Contacts of the helix formed by residues 219 - 237 (chain A) in PDB entry 1RM1


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 GLN 219 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  ILE*     3.7     3.6    -      -       -      -
    217A  ALA*     3.5    13.5    -      -       -      +
    218A  LYS*     1.3    90.4    +      -       +      +
    220A  ARG*     1.3    63.8    +      -       -      +
    221A  GLU*     3.0    14.3    +      -       +      +
    222A  GLU*     3.1    32.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  LEU*     3.2    33.8    -      -       +      +
    127A  LYS      5.1     0.4    +      -       -      -
    128A  SER*     4.9     7.9    -      -       -      +
    129A  GLU*     2.7    51.9    +      -       -      +
    160A  ILE*     3.6    11.3    -      -       +      +
    219A  GLN*     1.3    71.9    -      -       -      +
    221A  GLU*     1.3    67.4    +      -       +      +
    223A  ILE*     3.3    21.3    +      -       -      +
    224A  TYR*     3.1    54.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  GLN*     3.0    10.0    -      -       +      -
    220A  ARG*     1.3    85.0    -      -       +      +
    222A  GLU*     1.3    57.8    +      -       +      +
    224A  TYR*     3.2    25.6    +      -       -      +
    225A  GLN*     2.8    63.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  PRO*     3.5    19.4    -      -       +      +
    201A  LYS      5.0     2.1    -      -       -      +
    202A  ILE*     3.8    10.7    -      -       +      +
    216A  GLY      4.3     1.7    -      -       -      +
    217A  ALA*     3.1    12.6    -      -       +      -
    218A  LYS*     2.9    31.1    +      -       -      +
    219A  GLN*     3.1    30.7    +      -       +      +
    221A  GLU*     1.3    73.8    -      -       +      +
    223A  ILE*     1.3    56.9    +      -       -      +
    225A  GLN*     3.9    11.9    -      -       -      +
    226A  ALA*     2.8    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  PRO*     3.8    26.2    -      -       +      -
     67A  LEU*     4.5     8.3    -      -       +      -
    160A  ILE*     3.5    30.7    -      -       +      +
    162A  GLY*     4.3     9.9    -      -       -      +
    202A  ILE*     4.5     3.1    -      -       +      -
    214A  LEU*     3.6    39.6    -      -       +      +
    215A  THR*     4.4     1.8    -      -       -      +
    217A  ALA*     3.4    27.6    -      -       +      -
    219A  GLN      4.6     0.9    -      -       -      +
    220A  ARG      3.3    11.6    +      -       -      +
    221A  GLU      3.2     0.4    -      -       -      -
    222A  GLU*     1.3    76.0    -      -       -      +
    224A  TYR*     1.3    60.9    +      -       +      +
    226A  ALA*     3.3     5.9    +      -       -      +
    227A  PHE*     2.9    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  VAL*     3.7    18.1    -      -       +      +
     65A  PRO*     3.3    47.5    +      -       +      -
     67A  LEU*     4.3    13.0    +      -       +      +
    220A  ARG*     3.1    52.3    +      -       -      -
    221A  GLU*     3.2    28.9    +      -       -      +
    223A  ILE*     1.3    77.8    -      -       +      +
    225A  GLN*     1.3    61.1    +      -       -      +
    227A  PHE*     3.3     3.3    +      -       -      +
    228A  GLU*     3.1    33.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 225 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  PRO*     4.2    21.4    -      -       +      +
    221A  GLU*     2.8    53.0    +      -       +      +
    222A  GLU*     3.9    14.9    -      -       -      +
    224A  TYR*     1.3    72.1    -      -       -      +
    226A  ALA*     1.3    61.2    -      -       -      +
    228A  GLU*     3.5     7.6    +      -       -      +
    229A  ALA*     3.1    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  MET*     3.5    26.9    -      -       +      +
    200A  PRO*     3.9     3.8    -      -       +      +
    202A  ILE*     3.7    34.3    -      -       +      -
    204A  LEU*     4.6     0.7    -      -       +      -
    214A  LEU*     3.9     7.4    -      -       +      -
    222A  GLU      2.8    19.9    +      -       -      +
    223A  ILE      3.5     4.9    -      -       -      +
    225A  GLN*     1.3    78.7    -      -       -      +
    227A  PHE*     1.3    61.1    +      -       -      +
    229A  ALA      3.4     1.2    +      -       -      -
    230A  ILE*     3.1    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  SER*     3.5    22.9    -      -       -      -
     63A  ILE*     3.6    25.8    -      -       +      -
     65A  PRO*     3.8    21.5    -      -       +      -
    164A  CYS*     3.6    29.8    -      -       +      -
    166A  VAL*     3.8    23.1    -      -       +      -
    212A  ILE*     4.7     4.7    -      -       +      -
    214A  LEU*     3.6    15.0    -      -       +      +
    223A  ILE      2.9    16.3    +      -       -      +
    224A  TYR      3.3     3.6    +      -       -      +
    226A  ALA*     1.3    75.4    -      -       -      +
    228A  GLU*     1.3    72.7    +      -       -      +
    230A  ILE*     3.3    10.8    +      -       +      +
    231A  TYR*     3.0    43.6    +      +       -      +
    234A  LEU*     4.5     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  SER*     3.2    35.4    +      -       -      -
     63A  ILE      3.9    10.6    -      -       -      +
     65A  PRO*     5.3     1.7    -      -       -      +
    224A  TYR*     3.1    22.8    +      -       +      +
    225A  GLN*     3.9     8.1    -      -       -      +
    227A  PHE*     1.3    80.0    -      -       -      +
    229A  ALA*     1.3    63.3    +      -       -      +
    231A  TYR*     3.5     3.3    +      -       -      +
    232A  PRO*     3.2    20.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  MET*     4.0    19.1    -      -       +      -
    199A  LYS      5.1     5.8    -      -       -      +
    200A  PRO*     5.5     0.2    -      -       +      -
    225A  GLN      3.1    17.1    +      -       -      +
    226A  ALA      3.6     5.2    -      -       -      +
    228A  GLU*     1.3    77.7    -      -       -      +
    230A  ILE*     1.3    57.3    +      -       -      +
    232A  PRO*     3.3    15.9    -      -       -      +
    233A  VAL*     4.0     6.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  LEU*     5.8     0.2    -      -       +      -
    195A  TYR*     3.8    46.0    -      -       +      +
    197A  MET*     3.9     6.1    -      -       +      -
    204A  LEU*     3.7    26.2    -      -       +      -
    206A  ILE*     4.3     4.3    -      -       +      -
    212A  ILE*     5.2     0.4    -      -       +      -
    226A  ALA      3.1    12.8    +      -       -      +
    227A  PHE*     3.3    18.4    -      -       +      +
    229A  ALA*     1.3    77.5    -      -       -      +
    231A  TYR*     1.3    69.0    +      -       -      +
    232A  PRO      3.3     1.1    -      -       -      -
    233A  VAL*     3.0    21.7    -      -       +      +
    234A  LEU*     2.9    52.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  SER*     3.7    41.5    +      -       -      -
     63A  ILE*     4.8     6.9    -      -       +      +
    166A  VAL*     3.9    28.1    +      -       +      -
    168A  PHE*     3.6    24.4    -      +       -      -
    227A  PHE*     3.0    37.0    +      +       -      +
    228A  GLU*     3.8     4.5    -      -       -      +
    230A  ILE*     1.3    79.9    -      -       -      +
    232A  PRO*     1.3    68.4    -      -       +      +
    234A  LEU*     3.2     4.2    +      -       +      +
    235A  SER*     2.8    39.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228A  GLU      3.2    17.9    -      -       -      +
    229A  ALA*     3.3    12.8    -      -       -      +
    230A  ILE      3.4     0.2    -      -       -      -
    231A  TYR*     1.3    95.7    -      -       +      +
    233A  VAL*     1.3    56.7    -      -       +      +
    235A  SER*     3.3     7.3    +      -       -      -
    236A  GLU*     2.8    29.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  LEU*     3.7    27.6    -      -       +      -
    179A  HIS*     3.6    35.4    -      -       +      +
    195A  TYR*     5.6     1.6    -      -       +      +
    229A  ALA      4.0     5.8    -      -       -      +
    230A  ILE*     3.0    41.7    -      -       +      +
    232A  PRO*     1.3    72.2    -      -       +      +
    234A  LEU*     1.3    64.9    +      -       -      +
    236A  GLU*     4.1    10.8    -      -       -      +
    237A  PHE*     3.0    33.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  VAL*     3.8    21.3    -      -       +      -
    168A  PHE*     3.5    14.5    -      -       +      -
    170A  ILE*     3.8    20.7    -      -       +      +
    175A  LEU*     4.2    14.1    -      -       +      -
    206A  ILE*     4.1    22.0    -      -       +      -
    212A  ILE*     3.7    20.6    -      -       +      -
    227A  PHE*     4.5     1.8    -      -       +      -
    230A  ILE*     2.9    50.2    +      -       +      +
    231A  TYR*     3.4    12.1    -      -       +      +
    233A  VAL*     1.3    76.0    -      -       -      +
    235A  SER*     1.3    64.4    +      -       -      +
    237A  PHE*     3.1    12.6    +      -       -      +
    238A  ARG*     3.2     9.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168A  PHE*     3.8    19.0    -      -       -      -
    231A  TYR*     2.8    30.9    +      -       -      -
    232A  PRO*     3.5     7.6    -      -       -      -
    234A  LEU*     1.3    76.9    -      -       -      +
    236A  GLU*     1.3    61.1    +      -       -      +
    238A  ARG*     3.1    22.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 236 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178A  SER*     5.0     2.5    +      -       -      -
    179A  HIS*     5.1     3.8    -      -       -      -
    232A  PRO      2.8    16.6    +      -       -      +
    233A  VAL*     3.6    13.4    -      -       -      +
    234A  LEU      3.3     0.2    -      -       -      -
    235A  SER*     1.3    75.8    -      -       -      +
    237A  PHE*     1.3    88.5    +      -       +      +
    238A  ARG      3.4     2.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  ILE*     3.6     9.7    -      -       +      -
    171A  ARG*     2.9    57.2    +      -       +      +
    174A  GLY*     3.2    20.4    -      -       -      -
    175A  LEU*     3.6    29.6    -      -       +      -
    178A  SER*     3.4    30.5    -      -       -      -
    179A  HIS*     4.3     2.2    -      +       -      -
    233A  VAL*     3.0    33.5    +      -       +      +
    234A  LEU      3.1     7.5    +      -       -      +
    235A  SER      3.1     1.0    -      -       -      -
    236A  GLU*     1.3   105.8    -      -       +      +
    238A  ARG*     1.3    64.2    +      -       -      +
----------------------------------------------------------
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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