Contacts of the strand formed by residues 307 - 311 (chain E) in PDB entry 1NZX


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 ARG 307 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272E  LYS*     2.9    35.9    +      -       +      +
    273E  SER      3.3     2.9    +      -       -      +
    274E  PRO*     3.2    18.6    -      -       +      +
    275E  ASN      2.8    29.7    +      -       -      -
    305E  GLY      3.2     2.1    -      -       -      -
    306E  SER*     1.3    83.2    -      -       -      +
    308E  THR*     1.3    56.0    +      -       -      +
    309E  PHE*     3.4    35.7    +      -       +      -
    391E  ASP*     5.2     3.7    +      -       -      +
    396E  ALA*     3.2    32.3    -      -       -      +
    406E  GLN*     5.3     0.2    -      -       +      -
    408E  LEU*     3.9    16.4    -      -       +      -
    419E  ARG      3.1    24.2    +      -       -      -
    420E  ALA      2.9    21.2    +      -       -      -
    422E  ASN      4.4     5.7    +      -       -      -
    423E  SER*     3.9    16.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 308 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275E  ASN*     3.5    17.5    +      -       -      +
    277E  ILE*     4.3     5.2    -      -       +      -
    290E  ALA*     4.3     8.2    +      -       +      -
    305E  GLY      3.7    12.3    +      -       -      -
    307E  ARG*     1.3    69.2    -      -       -      +
    309E  PHE*     1.3    56.2    +      -       -      +
    310E  VAL*     3.7     6.5    +      -       +      -
    318E  PHE*     3.8    34.8    -      -       +      -
    405E  MET*     3.7    18.9    -      -       +      +
    406E  GLN      2.9    18.9    +      -       -      -
    407E  ILE*     3.3     9.2    -      -       -      +
    408E  LEU*     2.7    34.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 309 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274E  PRO*     3.8    20.2    -      -       +      -
    275E  ASN      2.9     9.7    +      -       -      +
    276E  ILE*     4.3     4.9    -      -       +      -
    277E  ILE*     2.8    34.5    +      -       -      +
    307E  ARG*     3.5    48.2    -      -       +      -
    308E  THR*     1.3    72.5    -      -       -      +
    310E  VAL*     1.3    57.7    +      -       -      +
    391E  ASP*     4.1     2.2    -      -       -      -
    408E  LEU*     3.4    29.8    -      -       +      -
    410E  PHE*     3.6     6.9    -      +       +      -
    416E  VAL*     3.6    31.4    -      -       +      -
    419E  ARG*     3.8    50.0    -      -       +      -
    420E  ALA*     4.3     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 310 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277E  ILE*     3.9     6.3    -      -       +      -
    308E  THR*     3.9     7.0    -      -       +      +
    309E  PHE*     1.3    78.3    -      -       -      +
    311E  GLN*     1.3    70.1    +      -       -      +
    312E  GLU      3.4     0.3    +      -       -      -
    314E  ILE*     3.8    15.3    -      -       +      -
    315E  TYR*     3.5    33.5    -      -       +      -
    318E  PHE*     3.6    42.4    -      -       +      -
    407E  ILE*     3.7    17.7    -      -       +      -
    408E  LEU      2.8    11.5    +      -       -      +
    409E  LYS*     3.4     7.4    -      -       -      +
    410E  PHE*     3.1    22.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 311 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277E  ILE      3.2     8.4    +      -       -      +
    278E  MET*     4.9     4.7    -      -       +      -
    279E  SER*     3.5    39.0    -      -       -      +
    310E  VAL*     1.3    71.1    -      -       -      +
    312E  GLU*     1.3    87.4    +      -       -      +
    313E  ASP*     2.8    45.6    +      -       -      +
    314E  ILE*     3.0     7.6    +      -       +      +
    315E  TYR      3.0    17.5    +      -       -      -
    410E  PHE*     3.0    24.0    -      -       +      -
    411E  LYS*     2.9    30.4    +      -       -      +
----------------------------------------------------------
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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