Contacts of the helix formed by residues 960 - 967 (chain U) in PDB entry 6FF7


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 ASP 960 (chain U).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    951U  VAL*     6.0     1.0    -      -       -      +
    959U  PRO*     1.3    78.3    -      -       -      +
    961U  VAL*     1.3    66.0    +      -       -      +
    962U  THR*     3.3    12.5    +      -       -      +
    963U  GLU*     3.3    23.6    +      -       +      +
    964U  VAL*     3.5    10.2    +      -       -      +
    987U  TYR*     4.9     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 961 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    960U  ASP*     1.3    73.8    -      -       -      +
    962U  THR*     1.3    61.8    +      -       -      +
    964U  VAL*     3.4    20.0    +      -       -      +
    965U  SER*     3.9     5.4    +      -       -      -
    984U  GLY*     4.6    24.7    -      -       -      +
    985U  ARG      5.1     1.3    -      -       -      +
    986U  SER*     4.4     8.3    -      -       -      +
    987U  TYR*     4.4    28.1    -      -       +      +
    990U  ASP*     4.9     4.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 962 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    960U  ASP*     3.1     8.6    -      -       -      +
    961U  VAL*     1.3    81.5    -      -       -      +
    963U  GLU*     1.3    56.7    +      -       -      +
    965U  SER*     3.3     7.3    +      -       -      -
    966U  THR*     2.9    30.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 963 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    951U  VAL*     4.5    14.3    -      -       +      +
    959U  PRO*     5.8     1.6    -      -       +      -
    960U  ASP*     3.3    20.4    +      -       +      +
    961U  VAL      3.3     0.8    -      -       -      -
    962U  THR*     1.3    76.0    -      -       -      +
    964U  VAL*     1.3    64.3    +      -       -      +
    965U  SER      3.2     0.2    -      -       -      -
    966U  THR*     3.9     9.9    -      -       -      -
    967U  PHE*     3.3    25.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 964 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    951U  VAL*     4.8    11.8    -      -       +      +
    960U  ASP      3.5     7.6    +      -       -      +
    961U  VAL*     3.4    15.8    +      -       -      +
    962U  THR      3.2     0.4    -      -       -      -
    963U  GLU*     1.3    81.0    -      -       -      +
    965U  SER*     1.3    56.3    +      -       -      +
    967U  PHE      4.5     0.2    -      -       -      -
    968U  PHE*     3.4    22.0    +      -       -      +
    987U  TYR*     5.4     2.5    -      -       -      +
    990U  ASP*     4.2    29.4    -      -       +      +
    991U  MET*     4.7     6.7    -      -       +      +
    994U  ALA*     5.1     9.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 965 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    961U  VAL      3.9     5.5    +      -       -      -
    962U  THR*     3.3     8.1    +      -       -      -
    964U  VAL*     1.3    79.6    -      -       -      +
    966U  THR*     1.3    64.5    +      -       -      +
    967U  PHE      3.3     2.0    -      -       -      -
    968U  PHE*     3.4    19.0    +      -       -      +
    982U  PHE*     4.2    23.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 966 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    962U  THR*     2.9    19.5    +      -       -      -
    963U  GLU*     4.1     8.1    -      -       -      -
    964U  VAL      3.6     0.2    -      -       -      -
    965U  SER*     1.3    79.1    -      -       -      +
    967U  PHE*     1.3    58.6    +      -       -      +
    968U  PHE      3.8     2.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 967 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    947U  TYR*     4.2    18.9    -      -       +      +
    950U  LYS*     5.1    15.7    -      -       +      -
    951U  VAL*     5.9     1.8    -      -       +      -
    963U  GLU*     3.3    18.4    +      -       +      +
    964U  VAL      4.5     0.9    -      -       -      -
    965U  SER      3.3     0.2    -      -       -      -
    966U  THR*     1.3    79.2    -      -       -      +
    968U  PHE*     1.3    65.3    +      -       -      +
    969U  PRO*     3.1     5.7    -      -       -      +
----------------------------------------------------------
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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