Contacts of the strand formed by residues 227 - 235 (chain A) in PDB entry 2ZB5


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 MET 227 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  THR*     3.3     5.5    -      -       -      -
    224A  SER*     2.8    41.1    +      -       -      +
    225A  GLN*     3.2    17.0    +      -       +      +
    226A  GLY*     1.3    75.0    -      -       -      +
    228A  TYR*     1.3    62.3    +      -       -      +
    257A  VAL*     4.9     1.6    -      -       -      -
    258A  GLY      3.2    16.2    -      -       -      +
    259A  VAL*     4.6     3.8    -      -       +      -
    260A  ILE*     4.0     5.7    -      -       -      +
    291A  LEU*     3.8    19.0    -      -       +      +
    292A  GLY*     3.7    23.3    -      -       -      +
    293A  GLU      4.1     0.7    -      -       -      +
    294A  LEU*     3.3    32.1    -      -       +      +
    295A  LYS*     3.7     9.4    -      -       -      +
    326A  VAL*     3.3    30.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  SER*     3.4    10.4    +      -       -      -
    206A  LEU*     6.0     2.2    -      -       +      -
    221A  THR*     4.9     9.2    -      -       +      -
    222A  MET      3.4    11.7    -      -       -      +
    223A  THR*     4.4     5.8    -      -       +      -
    227A  MET*     1.3    74.6    -      -       -      +
    229A  GLY*     1.3    67.1    +      -       -      +
    256A  GLU*     2.5    36.4    +      -       +      -
    257A  VAL*     3.2     9.5    -      -       -      +
    258A  GLY*     2.9    62.9    +      -       -      -
    259A  VAL      3.7     5.8    -      -       -      -
    260A  ILE*     4.5     2.7    -      -       +      -
    270A  PHE*     3.5    43.5    -      +       +      -
    271A  HIS      3.7    15.7    -      -       -      -
    272A  MET*     3.2    22.0    +      -       -      +
    291A  LEU*     3.6     6.4    -      -       -      +
    569A  GLU*     5.1     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  THR*     3.2     8.6    -      -       -      +
    222A  MET*     3.0    35.4    +      -       -      +
    228A  TYR*     1.3    86.1    -      -       -      +
    230A  GLY*     1.3    58.8    +      -       -      -
    256A  GLU*     3.1    14.1    -      -       -      -
    257A  VAL*     4.0     2.0    -      -       -      -
    289A  VAL*     4.4     4.5    -      -       -      -
    291A  LEU*     3.6     5.7    -      -       -      +
    296A  LEU*     4.3     6.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  VAL      3.0    14.6    -      -       -      -
    221A  THR*     4.2     4.0    -      -       -      -
    229A  GLY*     1.3    74.8    -      -       -      -
    231A  THR*     1.3    61.6    +      -       -      -
    232A  TYR*     4.8     3.7    -      -       -      -
    255A  PHE*     3.7     2.6    -      -       -      -
    256A  GLU*     2.9    31.2    +      -       -      +
    289A  VAL*     3.4    16.6    -      -       -      -
    296A  LEU*     3.7     9.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  SER      3.4     1.0    -      -       -      +
    219A  ILE*     4.6     0.5    -      -       -      +
    220A  VAL*     3.0    40.2    +      -       +      +
    221A  THR*     5.4     0.2    -      -       -      +
    230A  GLY*     1.3    73.3    -      -       -      -
    232A  TYR*     1.3    64.1    +      -       -      +
    253A  ARG*     2.7    37.1    +      -       -      +
    254A  VAL      2.8    19.4    +      -       -      -
    255A  PHE*     3.6    18.0    -      -       -      -
    287A  CYS*     3.6    22.4    -      -       +      +
    289A  VAL*     3.8    14.1    -      -       +      +
    298A  ALA*     5.2     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  LEU*     3.7    10.7    -      -       -      +
    206A  LEU*     3.3    34.7    +      -       +      -
    209A  TYR*     3.7    20.4    -      +       -      -
    216A  VAL*     3.9    10.5    -      -       +      -
    217A  SER      4.0     5.6    -      -       -      +
    218A  SER      3.6     8.7    -      -       -      -
    219A  ILE*     4.0    18.2    -      -       +      -
    221A  THR*     6.4     1.1    -      -       +      -
    230A  GLY      4.8     1.3    -      -       -      -
    231A  THR*     1.3    85.9    +      -       -      +
    233A  LEU*     1.3    61.9    +      -       -      +
    234A  VAL*     3.7    17.9    -      -       +      -
    253A  ARG*     3.3     8.4    -      -       -      +
    254A  VAL*     2.8    62.5    +      -       +      +
    256A  GLU*     2.9    37.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  NAG      5.5     0.7    -      -       -      -
    215A  ASN      4.6     0.7    -      -       -      -
    216A  VAL*     3.3     7.1    -      -       -      +
    217A  SER*     2.8    50.3    +      -       -      +
    218A  SER*     3.8    18.6    -      -       -      +
    232A  TYR*     1.3    72.8    -      -       -      +
    234A  VAL*     1.3    63.7    +      -       -      +
    251A  MET*     3.4    26.9    -      -       +      -
    252A  TYR      3.2     6.7    -      -       -      +
    253A  ARG*     3.6    38.1    -      -       +      +
    280A  VAL*     3.5    31.4    -      -       +      -
    284A  LEU      4.2     2.7    -      -       -      +
    285A  SER*     4.6     6.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  TYR*     3.6    35.4    -      -       +      -
    214A  TYR*     5.6     2.5    -      -       +      -
    215A  ASN      3.7     3.4    -      -       -      +
    216A  VAL*     3.8    14.8    -      -       +      -
    232A  TYR*     3.7    11.4    -      -       +      -
    233A  LEU*     1.3    79.2    -      -       -      +
    235A  GLU*     1.3    63.5    +      -       -      +
    236A  LYS*     3.7    19.6    +      -       +      -
    251A  MET*     3.1     7.4    -      -       -      +
    252A  TYR*     2.8    53.5    +      -       +      +
    254A  VAL*     3.9    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  NAG      3.5    17.0    +      -       -      +
    214A  TYR*     3.6    17.0    -      -       -      -
    215A  ASN*     3.2    50.7    +      -       +      +
    234A  VAL*     1.3    71.7    -      -       -      +
    236A  LYS*     1.3    60.0    +      -       -      +
    237A  PRO*     3.9     2.6    -      -       -      +
    249A  LEU*     3.4    33.4    -      -       +      +
    250A  SER      3.6    10.1    -      -       -      +
    251A  MET*     4.2    13.8    -      -       +      +
----------------------------------------------------------
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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