Contacts of the strand formed by residues 301 - 311 (chain A) in PDB entry 1U5U


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 PHE 301 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  LYS*     3.7    37.2    -      -       +      -
     85A  PHE*     3.8    33.4    -      -       +      +
     86A  PRO*     4.9     2.7    -      -       +      -
    272A  GLN*     3.2     4.8    -      -       -      -
    273A  ILE*     2.9    46.3    +      -       -      +
    275A  ILE*     4.1    23.6    -      -       +      -
    299A  PRO*     3.9    32.1    -      -       +      -
    300A  TRP*     1.3    77.2    -      -       -      +
    302A  ASP*     1.3    67.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 302 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  VAL*     3.6    30.3    -      -       +      +
     83A  PRO*     5.1     1.2    -      -       -      +
     84A  LYS*     5.2     1.4    +      -       -      +
     85A  PHE*     3.7     9.7    -      -       -      -
    270A  ARG*     3.1    38.9    +      -       -      +
    271A  LEU      3.9     2.9    -      -       -      +
    272A  GLN*     3.0    26.6    +      -       -      +
    300A  TRP      4.2     1.0    +      -       -      -
    301A  PHE*     1.3    72.2    -      -       -      +
    303A  LEU*     1.3    60.8    +      -       -      +
    304A  ALA      5.1     0.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 303 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  ILE*     3.4    14.6    -      -       +      +
     80A  VAL*     3.0    21.7    +      -       -      +
     85A  PHE*     3.6    22.7    -      -       +      -
     91A  PHE*     3.6    43.3    -      -       +      -
    212A  TYR*     3.7    31.4    -      -       +      -
    271A  LEU*     2.7    43.9    +      -       +      +
    272A  GLN*     4.1     0.9    -      -       -      -
    273A  ILE*     4.1    17.5    -      -       +      -
    301A  PHE      3.3     1.4    +      -       -      -
    302A  ASP*     1.3    73.8    -      -       -      +
    304A  ALA*     1.3    64.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 304 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ILE*     3.9    15.0    -      -       +      -
     78A  THR      3.2    17.0    -      -       -      +
     79A  ILE*     3.5    20.4    -      -       +      -
     80A  VAL*     3.9     8.9    -      -       -      +
    270A  ARG*     3.8     2.1    -      -       -      -
    271A  LEU*     2.9    38.6    +      -       +      +
    302A  ASP*     3.9     1.4    -      -       -      +
    303A  LEU*     1.3    85.8    -      -       +      +
    305A  LYS*     1.3    61.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 305 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  GLU      3.7     1.4    -      -       -      +
     77A  ILE*     3.4     4.3    -      -       -      +
     78A  THR*     2.8    42.9    +      -       -      +
     80A  VAL*     4.9     2.3    -      -       +      +
    218A  ASP*     5.0     4.0    +      -       -      -
    268A  ASN*     3.7    37.7    -      -       +      +
    269A  TYR      3.7     9.0    -      -       -      +
    270A  ARG*     5.1     1.3    -      -       +      +
    304A  ALA*     1.3    73.3    -      -       -      +
    306A  VAL*     1.3    67.7    +      -       -      +
    307A  SER*     4.6     7.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 306 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  GLU      3.7     3.4    -      -       -      +
     77A  ILE*     4.4    20.9    -      -       +      +
    101A  LEU*     4.4     7.6    -      -       +      -
    119A  PHE*     4.5     7.4    -      -       +      -
    121A  ILE*     4.6    16.4    -      -       +      -
    267A  VAL      3.5     1.2    -      -       -      +
    268A  ASN*     3.1     5.5    -      -       -      +
    269A  TYR*     2.7    62.4    +      -       +      +
    271A  LEU*     4.0    26.7    -      -       +      +
    305A  LYS*     1.3    78.5    -      -       -      +
    307A  SER*     1.3    61.6    +      -       -      +
    308A  ILE*     4.0    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 307 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  GLY*     3.0     3.1    -      -       -      -
     76A  GLU*     2.8    40.5    +      -       -      -
    266A  PRO*     3.7    14.6    -      -       -      +
    267A  VAL      3.6     2.7    -      -       -      -
    268A  ASN*     2.6    22.1    +      -       -      -
    305A  LYS*     4.0    11.5    -      -       -      -
    306A  VAL*     1.3    74.4    -      -       -      +
    308A  ILE*     1.3    63.1    +      -       -      +
    309A  LYS*     3.7    19.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 308 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  GLY*     3.7    35.2    -      -       -      +
     74A  ILE      3.9     0.2    -      -       -      +
     75A  GLY*     3.9    14.1    -      -       -      +
     99A  ALA*     5.3     4.5    -      -       +      +
    100A  ARG      5.2     1.6    -      -       -      -
    101A  LEU*     3.6    38.6    -      -       +      +
    121A  ILE*     5.6     0.4    -      -       +      -
    258A  TYR*     3.7    25.6    -      -       -      +
    262A  LEU*     3.4    16.2    -      -       +      +
    266A  PRO*     3.1     4.2    -      -       -      +
    267A  VAL*     2.8    32.3    +      -       +      +
    269A  TYR*     3.8     9.2    -      -       +      -
    306A  VAL*     4.0    11.0    -      -       +      -
    307A  SER*     1.3    75.8    -      -       -      +
    309A  LYS*     1.3    60.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 309 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  ILE      3.0     8.2    +      -       -      +
     75A  GLY*     4.5     4.7    -      -       -      -
     76A  GLU*     3.5    30.9    +      -       -      +
    262A  LEU*     3.9    18.8    -      -       -      +
    266A  PRO*     3.9    20.9    -      -       +      +
    307A  SER*     3.7    26.9    -      -       -      +
    308A  ILE*     1.3    79.0    -      -       -      +
    310A  THR*     1.3    67.9    +      -       -      +
    311A  PRO*     4.4     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 310 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  GLY*     3.1     3.6    -      -       -      -
     74A  ILE*     2.8    54.2    +      -       +      +
    262A  LEU*     3.7     4.6    -      -       -      +
    309A  LYS*     1.3    86.6    +      -       -      +
    311A  PRO*     1.3    85.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 311 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  GLY      4.0     3.1    -      -       -      +
     74A  ILE*     5.2     1.0    -      -       -      +
    259A  VAL*     5.1    18.6    -      -       +      -
    262A  LEU*     3.5    30.0    -      -       +      +
    263A  GLN*     6.0     3.4    -      -       +      -
    309A  LYS      4.4     1.8    -      -       -      +
    310A  THR*     1.3   107.7    -      -       +      +
    312A  LEU*     1.3    65.2    +      -       -      +
    313A  SER      4.2     0.3    +      -       -      -
----------------------------------------------------------
 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