Contacts of the strand formed by residues 19 - 25 (chain E) in PDB entry 3KYM


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 ALA 19 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11E  LEU*     4.8     1.3    -      -       +      -
     13E  LEU*     3.5    13.7    -      -       +      -
     18E  ARG*     1.3    72.7    -      -       -      +
     20E  THR*     1.3    66.9    +      -       -      +
     21E  LEU*     4.1     4.4    -      -       +      +
     73E  LEU      3.6     0.9    -      -       -      +
     74E  THR*     3.6     3.6    -      -       -      +
     75E  ILE*     2.9    46.7    +      -       +      +
     78E  LEU*     3.1    34.9    -      -       +      +
    104E  VAL*     4.6     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 20 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8E  PRO*     5.5     2.3    -      -       -      +
     11E  LEU*     3.4    19.5    -      -       -      +
     13E  LEU*     5.0     0.6    -      -       -      +
     18E  ARG*     3.9    21.1    +      -       -      +
     19E  ALA*     1.3    78.1    +      -       -      +
     21E  LEU*     1.3    61.6    +      -       -      +
     22E  SER*     4.4     2.5    +      -       -      -
     72E  THR*     3.6    25.1    -      -       +      -
     73E  LEU      3.8     2.5    -      -       -      -
     74E  THR*     4.0    10.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 21 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7E  SER      5.5     0.9    -      -       -      -
      8E  PRO*     5.9     1.6    -      -       -      -
     11E  LEU*     3.8    18.6    -      -       +      -
     19E  ALA*     4.1     3.4    -      -       +      +
     20E  THR*     1.3    79.9    -      -       -      +
     22E  SER*     1.3    60.6    -      -       -      +
     35E  TRP*     4.0    11.2    -      -       +      -
     72E  THR*     3.7     6.1    -      -       -      +
     73E  LEU*     3.1    56.9    +      -       +      +
     75E  ILE*     4.0    17.3    -      -       +      -
     86E  TYR*     3.7    41.5    -      -       +      -
    102E  THR*     3.9    27.8    -      -       +      +
    104E  VAL*     5.6     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 22 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5E  THR      4.7     0.2    -      -       -      -
      6E  GLN*     3.0    29.6    -      -       -      +
      7E  SER*     3.5    23.7    +      -       -      -
     20E  THR*     4.4     3.1    +      -       -      -
     21E  LEU*     1.3    74.8    -      -       -      +
     23E  CYS*     1.3    60.9    +      -       -      +
     24E  ARG*     2.7    35.4    +      -       -      -
     35E  TRP*     4.4     1.3    -      -       -      -
     71E  PHE      3.6     6.8    +      -       -      -
     72E  THR*     4.8     4.1    +      -       -      +
    102E  THR*     5.1     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 23 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4E  MET*     4.1    19.5    -      -       -      -
      5E  THR      3.7     4.5    -      -       -      -
     22E  SER*     1.3    74.3    +      -       -      +
     24E  ARG*     1.3    66.3    +      -       -      +
     33E  LEU*     4.4     7.6    -      -       -      -
     35E  TRP*     3.5    23.0    -      -       +      -
     70E  GLU      3.5     0.2    -      -       -      -
     71E  PHE*     2.6    49.4    +      -       +      +
     88E  CYS*     2.1    48.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 24 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3E  GLN      4.2     0.2    -      -       -      +
      4E  MET*     4.3     0.8    -      -       -      -
      5E  THR*     3.0    39.6    +      -       -      +
     22E  SER*     2.7    34.5    +      -       -      -
     23E  CYS*     1.3    78.6    -      -       -      +
     25E  ALA*     1.3    63.7    +      -       -      +
     69E  THR*     3.0    18.6    -      -       -      +
     70E  GLU*     3.5    33.5    -      -       +      +
     71E  PHE*     4.8     0.4    +      -       -      -
     72E  THR*     5.8     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 25 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2E  ILE*     4.1     6.1    -      -       +      -
      3E  GLN      3.5     5.6    -      -       -      -
      4E  MET*     3.7    27.6    -      -       +      +
      5E  THR*     6.1     0.2    -      -       -      -
     24E  ARG*     1.3    77.3    -      -       -      +
     26E  SER*     1.3    66.4    +      -       -      +
     27E  GLN*     3.5    19.6    -      -       -      +
     29E  VAL*     4.4     9.2    -      -       +      -
     68E  GLY      4.8     2.5    -      -       -      +
     69E  THR*     3.2    20.9    +      -       -      +
     71E  PHE*     5.0     1.7    -      -       +      -
----------------------------------------------------------
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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