Contacts of the strand formed by residues 260 - 266 (chain F) in PDB entry 2ZXX


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 TYR 260 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210F  PHE*     3.6    20.5    -      +       -      -
    213F  MSE      3.8    23.9    -      -       +      +
    214F  ASP*     2.6    46.1    +      -       -      +
    217F  VAL*     3.7    19.1    -      -       +      -
    249F  VAL*     5.7     0.2    -      -       +      -
    252F  ILE*     4.2     7.6    -      -       +      -
    253F  LYS*     6.2     0.7    -      -       -      -
    257F  PRO      3.7    13.6    +      -       -      +
    259F  SER*     1.3    94.7    +      -       -      +
    261F  ARG*     1.3    63.7    +      -       -      +
    262F  PHE*     3.5    39.9    -      +       +      -
    284F  ILE*     3.4    17.9    -      -       +      -
    285F  GLU      3.3     3.1    -      -       -      +
    286F  PRO*     3.8    11.0    -      -       +      -
    287F  LEU*     3.5     8.3    -      -       -      +
    306F  ARG*     3.3    14.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 261 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253F  LYS*     4.8    11.7    -      -       -      +
    260F  TYR*     1.3    77.1    +      -       -      +
    262F  PHE*     1.3   112.9    +      -       -      +
    263F  ARG*     3.9    29.5    +      -       -      +
    283F  THR      3.6     2.4    -      -       -      +
    284F  ILE*     3.7     2.1    -      -       -      -
    285F  GLU*     2.8    45.4    +      -       -      +
    287F  LEU*     3.1    20.1    -      -       +      +
    361F  PRO*     4.9     6.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 262 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249F  VAL*     3.8    24.5    -      -       +      -
    253F  LYS*     4.0    28.3    -      -       +      -
    260F  TYR*     3.5    40.2    -      +       +      -
    261F  ARG*     1.3   108.9    +      -       -      +
    263F  ARG*     1.3    72.7    +      -       -      +
    282F  LEU*     3.7    13.9    -      -       +      -
    283F  THR      3.4     2.2    -      -       -      -
    284F  ILE*     3.7    32.5    -      -       +      -
    360F  LEU*     3.7    23.6    -      -       +      -
    361F  PRO*     3.6    23.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 263 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261F  ARG*     3.9    20.3    +      -       +      +
    262F  PHE*     1.3    85.0    -      -       -      +
    264F  GLN*     1.3    64.3    +      -       -      +
    265F  GLU*     3.0    27.6    +      -       +      +
    281F  GLN      3.4     0.3    -      -       -      +
    282F  LEU*     3.2     8.7    -      -       -      +
    283F  THR*     2.7    48.0    +      -       -      +
    285F  GLU*     2.4    34.9    +      -       -      +
    361F  PRO*     4.4     6.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 264 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263F  ARG*     1.3    73.5    -      -       -      +
    265F  GLU*     1.3    62.3    +      -       -      +
    280F  TYR*     3.2    27.7    -      -       +      +
    281F  GLN*     3.0    29.8    -      -       -      +
    282F  LEU*     3.0    22.5    +      -       -      +
    361F  PRO*     3.3    32.2    -      -       +      +
    362F  GLN*     3.5     6.7    +      -       -      +
    363F  PRO*     3.2    42.1    -      -       +      +
    364F  PRO*     4.8     3.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 265 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226F  THR*     4.4    13.8    -      -       +      +
    263F  ARG*     3.0    39.8    +      -       +      -
    264F  GLN*     1.3    77.5    -      -       -      +
    266F  CYS*     1.3    63.5    +      -       -      +
    280F  TYR*     3.5     4.0    -      -       -      -
    281F  GLN*     3.0    34.6    +      -       -      +
    283F  THR*     3.4    29.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 266 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265F  GLU*     1.3    78.5    -      -       -      +
    267F  ASN*     1.3    65.9    +      -       -      +
    268F  VAL*     3.6    29.4    -      -       -      -
    275F  ILE*     3.7    21.8    -      -       +      -
    279F  ASP*     4.0    17.5    -      -       -      +
    280F  TYR*     3.7    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