Contacts of the helix formed by residues 207 - 221 (chain A) in PDB entry 1RHM


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 207 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  HIS*     4.4    11.4    -      -       +      +
    205A  ASP      5.5     0.4    -      -       -      +
    206A  LEU*     1.3    76.4    -      -       -      +
    208A  ARG*     1.3    65.4    +      -       -      +
    209A  GLU*     3.3    14.4    +      -       -      +
    210A  GLU*     2.7    45.1    +      -       -      +
    211A  ILE*     3.0    21.1    +      -       -      +
    245A  GLY*     4.0     1.8    -      -       -      -
    246A  THR*     3.4    15.9    -      -       -      +
    247A  ASN*     3.1    19.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  THR*     1.3    71.0    -      -       -      +
    209A  GLU*     1.3    94.3    +      -       -      +
    211A  ILE*     3.2    13.7    +      -       -      +
    212A  VAL*     3.2    19.0    +      -       -      +
    245A  GLY*     3.7     5.1    -      -       -      -
    247A  ASN*     2.7    28.5    +      -       -      +
    254A  GLY*     3.8    13.1    -      -       -      +
    255A  PRO*     2.9    46.4    +      -       -      +
    256A  VAL*     3.3    30.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  THR*     3.3    12.1    +      -       -      +
    208A  ARG*     1.3   102.1    +      -       -      +
    210A  GLU*     1.3    64.2    +      -       +      +
    212A  VAL*     3.4     6.9    +      -       -      +
    213A  GLU*     3.0    26.2    +      -       -      +
    247A  ASN*     3.1    22.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  ASP      4.3     2.9    -      -       -      +
    206A  LEU*     3.5    27.0    -      -       +      +
    207A  THR*     2.7    53.0    +      -       -      +
    209A  GLU*     1.3    79.7    -      -       +      +
    211A  ILE*     1.3    56.8    +      -       -      +
    213A  GLU*     3.3    14.8    +      -       -      +
    214A  LEU*     2.8    31.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168A  ILE*     4.0    16.2    -      -       +      -
    170A  ASN*     3.9    20.9    -      -       -      +
    206A  LEU*     3.8    23.3    -      -       +      +
    207A  THR      3.0    18.5    +      -       -      +
    208A  ARG*     3.2     8.9    +      -       -      +
    210A  GLU*     1.3    75.3    -      -       -      +
    212A  VAL*     1.3    62.8    +      -       +      +
    214A  LEU*     3.4     3.4    +      -       -      +
    215A  MET*     3.0    31.4    +      -       +      +
    234A  LEU*     5.0     8.7    -      -       +      -
    243A  ILE*     4.0    24.2    -      -       +      -
    245A  GLY*     4.3     8.1    -      -       -      -
    256A  VAL*     5.1     2.0    -      -       +      -
    261A  ILE*     4.2    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208A  ARG      3.2    14.6    +      -       -      +
    209A  GLU*     3.8     8.1    -      -       -      +
    211A  ILE*     1.3    75.5    -      -       -      +
    213A  GLU*     1.3    54.2    +      -       -      +
    215A  MET*     3.2     6.3    +      -       -      +
    216A  ARG*     2.8    53.8    +      -       -      +
    256A  VAL*     3.9    23.6    -      -       +      -
    260A  LYS*     3.9    28.7    -      -       +      +
    261A  ILE*     4.4     8.1    -      -       +      -
    264A  PHE*     3.8    21.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  GLU*     3.0    18.6    +      -       -      +
    210A  GLU*     3.5    13.2    -      -       -      +
    212A  VAL*     1.3    78.2    -      -       -      +
    214A  LEU*     1.3    57.0    +      -       -      +
    216A  ARG*     3.4    17.1    +      -       -      +
    217A  ASP*     3.0    47.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  ILE*     4.1     7.6    -      -       +      -
    168A  ILE*     3.2    35.2    -      -       +      -
    201A  ARG*     5.7     4.0    -      -       -      +
    203A  LYS*     4.1    24.2    -      -       +      -
    206A  LEU*     3.8    13.9    -      -       +      -
    210A  GLU      2.8    20.8    +      -       -      +
    211A  ILE*     3.7     3.6    -      -       -      +
    213A  GLU*     1.3    74.6    -      -       -      +
    215A  MET*     1.3    71.1    +      -       +      +
    217A  ASP*     3.3     9.2    +      -       +      +
    218A  VAL*     2.9    45.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  ILE*     3.9    20.9    -      -       +      -
    168A  ILE*     4.5     5.2    -      -       +      -
    211A  ILE*     3.0    26.2    +      -       +      +
    212A  VAL*     3.6     4.5    -      -       -      +
    214A  LEU*     1.3    99.1    -      -       +      +
    216A  ARG*     1.3    65.6    +      -       -      +
    218A  VAL*     3.4     8.1    +      -       +      -
    219A  SER*     3.2    23.9    +      -       -      -
    230A  PHE*     4.8     1.8    -      -       +      -
    232A  CYS*     4.1    22.7    -      -       -      -
    234A  LEU*     6.2     0.4    -      -       -      -
    261A  ILE*     4.1    24.7    -      -       +      +
    264A  PHE*     4.1    16.9    -      -       +      +
    265A  PHE*     3.8    26.0    -      -       +      -
    280A  PHE*     5.4     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  VAL*     2.8    36.2    +      -       -      +
    213A  GLU*     3.5    16.4    -      -       -      +
    215A  MET*     1.3    76.3    -      -       -      +
    217A  ASP*     1.3    63.2    +      -       -      +
    219A  SER*     2.7    22.2    +      -       -      -
    220A  LYS*     3.4    34.2    +      -       +      +
    260A  LYS*     5.7     2.6    -      -       -      +
    264A  PHE*     3.9    34.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  GLU*     3.0    38.7    +      -       -      +
    214A  LEU*     3.6     8.8    -      -       +      +
    216A  ARG*     1.3    80.6    -      -       -      +
    218A  VAL*     1.3    65.1    +      -       +      +
    220A  LYS*     3.2    24.4    +      -       -      +
    221A  GLU*     3.4    14.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164A  LEU*     3.7    26.7    -      -       +      -
    166A  ILE*     4.4    11.0    -      -       +      -
    201A  ARG*     4.7     7.6    -      -       -      +
    214A  LEU*     2.9    37.5    +      -       +      +
    215A  MET*     3.9    12.3    -      -       +      +
    216A  ARG      3.4     0.2    -      -       -      -
    217A  ASP*     1.3    76.1    -      -       +      +
    219A  SER*     1.3    59.9    +      -       -      +
    221A  GLU*     3.3    15.0    -      -       -      +
    224A  HIS*     2.8    27.3    +      -       +      -
    230A  PHE*     3.8    24.7    -      -       +      -
    265A  PHE*     4.5     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  MET      3.2    12.3    +      -       -      -
    216A  ARG*     2.7    22.3    +      -       -      -
    218A  VAL*     1.3    73.8    -      -       -      +
    220A  LYS*     1.3    62.9    +      -       -      +
    221A  GLU      3.1    10.5    +      -       -      +
    224A  HIS*     4.3     0.2    -      -       -      -
    264A  PHE*     3.6    33.2    +      -       -      +
    265A  PHE*     3.7    19.7    -      -       -      -
    269A  ARG      5.2     2.5    -      -       -      +
    270A  CYS*     3.5    26.1    -      -       -      +
    272A  SER*     4.8     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  ARG*     3.4    35.4    -      -       +      +
    217A  ASP*     3.2    17.3    +      -       -      +
    219A  SER*     1.3    76.4    +      -       -      +
    221A  GLU*     1.3    63.9    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
    164A  LEU*     4.2     2.6    -      -       -      +
    201A  ARG*     3.1    33.4    +      -       -      -
    217A  ASP      3.4    11.6    +      -       -      +
    218A  VAL*     3.3    21.4    -      -       -      +
    219A  SER      3.1     4.6    -      -       -      +
    220A  LYS*     1.3    84.2    -      -       -      +
    222A  ASP*     1.3    61.5    +      -       -      +
    224A  HIS*     3.0    20.7    -      -       -      +
    227A  ARG*     3.0    31.7    +      -       -      +
    272A  SER*     3.6     5.4    +      -       -      -
----------------------------------------------------------
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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