Contacts of the helix formed by residues 203 - 222 (chain A) in PDB entry 2NL9


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 GLY 203 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  GLN*     5.0     5.3    +      -       -      +
    204A  ALA*     1.3    60.3    +      -       -      -
    205A  ALA*     3.2     6.0    -      -       -      +
    206A  GLY*     3.2    12.9    +      -       -      +
    207A  ARG*     2.9    25.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  GLY*     1.3    68.6    -      -       -      +
    205A  ALA*     1.3    55.5    +      -       -      +
    207A  ARG*     3.5    31.9    -      -       -      +
    208A  ARG*     2.8    56.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  GLN*     4.4    11.0    -      -       -      +
    203A  GLY      3.2     4.7    -      -       -      +
    204A  ALA*     1.3    75.2    -      -       -      +
    206A  GLY*     1.3    59.8    +      -       -      +
    208A  ARG*     3.3    11.0    +      -       -      +
    209A  ALA*     2.9    28.6    +      -       -      +
    312A  TRP*     5.3     3.2    -      -       +      +
    316A  VAL*     4.7     3.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  GLN*     4.1    10.5    +      -       -      -
    181A  ILE*     4.0    23.7    -      -       -      +
    203A  GLY      3.2    14.3    +      -       -      +
    205A  ALA*     1.3    77.2    -      -       -      +
    207A  ARG*     1.3    57.5    +      -       -      +
    209A  ALA*     3.3     2.6    +      -       -      +
    210A  LEU*     2.9    30.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  ARG*     6.0     4.5    -      -       -      +
    203A  GLY      2.9    14.0    +      -       -      +
    204A  ALA*     3.5    29.8    +      -       -      +
    205A  ALA      3.3     0.4    -      -       -      -
    206A  GLY*     1.3    77.3    -      -       -      +
    208A  ARG*     1.3    61.3    +      -       +      +
    210A  LEU*     3.3     7.5    +      -       -      +
    211A  GLU*     2.9    54.6    +      -       +      +
    214A  ARG*     6.2     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  ALA*     2.8    41.5    +      -       -      +
    205A  ALA*     3.3     8.3    +      -       -      +
    207A  ARG*     1.3    79.0    -      -       +      +
    209A  ALA*     1.3    57.6    -      -       -      +
    211A  GLU*     3.3    15.2    +      -       -      +
    212A  THR*     2.9    34.3    +      -       -      +
    316A  VAL*     4.0    18.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181A  ILE*     3.6    29.4    -      -       +      -
    205A  ALA      2.9    17.2    +      -       -      +
    206A  GLY      3.6     0.7    -      -       -      +
    208A  ARG*     1.3    78.4    -      -       -      +
    210A  LEU*     1.3    56.5    +      -       -      +
    212A  THR*     3.3     1.4    +      -       -      -
    213A  LEU*     2.8    29.7    +      -       -      +
    312A  TRP*     3.8    25.8    -      -       +      -
    315A  PHE*     3.4     6.4    -      -       -      -
    316A  VAL*     3.7    13.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181A  ILE*     3.7    32.7    -      -       +      +
    184A  ARG*     3.5    49.6    -      -       +      +
    185A  TYR*     3.8    23.3    -      -       +      +
    188A  GLU*     3.9     1.3    -      -       -      +
    206A  GLY      2.9    17.1    +      -       -      +
    207A  ARG*     3.8     7.0    -      -       +      +
    209A  ALA*     1.3    72.8    -      -       -      +
    211A  GLU*     1.3    61.7    +      -       -      +
    213A  LEU*     3.1     3.4    +      -       +      -
    214A  ARG*     2.8    64.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  ARG*     2.9    45.7    +      -       +      +
    208A  ARG*     3.7    16.0    -      -       -      +
    210A  LEU*     1.3    75.8    -      -       -      +
    212A  THR*     1.3    63.9    +      -       -      +
    214A  ARG*     3.4    25.5    +      -       -      +
    215A  ARG*     3.2    22.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208A  ARG*     2.9    19.1    +      -       -      +
    209A  ALA*     3.5     4.3    -      -       -      -
    211A  GLU*     1.3    76.8    -      -       -      +
    213A  LEU*     1.3    58.7    +      -       -      +
    215A  ARG*     3.1    24.6    +      -       -      +
    216A  VAL*     2.8    34.2    +      -       +      +
    315A  PHE*     3.4    27.1    -      -       +      +
    316A  VAL*     4.2    15.2    +      -       -      +
    319A  PHE*     3.6    30.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181A  ILE*     3.8    26.2    -      -       +      +
    182A  ILE*     4.6     1.6    -      -       -      -
    185A  TYR*     3.5    41.0    -      -       +      -
    209A  ALA      2.8    17.7    +      -       -      +
    210A  LEU*     3.1     6.9    +      -       +      +
    212A  THR*     1.3    75.1    -      -       -      +
    214A  ARG*     1.3    59.2    +      -       -      +
    216A  VAL*     4.3     0.4    -      -       -      -
    217A  GLY*     2.6    34.9    +      -       -      -
    265A  VAL*     3.6    27.8    -      -       +      +
    268A  ILE*     3.9    30.1    -      -       +      -
    312A  TRP*     5.2     1.3    -      -       +      -
    315A  PHE*     3.7    14.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  ARG*     3.9     9.7    -      -       -      +
    185A  TYR*     3.7    17.5    -      -       +      -
    188A  GLU*     2.6    44.7    +      -       -      +
    207A  ARG*     6.2     0.4    -      -       -      +
    210A  LEU*     2.8    38.5    +      -       +      +
    211A  GLU*     3.6    33.2    +      -       -      +
    213A  LEU*     1.3    76.7    -      -       -      +
    215A  ARG*     1.3    62.8    +      -       -      +
    218A  ASP*     3.0    35.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211A  GLU      3.2     8.2    +      -       -      +
    212A  THR*     3.1    32.8    +      -       -      +
    214A  ARG*     1.3    79.9    -      -       -      +
    216A  VAL*     1.3    75.0    +      -       +      +
    218A  ASP*     3.8     3.3    -      -       -      +
    219A  GLY*     2.9    22.9    +      -       -      -
    222A  ARG*     4.8     5.5    +      -       -      +
    319A  PHE      2.9    30.9    +      -       -      -
    320A  HIS*     4.5     3.6    -      -       -      +
    321A  VAL*     3.5    32.4    -      -       -      +
     73B  TYR*     4.3     6.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  THR      2.8    25.2    +      -       -      +
    215A  ARG*     1.3    99.6    -      -       +      +
    217A  GLY*     1.3    60.2    +      -       -      +
    218A  ASP      3.3     0.2    -      -       -      -
    219A  GLY*     3.5     2.2    -      -       -      +
    220A  VAL*     2.8    28.4    +      -       -      +
    265A  VAL*     3.7    20.9    -      -       +      -
    315A  PHE*     4.0    13.7    -      -       +      -
    319A  PHE*     3.8    27.6    -      -       +      -
     69B  PHE*     3.6    19.5    -      -       +      -
     73B  TYR*     3.8    16.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  TYR*     3.0    17.6    +      -       -      -
    213A  LEU      2.6    24.9    +      -       -      -
    216A  VAL*     1.3    71.3    -      -       -      +
    218A  ASP*     1.3    63.8    +      -       -      +
    220A  VAL*     3.4     6.8    -      -       -      +
    221A  GLN*     3.6     2.9    +      -       -      +
    265A  VAL*     4.2     9.6    -      -       -      -
    269A  SER*     2.7    33.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  TYR*     2.8    26.1    +      -       -      -
    189A  GLN*     3.0    24.5    +      -       -      +
    214A  ARG*     3.0    24.8    +      -       -      +
    215A  ARG*     3.8     3.4    -      -       -      +
    217A  GLY*     1.3    77.9    -      -       -      +
    219A  GLY*     1.3    62.2    +      -       -      +
    221A  GLN*     3.1    19.3    +      -       -      +
    222A  ARG*     3.4    26.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ARG      2.9    17.2    +      -       -      -
    216A  VAL*     3.3     6.2    +      -       -      -
    218A  ASP*     1.3    76.5    -      -       -      +
    220A  VAL*     1.3    55.8    +      -       -      +
    222A  ARG*     2.9    49.0    +      -       -      +
     69B  PHE*     4.1    10.4    -      -       -      -
     73B  TYR*     6.1     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  VAL      2.8    17.6    +      -       -      +
    217A  GLY*     3.4     4.0    -      -       -      +
    219A  GLY*     1.3    73.7    -      -       -      +
    221A  GLN*     1.3    56.8    +      -       -      +
    224A  HIS*     2.6    34.4    +      -       -      +
    228A  PHE*     4.6     4.0    -      -       +      -
    265A  VAL*     4.3     9.0    -      -       +      +
    266A  THR*     3.5    24.5    -      -       +      +
    269A  SER*     3.3    34.5    -      -       -      +
     65B  ILE*     3.7    17.7    -      -       +      -
     69B  PHE*     3.7    34.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  TYR*     4.5     3.1    +      -       -      -
    189A  GLN*     4.4    17.7    +      -       -      +
    217A  GLY      3.7     5.3    -      -       -      +
    218A  ASP*     3.1    13.2    +      -       -      +
    220A  VAL*     1.3    78.8    -      -       -      +
    222A  ARG*     1.3    59.7    +      -       +      +
    224A  HIS*     2.8    22.5    +      -       -      -
    225A  GLU*     3.2    22.0    +      -       +      +
    228A  PHE*     3.5    22.7    -      -       +      -
    269A  SER*     3.0    40.6    +      -       -      +
    272A  ALA*     4.5     0.7    -      -       -      +
    273A  PHE*     3.8    26.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  ARG*     4.8     5.1    +      -       -      +
    218A  ASP*     3.7    17.9    -      -       -      +
    219A  GLY*     2.9    42.7    +      -       -      +
    221A  GLN*     1.3    77.4    -      -       +      +
    223A  ASN*     1.3    75.4    +      -       -      +
    224A  HIS*     3.3    13.9    +      -       -      -
    225A  GLU*     3.3    10.5    -      -       -      +
----------------------------------------------------------
 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