Contacts of the strand formed by residues 177 - 184 (chain A) in PDB entry 3ADL


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 GLU 177 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  LEU      3.6     1.3    +      -       -      +
    176A  PRO*     1.3    74.1    -      -       -      +
    178A  TYR*     1.3    63.2    +      -       -      +
    179A  THR*     4.1    18.2    -      -       +      +
    195A  THR      3.4     4.0    -      -       -      +
    196A  CYS*     3.4     1.4    -      -       -      -
    197A  ARG*     2.8    72.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161A  VAL*     3.9    17.6    +      -       +      +
    164A  LEU*     3.4    22.9    -      -       -      +
    176A  PRO*     3.9    22.5    -      -       +      +
    177A  GLU*     1.3    76.0    -      -       -      +
    179A  THR*     1.3    67.9    +      -       -      +
    194A  MET*     4.0    18.6    -      -       +      +
    195A  THR      3.2     4.3    -      -       -      -
    196A  CYS*     3.7    31.9    -      -       +      -
    214A  LYS*     3.5    57.4    -      -       +      -
    217A  ALA*     4.5     0.2    -      -       +      -
    218A  ALA*     3.4    13.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  GLU*     4.1    22.9    -      -       +      -
    178A  TYR*     1.3    80.3    -      -       -      +
    180A  VAL*     1.3    61.2    +      -       -      +
    181A  THR*     3.3    11.5    +      -       -      +
    194A  MET*     3.5     6.4    -      -       -      -
    195A  THR*     2.8    38.0    +      -       -      -
    197A  ARG*     3.3    30.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  THR*     1.3    72.7    -      -       -      +
    181A  THR*     1.3    62.5    +      -       -      +
    182A  GLN      3.8    15.7    -      -       -      +
    183A  GLU*     4.0    23.6    -      -       +      +
    192A  PHE*     4.6     7.0    -      -       +      -
    193A  THR      3.5    13.0    -      -       -      +
    194A  MET*     3.6    18.8    -      -       +      -
    210A  LYS*     4.0    31.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  THR*     3.3    21.7    +      -       -      +
    180A  VAL*     1.3    73.4    -      -       -      +
    182A  GLN*     1.3    63.4    +      -       -      +
    193A  THR*     3.0    19.6    +      -       -      +
    195A  THR*     2.8    30.4    +      -       -      +
    197A  ARG*     4.5     8.3    -      -       -      +
    204A  ILE*     4.9     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  VAL*     3.7     4.1    -      -       -      +
    181A  THR*     1.3    81.7    +      -       -      +
    183A  GLU*     1.3    78.9    +      -       -      +
    184A  SER*     4.3    13.6    +      -       -      +
    191A  GLU      4.6     0.4    -      -       -      +
    192A  PHE*     3.5     1.4    -      -       -      -
    193A  THR*     2.8    54.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  VAL*     4.0    12.2    -      -       +      +
    182A  GLN*     1.3    83.3    -      -       -      +
    184A  SER*     1.3    62.0    +      -       -      +
    190A  LYS*     2.4    39.3    +      -       -      +
    191A  GLU      3.4     7.4    -      -       -      +
    192A  PHE*     3.4    30.8    -      -       +      -
    210A  LYS*     3.9    13.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  GLN*     4.3    16.3    +      -       -      +
    183A  GLU*     1.3    74.8    -      -       -      +
    185A  GLY*     1.3    70.0    +      -       -      +
    190A  LYS*     3.5     8.9    -      -       -      +
    191A  GLU*     3.0    42.2    +      -       -      +
----------------------------------------------------------
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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