Contacts of the strand formed by residues 69 - 74 (chain i) 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 VAL 69 (chain i).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21i  VAL*     5.9     5.4    -      -       +      -
     22i  LYS      4.0     5.6    -      -       -      +
     23i  LEU*     4.5     1.1    -      -       -      +
     24i  LYS*     5.3     1.1    -      -       -      +
     40i  MET      5.1     6.1    -      -       -      +
     64i  ILE*     6.3     2.0    -      -       +      -
     65i  ARG      4.0     2.8    +      -       -      +
     66i  CYS*     3.1    18.4    +      -       -      +
     67i  ASN      4.1     5.5    -      -       -      +
     68i  ASN*     1.3    78.7    -      -       -      +
     70i  LEU*     1.3    66.1    +      -       -      +
     71i  TYR*     4.8     4.9    -      -       -      +
     80j  LYS*     3.9    17.1    -      -       +      +
     82j  ASP*     5.1     5.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 70 (chain i). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22i  LYS*     3.0    19.5    +      -       +      +
     23i  LEU      3.9     3.8    -      -       -      +
     24i  LYS*     3.8    20.9    -      -       +      +
     68i  ASN      3.4     2.8    +      -       -      -
     69i  VAL*     1.3    72.2    -      -       -      +
     71i  TYR*     1.3    64.7    +      -       +      +
     79j  LEU*     3.8     1.9    -      -       -      +
     80j  LYS*     3.0    30.8    +      -       -      +
     83j  ASN*     5.4    13.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 71 (chain i). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21i  VAL*     3.5     3.7    -      -       -      +
     22i  LYS*     3.0    33.5    +      -       +      +
     69i  VAL*     5.4     4.4    -      -       -      +
     70i  LEU*     1.3    83.1    -      -       +      +
     72i  ILE*     1.3    64.4    +      -       -      +
     77j  ILE*     5.3     7.0    -      -       +      -
     78j  MET      3.2    14.8    -      -       -      +
     79j  LEU*     4.0    11.2    -      -       +      -
     80j  LYS      4.6     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 72 (chain i). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19i  VAL*     5.7     4.7    -      -       +      -
     20i  MET      3.7     5.8    -      -       -      +
     21i  VAL*     4.4     8.3    -      -       +      +
     71i  TYR*     1.3    76.5    -      -       -      +
     73i  ARG*     1.3    61.9    +      -       -      +
     76j  ARG      3.7     0.7    -      -       -      +
     77j  ILE*     3.5     5.4    -      -       -      +
     78j  MET*     3.0    40.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 73 (chain i). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19i  VAL*     3.2     6.7    -      -       -      +
     20i  MET*     2.8    45.0    +      -       +      +
     72i  ILE*     1.3    75.8    -      -       -      +
     74i  GLY*     1.3    65.3    +      -       -      +
     75i  VAL*     6.0     0.9    -      -       +      -
     74j  LEU*     4.6    14.4    -      -       +      +
     76j  ARG      3.5    11.0    -      -       -      +
     77j  ILE*     5.4     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 74 (chain i). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14i  LEU*     5.8     8.9    -      -       -      +
     17i  LYS*     6.3     0.9    -      -       -      -
     18i  PRO      3.7     8.3    -      -       -      -
     19i  VAL*     4.3     2.2    -      -       -      -
     73i  ARG*     1.3    81.0    -      -       -      +
     75i  VAL*     1.3    61.9    +      -       -      +
     74j  LEU      4.8     6.1    -      -       -      +
     76j  ARG*     3.7    17.1    +      -       -      +
----------------------------------------------------------
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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