Contacts of the strand formed by residues 189 - 195 (chain Y) in PDB entry 3EXG


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 CYS 189 (chain Y).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145Y  GLY      4.5     1.3    -      -       -      -
    146Y  ALA*     4.2    11.7    -      -       -      -
    149Y  ALA*     3.5    15.9    -      -       +      -
    161Y  CYS*     3.5     3.8    -      -       -      -
    163Y  THR*     3.6    18.6    -      -       -      -
    187Y  LEU*     2.8    17.5    +      -       +      +
    188Y  PRO*     1.3    74.0    -      -       -      +
    190Y  ILE*     1.3    67.6    +      -       -      +
    191Y  PHE*     3.5    44.9    +      -       +      -
    244Y  CYS*     3.9     2.3    -      -       -      -
    250Y  PRO*     3.3    22.3    -      -       +      +
    251Y  ILE      3.3     5.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 190 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160Y  VAL*     4.7     5.4    -      -       +      -
    161Y  CYS      2.6    18.8    +      -       -      +
    162Y  LEU*     3.5    23.8    -      -       +      -
    163Y  THR      2.8    25.7    +      -       -      -
    189Y  CYS*     1.3    78.2    -      -       -      +
    191Y  PHE*     1.3    60.3    +      -       -      +
    192Y  ILE*     3.1    25.1    +      -       +      +
    237Y  THR*     5.1     2.9    -      -       +      +
    240Y  ALA*     3.9    14.8    -      -       +      +
    241Y  ALA*     3.8    32.8    -      -       +      +
    244Y  CYS*     3.8    14.6    -      -       +      -
    251Y  ILE*     3.7    16.8    -      -       +      +
    253Y  MET*     4.5    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 191 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142Y  VAL*     3.7    35.2    -      -       +      -
    146Y  ALA*     4.4     2.2    -      -       +      -
    163Y  THR*     3.5    10.1    -      -       +      -
    165Y  TYR*     4.4     8.5    -      +       +      -
    178Y  ALA*     3.7    18.8    -      -       +      -
    179Y  TYR*     3.9    25.8    -      +       +      -
    182Y  ALA*     3.5    31.4    -      -       +      -
    189Y  CYS*     3.5    26.7    -      -       -      -
    190Y  ILE*     1.3    69.1    -      -       -      +
    192Y  ILE*     1.3    60.3    +      -       -      +
    193Y  CYS      3.9     0.7    +      -       -      -
    220Y  ILE*     4.2     5.8    -      -       +      -
    250Y  PRO*     3.9    16.6    -      -       +      -
    251Y  ILE      3.0    14.4    +      -       -      +
    252Y  LEU*     3.2    18.0    -      -       +      +
    253Y  MET      2.9    23.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 192 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75Y  LEU*     4.2     4.7    -      -       +      -
    162Y  LEU*     3.4    42.8    -      -       +      -
    163Y  THR      2.8     9.5    +      -       -      +
    164Y  LEU*     3.2    28.8    -      -       +      -
    165Y  TYR*     3.1    28.1    +      -       -      -
    190Y  ILE*     3.5    14.6    -      -       +      +
    191Y  PHE*     1.3    74.2    -      -       -      +
    193Y  CYS*     1.3    67.9    +      -       -      +
    194Y  GLU*     3.7     2.0    +      -       +      +
    253Y  MET*     3.2    31.9    -      -       +      +
    255Y  LEU*     3.8    26.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 193 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165Y  TYR*     3.6    31.2    -      -       +      +
    167Y  ASP*     4.1    20.4    -      -       -      -
    191Y  PHE      3.9     1.0    +      -       -      -
    192Y  ILE*     1.3    72.4    -      -       -      +
    194Y  GLU*     1.3    59.8    +      -       -      +
    195Y  ASN*     3.1     9.6    +      -       -      -
    213Y  TYR*     3.7    41.1    -      -       +      +
    252Y  LEU*     5.5     1.3    -      -       +      -
    253Y  MET      2.9    11.3    +      -       -      +
    254Y  GLU*     3.6     9.1    -      -       +      +
    255Y  LEU      3.0    24.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 194 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68Y  GLN*     3.6    24.3    -      -       -      +
     71Y  CYS*     3.9    20.2    -      -       -      +
     87Y  THR*     4.6     5.2    +      -       -      -
     90Y  ARG*     4.9    13.7    -      -       -      +
     94Y  PHE*     3.9    19.1    -      -       -      -
    164Y  LEU*     3.8    30.9    -      -       +      +
    165Y  TYR      2.8    18.6    +      -       -      +
    166Y  GLY*     3.5     4.9    -      -       -      -
    167Y  ASP*     3.2    20.1    +      -       -      +
    192Y  ILE*     3.7     5.1    +      -       +      -
    193Y  CYS*     1.3    67.7    -      -       -      +
    195Y  ASN*     1.3    62.1    +      -       -      +
    196Y  ASN*     3.5     7.7    +      -       -      +
    255Y  LEU*     4.0    12.1    -      -       +      -
    257Y  THR*     4.7     5.8    -      -       +      -
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Residues in contact with ASN 195 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167Y  ASP*     4.1     9.0    -      -       +      -
    193Y  CYS*     3.1     9.0    +      -       -      +
    194Y  GLU*     1.3    71.5    -      -       -      +
    196Y  ASN*     1.3    53.9    +      -       -      +
    197Y  ARG*     2.6    32.1    +      -       -      +
    211Y  THR      5.6     0.2    +      -       -      -
    213Y  TYR*     3.3    36.4    -      -       +      -
    254Y  GLU*     3.3    22.3    +      -       +      +
    255Y  LEU      3.0    15.3    +      -       -      +
    256Y  GLN*     3.8     6.6    -      -       -      +
    257Y  THR*     2.8    29.1    +      -       -      +
----------------------------------------------------------
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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