Contacts of the strand formed by residues 87 - 95 (chain A) in PDB entry 5EXU


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 87 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  ASN*     2.8    24.3    +      -       -      -
     66A  ARG      3.2    15.9    +      -       -      -
     78A  TYR*     4.8     2.2    -      +       +      -
     79A  PHE*     3.8    22.9    -      +       +      -
     82A  ALA*     4.0     8.3    -      -       +      -
     83A  PHE*     3.7    31.9    -      +       -      -
     86A  GLY*     1.3    75.8    -      -       -      +
     88A  SER*     1.3    66.9    +      -       -      +
     89A  TRP*     3.8    11.9    -      +       -      -
    106A  ASP*     4.3     0.2    -      -       -      +
    107A  ILE*     2.9    53.8    +      -       +      +
    177A  TYR*     3.8    28.0    -      +       +      -
    178A  LYS*     2.9    32.8    +      -       -      +
    179A  ALA*     3.7     4.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  TYR*     1.3    80.1    -      -       -      +
     89A  TRP*     1.3    65.7    +      -       -      +
     90A  GLU*     6.5     0.2    -      -       -      -
    105A  SER      3.2    14.8    -      -       -      -
    106A  ASP*     3.8    10.8    -      -       -      -
    177A  TYR*     3.4     1.4    -      -       -      -
    178A  LYS*     2.6    67.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  ALA*     3.4    42.8    -      -       +      -
     62A  CRQ      2.7    33.2    +      -       -      -
     87A  TYR*     3.8    23.8    -      +       -      -
     88A  SER*     1.3    76.4    -      -       -      +
     90A  GLU*     1.3    66.3    +      -       -      +
     91A  ARG*     3.7    35.0    -      -       +      -
    103A  ALA*     3.8    28.3    -      -       +      -
    104A  THR*     3.3     9.3    -      -       -      -
    105A  SER*     2.9    58.1    +      -       -      +
    107A  ILE*     3.6     6.6    -      -       +      +
    118A  ILE*     4.9     1.3    -      -       +      -
    175A  THR*     3.8     2.7    -      -       +      -
    176A  THR      3.3     7.4    -      -       -      +
    177A  TYR*     3.4    27.6    -      +       +      -
----------------------------------------------------------
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Residues in contact with GLU 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  TRP*     1.3    78.0    -      -       -      +
     91A  ARG*     1.3    60.7    +      -       -      +
    103A  ALA      3.5     6.7    -      -       -      +
    104A  THR*     4.6    12.3    -      -       +      +
    174A  LYS      3.9     0.7    -      -       -      +
    175A  THR*     3.2     4.0    -      -       -      +
    176A  THR*     3.0    51.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  PRO*     3.1    24.2    +      -       -      +
     60A  ALA*     4.0     2.2    -      -       -      +
     62A  CRQ      2.7    60.8    +      -       -      -
     89A  TRP*     3.7    39.1    -      -       +      -
     90A  GLU*     1.3    75.1    -      -       -      +
     92A  SER*     1.3    70.8    +      -       -      +
     93A  MET*     4.0    12.4    -      -       +      +
    101A  CYS      4.1     0.3    -      -       -      +
    102A  ILE*     3.3     6.8    -      -       -      +
    103A  ALA*     2.9    35.9    +      -       +      +
    173A  PHE*     3.7    16.6    -      -       +      -
    174A  LYS      3.3     6.7    -      -       -      +
    175A  THR*     2.6    23.3    +      -       -      +
    177A  TYR*     3.9    12.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  ARG*     1.3    73.3    -      -       -      +
     93A  MET*     1.3    65.4    +      -       -      +
     94A  THR*     4.2     6.4    +      -       -      -
    100A  ILE*     6.0     1.8    -      -       -      -
    101A  CYS      3.7     4.5    -      -       -      -
    102A  ILE*     4.4    12.3    -      -       -      -
    172A  ASP      3.5     2.2    +      -       -      +
    173A  PHE*     3.3     5.0    -      -       -      -
    174A  LYS*     2.9    54.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  ILE      4.7     7.6    -      -       -      +
     59A  PRO*     5.7     1.8    -      -       -      -
     60A  ALA*     5.7     1.8    -      -       +      -
     91A  ARG*     4.0    15.9    -      -       +      +
     92A  SER*     1.3    80.2    -      -       -      +
     94A  THR*     1.3    60.7    +      -       -      +
     95A  TYR*     3.8     9.1    +      -       +      -
    100A  ILE*     3.4     5.7    -      -       -      +
    101A  CYS*     2.9    64.9    +      -       +      +
    103A  ALA*     3.6    33.0    -      -       +      +
    120A  PHE*     3.8    14.1    -      -       +      -
    171A  CYS*     3.8    14.6    -      -       -      -
    172A  ASP      3.4     4.7    -      -       -      -
    173A  PHE*     3.6    36.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  SER*     5.3     5.0    +      -       -      -
     93A  MET*     1.3    71.9    +      -       -      +
     95A  TYR*     1.3    70.3    +      -       -      +
     98A  GLN*     6.1     1.3    -      -       -      -
     99A  GLY      4.0     4.5    -      -       -      +
    100A  ILE*     4.5    13.1    -      -       +      +
    170A  ARG      4.7     0.2    -      -       -      -
    171A  CYS*     3.4     2.3    -      -       -      -
    172A  ASP*     2.9    49.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  ILE*     3.6    27.1    +      -       +      +
     93A  MET*     3.8    14.4    -      -       +      +
     94A  THR*     1.3    81.3    -      -       -      +
     96A  GLU*     1.3    65.8    +      -       -      +
     97A  ASP*     3.1     4.4    +      -       -      +
     98A  GLN*     3.3    13.9    +      -       -      -
     99A  GLY      2.9    21.0    +      -       -      +
    101A  CYS*     4.1    10.2    -      -       -      -
    125A  PHE*     3.7    24.7    -      +       -      -
    139A  TRP*     3.4    26.1    -      +       -      -
    161A  LEU*     4.1     6.5    -      -       +      -
    169A  TYR*     3.3    44.0    -      +       +      +
    170A  ARG      3.3     7.9    -      -       -      -
    171A  CYS*     3.4    33.2    -      -       +      -
    173A  PHE*     4.6     3.1    -      -       -      -
----------------------------------------------------------
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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