Contacts of the helix formed by residues 212 - 224 (chain B) in PDB entry 3H1J


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 LYS 212 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  GLU*     5.2    11.2    -      -       -      +
     25B  GLU*     3.0    37.3    +      -       -      +
     37B  SER*     3.8     1.8    -      -       -      -
     39B  GLU*     4.5     9.3    +      -       +      +
    211B  VAL*     1.3    75.3    -      -       -      +
    213B  HIS*     1.3    80.0    +      -       -      +
    214B  SER*     2.9    35.9    -      -       -      +
    215B  ASP*     2.9    35.2    +      -       -      +
    216B  LEU*     3.2    10.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 213 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  GLU*     3.3    44.1    +      -       +      +
     26B  ILE*     3.2    11.6    +      -       -      -
     27B  THR*     2.8    41.5    +      -       -      -
     35B  ILE*     2.8    39.0    -      -       +      +
     37B  SER*     3.0    36.0    +      -       -      +
    212B  LYS*     1.3    74.3    -      -       -      +
    214B  SER*     1.3    57.1    +      -       -      +
    216B  LEU*     4.6     0.9    -      -       -      +
    217B  LYS*     2.8    39.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 214 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212B  LYS*     2.9    36.1    -      -       -      +
    213B  HIS*     1.3    75.8    -      -       -      +
    215B  ASP*     1.3    62.8    +      -       -      +
    217B  LYS*     3.9     7.3    -      -       -      +
    218B  GLN*     3.1    25.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 215 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211B  VAL*     5.5     3.3    -      -       +      +
    212B  LYS*     2.9    32.0    +      -       -      +
    214B  SER*     1.3    79.1    +      -       -      +
    216B  LEU*     1.3    67.4    +      -       -      +
    217B  LYS      3.1     1.3    -      -       -      -
    218B  GLN*     3.1    24.7    +      -       -      +
    219B  VAL*     3.2    18.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 216 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  ILE*     3.8    13.5    -      -       +      -
     36B  ALA      3.8     1.8    -      -       -      +
     37B  SER*     3.7    21.5    -      -       -      -
     47B  ILE*     4.6    14.8    -      -       +      -
    120B  MET*     5.1     6.1    -      -       +      -
    206B  LEU*     3.2    49.9    -      -       +      +
    208B  GLY*     3.6    34.8    -      -       -      +
    211B  VAL*     4.2     9.1    -      -       +      +
    212B  LYS      3.2     9.8    +      -       -      +
    213B  HIS      4.1     3.1    -      -       -      +
    215B  ASP*     1.3    79.1    -      -       -      +
    217B  LYS*     1.3    61.6    +      -       -      +
    219B  VAL*     3.7     6.8    +      -       +      +
    220B  ALA*     3.3    16.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 217 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  THR*     4.1    28.1    +      -       +      +
     29B  LEU*     4.6     6.1    -      -       +      -
     35B  ILE*     3.7    27.3    -      -       +      +
    213B  HIS*     2.8    26.0    +      -       +      +
    214B  SER*     3.9     6.1    -      -       -      +
    216B  LEU*     1.3    75.1    -      -       -      +
    218B  GLN*     1.3    69.6    +      -       -      +
    220B  ALA*     2.9    13.9    +      -       -      +
    221B  GLU*     3.0    35.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 218 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214B  SER      3.1    13.3    +      -       -      +
    215B  ASP*     3.1    20.1    +      -       -      +
    217B  LYS*     1.3    82.1    -      -       -      +
    219B  VAL*     1.3    64.1    +      -       +      +
    221B  GLU*     3.3     8.4    -      -       -      +
    222B  GLN*     2.8    69.6    +      -       +      +
    223B  PHE*     6.1     1.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117B  ASP*     6.0     2.5    -      -       -      +
    120B  MET*     4.1    30.7    -      -       +      -
    124B  LEU*     5.0     6.1    -      -       +      -
    206B  LEU*     5.1     6.5    -      -       +      -
    215B  ASP*     3.2    14.7    +      -       +      +
    216B  LEU*     3.9     9.4    -      -       +      +
    217B  LYS      3.2     0.8    -      -       -      -
    218B  GLN*     1.3    82.6    -      -       +      +
    220B  ALA*     1.3    67.0    +      -       -      +
    222B  GLN      3.1     0.2    +      -       -      -
    223B  PHE*     2.8    53.8    +      -       +      +
    224B  LEU*     5.0     1.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  LEU*     3.5    20.0    -      -       +      +
     35B  ILE*     3.4    26.9    -      -       +      -
    206B  LEU*     3.7    13.2    -      -       +      +
    216B  LEU      3.3     8.2    +      -       -      +
    217B  LYS      2.9     9.9    +      -       -      +
    219B  VAL*     1.3    77.9    -      -       -      +
    221B  GLU*     1.3    57.4    +      -       -      +
    224B  LEU*     3.0    44.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  LEU*     3.7    28.9    -      -       +      +
    217B  LYS*     3.0    40.1    +      -       -      +
    218B  GLN*     3.3    17.9    -      -       -      +
    220B  ALA*     1.3    78.3    -      -       -      +
    222B  GLN*     1.3    73.0    +      -       +      +
    223B  PHE      3.3     1.2    +      -       -      -
    224B  LEU      4.2     8.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218B  GLN*     2.8    63.5    +      -       -      +
    221B  GLU*     1.3    87.1    +      -       +      +
    223B  PHE*     1.3    81.8    +      -       +      +
    224B  LEU      5.3     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  GLU*     6.3     2.5    -      -       +      -
    124B  LEU*     3.1    41.2    -      -       +      +
    128B  THR*     5.2     0.7    +      -       -      -
    218B  GLN*     6.1     1.1    -      -       +      -
    219B  VAL*     2.8    39.0    +      -       +      +
    222B  GLN*     1.3    96.6    -      -       +      +
    224B  LEU*     1.3    61.4    +      -       +      +
    225B  ASN*     3.1    13.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  ASN*     6.2     0.2    -      -       -      +
     33B  LEU*     3.2    42.0    -      -       +      -
     49B  VAL*     6.2     3.6    -      -       +      -
    124B  LEU*     3.7    13.7    -      -       +      -
    127B  THR*     5.2     1.1    -      -       -      +
    128B  THR*     3.4    33.4    -      -       +      -
    201B  SER*     6.5     0.9    -      -       -      -
    204B  MET*     4.7    11.9    -      -       +      -
    206B  LEU*     5.0     8.5    -      -       +      -
    219B  VAL*     5.0     0.9    -      -       +      +
    220B  ALA*     3.0    24.8    +      -       +      +
    221B  GLU      4.2     9.7    -      -       -      +
    222B  GLN      5.3     0.2    -      -       -      -
    223B  PHE*     1.3    74.3    -      -       +      +
    225B  ASN*     1.3    70.8    +      -       -      +
    226B  ILE*     5.3     5.2    -      -       +      +
----------------------------------------------------------
 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