Contacts of the strand formed by residues 16 - 20 (chain v) 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 PHE 16 (chain v).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14v  ILE*     3.7     3.0    -      -       -      +
     15v  SER*     1.3    80.5    +      -       -      +
     17v  ALA*     1.3    63.1    +      -       -      +
     32v  VAL*     3.5     2.3    -      -       -      +
     33v  SER*     2.9    36.1    +      -       -      +
     62v  ILE      5.6     4.7    -      -       -      +
     64v  SER*     6.3     0.4    -      -       -      -
     65v  LEU*     4.1    31.0    -      -       +      +
    338v  ALA*     4.8     4.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 17 (chain v). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14v  ILE*     5.6     0.4    -      -       +      -
     16v  PHE*     1.3    78.9    -      -       -      +
     18v  ILE*     1.3    62.0    +      -       -      +
     30v  ILE*     6.4     1.6    -      -       +      -
     31v  VAL      3.6     8.1    -      -       -      +
     32v  VAL*     4.6     9.2    -      -       +      -
     65v  LEU*     5.9     1.6    -      -       -      -
    338v  ALA*     4.1    26.8    -      -       +      +
    339v  MET      4.6     7.1    -      -       -      +
    340v  CYS*     5.3    10.1    -      -       +      -
    350v  ALA*     4.7    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 18 (chain v). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17v  ALA*     1.3    75.4    -      -       -      +
     19v  HIS*     1.3    61.4    +      -       -      +
     30v  ILE*     3.4     6.4    -      -       -      +
     31v  VAL*     2.9    40.1    +      -       +      +
     65v  LEU*     5.0    11.9    -      -       +      +
     66v  MET*     5.1     1.3    -      -       -      -
     67v  ALA*     4.6    26.5    -      -       +      +
    340v  CYS*     4.8     5.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 19 (chain v). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18v  ILE*     1.3    75.9    -      -       -      +
     20v  GLY*     1.3    58.8    +      -       -      +
     28v  GLN*     5.6     5.4    -      -       +      -
     29v  GLU      3.4    10.5    -      -       -      +
     30v  ILE*     5.0     1.6    -      -       +      -
     67v  ALA*     4.7    11.8    -      -       -      +
    340v  CYS*     4.0    21.9    -      -       +      +
    341v  VAL      4.6    11.2    -      -       -      +
    342v  LEU*     6.0     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 20 (chain v). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19v  HIS*     1.3    77.0    -      -       -      +
     21v  ASN*     1.3    60.8    +      -       -      -
     22v  PHE*     3.1     9.4    +      -       -      +
     28v  GLN*     4.3     9.5    -      -       -      +
     29v  GLU*     2.9    33.9    +      -       -      +
     67v  ALA*     5.9     0.9    -      -       -      -
     76v  ASP*     4.8     9.4    -      -       -      -
----------------------------------------------------------
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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