Contacts of the strand formed by residues 45 - 48 (chain I) in PDB entry 6D6U


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 LYS 45 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36I  TYR*     3.2    21.0    -      -       -      -
     37I  GLN*     3.1    37.8    +      -       +      +
     39I  LYS*     6.0     8.4    -      -       +      +
     42I  GLN*     5.9     3.1    -      -       -      +
     43I  SER*     3.9    13.7    -      -       -      +
     44I  PRO*     1.3    73.6    -      -       -      +
     46I  LEU*     1.3    66.1    +      -       -      +
     47I  LEU*     5.8     1.8    -      -       +      -
     57I  GLY      5.8     2.0    +      -       -      -
     58I  VAL*     6.6     0.2    -      -       -      -
    106J  ASP      5.6     1.6    -      -       -      -
    108J  TRP*     4.9     3.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 46 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34I  SER*     4.3     1.3    -      -       -      -
     35I  TRP      3.9     2.9    -      -       -      +
     36I  TYR*     3.6    14.1    -      -       +      -
     45I  LYS*     1.3    80.7    -      -       -      +
     47I  LEU*     1.3    75.7    -      -       -      +
     48I  ILE      3.8    19.7    -      -       -      +
     49I  TYR*     4.5     7.4    -      -       +      -
     55I  TYR*     3.6    43.9    -      -       +      +
     58I  VAL*     3.9    10.9    -      -       -      +
    101J  LEU*     6.2     1.3    -      -       +      -
    104J  ALA*     3.5    34.3    -      -       +      +
    105J  MET      4.6     2.2    -      -       -      +
    106J  ASP*     4.0    32.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 47 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35I  TRP*     3.1    15.2    +      -       +      +
     36I  TYR      4.9     0.4    -      -       -      -
     37I  GLN*     3.3    45.5    -      -       +      +
     45I  LYS*     5.8     2.9    -      -       +      -
     46I  LEU*     1.3    84.1    -      -       -      +
     48I  ILE*     1.3    79.3    +      -       +      +
     54I  ARG*     3.7     2.1    -      -       -      +
     55I  TYR*     3.1    25.4    +      -       -      +
     58I  VAL*     3.9    30.5    -      -       +      +
     59I  PRO*     5.8     0.7    -      -       +      -
     62I  PHE*     4.2    21.3    -      -       +      -
     73I  LEU*     5.0     5.4    -      -       +      -
     86I  TYR*     3.6    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 48 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33I  VAL      4.9     1.1    -      -       -      +
     34I  SER*     3.2     8.5    -      -       -      -
     35I  TRP*     3.1    47.6    +      -       +      -
     46I  LEU*     3.8     5.1    -      -       -      +
     47I  LEU*     1.3    96.6    -      -       +      +
     49I  TYR*     1.3    64.9    +      -       -      +
     51I  ALA*     4.3     4.9    -      -       -      -
     52I  SER*     3.9    22.2    -      -       -      +
     53I  ASN      3.3    20.2    -      -       -      +
     54I  ARG*     4.0    18.2    -      -       +      -
     58I  VAL*     6.0     0.2    -      -       +      -
     62I  PHE*     4.7    13.7    -      -       +      +
     64I  GLY*     4.8    13.5    -      -       -      +
     73I  LEU*     4.3    19.7    -      -       +      -
----------------------------------------------------------
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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