Contacts of the helix formed by residues 73 - 88 (chain B) in PDB entry 1RRM


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 THR 73 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69B  VAL*     4.7     8.0    -      -       +      +
     71B  ASN      3.9     9.4    -      -       -      +
     72B  PRO*     1.3    75.0    -      -       -      +
     74B  ILE*     1.3    66.1    +      -       -      +
     75B  THR*     3.5     8.2    +      -       -      -
     76B  VAL*     3.1    30.5    +      -       -      +
     77B  VAL*     3.1    24.6    +      -       -      +
    154B  ILE*     3.6     4.7    -      -       -      -
    155B  THR*     3.3    15.3    -      -       +      +
    157B  GLU*     3.5    39.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 74 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73B  THR*     1.3    74.2    -      -       -      +
     75B  THR*     1.3    63.1    +      -       -      +
     77B  VAL*     3.2     5.7    +      -       -      +
     78B  LYS*     3.0    49.2    +      -       +      +
    118B  ASP      4.0     6.7    -      -       -      +
    119B  VAL*     3.9    12.8    -      -       +      -
    120B  ARG*     4.0    30.7    -      -       +      +
    154B  ILE*     4.0    15.3    -      -       +      -
    155B  THR      3.1    13.3    +      -       -      +
    156B  ASP*     3.8    32.5    -      -       +      +
    157B  GLU*     5.2     2.2    -      -       -      +
    163B  PHE*     4.1     6.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 75 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73B  THR*     3.1     9.3    +      -       -      -
     74B  ILE*     1.3    81.7    -      -       -      +
     76B  VAL*     1.3    58.0    +      -       +      +
     78B  LYS*     3.4     8.1    +      -       -      +
     79B  GLU*     3.0    32.6    +      -       +      +
    157B  GLU*     3.8    14.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 76 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  TYR*     3.3    17.7    +      -       -      +
     67B  GLY      4.0     9.2    -      -       -      +
     68B  VAL*     3.9    20.4    -      -       -      -
     69B  VAL*     3.8    26.2    -      -       +      +
     72B  PRO*     4.7     2.7    -      -       +      -
     73B  THR*     3.1    25.2    +      -       -      +
     75B  THR*     1.3    76.2    -      -       +      +
     77B  VAL*     1.3    61.1    +      -       -      +
     79B  GLU*     3.3     4.0    +      -       -      +
     80B  GLY*     2.8    27.2    +      -       -      -
    103B  THR*     4.0    21.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 77 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72B  PRO*     5.4     0.4    -      -       +      -
     73B  THR      3.1    14.7    +      -       -      +
     74B  ILE      3.5     7.2    -      -       -      +
     76B  VAL*     1.3    76.7    -      -       +      +
     78B  LYS*     1.3    57.8    +      -       -      +
     80B  GLY*     3.8     0.3    -      -       -      -
     81B  LEU*     2.8    29.8    +      -       +      +
    103B  THR*     4.4    16.4    -      -       +      +
    106B  ALA*     3.7    28.3    -      -       +      -
    107B  ILE*     3.9     5.3    -      -       +      +
    110B  ILE*     3.9    22.2    -      -       +      -
    119B  VAL*     4.0    11.0    -      -       +      -
    154B  ILE*     3.8    33.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 78 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74B  ILE*     3.0    38.9    +      -       +      +
     75B  THR*     3.8     6.5    -      -       -      +
     77B  VAL*     1.3    73.0    -      -       -      +
     79B  GLU*     1.3    65.9    +      -       -      +
     81B  LEU*     3.4    11.9    +      -       +      +
     82B  GLY*     3.1    19.2    +      -       -      -
    117B  ALA      3.5    22.7    -      -       -      +
    118B  ASP*     4.3    10.0    +      -       -      +
    119B  VAL*     4.2    10.5    -      -       +      -
    120B  ARG*     5.9     2.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 79 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  TYR*     2.7    31.5    +      -       +      +
     67B  GLY*     4.2     9.9    -      -       -      +
     75B  THR*     3.0    21.5    +      -       +      +
     76B  VAL*     3.6     6.5    -      -       -      +
     77B  VAL      3.3     0.2    -      -       -      -
     78B  LYS*     1.3    77.8    -      -       -      +
     80B  GLY*     1.3    62.6    +      -       -      +
     82B  GLY*     3.2     4.2    +      -       -      -
     83B  VAL*     3.1    27.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 80 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  LEU*     4.4     2.8    -      -       -      +
     65B  TYR*     3.5    33.1    -      -       -      -
     76B  VAL      2.8    12.0    +      -       -      -
     79B  GLU*     1.3    76.6    -      -       -      +
     81B  LEU*     1.3    63.0    +      -       -      +
     83B  VAL*     3.3     3.6    +      -       -      +
     84B  PHE*     2.9    22.7    +      -       -      +
    107B  ILE*     3.5    16.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 81 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77B  VAL*     2.8    19.9    +      -       +      +
     78B  LYS*     3.6    12.1    -      -       +      +
     79B  GLU      3.2     0.2    -      -       -      -
     80B  GLY*     1.3    76.4    -      -       -      +
     82B  GLY*     1.3    57.3    +      -       -      +
     84B  PHE*     3.2     2.1    +      -       +      +
     85B  GLN*     2.9    62.9    +      -       +      +
    107B  ILE*     3.7    36.7    -      -       +      +
    110B  ILE*     3.6    30.5    -      -       +      -
    111B  SER*     4.1    13.9    -      -       -      +
    117B  ALA*     5.6     6.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 82 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78B  LYS      3.1    13.6    +      -       -      -
     79B  GLU      3.2     3.5    +      -       -      -
     81B  LEU*     1.3    77.2    -      -       -      +
     83B  VAL*     1.3    61.6    +      -       -      +
     85B  GLN*     3.4    11.8    +      -       -      +
     86B  ASN*     3.0    35.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 83 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  LEU*     4.0    21.3    -      -       +      -
     64B  ILE      4.9     3.6    -      -       -      +
     65B  TYR*     3.8    31.9    -      -       +      -
     79B  GLU*     3.1    18.0    +      -       +      +
     80B  GLY      3.5     6.7    -      -       -      +
     81B  LEU      3.2     0.2    -      -       -      -
     82B  GLY*     1.3    76.9    -      -       -      +
     84B  PHE*     1.3    57.8    +      -       -      +
     86B  ASN*     3.9     5.8    -      -       -      +
     87B  SER*     3.0    28.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 84 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  LEU*     3.4    25.3    -      -       +      +
     80B  GLY      2.9    11.3    +      -       -      +
     81B  LEU*     3.2     6.7    +      -       +      +
     83B  VAL*     1.3    78.0    -      -       -      +
     85B  GLN*     1.3    71.1    +      -       +      +
     87B  SER*     2.6    21.1    +      -       -      -
     88B  GLY*     3.6     2.9    +      -       -      -
     89B  ALA*     3.5    35.3    +      -       +      +
     90B  ASP*     4.9     0.4    -      -       -      -
     91B  TYR      4.1     3.8    -      -       -      -
     92B  LEU*     3.5    29.8    -      -       +      -
    107B  ILE*     3.9    15.3    -      -       +      -
    111B  SER*     3.2    33.0    -      -       -      -
    133B  VAL*     3.7    28.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 85 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81B  LEU*     2.9    50.5    +      -       +      +
     82B  GLY*     3.9    10.0    -      -       -      +
     84B  PHE*     1.3    85.0    -      -       +      +
     86B  ASN*     1.3    65.7    +      -       -      +
     88B  GLY*     3.7     7.4    +      -       -      -
    110B  ILE*     5.6     0.8    +      -       -      +
    111B  SER*     4.7    13.1    +      -       -      +
    114B  PRO*     6.4     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 86 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82B  GLY*     3.0    23.4    +      -       -      +
     83B  VAL*     3.9     5.5    -      -       -      +
     85B  GLN*     1.3    81.1    -      -       -      +
     87B  SER*     1.3    63.1    +      -       -      +
     88B  GLY*     3.2     2.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 87 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  LYS*     2.9    35.8    +      -       -      +
     35B  LEU*     4.4    14.1    -      -       -      +
     63B  ALA*     4.9     4.3    -      -       -      -
     83B  VAL*     3.0    17.2    +      -       -      -
     84B  PHE*     2.6    22.5    +      -       -      -
     86B  ASN*     1.3    77.6    -      -       -      +
     88B  GLY*     1.3    59.6    +      -       -      +
     89B  ALA*     3.0    22.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 88 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  LYS*     4.6     5.8    -      -       -      +
     84B  PHE      3.6     4.2    +      -       -      -
     85B  GLN      3.7     5.9    +      -       -      -
     86B  ASN      3.2     6.1    +      -       -      -
     87B  SER*     1.3    77.4    +      -       -      +
     89B  ALA*     1.3    67.9    +      -       -      +
     90B  ASP*     3.6     3.5    +      -       -      +
----------------------------------------------------------
 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