Contacts of the helix formed by residues 104 - 121 (chain C) in PDB entry 3C6Q


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 ASP 104 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103C  THR*     1.3    72.9    -      -       -      +
    105C  ASN*     1.3    58.0    +      -       -      +
    106C  TYR*     3.8     5.7    +      -       -      +
    107C  GLN*     3.2    41.8    +      -       +      +
    108C  ALA*     2.9    30.0    +      -       -      +
    278C  ASP*     3.9    27.7    +      -       -      +
    281C  VAL*     5.7     4.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 105 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89C  ASP      3.9     1.0    +      -       -      -
     90C  THR*     4.9     1.0    -      -       -      +
     91C  ASP      5.8     0.2    -      -       -      +
    100C  TYR*     3.3    23.4    +      -       -      -
    103C  THR*     3.1    16.0    +      -       -      +
    104C  ASP*     1.3    68.8    +      -       -      +
    106C  TYR*     1.3    59.9    +      -       -      +
    108C  ALA*     3.2     3.7    +      -       -      +
    109C  GLY*     2.8    25.8    +      -       -      -
    137C  ASN*     3.1    29.8    -      -       -      +
    140C  GLN*     2.9    39.5    +      -       +      +
    141C  ARG*     2.9    40.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 106 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  ASP*     3.8     5.3    +      -       -      +
    105C  ASN*     1.3    77.5    -      -       -      +
    107C  GLN*     1.3    72.1    +      -       -      +
    109C  GLY*     2.9     1.9    +      -       -      -
    110C  TYR*     2.7    56.6    +      +       +      +
    140C  GLN*     3.8    22.8    -      -       +      +
    143C  GLN*     3.7    11.9    -      -       +      -
    144C  GLY*     3.3    31.0    -      -       -      -
    147C  ASP*     2.6    37.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 107 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  ASP*     3.2    38.2    +      -       +      +
    106C  TYR*     1.3    93.0    -      -       -      +
    108C  ALA*     1.3    53.4    +      -       -      +
    110C  TYR*     3.5     6.4    -      -       -      +
    111C  THR*     2.7    40.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 108 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103C  THR*     4.3    11.0    -      -       +      -
    104C  ASP      2.9    18.5    +      -       -      +
    105C  ASN      3.6     4.0    -      -       -      +
    107C  GLN*     1.3    75.5    -      -       -      +
    109C  GLY*     1.3    65.4    +      -       -      +
    111C  THR*     3.4     0.8    +      -       -      -
    112C  ALA*     3.0    24.3    +      -       -      +
    215C  PHE*     3.8    24.7    -      -       +      -
    234C  MET*     3.6    21.7    -      -       +      +
    281C  VAL*     4.4    10.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 109 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105C  ASN      2.8    14.3    +      -       -      -
    106C  TYR      3.5     2.5    -      -       -      -
    108C  ALA*     1.3    74.4    -      -       -      +
    110C  TYR*     1.3    63.0    +      -       -      +
    112C  ALA*     3.2     5.7    +      -       -      +
    113C  GLY      2.9    18.0    +      -       -      -
    141C  ARG*     3.4    27.8    -      -       -      -
    145C  PHE*     3.4    16.6    -      -       -      +
    187C  PHE*     4.9     0.7    -      -       -      -
    215C  PHE*     4.1     5.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 110 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106C  TYR*     2.7    49.3    +      +       +      +
    107C  GLN*     3.5    11.4    -      -       -      +
    109C  GLY*     1.3    70.2    -      -       -      +
    111C  THR*     1.3    66.1    +      -       -      +
    113C  GLY*     2.7    14.9    +      -       -      -
    114C  LEU*     2.9    45.2    +      -       +      +
    144C  GLY      3.3    22.1    -      -       -      +
    147C  ASP*     4.0     6.8    +      -       +      -
    148C  ALA*     3.5    26.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 111 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107C  GLN*     2.7    28.5    +      -       -      +
    108C  ALA*     3.6     5.0    -      -       -      -
    110C  TYR*     1.3    74.4    -      -       -      +
    112C  ALA*     1.3    60.5    +      -       -      +
    114C  LEU*     3.3    17.0    +      -       +      +
    115C  ILE*     2.9    32.2    +      -       +      +
    234C  MET*     3.8     8.2    -      -       +      +
    283C  VAL*     3.8    28.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 112 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108C  ALA      3.0    17.8    +      -       -      +
    109C  GLY*     3.6     5.2    -      -       -      +
    111C  THR*     1.3    73.2    -      -       -      +
    113C  GLY*     1.3    61.6    +      -       -      +
    115C  ILE*     3.0    13.3    +      -       -      +
    116C  MET*     2.8    27.5    +      -       -      +
    145C  PHE*     4.5     2.0    -      -       -      -
    187C  PHE*     4.0    17.0    -      -       +      -
    213C  VAL*     4.0    18.1    -      -       +      +
    215C  PHE*     4.6     0.7    -      -       +      -
    234C  MET*     3.7    22.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 113 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109C  GLY      2.9     8.1    +      -       -      -
    110C  TYR      2.7    12.7    +      -       -      -
    112C  ALA*     1.3    68.2    -      -       -      +
    114C  LEU*     1.3    58.3    +      -       -      -
    116C  MET*     3.2     2.4    +      -       -      +
    117C  LYS*     2.9    31.0    +      -       -      +
    145C  PHE*     3.5    26.6    -      -       -      -
    148C  ALA*     4.0    13.9    -      -       -      -
    149C  ILE*     3.8     7.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 114 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110C  TYR*     2.9    49.7    +      -       +      +
    111C  THR*     3.4    15.5    -      -       +      +
    113C  GLY*     1.3    74.6    -      -       -      +
    115C  ILE*     1.3    63.2    +      -       +      +
    117C  LYS*     3.5    16.2    +      -       +      +
    118C  GLU*     3.0    23.4    +      -       -      +
    148C  ALA*     3.7    15.5    -      -       +      +
----------------------------------------------------------
 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
----------------------------------------------------------
    111C  THR*     2.9    23.7    +      -       +      +
    112C  ALA*     3.0    14.1    +      -       -      +
    114C  LEU*     1.3    74.7    -      -       +      +
    116C  MET*     1.3    65.8    +      -       -      +
    118C  GLU*     3.2     6.0    +      -       -      +
    119C  LEU*     3.0    40.2    +      -       +      +
    213C  VAL*     4.3     4.7    -      -       +      -
    232C  ALA*     3.8    26.9    -      -       +      -
    234C  MET*     5.1     4.3    -      -       -      -
    283C  VAL*     4.3    26.7    -      -       +      -
    285C  THR*     6.2     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 116 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112C  ALA      2.8    11.2    +      -       -      +
    113C  GLY      3.4     7.2    -      -       -      +
    115C  ILE*     1.3    72.7    -      -       -      +
    117C  LYS*     1.3    68.1    +      -       -      +
    119C  LEU*     2.9     7.0    +      -       -      +
    120C  LEU*     2.8    43.4    +      -       +      +
    126C  VAL*     4.2     6.1    -      -       +      -
    145C  PHE*     3.9    23.1    -      -       +      -
    149C  ILE*     5.1     1.1    -      -       +      -
    154C  ILE*     4.9     3.6    -      -       +      -
    185C  ALA*     3.4    27.1    -      -       +      -
    186C  PHE      3.3    28.0    -      -       -      +
    187C  PHE*     3.9    15.7    -      -       +      -
    211C  LYS*     5.0     3.4    -      -       -      -
    213C  VAL*     3.4    32.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 117 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113C  GLY      2.9    21.0    +      -       -      +
    114C  LEU*     3.6    16.2    -      -       +      +
    116C  MET*     1.3    72.2    -      -       -      +
    118C  GLU*     1.3    64.9    +      -       -      +
    120C  LEU      3.4     0.2    +      -       -      -
    121C  GLY*     2.9     4.2    +      -       -      -
    122C  GLY*     2.8    40.2    +      -       -      -
    148C  ALA      4.4    11.7    +      -       -      +
    149C  ILE*     4.7     6.3    -      -       +      +
    151C  ASP*     2.8    40.0    +      -       -      +
    152C  SER*     4.6     8.3    -      -       -      +
    154C  ILE*     3.8    16.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 118 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114C  LEU      3.0    13.1    +      -       -      +
    115C  ILE*     3.4    11.2    -      -       -      +
    116C  MET      3.1     0.2    -      -       -      -
    117C  LYS*     1.3    78.1    -      -       -      +
    119C  LEU*     1.3    80.3    +      -       +      +
    121C  GLY*     2.9    15.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 119 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  ILE*     3.0    25.1    +      -       +      +
    116C  MET*     2.9     7.8    +      -       -      +
    118C  GLU*     1.3    96.0    -      -       +      +
    120C  LEU*     1.3    63.8    +      -       +      +
    211C  LYS*     3.9    41.2    +      -       +      +
    213C  VAL*     3.8    28.5    -      -       +      -
    231C  GLN*     3.8    28.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 120 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  MET*     2.8    23.6    +      -       +      +
    119C  LEU*     1.3    78.1    -      -       +      +
    121C  GLY*     1.3    61.2    -      -       -      +
    123C  LYS*     3.6    25.6    -      -       -      +
    124C  GLY*     4.7     2.9    -      -       -      -
    126C  VAL*     3.8    26.2    -      -       +      -
    154C  ILE*     3.6    28.3    -      -       +      -
    184C  ASP*     3.9    36.1    -      -       +      +
    185C  ALA*     4.0     7.9    -      -       +      -
    211C  LYS*     4.1    14.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 121 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117C  LYS      2.9     5.4    +      -       -      -
    118C  GLU*     2.9     9.6    +      -       -      -
    120C  LEU*     1.3    76.5    -      -       -      +
    122C  GLY*     1.3    58.9    +      -       -      +
    123C  LYS*     3.0    19.3    +      -       -      +
----------------------------------------------------------
 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