Contacts of the helix formed by residues 282 - 296 (chain K) 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 K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    280K  ASP      3.8     1.0    +      -       -      -
    281K  ALA*     1.3    69.0    -      -       -      +
    283K  MET*     1.3    52.3    +      -       -      +
    284K  ASP*     3.3    11.8    +      -       -      +
    285K  TRP*     2.9    43.0    +      -       +      +
    286K  ALA*     2.8    36.6    +      -       -      +
    432K  PHE*     5.5     0.7    -      -       -      -
    434K  LYS*     4.0    27.7    +      -       +      +
    454K  ASN*     5.8     0.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 283 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277K  ILE*     6.1     0.2    -      -       -      -
    281K  ALA      3.0     9.0    +      -       -      +
    282K  ASP*     1.3    72.3    +      -       -      +
    284K  ASP*     1.3    64.8    +      -       -      +
    286K  ALA*     3.3     3.2    +      -       -      +
    287K  VAL*     2.9    38.7    +      -       -      +
    314K  ILE*     3.6    46.2    -      -       +      +
    317K  GLU*     3.8    24.0    -      -       +      +
    318K  PHE*     4.0    17.7    -      -       -      -
    321K  ARG*     3.4    40.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 284 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282K  ASP*     3.3     8.9    +      -       -      +
    283K  MET*     1.3    79.1    -      -       -      +
    285K  TRP*     1.3    63.0    +      -       -      +
    287K  VAL*     3.8     3.6    -      -       -      +
    288K  GLU*     3.2    22.9    +      -       -      +
    321K  ARG*     2.9    30.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 285 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282K  ASP*     2.9    29.0    +      -       +      +
    284K  ASP*     1.3    72.2    -      -       -      +
    286K  ALA*     1.3    65.7    +      -       -      +
    288K  GLU*     3.3    11.2    +      -       +      +
    289K  GLN*     2.9    63.8    +      -       +      +
    432K  PHE*     3.7    22.5    -      +       -      -
    454K  ASN*     2.7    30.0    +      -       +      -
    455K  CYS*     5.1     2.9    -      -       +      -
    494L  LYS*     3.6    34.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 286 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277K  ILE*     4.0    34.1    -      -       +      +
    281K  ALA*     4.4     4.7    -      -       +      -
    282K  ASP      2.8    24.0    +      -       -      +
    283K  MET*     3.7     5.4    -      -       -      +
    285K  TRP*     1.3    74.5    -      -       -      +
    287K  VAL*     1.3    56.8    +      -       -      +
    289K  GLN*     3.8     0.7    -      -       -      +
    290K  ALA*     2.8    33.1    +      -       -      +
    318K  PHE*     4.0     5.6    -      -       +      -
    432K  PHE*     3.9    18.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 287 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283K  MET*     2.9    22.6    +      -       -      +
    284K  ASP*     3.8     4.5    -      -       -      +
    286K  ALA*     1.3    75.7    -      -       -      +
    288K  GLU*     1.3    64.1    +      -       -      +
    290K  ALA*     3.3     3.1    +      -       -      +
    291K  HIS*     3.0    22.6    +      -       +      +
    318K  PHE*     3.6    31.4    -      -       +      +
    321K  ARG*     3.8    54.5    -      -       +      +
    322K  SER*     4.1     9.1    +      -       -      +
    325K  ARG*     4.7    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 288 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    284K  ASP      3.2    14.8    +      -       -      +
    285K  TRP*     3.8    10.5    -      -       +      +
    287K  VAL*     1.3    79.0    -      -       -      +
    289K  GLN*     1.3    69.4    -      -       -      +
    291K  HIS*     3.3     7.6    +      -       -      +
    292K  PHE*     3.0    30.9    +      -       +      +
    325K  ARG*     2.9    41.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 289 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275K  ASN*     4.7     0.4    -      -       -      -
    285K  TRP*     2.9    69.4    +      -       +      +
    286K  ALA      3.9     0.4    -      -       -      +
    288K  GLU*     1.3    81.6    -      -       -      +
    290K  ALA*     1.3    57.0    +      -       -      +
    292K  PHE*     3.7    13.6    -      -       -      +
    293K  ALA*     2.7    36.1    +      -       -      +
    432K  PHE*     3.4    28.0    -      -       +      -
    455K  CYS*     4.0     3.4    -      -       -      +
    456K  TYR*     3.7    28.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 290 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275K  ASN*     3.5    22.1    +      -       -      +
    277K  ILE*     4.8     1.6    -      -       +      -
    286K  ALA      2.8    19.4    +      -       -      +
    287K  VAL      3.7     2.7    -      -       -      +
    289K  GLN*     1.3    74.2    -      -       -      +
    291K  HIS*     1.3    65.3    +      -       -      +
    293K  ALA*     3.6     2.4    -      -       -      +
    294K  LEU*     3.3    22.3    +      -       -      +
    305K  GLY      5.1     1.2    -      -       -      +
    308K  THR*     4.1    11.2    +      -       +      +
    318K  PHE*     3.5    25.8    -      -       +      -
    322K  SER*     5.5     0.4    -      -       -      +
    405K  MET*     4.7     8.6    -      -       -      +
    432K  PHE*     5.3     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 291 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287K  VAL*     3.0    13.3    +      -       +      +
    288K  GLU*     3.5     9.9    -      -       -      +
    290K  ALA*     1.3    74.2    -      -       -      +
    292K  PHE*     1.3    63.7    +      -       +      +
    294K  LEU      3.3     1.0    +      -       -      -
    295K  PHE*     2.9    69.9    +      +       -      +
    322K  SER*     5.0     2.8    +      -       -      -
    325K  ARG*     3.2    63.1    +      -       +      +
    326K  ALA*     3.9     8.7    +      -       -      +
    329K  ARG*     3.2    41.7    +      -       -      -
    405K  MET*     5.2     4.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 292 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288K  GLU*     3.0    20.4    +      -       +      +
    289K  GLN*     3.7    18.4    -      -       -      +
    291K  HIS*     1.3    81.4    -      -       +      +
    293K  ALA*     1.3    66.5    +      -       -      +
    295K  PHE*     5.3     0.2    -      -       -      -
    296K  PHE*     3.0    75.0    +      +       +      +
    329K  ARG*     6.0     0.7    -      -       -      +
    456K  TYR*     3.8    12.1    -      -       +      -
    457K  ASP*     3.6    32.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 293 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275K  ASN*     4.0     6.3    -      -       -      +
    289K  GLN      2.7    22.9    +      -       -      +
    290K  ALA*     3.6    11.0    -      -       -      +
    292K  PHE*     1.3    75.4    -      -       -      +
    294K  LEU*     1.3    57.7    +      -       -      +
    296K  PHE*     5.3     0.7    -      -       -      +
    301K  CYS*     5.8     0.5    -      -       -      +
    304K  ALA*     3.5     8.3    -      -       -      +
    305K  GLY*     2.9    22.9    +      -       -      +
    456K  TYR*     3.3    45.7    -      -       +      -
    457K  ASP*     4.3     4.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 294 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290K  ALA      3.3    11.1    +      -       -      +
    291K  HIS      4.2     0.7    -      -       -      +
    292K  PHE      3.1     0.4    -      -       -      -
    293K  ALA*     1.3    82.2    -      -       -      +
    295K  PHE*     1.3    82.0    +      -       +      +
    296K  PHE      3.4     2.3    +      -       -      +
    299K  GLY*     3.2    22.5    -      -       -      -
    304K  ALA*     4.3     8.2    -      -       +      +
    305K  GLY      3.5    13.0    -      -       -      +
    306K  SER*     3.4    34.3    -      -       -      +
    308K  THR*     5.5     0.2    -      -       -      +
    402K  GLY      4.6     4.0    -      -       -      +
    403K  PRO      4.3     0.4    -      -       -      -
    404K  VAL      3.2    26.0    -      -       -      +
    405K  MET*     3.5    41.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 295 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291K  HIS*     2.9    53.7    +      +       -      +
    292K  PHE*     5.3     0.2    -      -       -      -
    294K  LEU*     1.3    86.3    -      -       +      +
    296K  PHE*     1.3    65.6    +      -       -      +
    298K  GLN*     3.0    16.5    +      -       -      -
    299K  GLY*     3.1     5.0    +      -       -      +
    326K  ALA*     4.2    18.8    -      -       +      -
    329K  ARG*     3.1    35.5    +      -       -      +
    341K  GLN*     4.0     8.2    -      -       -      +
    383K  PRO*     3.7    16.6    -      -       +      -
    384K  THR      3.8    14.4    -      -       -      -
    385K  VAL*     4.5     0.4    -      -       +      -
    403K  PRO*     3.4    40.8    -      -       +      -
    405K  MET*     4.1    17.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 296 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116K  ILE*     4.0    31.0    -      -       +      -
    120K  VAL*     4.4    22.0    -      -       +      -
    121K  ASP*     5.4     0.4    -      -       -      -
    124K  MET*     5.6     2.9    -      -       +      -
    170K  PHE*     3.8    35.0    -      +       -      -
    292K  PHE*     3.0    59.1    +      +       +      +
    293K  ALA      5.2     0.9    -      -       -      +
    294K  LEU      3.4     2.8    -      -       -      +
    295K  PHE*     1.3    74.5    -      -       -      +
    297K  ASN*     1.3    78.9    +      -       +      +
    299K  GLY*     3.1    13.3    +      -       -      -
    300K  GLN      3.9     1.6    +      -       -      -
    301K  CYS*     4.4    12.8    -      -       +      +
    329K  ARG*     4.2     4.0    -      -       -      +
    457K  ASP*     3.8    21.3    -      -       +      +
    459K  PHE*     6.5     0.7    -      +       -      -
----------------------------------------------------------
 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