Contacts of the strand formed by residues 510 - 514 (chain E) in PDB entry 2P1N


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 SER 510 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52E  ASN*     5.7     0.2    -      -       -      -
     77E  PRO*     5.7     0.7    -      -       -      +
    484E  ARG      3.4     1.2    +      -       -      -
    485E  LYS*     3.7    11.8    -      -       -      +
    486E  LEU      3.3    21.1    +      -       -      -
    505E  LEU*     5.9     0.7    -      -       -      -
    508E  MET*     3.5    13.5    -      -       -      +
    509E  ARG*     1.3    91.5    -      -       -      +
    511E  LEU*     1.3    60.7    +      -       -      +
    512E  TRP      4.1     0.7    +      -       -      -
    557E  PHE*     3.5    28.0    -      -       -      -
    558E  ILE      3.1    13.7    -      -       -      -
    559E  TYR*     3.9     6.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 511 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    473E  MET*     4.6     6.3    -      -       -      -
    477E  LEU*     4.9     4.3    -      -       +      -
    486E  LEU*     3.3    37.2    -      -       +      +
    488E  ILE*     4.6     1.8    -      -       +      -
    498E  LEU*     3.1    35.4    -      -       +      -
    505E  LEU*     3.8    27.3    -      -       +      +
    508E  MET*     4.7     2.2    -      -       +      -
    510E  SER*     1.3    71.7    -      -       -      +
    512E  TRP*     1.3    61.4    +      -       -      +
    513E  MET*     3.8    30.1    -      -       +      -
    556E  VAL      3.9     1.6    -      -       -      +
    557E  PHE*     3.7     4.5    -      -       -      -
    558E  ILE*     2.9    41.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 512 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77E  PRO*     3.6    27.8    -      -       +      -
     79E  PHE*     3.4    32.5    -      +       +      -
     84E  LEU*     3.7    31.4    -      -       +      -
     85E  VAL*     3.8    17.3    -      -       +      -
     89E  TRP*     5.7     0.2    -      -       -      -
    486E  LEU      2.7    13.8    +      -       -      +
    487E  GLU*     3.4    11.3    -      -       +      -
    488E  ILE*     2.9    34.3    +      -       -      +
    510E  SER*     4.1     1.0    +      -       -      -
    511E  LEU*     1.3    74.2    -      -       -      +
    513E  MET*     1.3    67.7    +      -       -      +
    514E  SER*     3.0    24.8    +      -       -      -
    538E  ILE*     4.0    22.9    -      -       +      -
    555E  ARG*     3.9    26.0    -      -       +      -
    556E  VAL      3.7     3.4    -      -       -      -
    557E  PHE*     3.6    32.0    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 513 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    473E  MET*     3.5    31.2    -      -       +      +
    488E  ILE*     3.3    14.6    -      -       +      -
    493E  PHE*     3.6    26.5    -      -       +      +
    494E  GLY      4.3     0.4    -      -       -      +
    498E  LEU*     4.5     5.2    -      -       -      -
    511E  LEU*     3.8    33.6    -      -       +      -
    512E  TRP*     1.3    80.3    -      -       -      +
    514E  SER*     1.3    60.9    +      -       -      +
    516E  CYS*     4.3    13.0    +      -       +      +
    518E  VAL*     3.7    26.9    -      -       +      -
    555E  ARG*     3.3     2.3    -      -       -      -
    556E  VAL*     2.9    49.7    +      -       +      +
    558E  ILE*     5.8     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 514 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84E  LEU*     3.9    12.6    -      -       -      +
    488E  ILE      2.9    10.5    +      -       -      -
    489E  ARG*     3.3    17.3    -      -       -      +
    490E  ASP*     2.8    25.1    +      -       -      -
    512E  TRP*     3.0    30.7    +      -       -      +
    513E  MET*     1.3    73.2    -      -       -      +
    515E  SER*     1.3    65.5    +      -       -      +
    516E  CYS*     3.3     3.0    +      -       -      -
    554E  GLU      3.5     9.2    -      -       -      -
    555E  ARG*     4.0    10.3    -      -       -      -
----------------------------------------------------------
 Back to top of page


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