Contacts of the helix formed by residues 584 - 589 (chain A) in PDB entry 1MMG


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 TRP 584 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    465A  SER*     3.1    20.5    +      -       -      -
    466A  PHE*     3.2    42.4    -      +       +      +
    469A  LEU*     3.9    29.8    -      -       +      -
    525A  ILE*     4.5     8.7    -      -       +      -
    529A  LEU*     3.9    18.4    -      -       +      +
    540A  ASP*     3.9     1.2    +      -       -      -
    543A  LEU*     3.9    14.1    -      -       +      -
    547A  LEU*     5.6     0.9    -      -       +      -
    568A  PHE*     3.8    30.1    -      +       -      -
    579A  TYR*     4.1     9.9    -      -       +      -
    580A  GLU      2.9    26.9    +      -       -      -
    581A  ILE*     3.2    29.8    +      -       +      +
    582A  GLN      3.3     9.2    -      -       -      -
    583A  ASP*     1.3    76.0    -      -       -      +
    585A  LEU*     1.4    54.0    +      -       -      +
    587A  LYS*     3.2     8.1    +      -       +      +
    588A  ASN*     2.7    36.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 585 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529A  LEU*     4.3     3.1    -      -       +      -
    532A  GLN*     3.4    42.2    -      -       +      +
    533A  SER*     4.1     7.2    -      -       -      +
    538A  ALA*     3.5    14.4    -      -       +      +
    539A  THR*     3.3    46.0    -      -       -      +
    540A  ASP*     3.9     7.3    +      -       -      +
    543A  LEU*     4.1    17.5    -      -       +      -
    583A  ASP      3.2     1.4    -      -       -      -
    584A  TRP*     1.4    75.8    -      -       -      +
    586A  GLU*     1.3    56.1    +      -       -      +
    588A  ASN*     3.2     6.9    +      -       -      +
    589A  LYS*     3.0    51.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 586 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  SER*     5.7     4.5    -      -       -      -
    420A  ALA*     6.0     2.1    -      -       -      +
    423A  LYS*     5.9     1.1    +      -       -      -
    583A  ASP*     3.1    30.9    +      -       +      +
    585A  LEU*     1.3    73.8    -      -       -      +
    587A  LYS*     1.3    58.4    +      -       +      +
    589A  LYS*     3.1     4.3    +      -       -      -
    590A  ASP*     2.6    33.4    +      -       -      -
    591A  PRO*     3.2    30.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 587 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    465A  SER*     2.9    23.5    +      -       -      -
    466A  PHE*     3.7    31.9    -      -       +      -
    467A  GLU*     2.9    33.8    +      -       -      +
    582A  GLN      4.2     2.2    -      -       -      -
    583A  ASP*     2.9    32.7    +      -       +      +
    584A  TRP*     3.4    11.9    -      -       +      +
    586A  GLU*     1.3    81.5    -      -       +      +
    588A  ASN*     1.3    60.5    +      -       -      +
    589A  LYS      3.4     0.2    +      -       -      -
    590A  ASP*     3.5     7.4    +      -       -      +
    630A  VAL*     3.3    22.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 588 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    466A  PHE*     4.4     4.3    -      -       +      -
    529A  LEU*     3.7    22.4    -      -       +      +
    530A  ASP*     2.8    25.1    +      -       -      +
    533A  SER*     2.9    24.5    +      -       -      +
    584A  TRP      2.7    20.4    +      -       -      +
    585A  LEU      3.6     5.4    -      -       -      +
    586A  GLU      3.1     0.2    -      -       -      -
    587A  LYS*     1.3    73.5    -      -       -      +
    589A  LYS*     1.3    60.0    +      -       -      +
    620A  ARG*     4.1     0.2    +      -       -      -
    629A  THR*     3.4    14.8    -      -       -      +
    630A  VAL*     3.0    28.5    +      -       -      +
    631A  ALA*     2.9    36.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 589 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    532A  GLN      4.7     0.6    +      -       -      -
    533A  SER*     2.9    39.7    +      -       -      +
    534A  VAL      5.2     0.2    -      -       -      -
    535A  PHE      3.7    18.8    +      -       -      -
    536A  PRO*     4.7     9.0    +      -       -      +
    538A  ALA      5.3     1.2    +      -       -      -
    585A  LEU*     3.0    41.7    +      -       -      +
    586A  GLU*     3.9     4.0    -      -       -      +
    588A  ASN*     1.3    80.3    -      -       -      +
    590A  ASP*     1.3    68.5    +      -       -      +
    591A  PRO*     3.2    15.7    -      -       +      +
    620A  ARG*     2.9    23.5    +      -       -      +
    629A  THR*     5.8     1.8    -      -       +      +
----------------------------------------------------------
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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