Contacts of the strand formed by residues 215 - 222 (chain A) in PDB entry 3REP


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 ASN 215 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211A  ARG*     3.2     9.2    -      -       -      +
    212A  TRP*     2.9    59.7    +      -       -      +
    213A  GLN*     3.3    12.5    +      -       -      +
    214A  GLY*     1.3    79.6    -      -       -      +
    216A  ASP*     1.3    62.9    +      -       -      +
    217A  ILE*     3.6    16.9    +      -       +      +
    254A  LEU*     4.3     4.6    -      -       -      +
    270A  HIS*     2.9    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  LEU*     5.5     0.3    -      -       -      +
    209A  LYS*     4.7    11.9    +      -       -      +
    210A  GLY      3.8     4.5    -      -       -      +
    211A  ARG*     2.6    38.1    +      -       -      +
    214A  GLY      4.1     1.4    +      -       -      -
    215A  ASN*     1.3    69.0    -      -       -      +
    217A  ILE*     1.3    57.6    +      -       -      +
    270A  HIS*     3.5    16.5    -      -       -      -
    271A  TRP*     2.9    40.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193A  LEU*     4.0    11.7    -      -       +      -
    194A  ASN      5.6     0.2    -      -       -      +
    209A  LYS*     3.5     8.5    -      -       -      +
    210A  GLY*     2.9    46.3    +      -       -      +
    211A  ARG*     3.7     6.7    -      -       -      +
    212A  TRP*     3.7    24.9    -      -       +      +
    215A  ASN*     3.7    24.0    -      -       +      +
    216A  ASP*     1.3    79.2    -      -       -      +
    218A  VAL*     1.3    66.9    +      -       -      +
    219A  VAL*     3.6    24.0    -      -       +      -
    254A  LEU*     4.0    15.9    -      -       +      -
    268A  ILE*     4.0    13.9    -      -       +      -
    269A  THR      3.1    14.1    -      -       -      +
    271A  TRP*     3.7     5.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  LEU*     3.8    18.6    -      -       +      -
    207A  LEU*     3.9    20.4    -      -       +      -
    208A  TRP      3.1     7.0    -      -       -      +
    209A  LYS*     4.5     0.4    -      -       -      -
    217A  ILE*     1.3    79.7    -      -       -      +
    219A  VAL*     1.3    62.1    +      -       -      +
    220A  LYS*     5.4     0.7    -      -       +      +
    267A  LEU      4.0     0.3    -      -       -      +
    268A  ILE*     3.4     6.9    -      -       -      +
    269A  THR*     2.8    58.5    +      -       +      +
    271A  TRP*     3.7    26.0    -      -       +      +
    338A  ALA*     6.0     0.4    -      -       +      -
    502A  ATP      3.6    26.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193A  LEU*     4.0    11.7    -      -       +      -
    194A  ASN      5.5     0.7    -      -       -      +
    195A  PHE*     3.6    37.9    -      -       +      -
    206A  GLU      3.6     1.4    -      -       -      +
    207A  LEU*     3.3     7.1    -      -       -      -
    208A  TRP*     2.8    38.8    +      -       +      +
    210A  GLY*     4.8     7.4    -      -       -      -
    217A  ILE*     3.6    26.7    -      -       +      -
    218A  VAL*     1.3    75.6    -      -       -      +
    220A  LYS*     1.3    58.5    +      -       -      +
    221A  VAL*     3.7     4.3    +      -       +      -
    266A  THR*     3.4    30.1    -      -       +      -
    267A  LEU      3.5     3.8    -      -       -      +
    268A  ILE*     4.3     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  ASN*     4.4     2.0    +      -       -      -
    204A  SER*     3.9    17.8    -      -       -      -
    206A  GLU      3.5    13.4    +      -       -      +
    207A  LEU*     3.8    17.4    -      -       +      +
    218A  VAL*     4.0     1.4    -      -       +      +
    219A  VAL*     1.3    72.2    -      -       -      +
    221A  VAL*     1.3    60.5    +      -       -      +
    222A  LEU*     3.8    21.1    -      -       +      -
    266A  THR*     3.3     4.7    -      -       -      -
    267A  LEU*     2.8    57.8    +      -       +      +
    338A  ALA*     5.0    15.5    -      -       +      +
    345A  GLN*     4.7     2.7    -      -       -      -
    501A   MN      4.6     0.9    -      -       -      -
    502A  ATP      2.7    64.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190A  PHE*     5.2     3.6    -      -       +      -
    195A  PHE*     4.2    15.5    -      -       +      -
    204A  SER      3.8     0.3    -      -       -      +
    205A  GLY*     3.2     5.7    -      -       -      -
    206A  GLU*     2.8    54.9    +      -       +      +
    208A  TRP*     4.3    13.9    -      -       +      +
    219A  VAL*     4.0    20.0    -      -       +      -
    220A  LYS*     1.3    74.2    -      -       -      +
    222A  LEU*     1.3    62.1    +      -       -      +
    223A  LYS*     6.3     0.4    -      -       +      -
    264A  HIS*     3.7    36.8    -      -       +      -
    265A  PRO      4.1     2.0    -      -       -      -
    266A  THR*     4.2     9.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  SER      3.4    11.4    -      -       -      +
    220A  LYS*     3.8    26.7    -      -       +      -
    221A  VAL*     1.3    72.1    -      -       -      +
    223A  LYS*     1.3    60.0    -      -       -      +
    224A  VAL*     3.9     8.1    +      -       +      -
    235A  PHE*     3.9    12.8    -      -       +      -
    264A  HIS*     3.7    20.2    +      -       -      +
    265A  PRO*     2.9    32.1    +      -       +      +
    267A  LEU*     3.7    20.0    -      -       +      -
    342A  PHE*     3.6    29.6    -      -       +      -
    344A  PHE*     4.3    11.2    -      -       +      -
    345A  GLN*     3.8    26.7    -      -       +      +
----------------------------------------------------------
 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