Contacts of the strand formed by residues 188 - 196 (chain A) in PDB entry 4Y2H


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 SER 188 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  TRP*     5.9     0.2    -      -       -      -
    186A  PRO*     3.6     2.3    -      -       -      +
    187A  ALA*     1.3    81.7    -      -       -      +
    189A  ALA*     1.3    61.6    +      -       -      +
    190A  GLU*     5.2     2.4    +      -       -      -
    255A  GLN*     4.0    12.5    +      -       -      -
    256A  LEU      3.1    15.3    -      -       -      -
    257A  GLU*     3.9    19.3    -      -       -      -
    258A  LEU*     4.2     5.8    -      -       -      +
    294A  VAL*     3.2     8.4    -      -       -      +
    295A  THR*     3.0    43.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  TRP*     4.2    13.2    -      -       +      -
    161A  LEU*     4.0    24.9    -      -       +      -
    188A  SER*     1.3    75.1    -      -       -      +
    190A  GLU*     1.3    66.1    +      -       -      +
    255A  GLN*     4.4     1.0    -      -       -      -
    256A  LEU*     2.6    47.4    +      -       +      +
    258A  LEU*     4.4     0.6    -      -       +      +
    293A  GLN      3.2    10.8    -      -       -      +
    294A  VAL*     3.9    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161A  LEU*     5.1     1.1    -      -       -      -
    188A  SER*     5.2     2.5    +      -       -      +
    189A  ALA*     1.3    80.7    -      -       -      +
    191A  LEU*     1.3    64.0    +      -       -      +
    192A  PHE*     3.8    20.6    -      -       +      -
    252A  ARG*     2.5    38.5    +      -       -      -
    254A  ALA      3.4     6.1    -      -       -      +
    255A  GLN*     3.8    24.6    +      -       +      +
    292A  PHE*     3.1    27.6    -      -       -      +
    293A  GLN*     2.8    42.6    +      -       +      +
    295A  THR*     4.3     8.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  GLY      4.0    10.8    -      -       -      +
    161A  LEU*     3.7    42.2    -      -       +      -
    162A  LEU*     4.7     1.1    -      -       +      -
    190A  GLU*     1.3    71.7    -      -       -      +
    192A  PHE*     1.3    62.3    +      -       -      +
    252A  ARG*     3.2     9.5    -      -       -      +
    253A  PHE*     2.9    53.3    +      -       +      -
    254A  ALA*     2.9    17.6    +      -       +      -
    256A  LEU*     5.7     0.7    -      -       +      -
    271A  VAL*     3.8    22.0    -      -       +      -
    290A  ILE*     4.5     5.2    -      -       +      -
    291A  TRP      3.4    17.5    -      -       -      +
    292A  PHE*     4.0     2.7    -      -       +      -
    343A  LEU*     3.6    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  GLU*     3.8    30.7    -      -       +      -
    191A  LEU*     1.3    74.0    -      -       -      +
    193A  ILE*     1.3    62.1    +      -       -      +
    250A  PRO*     4.7     9.0    -      -       +      -
    251A  GLN      3.2     7.9    -      -       -      +
    252A  ARG*     3.6    35.0    -      -       +      -
    253A  PHE*     3.6     2.9    -      -       -      -
    290A  ILE*     3.0    29.1    -      -       -      +
    291A  TRP*     2.9    53.7    +      +       +      +
    292A  PHE*     4.3     0.4    -      -       -      -
    293A  GLN*     3.7    41.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192A  PHE*     1.3    75.5    -      -       -      +
    194A  ALA*     1.3    65.4    +      -       -      +
    250A  PRO*     4.5     1.3    -      -       -      -
    251A  GLN*     2.8    47.2    +      -       +      +
    253A  PHE*     3.7    16.2    -      -       +      -
    275A  PHE*     3.8    48.2    -      -       +      -
    288A  PHE*     3.8    33.9    -      -       +      -
    289A  ALA      3.4    10.3    -      -       -      +
    290A  ILE*     3.9     3.1    -      -       +      -
    291A  TRP*     5.0     1.3    -      -       -      -
    341A  ILE*     4.0    23.1    -      -       +      -
    357A  LEU*     4.6     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193A  ILE*     1.3    77.7    -      -       -      +
    195A  PRO*     1.3    79.5    -      -       +      +
    196A  ILE*     3.7     1.9    -      -       +      +
    246A  VAL*     4.1    17.5    -      -       +      -
    248A  ALA      4.2     1.3    -      -       -      +
    249A  ARG      5.1     0.2    -      -       -      -
    250A  PRO*     4.1     9.6    -      -       +      -
    288A  PHE*     3.3     7.8    -      -       -      -
    289A  ALA      3.0    30.3    +      -       -      -
    291A  TRP*     3.9    24.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  ALA*     1.3    87.5    -      -       +      +
    196A  ILE*     1.3    61.8    +      -       -      +
    246A  VAL*     4.0     0.7    -      -       -      -
    247A  LEU*     3.0    31.5    +      -       +      -
    248A  ALA*     3.5    28.0    -      -       +      +
    249A  ARG      5.2     0.4    -      -       -      +
    275A  PHE*     6.2     0.4    -      -       +      -
    277A  CYS*     3.6    25.6    -      -       -      -
    279A  CYS*     4.5     6.3    -      -       -      -
    285A  MET*     3.7    28.9    -      -       +      -
    287A  GLY      3.4     8.1    -      -       -      +
    288A  PHE*     3.8    11.6    -      -       +      -
    337A  VAL*     4.5     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  ALA*     3.7     9.9    -      -       +      +
    195A  PRO*     1.3    81.8    -      -       -      +
    197A  SER*     1.3    60.6    +      -       -      +
    198A  ASP*     4.1    23.6    -      -       +      +
    241A  LEU*     3.7    28.9    -      -       +      -
    245A  ASP      3.2    12.8    -      -       -      +
    246A  VAL*     4.3    13.0    -      -       +      -
    247A  LEU*     3.5     6.5    -      -       -      -
    285A  MET*     3.5     5.2    -      -       -      +
    286A  HIS*     2.9    29.4    +      -       +      -
    287A  GLY      2.8    31.0    +      -       -      +
    288A  PHE      3.7    16.8    -      -       -      +
    289A  ALA*     3.8     7.4    -      -       +      +
    322A  LEU*     4.7     3.8    -      -       +      -
    324A  TYR*     4.5     9.6    -      -       +      -
----------------------------------------------------------
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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