Contacts of the strand formed by residues 256 - 263 (chain F) in PDB entry 3DUF


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 256 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204F  ILE*     3.9     2.7    -      -       -      +
    205F  THR*     3.3    15.3    -      -       +      +
    207F  ILE*     4.6     6.3    -      -       +      -
    250F  VAL*     3.9    29.6    -      -       +      -
    255F  ARG*     1.3    76.9    -      -       -      +
    257F  ILE*     1.3    71.0    +      -       -      +
    276F  ILE*     5.0     0.7    -      -       +      -
    284F  LEU*     4.8     3.8    -      -       -      +
    286F  ALA      5.4     0.8    +      -       -      -
    287F  PRO      4.2     2.4    -      -       -      +
    288F  VAL*     3.3    39.5    -      -       +      +
    289F  LEU      3.5     0.9    +      -       -      -
    321F  VAL*     4.4     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 257 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204F  ILE*     3.7    15.7    -      -       +      -
    205F  THR      3.2    10.1    +      -       -      +
    206F  ILE*     4.2    15.8    -      -       +      +
    207F  ILE*     3.0    24.3    +      -       -      +
    256F  ALA*     1.3    82.9    -      -       -      +
    258F  VAL*     1.3    62.6    +      -       -      +
    259F  VAL*     4.1     7.1    +      -       +      -
    288F  VAL*     4.4     0.7    -      -       -      -
    289F  LEU      3.2    11.9    -      -       -      +
    291F  VAL*     4.6     1.8    -      -       +      -
    314F  VAL*     4.0    35.2    -      -       +      +
    317F  THR*     4.1    25.6    -      -       +      +
    318F  ALA*     4.2    10.1    -      -       +      +
    321F  VAL*     3.7    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 258 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207F  ILE*     3.6    32.5    -      -       +      +
    208F  ALA*     5.9     0.2    -      -       -      -
    209F  TYR*     6.0     1.6    -      -       +      -
    235F  LEU*     6.3     0.4    -      -       +      -
    257F  ILE*     1.3    75.7    -      -       -      +
    259F  VAL*     1.3    63.2    +      -       -      +
    260F  GLN*     5.7     0.2    -      -       +      -
    268F  ILE*     5.6     2.5    -      -       +      -
    269F  ALA*     3.7    34.4    -      -       +      +
    272F  VAL*     4.6    12.6    -      -       +      -
    273F  VAL*     3.8    24.2    -      -       +      +
    276F  ILE*     5.1     0.4    -      -       +      -
    288F  VAL*     4.0    11.0    -      -       +      -
    289F  LEU      2.9     5.3    +      -       -      -
    290F  ARG*     3.3     7.1    -      -       +      +
    291F  VAL*     2.7    33.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 259 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206F  ILE*     4.2    12.6    -      -       +      -
    207F  ILE      2.8    21.2    +      -       -      +
    208F  ALA*     3.8    19.1    -      -       +      +
    209F  TYR*     3.9     8.5    +      -       -      -
    212F  MET*     4.1    25.8    -      -       +      +
    216F  SER*     4.1    13.0    -      -       -      +
    257F  ILE*     4.5     4.5    -      -       +      -
    258F  VAL*     1.3    81.9    -      -       -      +
    260F  GLN*     1.3    68.1    +      -       -      +
    291F  VAL*     3.5    32.5    -      -       +      -
    314F  VAL*     3.9    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 260 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209F  TYR*     3.5    22.8    +      -       +      +
    212F  MET*     3.9     9.8    -      -       -      +
    259F  VAL*     1.3    78.1    -      -       -      +
    261F  GLU*     1.3    60.7    +      -       -      +
    262F  ALA*     3.3    12.8    +      -       -      +
    263F  GLN      2.8    29.9    +      -       -      -
    264F  ARG*     4.4     2.8    +      -       -      +
    266F  ALA      2.9    11.7    +      -       -      -
    267F  GLY*     3.5     4.0    -      -       -      -
    268F  ILE      3.2     9.4    +      -       -      -
    269F  ALA*     2.9    44.9    +      -       +      +
    291F  VAL      3.0    15.3    +      -       -      +
    292F  ALA*     3.5    24.2    -      -       +      +
    309F  PRO*     3.9     8.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 261 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118F  PHE*     5.8     0.9    -      -       +      -
    119F  GLY*     3.5     6.6    -      -       -      -
    120F  GLY      3.0    26.2    +      -       -      +
    131F  SER*     3.7    14.9    +      -       -      +
    172F  HIS*     2.9    28.2    +      -       -      -
    209F  TYR*     4.9     3.8    +      -       -      -
    211F  ALA*     4.3     1.9    +      -       -      +
    212F  MET*     3.7    28.9    -      -       +      +
    260F  GLN*     1.3    70.7    -      -       -      +
    262F  ALA*     1.3    69.7    +      -       -      +
    293F  ALA*     3.4    17.3    -      -       -      +
    298F  TYR*     4.5     5.9    -      -       +      -
    307F  TRP*     4.4     4.8    -      -       +      -
    308F  LEU*     3.5    29.2    -      -       +      +
    309F  PRO*     4.1     9.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 262 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131F  SER*     3.9    24.0    -      -       -      +
    133F  GLU*     3.5    23.5    +      -       -      +
    260F  GLN*     3.3    21.7    +      -       -      +
    261F  GLU*     1.3    84.3    -      -       -      +
    263F  GLN*     1.3    68.7    +      -       -      +
    266F  ALA*     4.2     2.0    -      -       +      -
    267F  GLY*     3.9    13.5    -      -       -      +
    292F  ALA*     3.4     2.3    -      -       -      +
    293F  ALA*     3.1    12.8    +      -       -      -
    307F  TRP*     5.5     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 263 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130F  ASP*     5.7     2.0    +      -       -      +
    131F  SER      4.5     8.2    +      -       -      +
    132F  LEU*     6.1     0.2    -      -       -      +
    260F  GLN*     2.8    17.5    +      -       -      -
    262F  ALA*     1.3    77.0    -      -       -      +
    264F  ARG*     1.3    65.8    +      -       -      +
    265F  GLN*     3.3     6.1    -      -       +      +
    266F  ALA*     3.0    25.4    +      -       +      +
    293F  ALA*     3.5     8.3    -      -       -      +
    294F  PRO      3.1    23.3    -      -       -      +
    295F  ASP*     3.8     9.9    -      -       -      +
    296F  THR      2.9    24.4    +      -       -      +
    297F  VAL*     4.0     1.6    -      -       -      +
    298F  TYR*     3.7    20.4    -      -       -      +
    307F  TRP*     4.2    13.7    -      -       +      -
    138H  GLN      5.2     0.2    -      -       -      +
    140H  PRO*     4.3    12.7    -      -       +      +
----------------------------------------------------------
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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