Contacts of the helix formed by residues 108 - 122 (chain C) in PDB entry 6N0M


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 ALA 108 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106C  PRO      4.3     0.4    +      -       -      -
    107C  LEU*     1.3    72.7    -      -       -      +
    109C  SER*     1.3    56.1    +      -       -      +
    110C  SER*     3.3    12.6    -      -       -      +
    111C  TRP*     2.8    36.2    +      -       +      +
    112C  ARG*     3.0     9.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 109 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  LEU      3.6     5.0    +      -       -      -
    102C  HIS*     5.3     0.3    -      -       -      -
    107C  LEU      3.7     1.2    +      -       -      -
    108C  ALA*     1.3    72.7    -      -       -      +
    110C  SER*     1.3    64.4    +      -       -      +
    112C  ARG*     3.2    31.4    +      -       -      +
    113C  HIS*     2.9    49.0    +      -       -      -
    139C  THR*     3.5    20.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 110 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108C  ALA*     4.2     8.7    -      -       -      +
    109C  SER*     1.3    75.8    -      -       -      +
    111C  TRP*     1.3    70.1    +      -       -      +
    113C  HIS*     3.5     0.3    +      -       -      +
    114C  TYR*     3.0    23.0    +      -       -      +
    136C  PHE*     3.3    18.0    -      -       -      -
    139C  THR*     3.5    21.2    +      -       -      +
    140C  GLY      4.6     2.9    -      -       -      -
    141C  GLY*     3.8    29.4    -      -       -      -
    145C  TRP*     5.2     2.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 111 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107C  LEU*     4.3    21.1    -      -       +      -
    108C  ALA*     2.8    28.6    +      -       +      +
    110C  SER*     1.3    81.8    +      -       -      +
    112C  ARG*     1.3    59.4    +      -       -      +
    114C  TYR*     3.2     7.4    +      -       -      +
    115C  ILE*     2.9    37.6    +      -       +      +
    145C  TRP*     3.4    27.0    -      +       -      -
    153C  PRO*     4.0    21.1    -      -       +      -
    155C  LYS*     3.8    48.2    -      -       +      -
    156C  LEU*     3.1    32.9    -      -       +      +
    187C  HIS*     6.2     0.2    -      -       +      -
    189C  TRP*     4.8     2.2    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 112 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  LEU      2.6    26.0    +      -       -      +
    101C  LEU*     3.7    11.1    +      -       +      +
    102C  HIS*     4.2     1.0    -      -       -      +
    103C  THR      3.1    42.4    +      -       -      +
    104C  ASP*     4.5     1.6    -      -       -      +
    105C  GLY*     4.0    10.3    -      -       -      +
    107C  LEU*     2.6    41.8    +      -       +      +
    108C  ALA*     3.0     7.1    +      -       -      +
    109C  SER*     3.2    37.1    +      -       -      +
    111C  TRP*     1.3    76.1    -      -       -      +
    113C  HIS*     1.3    58.8    +      -       +      +
    115C  ILE*     3.3     6.4    +      -       -      +
    116C  ALA*     3.0    27.3    +      -       -      +
    196C  GLN*     3.2    28.7    -      -       -      +
    200C  LEU*     3.9    24.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 113 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  LEU*     3.6    32.4    +      -       +      +
    102C  HIS*     4.4     2.4    +      +       -      -
    109C  SER*     2.9    41.7    +      -       -      +
    110C  SER      3.9     3.6    -      -       -      +
    112C  ARG*     1.3    74.0    -      -       +      +
    114C  TYR*     1.3    64.4    +      -       -      +
    116C  ALA*     3.2     6.5    +      -       -      +
    117C  ILE*     3.0    27.5    +      -       -      +
    132C  HIS*     3.2    27.7    +      -       +      +
    135C  GLU*     3.6    33.4    +      -       +      +
    136C  PHE*     3.9    21.8    -      -       -      +
    139C  THR*     4.0    15.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 114 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110C  SER      3.0    17.1    +      -       -      +
    111C  TRP      3.2     4.9    +      -       -      +
    113C  HIS*     1.3    75.0    -      -       -      +
    115C  ILE*     1.3    62.9    +      -       -      +
    117C  ILE*     3.0    19.0    +      -       +      +
    118C  MET*     3.0    36.8    +      -       +      +
    136C  PHE*     4.1    13.4    -      +       +      -
    145C  TRP*     2.9    53.9    +      +       +      -
    146C  LEU*     4.4     3.8    -      -       +      -
    148C  GLY      3.1    15.1    +      -       -      -
    149C  LEU*     3.6    19.2    -      -       +      -
    152C  ALA*     3.7    20.4    -      -       +      -
    156C  LEU*     3.4    25.1    -      -       +      -
    315C  PHE*     3.3    26.6    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 115 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107C  LEU*     3.6    30.5    -      -       +      -
    111C  TRP*     2.9    23.8    +      -       +      +
    112C  ARG*     3.4     9.2    -      -       -      +
    114C  TYR*     1.3    75.3    -      -       -      +
    116C  ALA*     1.3    58.7    +      -       -      +
    118C  MET*     3.0    11.6    +      -       -      +
    119C  ALA*     2.8    27.2    +      -       -      +
    156C  LEU*     4.5    14.8    -      -       +      -
    159C  LEU*     3.8    24.9    -      -       +      -
    189C  TRP*     4.4     6.5    -      -       +      -
    197C  ALA*     4.3     4.9    -      -       +      +
    200C  LEU*     4.0    22.4    -      -       +      -
    201C  LEU*     3.7    25.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 116 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  LEU*     4.4     4.9    -      -       +      -
    112C  ARG      3.0    13.0    +      -       -      +
    113C  HIS*     3.4     9.6    -      -       -      +
    115C  ILE*     1.3    79.2    -      -       -      +
    117C  ILE*     1.3    55.3    +      -       -      +
    119C  ALA*     3.7     3.4    +      -       -      +
    120C  ALA*     2.9    29.3    +      -       -      +
    132C  HIS*     3.3    34.0    -      -       +      +
    200C  LEU*     4.7     2.7    -      -       +      +
    204C  CYS*     3.4    25.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 117 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113C  HIS      3.0    19.4    +      -       -      +
    114C  TYR*     3.0    21.3    +      -       +      +
    116C  ALA*     1.3    73.0    -      -       -      +
    118C  MET*     1.3    58.0    +      -       -      +
    120C  ALA*     3.1     5.0    +      -       -      +
    121C  ALA*     2.7    37.6    +      -       -      +
    129C  VAL*     3.7    28.3    -      -       +      +
    132C  HIS*     3.8    15.9    -      -       +      +
    133C  MET*     3.7    32.5    -      -       +      +
    136C  PHE*     4.4     2.7    -      -       +      -
    146C  LEU*     4.1    14.1    -      -       +      -
    315C  PHE*     3.9    30.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 118 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114C  TYR*     3.0    43.7    +      -       +      +
    115C  ILE*     3.0    15.7    +      -       -      +
    117C  ILE*     1.3    78.9    -      -       +      +
    119C  ALA*     1.3    62.7    -      -       -      +
    121C  ALA*     3.3    10.1    +      -       -      +
    122C  ARG*     3.4     8.3    +      -       -      +
    149C  LEU*     3.8    16.6    -      -       +      -
    156C  LEU*     3.5    30.5    -      -       -      +
    159C  LEU*     4.4     8.3    -      -       +      -
    160C  SER*     3.6    32.1    -      -       -      +
    163C  ASN*     3.3    21.1    +      -       +      +
    201C  LEU*     5.0     1.8    -      -       +      -
    315C  PHE*     4.0    19.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 119 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  ILE      2.8    14.6    +      -       -      +
    116C  ALA*     3.7     0.9    -      -       -      +
    118C  MET*     1.3    77.0    -      -       -      +
    120C  ALA*     1.3    62.4    +      -       -      +
    122C  ARG*     3.3    12.8    +      -       -      +
    123C  HIS*     4.3     1.4    +      -       -      -
    163C  ASN*     3.5    13.2    -      -       -      +
    201C  LEU*     3.6    38.3    -      -       +      +
    204C  CYS*     3.7    17.3    -      -       +      -
    205C  HIS*     3.2    18.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 120 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  ALA      2.9    20.3    +      -       -      +
    117C  ILE      3.7     3.1    -      -       -      +
    119C  ALA*     1.3    72.9    -      -       -      +
    121C  ALA*     1.3    66.8    +      -       -      +
    123C  HIS*     3.0    13.9    +      -       -      +
    125C  CYS*     3.4    19.0    +      -       +      +
    128C  LEU*     3.6    31.0    -      -       +      -
    129C  VAL*     3.7    16.2    -      -       +      +
    204C  CYS*     4.3     3.3    -      -       +      +
    208C  SER*     3.9    11.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 121 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117C  ILE      2.7    21.4    +      -       -      +
    118C  MET      3.3     6.9    +      -       -      +
    120C  ALA*     1.3    72.5    -      -       -      +
    122C  ARG*     1.3    54.0    +      -       -      +
    124C  GLN*     2.8    33.1    +      -       -      +
    125C  CYS      4.8     0.2    -      -       -      +
    129C  VAL*     3.7    10.5    -      -       +      +
    312C  MET*     3.9    14.3    -      -       +      +
    315C  PHE*     3.6    26.0    -      -       +      -
    316C  VAL*     3.6    16.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 122 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118C  MET      3.4     0.6    +      -       -      +
    119C  ALA      3.3    13.5    -      -       -      +
    120C  ALA      3.1     0.6    +      -       -      -
    121C  ALA*     1.3    78.1    -      -       -      +
    123C  HIS*     1.3    60.6    +      -       +      +
    124C  GLN*     3.8     2.9    +      -       -      +
    160C  SER      5.3     1.0    +      -       -      -
    163C  ASN*     3.4    36.3    -      -       -      +
    164C  LYS*     3.8    21.5    -      -       -      +
    167C  ALA*     4.0    10.8    -      -       +      -
    168C  HIS*     3.3    51.2    +      -       -      +
    205C  HIS*     4.0     3.8    -      -       -      +
    316C  VAL*     3.7    20.4    -      -       -      +
    317C  GLU      2.9    28.5    +      -       -      -
    318C  ASP      3.4    15.3    +      -       -      -
    319C  PRO      3.7    16.2    +      -       -      +
    321C  PHE*     3.6    14.6    +      -       -      +
    433C  GLU*     4.3     1.7    -      -       -      +
----------------------------------------------------------
 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