Contacts of the helix formed by residues 35 - 47 (chain B) in PDB entry 2RHM


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 35 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  SER*     1.3    69.9    +      -       -      +
     36B  ASP*     1.3    76.2    +      -       -      +
     38B  PHE*     3.2     6.7    +      -       -      +
     39B  LYS*     2.9    42.0    +      -       +      +
     58B  GLY*     4.1     6.1    -      -       -      +
     61B  ALA*     3.8    12.5    -      -       +      +
     62B  ILE*     3.5    35.2    -      -       +      +
     65B  LEU*     3.9    17.0    -      -       +      +
     82B  GLU      3.0    10.3    +      -       -      +
     83B  SER*     3.3    26.6    +      -       -      +
     84B  ASN*     2.7    34.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 36 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  LYS*     4.7     9.7    +      -       -      -
     18B  THR*     5.7     1.6    +      -       -      +
     34B  SER*     3.3     5.8    +      -       -      +
     35B  LYS*     1.3    91.2    -      -       -      +
     37B  ALA*     1.3    58.0    +      -       -      +
     39B  LYS*     3.2    23.0    +      -       -      +
     40B  GLU*     2.9    38.8    +      -       -      +
     82B  GLU*     5.1     4.8    +      -       -      +
    130B  ARG*     2.8    36.7    +      -       -      +
    134B  HIS*     3.7    11.9    +      -       +      +
    194B  BEZ      4.1     6.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 37 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  HIS*     3.9    23.1    -      -       +      +
     34B  SER*     3.2    27.5    +      -       -      +
     36B  ASP*     1.3    75.8    -      -       -      +
     38B  PHE*     1.3    64.1    +      -       -      +
     40B  GLU*     3.3    10.2    +      -       -      +
     41B  VAL*     3.1    27.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 38 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  MSE      3.6    30.2    -      -       +      +
     67A  HIS*     3.6    32.1    -      +       -      -
     68A  THR*     4.1     5.4    -      -       -      -
     33B  LEU*     3.9    24.7    -      -       +      -
     34B  SER      3.1    24.5    +      -       -      +
     35B  LYS      3.4     8.5    -      -       -      +
     37B  ALA*     1.3    72.3    -      -       -      +
     39B  LYS*     1.3    65.5    +      -       -      +
     41B  VAL*     3.3     4.9    +      -       -      +
     42B  MSE      3.1    29.1    +      -       +      +
     61B  ALA*     3.8    13.0    -      -       +      +
     64B  MSE      3.5    39.9    -      -       +      -
     65B  LEU*     3.6    24.5    -      -       +      -
     68B  THR*     4.3     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 39 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  LYS*     2.9    28.8    +      -       +      +
     36B  ASP*     3.2    26.7    +      -       -      +
     38B  PHE*     1.3    74.6    -      -       -      +
     40B  GLU*     1.3    52.3    +      -       -      +
     42B  MSE      3.0     5.0    +      -       -      +
     43B  PHE*     2.8    48.1    +      -       +      -
     54B  SER*     3.0    42.4    +      -       -      -
     55B  ARG*     5.3     0.6    -      -       -      +
     57B  VAL*     3.9    11.1    -      -       +      +
     58B  GLY*     3.7    17.5    -      -       -      +
     61B  ALA*     3.6    16.2    -      -       +      -
    130B  ARG*     5.6     0.8    -      -       -      +
    134B  HIS*     3.7    22.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 40 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  ASP*     2.9    25.7    +      -       -      +
     37B  ALA*     3.7     8.7    -      -       -      +
     38B  PHE      3.2     0.2    -      -       -      -
     39B  LYS*     1.3    73.0    -      -       -      +
     41B  VAL*     1.3    64.0    +      -       -      +
     43B  PHE*     3.3     6.4    +      -       +      +
     44B  ASP*     3.0    33.4    +      -       -      +
    130B  ARG*     4.6     3.6    +      -       -      -
    131B  HIS*     3.6    32.9    +      -       +      +
    134B  HIS*     2.8    31.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 41 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  THR*     4.1     2.7    -      -       -      +
     63A  MSE      3.0    44.7    -      -       +      +
     64A  MSE      3.8    29.2    -      -       +      +
     67A  HIS*     4.0    31.0    -      -       +      +
     37B  ALA      3.1    15.8    +      -       -      +
     38B  PHE      3.3     6.9    +      -       -      +
     40B  GLU*     1.3    75.2    -      -       +      +
     42B  MSE      1.3    63.8    +      -       -      +
     44B  ASP*     3.4     2.6    +      -       -      -
     45B  GLY*     3.0    18.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MSE 42 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  MSE      4.1    17.3    -      -       -      +
     46A  LEU*     4.6     7.2    -      -       -      -
     60A  THR*     3.9    20.2    -      -       +      -
     64A  MSE      5.0     7.2    -      -       +      -
     38B  PHE*     3.1    19.9    +      -       +      +
     39B  LYS      3.0     7.4    +      -       -      +
     41B  VAL*     1.3    74.4    -      -       -      +
     43B  PHE*     1.3    60.9    +      -       -      +
     46B  LEU*     2.8    41.3    +      -       +      +
     47B  GLY      4.9     0.2    -      -       -      -
     57B  VAL*     3.7    35.2    -      -       +      +
     60B  THR*     3.8    23.6    -      -       -      -
     61B  ALA*     3.7    22.0    -      -       +      +
     64B  MSE      5.1     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 43 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39B  LYS*     2.8    47.1    +      -       +      +
     40B  GLU*     3.3     6.3    +      -       +      +
     42B  MSE      1.3    72.7    -      -       -      +
     44B  ASP*     1.3    58.4    +      -       -      +
     47B  GLY*     2.8    41.0    +      -       -      +
     48B  TRP*     3.7    19.5    -      -       +      -
     53B  TRP*     4.1    11.9    -      +       -      -
     54B  SER*     3.9     8.3    -      -       -      -
     57B  VAL*     3.9    24.2    -      -       +      -
    131B  HIS*     3.7    33.9    -      +       +      -
    133B  GLY*     3.2    32.8    -      -       -      -
    134B  HIS*     3.6    22.4    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 44 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  MSE      3.9    12.2    -      -       +      +
     40B  GLU*     3.0    22.1    +      -       -      +
     41B  VAL*     3.7     6.0    -      -       -      +
     43B  PHE*     1.3    79.5    -      -       -      +
     45B  GLY*     1.3    60.0    +      -       -      +
     47B  GLY      4.6     1.2    +      -       -      -
    131B  HIS*     2.9    30.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 45 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  ARG*     4.4    11.6    +      -       -      +
     59A  ALA*     5.6     2.6    -      -       -      +
     60A  THR*     3.2    23.8    +      -       -      -
     63A  MSE      3.5    18.6    -      -       -      +
     41B  VAL      3.0    11.5    +      -       -      -
     42B  MSE      3.8     0.7    -      -       -      -
     44B  ASP*     1.3    77.2    -      -       -      +
     46B  LEU*     1.3    59.0    +      -       -      +
     47B  GLY      3.8     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 46 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  MSE      4.8     3.8    -      -       -      -
     46A  LEU*     3.6    31.4    -      -       +      -
     53A  TRP*     3.9    24.2    -      -       +      -
     56A  ARG*     2.9    51.7    +      -       +      +
     57A  VAL*     3.9     7.0    -      -       +      +
     60A  THR*     3.3    25.4    -      -       +      +
     42B  MSE      2.8    30.3    +      -       +      +
     45B  GLY*     1.3    72.2    -      -       -      -
     47B  GLY*     1.3    60.9    +      -       -      +
     53B  TRP*     4.3    17.7    -      -       +      -
     57B  VAL*     5.5     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 47 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  MSE      4.3     0.5    -      -       -      +
     43B  PHE*     2.8    32.1    +      -       -      +
     44B  ASP      4.5     1.0    +      -       -      -
     45B  GLY      3.8     0.8    -      -       -      -
     46B  LEU*     1.3    75.7    -      -       -      +
     48B  TRP*     1.3    64.2    +      -       -      +
     53B  TRP*     3.0    19.6    +      -       -      -
----------------------------------------------------------
 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