Contacts of the helix formed by residues 282 - 296 (chain H) in PDB entry 1ZUM


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 ASP 282 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    280H  ASP      3.8     1.2    +      -       -      -
    281H  ALA*     1.3    68.0    -      -       -      +
    283H  MET*     1.3    58.9    +      -       -      +
    284H  ASP*     3.3    10.9    +      -       -      +
    285H  TRP*     3.0    36.1    +      -       +      +
    286H  ALA*     2.8    30.4    +      -       -      +
    432H  PHE*     5.6     0.6    -      -       -      -
    434H  LYS*     4.0    27.9    +      -       +      +
    454H  ASN*     5.9     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 283 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277H  ILE*     6.1     0.4    -      -       -      -
    281H  ALA      3.0     9.8    +      -       -      +
    282H  ASP*     1.3    70.9    +      -       -      +
    284H  ASP*     1.3    65.5    +      -       -      +
    286H  ALA*     3.2     4.1    +      -       -      +
    287H  VAL*     2.9    43.2    +      -       -      +
    314H  ILE*     3.6    45.8    -      -       +      +
    317H  GLU*     3.6    27.8    -      -       +      +
    318H  PHE*     3.9    15.3    -      -       +      -
    321H  ARG*     3.5    35.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 284 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282H  ASP*     3.3     8.0    +      -       -      +
    283H  MET*     1.3    77.7    -      -       -      +
    285H  TRP*     1.3    62.8    +      -       -      +
    287H  VAL*     3.9     3.7    -      -       -      +
    288H  GLU*     3.3    23.9    +      -       -      +
    321H  ARG*     2.8    36.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 285 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150G  PHE*     6.5     0.2    -      +       -      -
    494G  LYS*     3.9    34.5    -      -       +      +
    282H  ASP*     3.0    31.4    +      -       +      +
    284H  ASP*     1.3    76.2    -      -       -      +
    286H  ALA*     1.3    57.9    +      -       -      +
    288H  GLU*     3.9     7.3    -      -       +      +
    289H  GLN*     3.0    68.5    +      -       +      +
    432H  PHE*     3.6    24.9    -      +       -      -
    454H  ASN*     2.7    36.1    +      -       +      -
    455H  CYS*     4.9     3.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 286 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277H  ILE*     3.8    32.8    -      -       +      +
    281H  ALA*     4.4     4.3    -      -       +      -
    282H  ASP      2.8    22.9    +      -       -      +
    283H  MET*     3.8     4.9    -      -       -      +
    285H  TRP*     1.3    72.2    -      -       -      +
    287H  VAL*     1.3    59.7    +      -       -      +
    289H  GLN*     4.2     0.3    -      -       -      +
    290H  ALA*     2.9    32.1    +      -       -      +
    318H  PHE*     3.7     6.4    -      -       +      -
    432H  PHE*     3.9    22.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 287 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283H  MET*     2.9    31.6    +      -       -      +
    284H  ASP*     3.9     5.2    -      -       -      +
    286H  ALA*     1.3    78.1    -      -       -      +
    288H  GLU*     1.3    63.0    +      -       -      +
    290H  ALA*     3.4     1.7    +      -       -      +
    291H  HIS*     3.0    22.7    +      -       -      +
    318H  PHE*     3.7    27.1    -      -       +      -
    321H  ARG*     3.8    50.0    -      -       +      +
    322H  SER*     4.0    10.4    +      -       -      +
    325H  ARG*     4.7     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 288 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    284H  ASP      3.3    14.9    +      -       -      +
    285H  TRP*     3.9     9.2    -      -       +      +
    287H  VAL*     1.3    80.5    -      -       -      +
    289H  GLN*     1.3    65.0    +      -       -      +
    291H  HIS*     3.3     8.3    +      -       -      +
    292H  PHE*     2.9    30.8    +      -       +      +
    325H  ARG*     2.9    44.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 289 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275H  ASN*     4.7     0.7    -      -       -      -
    285H  TRP*     3.0    66.5    +      -       +      +
    286H  ALA      4.2     0.4    -      -       -      +
    288H  GLU*     1.3    81.3    +      -       -      +
    290H  ALA*     1.3    56.6    +      -       -      +
    292H  PHE*     3.6    14.4    -      -       -      +
    293H  ALA*     2.7    36.1    +      -       -      +
    432H  PHE*     3.4    26.0    -      -       +      -
    455H  CYS*     3.9     2.9    -      -       -      +
    456H  TYR*     3.6    30.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 290 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275H  ASN*     3.5    22.0    +      -       -      +
    277H  ILE*     4.7     1.6    -      -       +      -
    286H  ALA      2.9    20.4    +      -       -      +
    287H  VAL      3.7     1.8    -      -       -      +
    289H  GLN*     1.3    73.3    -      -       -      +
    291H  HIS*     1.3    68.6    +      -       -      +
    293H  ALA*     3.4     2.3    +      -       -      +
    294H  LEU*     3.2    21.1    +      -       -      +
    305H  GLY      5.1     0.5    -      -       -      +
    308H  THR*     4.2    13.5    +      -       +      +
    318H  PHE*     3.5    23.8    -      -       +      -
    322H  SER*     5.4     1.3    -      -       -      +
    405H  MET*     4.7     8.2    -      -       -      +
    432H  PHE*     5.2     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 291 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287H  VAL*     3.0    13.9    +      -       +      +
    288H  GLU*     3.4    11.4    -      -       -      +
    290H  ALA*     1.3    79.0    -      -       -      +
    292H  PHE*     1.3    61.7    +      -       -      +
    295H  PHE*     2.9    71.5    +      +       -      +
    322H  SER*     5.1     1.7    +      -       -      -
    325H  ARG*     3.2    65.2    -      -       +      +
    326H  ALA*     4.0     6.1    +      -       -      +
    329H  ARG*     3.1    40.0    +      -       -      -
    405H  MET*     5.2     4.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 292 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288H  GLU*     2.9    21.0    +      -       +      +
    289H  GLN*     3.6    19.7    -      -       -      +
    291H  HIS*     1.3    80.2    -      -       +      +
    293H  ALA*     1.3    67.0    +      -       -      +
    295H  PHE*     5.3     0.4    -      -       -      -
    296H  PHE*     3.0    74.0    +      +       +      +
    329H  ARG*     6.1     0.4    -      -       -      +
    456H  TYR*     4.0    11.7    -      -       +      -
    457H  ASP*     3.6    33.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 293 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275H  ASN*     3.9     9.6    -      -       -      +
    289H  GLN      2.7    23.2    +      -       -      +
    290H  ALA      3.5     6.7    -      -       -      +
    292H  PHE*     1.3    74.8    -      -       -      +
    294H  LEU*     1.3    58.5    +      -       -      +
    296H  PHE*     4.9     1.2    +      -       -      +
    301H  CYS*     5.9     0.3    -      -       -      +
    304H  ALA*     3.5     8.0    -      -       -      -
    305H  GLY*     2.9    23.2    +      -       -      +
    456H  TYR*     3.4    47.6    -      -       +      -
    457H  ASP*     4.4     4.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 294 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290H  ALA      3.2     9.0    +      -       -      +
    291H  HIS      3.2     3.0    +      -       -      +
    292H  PHE      3.2     0.4    -      -       -      -
    293H  ALA*     1.3    81.1    -      -       -      +
    295H  PHE*     1.3    80.6    +      -       +      +
    296H  PHE      3.3     3.8    +      -       -      +
    299H  GLY*     3.2    22.3    -      -       -      -
    304H  ALA*     4.3     8.4    -      -       +      +
    305H  GLY      3.4    13.0    -      -       -      +
    306H  SER*     3.4    34.3    -      -       -      -
    308H  THR*     5.6     0.2    -      -       -      +
    402H  GLY      4.0     5.8    -      -       -      +
    403H  PRO      4.0     0.7    -      -       -      -
    404H  VAL      3.2    48.7    -      -       -      +
    405H  MET*     3.5    22.9    -      -       +      +
    406H  GLN      4.5     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 295 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291H  HIS*     2.9    57.0    +      +       +      +
    292H  PHE*     5.3     0.4    -      -       -      -
    294H  LEU*     1.3    81.1    -      -       +      +
    296H  PHE*     1.3    66.4    +      -       -      +
    297H  ASN      3.3     0.3    +      -       -      -
    298H  GLN*     3.1    16.1    +      -       -      -
    299H  GLY      3.3     4.6    +      -       -      +
    326H  ALA*     4.3    18.8    -      -       +      -
    329H  ARG*     3.3    39.9    +      -       -      +
    341H  GLN*     4.3     0.6    -      -       -      +
    383H  PRO*     3.8    13.7    -      -       +      -
    384H  THR      3.8    15.7    -      -       -      -
    385H  VAL*     4.4     0.4    -      -       +      -
    403H  PRO*     3.3    43.1    -      -       +      -
    405H  MET*     4.1    20.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 296 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116H  ILE*     4.0    27.6    -      -       +      -
    120H  VAL*     4.2    24.9    -      -       +      -
    121H  ASP*     5.3     0.7    -      -       -      -
    124H  MET*     5.8     1.8    -      -       +      -
    170H  PHE*     3.8    32.3    -      +       -      -
    292H  PHE*     3.0    55.9    +      +       +      +
    293H  ALA      5.2     1.1    -      -       -      +
    294H  LEU      3.3     2.3    -      -       -      +
    295H  PHE*     1.3    74.3    -      -       -      +
    297H  ASN*     1.3    80.1    +      -       +      +
    299H  GLY*     3.0    13.9    +      -       -      -
    300H  GLN      3.7     1.0    +      -       -      -
    301H  CYS*     4.5    11.0    -      -       +      +
    329H  ARG*     4.5     4.7    -      -       -      +
    457H  ASP*     3.9    22.7    -      -       +      +
----------------------------------------------------------
 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