Contacts of the strand formed by residues 152 - 155 (chain A) in PDB entry 1SOA


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 152 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  GLU*     5.6     2.2    -      -       +      +
    102A  ILE*     3.6    17.3    -      -       +      +
    112A  LEU*     4.2    16.2    -      -       +      -
    117A  ILE*     4.2    17.0    -      -       +      -
    118A  GLY*     4.1    20.6    -      -       -      +
    121A  SER*     3.7    22.0    -      -       -      +
    122A  LYS      4.7     2.8    -      -       -      +
    123A  VAL*     4.2    15.5    -      -       +      -
    139A  TYR*     5.9     0.7    -      -       +      -
    147A  GLU      3.9     1.0    -      -       -      +
    148A  LYS*     3.5     1.4    -      -       -      -
    149A  ASP*     3.0    34.9    +      -       -      +
    150A  GLY      3.3     1.5    -      -       -      -
    151A  LEU*     1.3    85.7    -      -       +      +
    153A  LEU*     1.3    60.6    +      -       -      +
    154A  THR*     4.1    19.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  LEU*     4.1    15.9    -      -       +      -
    102A  ILE      3.0    13.2    +      -       -      +
    103A  ALA*     3.1     7.6    -      -       +      -
    104A  ALA      2.9    24.8    +      -       -      -
    146A  VAL*     3.9    16.6    -      -       +      -
    147A  GLU      3.4     7.9    -      -       -      +
    148A  LYS*     4.1    29.4    -      -       +      +
    152A  ILE*     1.3    72.3    -      -       -      +
    154A  THR*     1.3    65.9    +      -       -      +
    164A  PHE*     3.5    31.4    -      -       +      +
    167A  ALA*     4.1    32.5    -      -       +      +
    168A  ILE*     4.1    11.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  ALA*     3.1    12.6    -      -       +      +
    109A  PRO*     3.9    18.4    -      -       +      -
    112A  LEU*     4.5     6.3    -      -       +      -
    122A  LYS      4.6     0.9    +      -       -      -
    123A  VAL*     3.5    13.9    -      -       +      -
    124A  THR*     2.9    36.0    +      -       -      +
    146A  VAL*     3.4     4.7    -      -       -      +
    147A  GLU*     2.8    38.5    +      -       -      +
    152A  ILE*     4.1    20.1    +      -       +      -
    153A  LEU*     1.3    79.1    -      -       -      +
    155A  SER*     1.3    65.5    +      -       -      +
    164A  PHE*     4.4     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  ALA      3.1     5.3    +      -       -      +
    105A  ILE*     3.6     5.5    -      -       -      -
    106A  CSD      2.9    22.1    +      -       -      -
    109A  PRO*     4.6     0.3    -      -       -      +
    124A  THR*     3.5     5.8    -      -       -      +
    125A  THR*     3.8    10.2    -      -       -      -
    145A  ARG      2.7    22.4    +      -       -      -
    146A  VAL*     3.7     5.0    -      -       -      +
    154A  THR*     1.3    79.4    -      -       -      +
    156A  ARG*     1.3    58.3    +      -       -      +
    160A  THR*     2.7    28.0    +      -       -      -
    164A  PHE*     3.5    27.4    -      -       -      -
----------------------------------------------------------
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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