3    21.7    -      -       +      +
    402C  GLY      3.4     3.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 399 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239C  TRP*     6.1     0.2    -      -       -      -
    240C  ILE*     5.9     0.9    -      -       -      -
    243C  TRP*     5.5     5.6    -      -       -      -
    396C  ASP*     3.3    19.0    +      -       -      +
    397C  LYS      3.3     0.2    -      -       -      -
    398C  ILE*     1.3    81.7    -      -       -      +
    400C  ARG*     1.3    62.4    +      -       -      +
    401C  ILE      3.3     1.1    -      -       -      -
    402C  GLY*     4.0     4.0    -      -       -      +
    403C  PHE*     3.2    53.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 400 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396C  ASP      4.5     2.9    +      -       -      +
    397C  LYS*     3.5    54.1    -      -       +      +
    398C  ILE      3.1     0.6    -      -       -      -
    399C  SER*     1.3    83.4    -      -       -      +
    401C  ILE*     1.3    62.2    +      -       +      +
    403C  PHE*     5.3     0.2    -      -       -      -
    404C  PRO*     3.0    20.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 401 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239C  TRP*     3.2    35.2    -      -       +      -
    296C  SER*     5.3     6.1    -      -       -      +
    300C  GLU*     5.7     0.4    -      -       -      +
    397C  LYS      5.1     3.1    -      -       -      +
    398C  ILE*     3.3    20.0    -      -       +      +
    400C  ARG*     1.3    86.4    -      -       +      +
    402C  GLY*     1.3    74.3    +      -       -      +
    403C  PHE      3.4     0.2    -      -       -      -
    404C  PRO*     3.3     6.6    -      -       -      +
    405C  LEU*     2.9    37.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 402 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239C  TRP*     4.1    19.3    -      -       -      -
    240C  ILE*     6.0     2.2    -      -       -      -
    398C  ILE      3.4     6.0    +      -       -      -
    399C  SER*     4.7     1.6    -      -       -      -
    401C  ILE*     1.3    91.0    -      -       -      +
    403C  PHE*     1.3    66.8    +      -       -      +
    405C  LEU*     2.9    22.1    +      -       -      +
    406C  ALA*     2.9    15.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 403 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240C  ILE*     3.4    33.4    -      -       +      -
    399C  SER*     3.2    34.6    +      -       -      +
    400C  ARG*     5.3     0.2    -      -       -      -
    402C  GLY*     1.3    77.6    -      -       -      +
    404C  PRO*     1.3    68.9    -      -       +      +
    405C  LEU      3.2     0.3    +      -       -      -
    406C  ALA*     3.3    11.8    +      -       -      +
    407C  PHE*     3.4    12.6    +      -       -      +
    306D  PHE*     6.2     4.0    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 404 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400C  ARG*     3.0    28.9    -      -       -      +
    401C  ILE*     3.3    12.3    -      -       -      +
    403C  PHE*     1.3    99.5    -      -       +      +
    405C  LEU*     1.3    57.8    +      -       -      -
    406C  ALA      3.4     0.2    -      -       -      -
    407C  PHE*     4.1     8.3    -      -       +      +
    408C  LEU*     3.3    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 405 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236C  ILE*     6.4     1.1    -      -       -      -
    239C  TRP*     5.1    23.8    -      -       +      +
    296C  SER*     5.4    10.5    -      -       -      +
    401C  ILE*     2.9    30.8    +      -       +      +
    402C  GLY*     2.9    13.5    +      -       -      +
    404C  PRO*     1.3    79.1    -      -       -      +
    406C  ALA*     1.3    69.3    +      -       +      +
    408C  LEU*     4.0     5.4    -      -       -      +
    409C  ILE*     3.4    38.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 406 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236C  ILE*     3.2    53.2    -      -       +      +
    402C  GLY      2.9    13.3    +      -       -      +
    403C  PHE*     3.3     6.0    +      -       -      +
    405C  LEU*     1.3    84.3    -      -       +      +
    407C  PHE*     1.3    59.2    +      -       -      +
    409C  ILE*     3.4     5.8    +      -       -      +
    410C  PHE*     3.0    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 407 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403C  PHE      3.4    12.2    +      -       -      +
    404C  PRO*     4.4     7.6    -      -       +      +
    406C  ALA*     1.3    76.4    -      -       -      +
    408C  LEU*     1.3    63.4    +      -       +      +
    410C  PHE*     4.4    15.7    -      +       -      -
    411C  ASN*     3.0    41.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 408 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    404C  PRO      3.3    19.6    +      -       -      +
    405C  LEU*     4.0     6.7    -      -       -      +
    406C  ALA      3.3     0.6    -      -       -      -
    407C  PHE*     1.3    82.3    -      -       +      +
    409C  ILE*     1.3    57.4    +      -       +      +
    411C  ASN*     3.8     2.8    -      -       -      +
    412C  LEU*     2.9    52.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 409 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232C  LEU*     3.2    32.5    -      -       +      -
    235C  VAL*     6.2     4.3    -      -       +      -
    236C  ILE*     6.3     2.5    -      -       +      -
    289C  VAL*     6.4     2.7    -      -       +      -
    405C  LEU*     3.4    32.8    +      -       +      +
    406C  ALA*     3.4     5.1    +      -       -      +
    407C  PHE      3.3     0.2    -      -       -      -
    408C  LEU*     1.3    80.2    -      -       +      +
    410C  PHE*     1.3    60.1    +      -       -      +
    412C  LEU*     3.5    11.8    -      -       +      +
    413C  PHE*     2.9    40.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 410 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229C  ILE*     3.6    31.4    -      -       +      -
    232C  LEU*     5.1    17.0    -      -       +      -
    233C  LEU*     5.6    15.3    -      -       +      -
    236C  ILE*     4.7    10.8    -      -       +      -
    406C  ALA      3.0    18.8    +      -       -      +
    407C  PHE*     4.0    16.8    -      +       -      +
    409C  ILE*     1.3    80.3    -      -       -      +
    411C  ASN*     1.3    59.4    +      -       -      +
    413C  PHE*     3.8     2.8    +      -       +      +
    414C  TYR*     3.1    41.2    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 411 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    407C  PHE*     3.0    37.9    +      -       +      +
    408C  LEU*     3.8     4.0    -      -       +      +
    410C  PHE*     1.3    75.9    -      -       -      +
    412C  LEU*     1.3    60.5    +      -       -      +
    413C  PHE      3.4     0.2    -      -       -      -
    414C  TYR*     3.9     8.3    -      -       -      +
    415C  TRP*     3.2    71.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 412 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408C  LEU*     2.9    46.3    +      -       +      +
    409C  ILE*     3.0    14.1    +      -       +      +
    411C  ASN*     1.3    80.5    -      -       -      +
    413C  PHE*     1.3    59.2    +      -       +      +
    415C  TRP*     5.2     0.7    -      -       -      -
    416C  ILE*     2.9    40.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 413 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228C  TYR*     3.6    35.9    -      +       -      -
    232C  LEU*     4.0    33.9    -      -       +      -
    285C  ILE*     5.0    15.9    -      -       +      -
    289C  VAL*     5.9     7.4    -      -       +      -
    409C  ILE*     2.9    26.0    +      -       +      +
    410C  PHE*     4.4     2.0    -      -       +      +
    412C  LEU*     1.3    79.0    -      -       +      +
    414C  TYR*     1.3    59.7    +      -       -      +
    416C  ILE*     4.0    10.8    -      -       +      -
    417C  ILE*     2.9    48.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 414 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  ILE*     6.3     1.8    -      -       +      -
    229C  ILE*     5.5     7.9    -      -       +      -
    410C  PHE*     3.1    38.6    +      +       +      +
    411C  ASN*     3.8     8.0    +      -       -      -
    412C  LEU      3.4     0.2    -      -       -      -
    413C  PHE*     1.3    77.9    -      -       -      +
    415C  TRP*     1.3    78.3    +      +       -      +
    417C  ILE*     3.7     5.4    +      -       +      +
    418C  TYR*     3.4    61.5    +      +       -      +
    430C  HIS*     5.0     0.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 415 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    411C  ASN*     3.2    47.7    +      -       -      +
    412C  LEU*     5.0     0.9    -      -       -      +
    414C  TYR*     1.3    92.0    -      +       -      +
    416C  ILE*     1.3    61.1    +      -       +      +
    418C  TYR*     3.7     1.4    +      -       -      +
    419C  LYS*     2.9    60.2    +      -       -      +
    430C  HIS*     3.8    32.5    -      +       +      -
    431C  HIS*     3.5    39.3    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 416 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412C  LEU*     2.9    34.6    +      -       +      +
    413C  PHE*     4.4    13.5    -      -       +      +
    414C  TYR      3.4     0.2    -      -       -      -
    415C  TRP*     1.3    79.3    -      -       +      +
    417C  ILE*     1.3    61.1    +      -       +      +
    419C  LYS*     3.7    14.3    -      -       +      +
    420C  ILE*     2.9    34.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 417 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  ILE*     3.5    66.2    -      -       +      +
    228C  TYR*     5.2     7.6    -      -       +      -
    413C  PHE*     2.9    40.7    +      -       +      +
    414C  TYR*     3.9     7.4    -      -       +      +
    415C  TRP      3.3     0.2    -      -       -      -
    416C  ILE*     1.3    80.7    -      -       +      +
    418C  TYR*     1.3    71.1    +      -       +      +
    419C  LYS      3.1     0.4    -      -       -      -
    420C  ILE*     3.0    23.3    -      -       +      +
    421C  VAL*     3.2    14.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 418 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  ILE*     5.6     3.8    -      -       +      -
    414C  TYR*     3.4    55.9    +      +       -      +
    415C  TRP      3.9     0.7    -      -       -      +
    417C  ILE*     1.3    91.2    -      -       +      +
    419C  LYS*     1.3    59.1    +      -       -      +
    421C  VAL*     4.4     6.6    -      -       -      +
    422C  ARG*     2.9    43.0    +      -       -      +
    428C  GLU*     4.7     0.7    -      -       -      +
    430C  HIS*     3.7    30.3    -      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 419 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415C  TRP*     2.9    58.8    +      -       -      +
    416C  ILE*     3.7    17.7    -      -       +      +
    417C  ILE      3.1     0.2    -      -       -      -
    418C  TYR*     1.3    78.2    -      -       -      +
    420C  ILE*     1.3    57.1    +      -       -      +
    421C  VAL      3.1     1.3    -      -       -      -
    422C  ARG*     2.7    27.3    +      -       -      +
    423C  ARG*     2.8    13.2    +      -       -      -
    425C  ASP*     4.7    10.0    -      -       -      +
    428C  GLU*     2.8    41.1    +      -       +      +
    430C  HIS*     4.4     2.1    -      -       +      +
    431C  HIS*     5.9     3.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 420 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  ILE*     6.2     1.6    -      -       +      -
    281C  LYS*     4.2    24.5    -      -       -      +
    416C  ILE*     2.9    22.2    +      -       +      +
    417C  ILE*     3.0    23.3    -      -       +      +
    419C  LYS*     1.3    75.8    -      -       -      +
    421C  VAL*     1.3    75.8    +      -       +      +
    422C  ARG      3.0     1.6    +      -       -      -
    423C  ARG*     3.3    18.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 421 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222C  TYR*     5.3    17.7    -      -       +      +
    225C  ILE*     5.5     6.5    -      -       +      -
    417C  ILE*     3.2    22.7    -      -       +      +
    418C  TYR*     4.5     8.5    -      -       -      +
    419C  LYS      3.1     0.6    -      -       -      -
    420C  ILE*     1.3    81.6    -      -       +      +
    422C  ARG*     1.3    69.3    +      -       +      +
----------------------------------------------------------
 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