Contacts of the strand formed by residues 151 - 156 (chain E) in PDB entry 4DOH


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 ILE 151 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144E  LEU*     4.4    16.6    -      -       +      -
    145E  THR      3.7     6.7    -      -       -      +
    146E  THR*     3.8    19.7    -      -       +      -
    150E  SER*     1.3    75.0    -      -       -      +
    152E  SER*     1.3    75.5    +      -       -      +
    153E  VAL*     4.4    10.1    -      -       +      -
    203E  LEU      4.0     0.3    -      -       -      +
    204E  VAL*     3.7     1.7    -      -       -      +
    205E  LEU*     2.9    42.3    +      -       +      +
    208E  LEU*     3.3    14.2    -      -       +      +
    214E  TYR*     3.6    32.1    -      -       +      +
    216E  VAL*     5.5     2.7    -      -       +      -
    237E  ALA*     3.4    28.0    -      -       +      +
    239E  THR*     4.4     7.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 152 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143E  ALA      3.4     1.6    -      -       -      +
    144E  LEU*     3.3     8.5    -      -       -      -
    145E  THR*     2.8    48.3    +      -       -      +
    150E  SER*     4.2     3.2    +      -       -      -
    151E  ILE*     1.3    74.0    -      -       -      +
    153E  VAL*     1.3    63.4    +      -       -      +
    154E  VAL*     4.1     7.4    -      -       -      -
    202E  THR*     6.1     1.1    -      -       -      -
    203E  LEU      3.8     3.4    -      -       -      -
    204E  VAL*     3.3    24.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 153 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142E  VAL*     4.9     5.8    -      -       +      -
    143E  ALA      3.8     2.7    -      -       -      +
    144E  LEU*     3.8    22.4    -      -       +      -
    151E  ILE*     4.4     1.3    -      -       +      -
    152E  SER*     1.3    76.7    -      -       -      +
    154E  VAL*     1.3    66.3    +      -       -      +
    155E  LEU*     4.1    21.8    -      -       +      +
    183E  VAL*     5.0     7.2    -      -       +      -
    202E  THR*     3.1     4.3    +      -       -      -
    203E  LEU*     2.7    56.6    +      -       +      +
    205E  LEU*     4.1    26.2    -      -       +      -
    216E  VAL*     4.5    16.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 154 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141E  GLU      3.5     1.9    -      -       -      +
    142E  VAL*     4.5     1.1    -      -       -      -
    143E  ALA*     3.1    49.5    +      -       +      +
    145E  THR*     5.3     7.6    -      -       +      -
    152E  SER*     5.1     7.0    -      -       -      +
    153E  VAL*     1.3    81.8    -      -       -      +
    155E  LEU*     1.3    62.6    +      -       -      +
    156E  THR*     5.4     1.9    -      -       +      +
    201E  HIS      3.4     4.5    -      -       -      +
    202E  THR*     3.6    21.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 155 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140E  PRO*     3.7    17.9    -      -       +      -
    141E  GLU      3.0    10.8    -      -       -      +
    142E  VAL*     4.4     3.6    -      -       +      +
    153E  VAL*     4.3    16.2    -      -       +      +
    154E  VAL*     1.3    76.4    -      -       -      +
    156E  THR*     1.3    67.1    +      -       -      +
    157E  ALA      4.2     0.2    -      -       -      -
    181E  TYR*     4.1    20.4    -      -       +      -
    183E  VAL*     4.4     8.3    -      -       +      -
    198E  VAL*     4.8     4.9    -      -       +      -
    200E  ASN      3.6    12.8    -      -       -      +
    201E  HIS*     2.8    56.9    +      -       +      +
    202E  THR*     4.4     1.1    -      -       -      +
    203E  LEU*     6.3     1.6    -      -       +      -
    218E  VAL*     3.7    37.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 156 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140E  PRO*     3.4     3.6    -      -       -      +
    141E  GLU*     2.7    68.1    +      -       -      +
    154E  VAL*     4.0     1.8    +      -       +      +
    155E  LEU*     1.3    78.6    -      -       -      +
    157E  ALA*     1.3    68.9    +      -       -      +
    201E  HIS*     4.9     3.8    -      -       -      +
----------------------------------------------------------
 Back to top of page


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