Contacts of the helix formed by residues 214 - 228 (chain E) in PDB entry 1NZB


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 SER 214 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169E  ASN*     3.1     8.9    -      -       -      +
    192E  ARG*     5.2     2.7    -      -       -      -
    213E  LEU*     1.3    74.0    -      -       -      +
    215E  LEU*     1.3    57.5    +      -       -      +
    216E  GLY*     3.2     9.5    +      -       -      -
    217E  VAL*     3.1    24.2    -      -       -      +
    218E  THR*     2.6    37.2    +      -       -      -
    336F  VAL*     4.7    10.5    -      -       -      +
    339F  LEU*     3.8    26.4    -      -       -      +
    340F  GLU*     4.3    17.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 215 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190E  GLY      4.7     9.6    -      -       -      +
    191E  GLY      3.9    19.5    -      -       -      +
    192E  ARG*     4.7    13.2    -      -       +      +
    214E  SER*     1.3    76.8    +      -       -      +
    216E  GLY*     1.3    66.0    +      -       -      +
    218E  THR*     3.3     4.6    -      -       -      +
    219E  LYS*     2.7    25.9    +      -       -      +
    340F  GLU*     3.9    25.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 216 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146E  ARG*     4.0    16.4    -      -       -      -
    214E  SER*     3.2     5.2    +      -       -      -
    215E  LEU*     1.3    78.4    -      -       -      +
    217E  VAL*     1.3    61.1    +      -       -      +
    219E  LYS*     3.0    20.7    -      -       -      +
    220E  LEU*     2.9    25.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 217 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142E  PHE*     4.8    11.9    -      -       +      -
    146E  ARG*     4.5     0.4    -      -       -      +
    162E  ALA*     5.9     0.7    -      -       -      +
    165E  GLY*     3.6    32.8    -      -       -      +
    166E  ILE      3.7     1.6    -      -       -      +
    169E  ASN*     4.1     3.1    -      -       +      +
    213E  LEU*     3.3    27.8    -      -       +      -
    214E  SER*     3.1    23.1    -      -       -      +
    215E  LEU      3.2     0.2    -      -       -      -
    216E  GLY*     1.3    70.9    -      -       -      +
    218E  THR*     1.3    67.5    -      -       -      +
    219E  LYS      3.2     0.2    +      -       -      -
    220E  LEU*     3.2    10.9    +      -       +      +
    221E  VAL*     2.8    29.6    +      -       +      +
    339F  LEU*     3.5    24.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 218 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187E  ARG*     4.1     3.6    -      -       -      +
    191E  GLY      4.2    13.7    -      -       -      +
    192E  ARG*     3.8     1.1    -      -       -      -
    193E  MET*     2.9    52.6    +      -       +      +
    213E  LEU*     3.4     9.2    +      -       -      +
    214E  SER      2.6    26.0    +      -       -      -
    215E  LEU*     2.8     5.4    +      -       -      +
    217E  VAL*     1.3    70.2    -      -       -      +
    219E  LYS*     1.3    70.9    +      -       -      +
    221E  VAL*     2.9     4.6    +      -       -      +
    222E  GLU*     2.8    42.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 219 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215E  LEU      2.7    15.1    +      -       -      +
    216E  GLY*     3.0    16.8    -      -       -      +
    218E  THR*     1.3    78.1    -      -       -      +
    220E  LEU*     1.3    77.1    +      -       +      +
    222E  GLU*     2.8    30.0    +      -       -      +
    223E  ARG*     3.1    12.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 220 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142E  PHE*     4.5    13.5    -      -       +      -
    146E  ARG*     3.1    32.8    -      -       -      +
    150E  GLU*     6.1     4.7    -      -       +      -
    158E  ILE*     5.0     1.4    -      -       -      +
    161E  LEU*     4.6    25.4    -      -       +      +
    162E  ALA*     3.6    24.5    -      -       +      +
    165E  GLY*     5.8     0.7    -      -       -      -
    216E  GLY*     2.9    16.6    +      -       -      +
    217E  VAL*     3.2     7.6    +      -       +      +
    219E  LYS*     1.3    88.7    -      -       +      +
    221E  VAL*     1.3    60.2    +      -       -      +
    223E  ARG*     3.7    15.7    -      -       -      +
    224E  TRP*     3.4    14.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 221 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162E  ALA*     4.4    14.4    -      -       +      +
    166E  ILE*     4.3    23.6    -      -       +      -
    185E  ILE*     3.8    29.4    -      -       +      -
    193E  MET*     3.8     7.6    -      -       -      -
    213E  LEU*     4.4     9.0    -      -       +      -
    217E  VAL*     2.8    23.1    -      -       +      +
    218E  THR*     2.9     8.0    +      -       -      +
    219E  LYS      2.9     0.2    +      -       -      -
    220E  LEU*     1.3    74.8    -      -       +      +
    222E  GLU*     1.3    68.8    +      -       -      +
    224E  TRP*     2.9    13.7    +      -       +      +
    225E  ILE*     2.8    20.4    +      -       +      +
    238E  LEU*     4.5    13.5    -      -       +      -
    239E  PHE*     5.7     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 222 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187E  ARG*     2.7    41.2    +      -       -      +
    193E  MET*     4.0     2.9    -      -       +      -
    218E  THR*     2.8    33.0    +      -       +      +
    219E  LYS*     2.8    33.2    +      -       -      +
    221E  VAL*     1.3    69.3    -      -       -      +
    223E  ARG*     1.3    57.0    +      -       -      +
    225E  ILE*     2.7    42.6    +      -       -      +
    226E  SER*     3.3     7.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 223 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150E  GLU      5.9     1.2    +      -       -      -
    152E  SER      3.4    14.3    +      -       -      -
    153E  ASP*     3.8    18.2    +      -       -      +
    158E  ILE*     3.1    43.8    -      -       +      +
    219E  LYS*     3.1     7.4    +      -       +      +
    220E  LEU*     3.7    18.8    -      -       -      +
    221E  VAL      3.3     0.2    -      -       -      -
    222E  GLU*     1.3    77.9    -      -       -      +
    224E  TRP*     1.3    61.5    +      -       -      +
    226E  SER*     3.0    21.9    +      -       -      -
    227E  VAL*     3.3    23.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 224 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155E  CYS*     3.7    22.7    -      -       +      -
    158E  ILE*     3.4    27.1    -      -       +      -
    159E  ARG*     3.1    53.6    -      -       +      -
    162E  ALA*     4.1     9.4    -      -       +      -
    220E  LEU      3.4     7.9    +      -       -      +
    221E  VAL*     2.9    12.1    +      -       +      +
    223E  ARG*     1.3    77.2    -      -       -      +
    225E  ILE*     1.3    64.1    +      -       +      +
    227E  VAL*     4.7     1.8    -      -       +      +
    228E  SER*     2.7    67.3    +      -       -      -
    230E  VAL*     4.5     0.8    -      -       +      +
    238E  LEU*     3.3    39.5    +      -       +      +
    239E  PHE*     4.2     6.0    -      +       -      -
    240E  CYS*     4.2    20.4    -      -       -      -
    242E  VAL*     4.0     7.9    -      -       +      -
    248E  ALA*     4.0    10.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 225 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182E  VAL*     4.5    17.0    -      -       +      -
    185E  ILE*     4.7     7.4    -      -       +      -
    187E  ARG*     4.5     5.4    -      -       -      +
    193E  MET*     3.4    26.0    -      -       +      -
    221E  VAL*     2.8    21.2    +      -       +      +
    222E  GLU*     2.7    35.2    +      -       +      +
    224E  TRP*     1.3    78.5    -      -       +      +
    226E  SER*     1.3    53.8    +      -       -      +
    228E  SER*     3.6     3.3    +      -       -      -
    229E  GLY*     3.0    23.2    +      -       -      -
    230E  VAL*     3.4     8.0    +      -       +      +
    231E  ALA*     4.3    23.2    +      -       +      +
    238E  LEU*     5.9     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 226 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222E  GLU      3.3     4.9    +      -       -      -
    223E  ARG*     3.0    13.9    +      -       -      -
    225E  ILE*     1.3    76.5    -      -       -      +
    227E  VAL*     1.3    74.4    +      -       -      +
    228E  SER      3.0     1.6    -      -       -      -
    229E  GLY*     2.8    22.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 227 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153E  ASP      5.5     2.9    -      -       -      +
    155E  CYS*     3.8    33.2    -      -       +      +
    158E  ILE*     5.1     7.0    -      -       +      -
    223E  ARG*     3.3    38.5    +      -       +      +
    224E  TRP*     4.3     4.5    -      -       +      +
    226E  SER*     1.3    86.4    +      -       -      +
    228E  SER*     1.3    57.3    +      -       -      +
    248E  ALA*     4.5     5.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 228 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224E  TRP*     2.7    61.6    +      -       -      -
    225E  ILE      3.6     1.2    +      -       -      -
    227E  VAL*     1.3    77.9    -      -       -      +
    229E  GLY*     1.3    68.2    +      -       -      +
    230E  VAL*     2.8    22.7    -      -       -      +
    248E  ALA*     3.4    17.0    -      -       -      +
    250E  PRO*     3.2    16.0    -      -       -      +
----------------------------------------------------------
 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