Contacts of the strand formed by residues 218 - 229 (chain A) in PDB entry 4TZ1


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 GLN 218 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198A  SER*     3.0    31.7    +      -       -      +
    199A  GLY      2.7    40.6    +      -       -      +
    216A  GLN*     3.4     4.8    -      -       -      +
    217A  GLN*     1.3    98.8    -      -       -      +
    219A  TRP*     1.3    70.1    +      -       -      +
    235A  ASN*     3.2    24.2    -      -       +      +
    236A  MET*     3.4     8.0    -      -       -      +
    498A  PHE*     3.6    19.5    -      -       +      -
    500A  GLN*     3.7    15.2    -      -       +      +
    541A  TYR*     2.6    31.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  TRP*     4.5     4.3    -      +       -      -
    172A  VAL*     3.8    20.0    -      -       +      -
    176A  ALA      5.8     0.2    -      -       -      -
    189A  LEU*     3.7    36.1    -      -       +      -
    199A  GLY*     3.9     1.3    -      -       -      -
    200A  GLY*     3.5    25.6    -      -       -      +
    201A  TYR      3.3    17.7    -      -       -      -
    202A  ILE*     3.5    32.3    -      -       +      +
    216A  GLN*     3.6    32.5    -      -       +      -
    218A  GLN*     1.3    83.1    -      -       -      +
    220A  TYR*     1.3    92.9    +      -       -      +
    221A  THR*     3.4    11.6    +      -       -      -
    229A  TRP*     4.0    19.7    -      +       +      -
    235A  ASN      2.9     8.7    +      -       -      +
    236A  MET*     3.7    13.5    -      -       +      +
    237A  THR      2.9    28.1    +      -       -      +
    498A  PHE*     3.6     9.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  GLY      3.1    12.5    +      -       -      +
    201A  TYR*     3.4    20.0    -      +       +      -
    202A  ILE      3.0    22.9    +      -       -      +
    219A  TRP*     1.3    83.1    +      -       -      +
    221A  THR*     1.3    74.4    +      -       -      +
    222A  ARG*     3.3    25.5    -      -       +      +
    237A  THR*     3.5    11.2    -      -       +      -
    239A  SER*     2.8    25.6    +      -       -      -
    475A  THR*     3.3    28.8    -      -       -      +
    476A  GLY*     3.7    27.4    -      -       -      -
    478A  PHE*     5.1     0.2    -      -       +      -
    497A  ILE*     3.7    23.2    -      -       +      +
    498A  PHE*     3.6    31.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  ILE*     3.2    17.2    -      -       +      +
    219A  TRP*     3.4    20.1    +      -       -      -
    220A  TYR*     1.3    76.8    -      -       -      +
    222A  ARG*     1.3    64.0    +      -       -      +
    224A  SER*     3.9    20.0    -      -       -      +
    226A  VAL*     5.1     4.5    -      -       +      -
    229A  TRP*     3.5    20.6    -      -       +      -
    237A  THR      3.1     6.1    +      -       -      -
    238A  PHE*     3.3    15.7    -      -       +      -
    239A  SER      3.1    21.8    +      -       -      -
    241A  VAL*     3.4    26.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  ARG*     3.7     5.7    -      -       -      +
    201A  TYR*     3.5     6.7    +      -       +      +
    202A  ILE      3.0     9.0    +      -       -      +
    203A  ALA*     3.3    15.3    -      -       +      +
    204A  ASP      3.2     9.2    +      -       -      +
    220A  TYR*     3.3    34.1    -      -       +      +
    221A  THR*     1.3    73.4    -      -       -      +
    223A  ASP*     1.3   107.1    +      -       -      +
    224A  SER*     2.8    13.9    +      -       -      -
    239A  SER*     3.1    12.8    -      -       -      +
    241A  VAL*     4.1     0.7    -      -       -      -
    260A  THR*     3.8    12.3    -      -       -      +
    263A  SER*     3.7     9.7    -      -       -      -
    264A  ARG      4.2     6.7    +      -       -      -
    265A  GLU*     2.9    40.2    +      -       -      -
    441A  ASP*     2.9    42.6    +      -       -      -
    475A  THR*     4.2     2.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  ASP*     2.8    26.3    +      -       -      -
    222A  ARG*     1.3    97.4    +      -       -      +
    224A  SER*     1.3    54.7    +      -       -      +
    239A  SER      2.9     8.4    +      -       -      +
    240A  GLY*     3.3     8.7    +      -       -      -
    260A  THR*     2.6    26.5    +      -       -      -
    263A  SER*     2.7    29.1    +      -       -      -
    265A  GLU*     4.3     0.2    -      -       -      +
    284A  ARG*     3.7     7.9    -      -       -      +
    287A  ALA*     3.3    27.4    -      -       -      +
    289A  GLY      3.4    22.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  ILE*     3.9     9.8    -      -       -      +
    203A  ALA      3.6     2.4    -      -       -      -
    204A  ASP      3.2     2.3    +      -       -      -
    205A  SER*     3.1    27.0    +      -       -      +
    207A  ILE*     5.6     0.4    -      -       -      -
    221A  THR*     3.9    19.7    -      -       -      -
    222A  ARG      2.8    19.9    +      -       -      -
    223A  ASP*     1.3    73.8    +      -       -      +
    225A  SER*     1.3    63.1    +      -       -      +
    226A  VAL*     5.4     1.8    -      -       -      -
    240A  GLY      3.3     3.8    +      -       -      -
    241A  VAL*     3.4     4.8    -      -       -      -
    242A  GLU      2.9    22.8    +      -       -      -
    289A  GLY*     3.5    13.6    -      -       -      -
    290A  THR*     4.1     4.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 225 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  SER      2.9     7.9    +      -       -      +
    206A  LYS*     3.3    26.5    -      -       -      +
    207A  ILE*     2.7    33.6    +      -       -      +
    224A  SER*     1.3    75.5    -      -       -      +
    226A  VAL*     1.3    65.7    +      -       -      +
    242A  GLU*     3.3    28.9    +      -       -      +
    289A  GLY*     5.6     0.2    -      -       -      -
    290A  THR*     4.4     3.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  ILE*     6.4     0.2    -      -       +      -
    207A  ILE*     3.3    16.2    -      -       +      -
    209A  GLY      4.6     0.2    -      -       -      +
    211A  VAL*     3.6    25.4    -      -       +      -
    221A  THR*     5.1     5.2    -      -       +      -
    224A  SER*     5.4     0.2    -      -       -      -
    225A  SER*     1.3    84.1    +      -       -      +
    227A  GLY*     1.3    60.9    +      -       -      +
    228A  GLY      3.4    23.3    -      -       -      +
    229A  TRP*     4.3    17.0    -      -       +      -
    241A  VAL*     4.5    11.9    -      -       +      -
    242A  GLU      2.9    14.3    +      -       -      +
    243A  GLY*     3.5    32.4    -      -       -      +
    244A  ALA*     4.2     2.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  ILE      3.0    13.3    +      -       -      -
    208A  ASP      3.6    14.1    -      -       -      -
    209A  GLY*     3.0    11.7    +      -       -      -
    226A  VAL*     1.3    72.6    -      -       -      +
    228A  GLY*     1.3    57.3    +      -       -      +
    243A  GLY*     4.9     3.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  GLY      3.4     4.8    +      -       -      -
    210A  GLU*     3.9    13.0    -      -       -      +
    211A  VAL*     2.9    21.0    +      -       -      +
    226A  VAL*     3.2    17.5    -      -       -      +
    227A  GLY*     1.3    78.6    -      -       -      +
    229A  TRP*     1.3    62.8    +      -       -      +
    243A  GLY      4.4     5.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    189A  LEU*     4.7     0.4    -      -       +      -
    202A  ILE*     5.2     1.3    -      -       +      -
    210A  GLU*     3.9     3.0    +      -       -      +
    211A  VAL*     3.5    42.6    -      -       +      -
    213A  PRO*     3.6    19.0    -      -       +      +
    219A  TRP*     4.0    19.5    -      +       +      -
    221A  THR*     3.5    27.4    -      -       +      -
    226A  VAL*     4.3    16.2    -      -       +      -
    228A  GLY*     1.3    76.0    -      -       -      -
    230A  GLY*     1.3    65.7    +      -       -      +
    231A  ASN      3.3    17.4    +      -       -      -
    236A  MET*     3.9    14.3    -      -       +      +
    238A  PHE*     3.5    30.7    -      +       -      -
    243A  GLY      4.9     1.1    -      -       -      +
    245A  PRO*     3.9    19.4    -      -       +      +
    254A  TYR*     3.6    31.2    +      +       -      -
----------------------------------------------------------
 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