Contacts of the strand formed by residues 120 - 129 (chain G) in PDB entry 1KN0


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 TYR 120 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26F  PHE*     4.1    11.9    -      +       -      -
     85F  ALA*     2.8    47.0    -      -       +      +
     86F  HIS      3.1    34.4    +      -       -      -
     87F  SER*     3.8    14.8    +      -       -      -
    112F  ARG*     4.9     8.5    +      -       -      -
    114F  GLN*     3.7    29.0    +      -       -      +
    112G  ARG*     3.8    41.5    -      -       +      +
    113G  VAL      3.2    12.8    -      -       -      +
    114G  GLN*     4.3     2.0    -      -       +      -
    118G  GLY      3.3    19.1    -      -       -      +
    119G  SER*     1.3    79.8    +      -       -      +
    121G  HIS*     1.3    69.1    +      -       -      +
    158G  PHE*     4.7     2.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 121 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81F  TYR      4.1     5.4    -      -       -      -
     84F  TRP*     3.2    45.0    +      +       -      -
     86F  HIS*     2.8    41.1    -      +       +      +
    112G  ARG*     3.5     2.1    -      -       -      +
    113G  VAL*     2.7    37.1    +      -       +      +
    120G  TYR*     1.3    77.3    +      -       -      +
    122G  GLU*     1.3    58.2    +      -       -      +
    154G  ALA*     3.9    14.1    -      -       -      +
    157G  SER*     3.4    29.5    -      -       -      -
    158G  PHE*     3.2    45.4    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 122 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86F  HIS*     3.2    29.2    +      -       -      -
     87F  SER*     3.4    20.6    -      -       -      -
     88F  ILE*     2.8    54.2    +      -       +      +
    147F  VAL*     5.0     0.3    -      -       -      +
     89G  THR*     2.8    39.3    +      -       -      +
    110G  PHE*     4.1     6.2    -      -       +      +
    111G  VAL      3.2    15.7    -      -       -      +
    112G  ARG*     3.7    16.4    -      -       +      +
    121G  HIS*     1.3    76.4    -      -       -      +
    123G  ASP*     1.3    65.9    +      -       -      +
    154G  ALA*     4.5     1.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 123 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86F  HIS*     4.7     7.1    -      -       -      -
     88F  ILE*     3.9    10.5    -      -       -      -
    147F  VAL*     3.6    16.1    -      -       -      +
    148F  THR*     5.4     1.4    +      -       -      -
    109G  ALA      3.7     0.2    -      -       -      +
    110G  PHE*     3.4     3.3    -      -       -      +
    111G  VAL*     2.9    33.6    +      -       -      +
    122G  GLU*     1.3    77.3    -      -       -      +
    124G  VAL*     1.3    73.8    +      -       -      +
    150G  GLY*     4.3     2.4    -      -       -      +
    153G  ARG*     3.1    52.0    +      -       +      +
    154G  ALA*     3.8    22.6    -      -       +      +
    157G  SER*     4.7     2.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 124 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88F  ILE*     4.1     2.9    -      -       +      -
     91F  GLN*     3.7     9.2    -      -       -      +
    143F  ARG*     3.8    20.6    -      -       +      +
    144F  LYS*     4.3     7.5    -      -       +      -
    147F  VAL*     3.0    36.1    -      -       +      -
    108G  CYS*     4.5     7.9    -      -       +      -
    109G  ALA      3.4     6.3    -      -       -      +
    110G  PHE*     3.5    31.6    -      -       +      -
    123G  ASP*     1.3    81.9    +      -       -      +
    125G  GLY*     1.3    67.5    +      -       -      +
    126G  TYR*     5.8     0.4    -      -       +      -
    149G  ASP*     4.3     0.2    -      -       -      +
    150G  GLY*     4.0     1.8    -      -       -      -
    153G  ARG*     2.8    33.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 125 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144F  LYS*     4.6     0.9    -      -       -      -
    108G  CYS*     3.3     7.4    -      -       -      +
    109G  ALA      2.6    29.7    +      -       -      -
    124G  VAL*     1.3    76.8    -      -       -      +
    126G  TYR*     1.3    59.7    +      -       -      +
    146G  ALA      3.1    23.8    -      -       -      -
    149G  ASP*     3.4     6.1    -      -       -      -
    150G  GLY*     3.3    14.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 126 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136F  ALA      3.7    13.9    -      -       -      -
    139F  LEU*     3.2    22.0    -      -       +      +
    140F  GLU*     3.6    48.4    -      -       +      +
    143F  ARG*     3.6    15.0    -      -       +      -
    144F  LYS*     3.9     5.4    -      -       +      -
     94G  ASP*     2.4    35.2    +      -       -      +
     95G  PHE*     4.2     0.9    -      -       -      -
    106G  GLY*     3.6    10.1    -      -       -      -
    107G  VAL      3.2    19.3    -      -       -      -
    108G  CYS*     3.6    17.3    -      -       +      -
    124G  VAL*     5.8     0.7    -      -       +      -
    125G  GLY*     1.3    72.4    -      -       -      -
    127G  GLY*     1.3    79.0    +      -       -      +
    128G  VAL*     3.7    13.3    +      -       +      +
    145G  GLU*     4.2     2.4    -      -       -      +
    146G  ALA*     3.4     7.7    +      -       -      -
    149G  ASP*     2.9    21.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 127 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106G  GLY*     3.7     1.0    -      -       -      -
    107G  VAL      2.6    35.8    +      -       -      -
    126G  TYR*     1.3    74.5    -      -       -      +
    128G  VAL*     1.3    66.8    +      -       -      +
    142G  ALA*     3.1    28.8    -      -       -      +
    145G  GLU*     4.0     5.4    -      -       -      -
    146G  ALA*     3.3     9.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 128 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136F  ALA*     3.5    25.4    -      -       +      -
    137F  LEU*     4.5    11.0    -      -       +      -
    140F  GLU*     4.8     8.5    -      -       -      +
    105G  VAL      3.4     6.1    -      -       -      +
    126G  TYR*     3.7    20.2    -      -       +      +
    127G  GLY*     1.3    80.6    -      -       -      +
    129G  SER*     1.3    66.2    +      -       -      +
    130G  GLU*     3.4    28.7    -      -       +      +
    141G  LYS*     2.8    38.7    +      -       -      +
    142G  ALA*     3.9     4.6    -      -       -      +
    145G  GLU*     3.8     6.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 129 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103G  PHE      3.3     3.5    +      -       -      +
    104G  TYR*     3.4     0.2    -      -       -      -
    105G  VAL*     2.7    37.6    +      -       -      +
    128G  VAL*     1.3    78.6    -      -       -      +
    130G  GLU*     1.3    61.2    +      -       -      +
    131G  GLY      4.6     0.3    +      -       -      -
    132G  LEU*     3.8    14.2    -      -       -      +
    138G  SER*     3.1    50.3    +      -       -      -
    141G  LYS*     3.9    14.2    -      -       -      +
----------------------------------------------------------
 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