Contacts of the helix formed by residues 296 - 318 (chain E) in PDB entry 1SZP


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 LEU 296 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290E  PHE      5.4     1.0    -      -       -      -
    295E  GLU*     1.4    71.8    -      -       -      +
    297E  SER*     1.3    73.3    +      -       -      +
    298E  ALA      2.5     1.6    +      -       -      -
    299E  ARG*     2.4    41.5    +      -       -      +
    300E  GLN*     3.7     8.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 297 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    295E  GLU      2.8     9.1    +      -       -      -
    296E  LEU*     1.3    77.2    -      -       -      +
    298E  ALA*     1.3    63.4    +      -       -      -
    300E  GLN*     2.3    37.5    +      -       -      +
    301E  MET*     2.9    11.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 298 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290E  PHE*     6.2     1.6    -      -       -      -
    295E  GLU*     3.1    10.2    +      -       +      +
    296E  LEU      2.5     5.3    +      -       -      +
    297E  SER*     1.3    78.1    +      -       -      +
    299E  ARG*     1.3    63.7    +      -       -      +
    301E  MET*     3.1     8.0    +      -       -      +
    302E  HIS*     3.0    25.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 299 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283E  MET*     4.3    18.3    -      -       -      +
    286E  TYR*     4.0    30.0    +      -       +      +
    287E  ARG*     4.8    18.9    -      -       -      +
    290E  PHE*     3.9    38.0    +      -       -      +
    295E  GLU      4.8     0.2    -      -       -      -
    296E  LEU*     2.4    29.4    +      -       -      +
    298E  ALA*     1.3    75.6    -      -       -      +
    300E  GLN*     1.3    67.1    +      -       -      +
    301E  MET      2.9     1.4    +      -       -      -
    302E  HIS*     3.3     7.2    +      -       -      +
    303E  LEU*     3.1    25.3    +      -       +      +
    346E  GLY*     3.9    26.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 300 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296E  LEU*     3.2     4.6    +      -       +      -
    297E  SER*     2.3    34.4    +      -       -      +
    299E  ARG*     1.3    78.2    -      -       +      +
    301E  MET*     1.3    58.0    +      -       -      +
    303E  LEU*     4.3     2.7    -      -       -      -
    304E  ALA*     3.8     8.5    +      -       -      +
    346E  GLY*     6.2     2.2    -      -       -      +
    349E  ILE*     3.3    34.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 301 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297E  SER*     2.9     8.5    +      -       -      +
    298E  ALA*     3.6    10.1    -      -       -      +
    299E  ARG      3.0     0.2    -      -       -      -
    300E  GLN*     1.3    77.1    -      -       -      +
    302E  HIS*     1.3    67.9    +      -       -      +
    303E  LEU      2.8     2.7    +      -       -      -
    304E  ALA*     3.0     6.2    +      -       -      +
    305E  LYS*     3.0    29.4    +      -       -      +
    308E  ARG*     5.1     1.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 302 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255E  ALA*     4.0    16.7    +      -       +      -
    256E  ASP*     4.1    26.7    +      -       -      +
    259E  LEU*     3.9    26.2    -      -       +      +
    286E  TYR*     3.7    26.1    +      +       +      -
    298E  ALA      3.0    16.3    +      -       -      +
    299E  ARG*     3.7     7.2    -      -       -      +
    301E  MET*     1.3    76.2    -      -       -      +
    303E  LEU*     1.3    62.9    +      -       -      +
    305E  LYS*     3.5    12.9    -      -       +      +
    306E  PHE*     3.4    12.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 303 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282E  VAL*     3.8    27.8    -      -       +      -
    283E  MET*     2.9    34.1    -      -       +      -
    286E  TYR*     3.7    20.4    -      -       +      -
    299E  ARG*     3.1    16.7    +      -       +      +
    300E  GLN*     4.4     4.5    -      -       -      +
    301E  MET      2.8     3.6    +      -       -      -
    302E  HIS*     1.3    71.8    -      -       -      +
    304E  ALA*     1.3    70.2    +      -       -      +
    306E  PHE*     2.7    21.8    +      -       +      +
    307E  MET*     3.3    14.2    +      -       +      -
    346E  GLY*     3.7    20.0    -      -       -      +
    349E  ILE*     4.1    17.0    -      -       +      -
    350E  MET*     4.5     2.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 304 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300E  GLN      3.8    11.3    +      -       -      +
    301E  MET*     3.0     9.8    +      -       -      +
    303E  LEU*     1.3    79.7    -      -       -      +
    305E  LYS*     1.3    53.2    +      -       -      +
    306E  PHE      2.6    12.3    +      -       -      -
    307E  MET*     3.0     6.6    +      -       -      +
    308E  ARG*     2.7    44.0    +      -       -      +
    349E  ILE*     3.6    22.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 305 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259E  LEU*     4.5    17.8    -      -       +      +
    301E  MET*     3.0    12.9    +      -       -      +
    302E  HIS*     3.5    19.1    -      -       +      +
    304E  ALA*     1.3    81.1    -      -       -      +
    306E  PHE*     1.3    54.6    +      -       -      +
    308E  ARG*     3.8    25.9    -      -       -      +
    309E  ALA*     3.3    21.5    +      -       -      +
    312E  ARG*     4.7     6.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 306 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218E  ILE*     5.6     0.9    -      -       +      -
    258E  GLN*     2.9    57.2    -      -       +      -
    259E  LEU*     3.9    16.4    -      -       +      -
    262E  LEU*     3.5    22.7    -      -       +      -
    279E  VAL*     4.3    10.3    -      -       +      -
    282E  VAL*     3.7    23.1    -      -       +      -
    286E  TYR*     3.9    13.5    -      -       -      +
    302E  HIS      3.4     7.8    +      -       -      +
    303E  LEU*     2.7    14.8    +      -       +      +
    304E  ALA      2.6     3.6    +      -       -      -
    305E  LYS*     1.3    71.1    -      -       -      +
    307E  MET*     1.3    60.1    +      -       +      +
    308E  ARG      2.6    14.5    +      -       -      -
    309E  ALA*     2.9     2.5    +      -       -      +
    310E  LEU*     2.8    49.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 307 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180E  ILE*     3.5    37.8    -      -       +      +
    182E  GLU*     6.2     0.7    -      -       +      -
    282E  VAL*     4.6     9.9    -      -       -      -
    303E  LEU*     3.3    16.8    +      -       +      +
    304E  ALA*     3.0    10.5    +      -       -      +
    306E  PHE*     1.3    78.7    -      -       -      +
    308E  ARG*     1.3    61.1    +      -       +      +
    310E  LEU*     4.1    17.0    -      -       -      -
    311E  GLN*     3.3    18.0    +      -       -      +
    323E  VAL*     4.9     3.8    -      -       +      -
    349E  ILE*     4.3    11.9    -      -       +      +
    350E  MET*     3.4    45.1    -      -       +      +
    353E  SER*     3.0    40.8    +      -       -      +
    354E  SER*     4.3     3.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 308 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301E  MET*     5.1     0.6    +      -       -      +
    304E  ALA*     2.7    26.5    +      -       -      +
    305E  LYS*     3.8    38.5    -      -       -      +
    306E  PHE      2.6     3.8    +      -       -      -
    307E  MET*     1.3    70.7    -      -       +      +
    309E  ALA*     1.3    57.3    +      -       -      +
    311E  GLN*     2.6    32.0    +      -       +      +
    312E  ARG*     2.8    27.2    +      -       -      +
    353E  SER*     5.5     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 309 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259E  LEU*     4.2     8.7    -      -       +      -
    262E  LEU*     4.0    20.2    -      -       +      -
    305E  LYS      3.3    11.9    +      -       -      +
    306E  PHE      2.9     9.5    +      -       -      +
    308E  ARG*     1.3    74.0    -      -       -      +
    310E  LEU*     1.3    64.2    +      -       -      +
    312E  ARG*     3.1    28.5    +      -       -      +
    313E  LEU*     3.0    27.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 310 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180E  ILE*     3.9    12.1    -      -       +      -
    262E  LEU*     3.8    26.8    -      -       +      +
    277E  ILE*     4.7     6.3    -      -       +      -
    279E  VAL*     4.0    16.6    -      -       +      -
    306E  PHE*     2.8    45.3    +      -       +      +
    307E  MET*     4.3    11.0    -      -       -      -
    309E  ALA*     1.3    74.7    -      -       -      +
    311E  GLN*     1.3    65.8    +      -       -      +
    312E  ARG      3.0     0.5    +      -       -      -
    313E  LEU*     3.1    14.9    +      -       -      +
    314E  ALA*     3.2    10.9    +      -       -      +
    321E  VAL*     3.9    21.3    -      -       +      +
    323E  VAL*     3.9    27.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 311 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178E  GLY      3.9    11.1    +      -       -      -
    179E  SER*     4.3     3.5    -      -       -      -
    180E  ILE*     4.0    29.9    +      -       +      +
    307E  MET      3.3    12.7    +      -       -      +
    308E  ARG*     2.6    17.7    +      -       +      +
    310E  LEU*     1.3    73.9    -      -       -      +
    312E  ARG*     1.3    68.1    +      -       -      +
    314E  ALA*     3.0     9.8    +      -       -      +
    315E  ASP*     2.7    29.9    +      -       -      +
    353E  SER*     4.5    11.2    -      -       -      +
    355E  THR*     4.8     6.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 312 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112E  TYR*     5.0    20.2    -      -       +      -
    305E  LYS*     4.7     6.1    +      -       -      +
    308E  ARG*     2.8    21.9    +      -       -      +
    309E  ALA*     3.2    36.6    -      -       -      +
    311E  GLN*     1.3    76.1    -      -       -      +
    313E  LEU*     1.3    55.0    +      -       +      +
    314E  ALA      2.7     0.7    +      -       -      -
    315E  ASP*     2.4    40.0    +      -       -      +
    316E  GLN*     2.9    20.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 313 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262E  LEU*     3.8    40.6    -      -       +      +
    266E  ALA*     4.1    14.6    -      -       +      -
    269E  MET*     3.8    22.2    -      -       +      -
    277E  ILE*     3.9    17.7    -      -       +      -
    309E  ALA*     3.0    15.0    +      -       +      +
    310E  LEU*     3.6     8.5    -      -       -      +
    312E  ARG*     1.3    76.8    -      -       +      +
    314E  ALA*     1.3    57.1    +      -       -      +
    316E  GLN*     3.8    14.5    -      -       -      +
    317E  PHE*     3.0    52.3    +      -       +      +
    319E  VAL*     3.8     4.1    -      -       -      +
    321E  VAL*     5.5     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 314 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178E  GLY*     3.5    32.5    -      -       -      +
    179E  SER*     4.3     4.9    -      -       -      +
    180E  ILE      5.2     0.2    -      -       -      +
    310E  LEU      3.2     6.8    +      -       -      +
    311E  GLN*     3.0    16.1    +      -       -      +
    312E  ARG      2.7     5.1    +      -       -      -
    313E  LEU*     1.3    76.7    -      -       -      +
    315E  ASP*     1.3    55.4    +      -       -      +
    318E  GLY*     2.8    28.9    +      -       -      -
    319E  VAL*     3.9    13.4    -      -       -      +
    321E  VAL*     4.3    15.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 315 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108E  GLU*     4.6     3.8    -      -       -      +
    112E  TYR*     4.3    24.0    +      -       +      +
    178E  GLY      4.5     4.6    -      -       -      +
    311E  GLN*     2.7    34.9    +      -       -      +
    312E  ARG*     2.4    27.2    +      -       -      +
    314E  ALA*     1.3    69.8    -      -       -      +
    316E  GLN*     1.3    62.0    +      -       -      +
    317E  PHE      3.3     0.7    +      -       -      -
    318E  GLY*     4.0     3.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 316 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80E  MET*     4.4     6.6    -      -       -      -
    105E  HIS*     4.4    10.1    -      -       -      +
    106E  THR*     3.7    29.4    +      -       -      +
    108E  GLU*     4.1    28.0    -      -       +      +
    109E  ALA*     4.2    21.8    +      -       -      +
    112E  TYR*     4.3     9.7    -      -       +      -
    266E  ALA*     4.7     6.3    -      -       -      +
    312E  ARG*     2.9    24.7    +      -       -      +
    313E  LEU*     3.8    19.8    +      -       -      +
    315E  ASP*     1.3    72.2    -      -       -      +
    317E  PHE*     1.3    86.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 317 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80E  MET*     4.4    23.4    +      -       +      +
    105E  HIS*     5.2     0.7    -      -       +      -
    106E  THR*     3.9    16.2    -      -       -      -
    266E  ALA*     3.7    14.8    -      -       -      -
    269E  MET*     3.0    59.5    -      -       +      -
    270E  SER*     3.8     4.7    -      -       -      -
    274E  PHE      4.9     4.4    -      -       -      +
    313E  LEU*     3.0    35.7    +      -       +      +
    316E  GLN*     1.3   104.8    -      -       +      +
    318E  GLY*     1.3    59.8    +      -       -      +
    319E  VAL*     2.9    21.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 318 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177E  THR*     3.5    10.9    +      -       -      -
    178E  GLY*     3.3    10.0    +      -       -      -
    314E  ALA      2.8    16.2    +      -       -      -
    315E  ASP      4.0     3.6    +      -       -      -
    316E  GLN      3.9     0.2    -      -       -      -
    317E  PHE*     1.3    76.9    -      -       -      +
    319E  VAL*     1.3    71.0    +      -       -      +
----------------------------------------------------------
 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