Contacts of the strand formed by residues 119 - 124 (chain A) in PDB entry 2O05


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 SER 119 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ARG      3.2     3.4    +      -       -      +
     96A  LYS*     3.5    20.9    -      -       -      -
     97A  VAL      2.9    25.2    +      -       -      -
    117A  VAL*     3.7     1.8    -      -       -      +
    118A  GLU*     1.3    81.0    -      -       -      +
    120A  VAL*     1.3    69.4    +      -       -      +
    121A  VAL*     4.1    11.5    -      -       -      +
    148A  LYS      3.6     7.5    +      -       -      -
    150A  THR*     4.6     6.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 120 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  VAL*     3.3    13.5    -      -       +      +
     99A  ILE*     3.5    38.1    -      -       +      -
    108A  LEU*     3.6    14.1    -      -       +      -
    111A  VAL*     3.5    13.2    -      -       +      -
    112A  VAL*     4.0    16.6    -      -       +      -
    117A  VAL*     3.4    28.7    -      -       +      -
    119A  SER*     1.3    71.4    -      -       -      +
    121A  VAL*     1.3    62.2    -      -       -      +
    122A  GLN      4.9     0.4    -      -       -      +
    148A  LYS*     3.0    11.8    +      -       +      +
    149A  LEU*     3.3     5.7    -      -       -      +
    150A  THR      2.7    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 121 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  VAL      2.9     5.9    +      -       -      -
     98A  LEU*     3.3     8.7    -      -       +      +
     99A  ILE      2.8    25.5    +      -       -      -
    119A  SER*     4.4     9.4    -      -       -      +
    120A  VAL*     1.3    75.1    -      -       -      +
    122A  GLN*     1.3    62.4    +      -       -      +
    150A  THR*     3.4    29.6    -      -       +      +
    152A  HIS*     4.4    13.5    -      -       +      -
    159A  PHE*     3.8    28.9    -      -       +      -
    167A  PHE*     3.9    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 122 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  ILE*     3.3    25.9    -      -       +      +
    101A  GLY      3.4    22.0    -      -       -      +
    102A  GLY*     3.1    16.3    +      -       -      +
    103A  GLY*     4.1     1.4    -      -       -      -
    108A  LEU*     3.8    27.9    -      -       -      +
    120A  VAL      3.9     1.2    +      -       -      -
    121A  VAL*     1.3    74.1    -      -       -      +
    123A  CYS*     1.3    56.4    +      -       -      +
    124A  GLU*     4.3     2.9    -      -       -      +
    144A  TYR*     2.8    34.7    +      -       -      -
    149A  LEU*     3.9    17.0    -      -       +      -
    150A  THR      3.0     7.9    +      -       -      -
    151A  LEU*     3.5    10.7    -      -       +      +
    152A  HIS*     2.5    37.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 123 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  LEU*     4.4     0.6    -      -       +      +
     99A  ILE      2.9     8.9    +      -       -      -
    100A  ILE*     3.6    20.4    -      -       +      -
    101A  GLY      2.8    30.3    +      -       -      -
    121A  VAL      4.1     1.0    +      -       -      -
    122A  GLN*     1.3    71.5    -      -       -      +
    124A  GLU*     1.3    53.0    +      -       -      +
    152A  HIS*     3.6    12.8    -      -       +      -
    153A  VAL      4.3     1.1    -      -       -      -
    154A  GLY*     3.6    28.9    -      -       -      -
    156A  GLY*     4.2     4.5    -      -       -      -
    159A  PHE*     3.6    44.0    -      -       +      -
    501A  MTA      3.4     7.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 124 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  GLY      3.5    11.1    -      -       -      +
    103A  GLY*     3.2    15.3    +      -       -      -
    122A  GLN*     3.8     8.2    +      -       +      +
    123A  CYS*     1.3    74.8    -      -       -      +
    125A  ILE*     1.3    64.8    +      -       -      +
    126A  ASP*     2.7    38.2    +      -       -      +
    127A  GLU*     5.1     0.9    +      -       -      +
    130A  ILE*     3.7    30.2    -      -       +      +
    151A  LEU*     4.8     0.9    -      -       +      -
    152A  HIS      3.2     8.3    +      -       -      +
    153A  VAL*     3.6    10.4    -      -       -      +
    154A  GLY      3.2    16.1    +      -       -      -
    501A  MTA      2.7    53.2    +      -       -      -
----------------------------------------------------------
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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