Contacts of the helix formed by residues 615 - 624 (chain R) in PDB entry 1HI0


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 615 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    613R  GLU      4.7     3.6    -      -       -      +
    614R  LEU*     1.3    76.2    -      -       -      +
    616R  PRO*     1.3    77.5    -      -       -      +
    617R  ILE*     2.9    21.8    +      -       -      +
    618R  ASP*     2.7    37.0    +      -       -      +
    619R  LEU*     3.0    15.1    +      -       -      +
    636R  ASP      5.1     2.1    +      -       -      +
    638R  SER*     3.5    10.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 616 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553R  SER*     3.7    15.9    -      -       -      -
    556R  ASP*     3.5    42.4    -      -       +      +
    557R  THR*     5.4     2.7    -      -       -      +
    614R  LEU      4.9     0.4    -      -       -      +
    615R  THR*     1.3    90.7    -      -       -      +
    617R  ILE*     1.3    65.0    +      -       +      +
    619R  LEU*     3.1     8.1    +      -       +      +
    620R  GLU*     3.0    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 617 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305R  THR*     5.1    10.5    -      -       -      +
    306R  THR*     5.5     7.4    -      -       +      -
    615R  THR*     2.9     9.9    +      -       -      +
    616R  PRO*     1.3    82.1    -      -       +      +
    618R  ASP*     1.3    64.5    +      -       -      +
    620R  GLU*     3.1     1.9    +      -       -      +
    621R  VAL*     2.9    21.9    +      -       +      +
    632R  TRP*     3.8    58.3    -      -       +      +
    636R  ASP*     3.4    32.3    -      -       +      +
    637R  VAL*     3.9    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 618 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    614R  LEU*     3.6    19.7    -      -       +      +
    615R  THR*     2.7    35.6    +      -       -      +
    617R  ILE*     1.3    78.8    -      -       -      +
    619R  LEU*     1.3    56.5    +      -       -      +
    621R  VAL*     3.4     5.6    +      -       -      +
    622R  LEU*     3.0    34.3    +      -       -      +
    636R  ASP      4.7     0.3    -      -       -      +
    637R  VAL*     3.7    11.0    -      -       -      +
    638R  SER*     2.5    50.4    +      -       -      -
    641R  ILE*     4.3    11.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 619 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    549R  LEU*     4.1    26.4    -      -       +      +
    552R  ALA*     3.3    32.5    -      -       +      +
    553R  SER*     3.8    20.9    -      -       -      +
    611R  LEU*     4.1    20.4    -      -       +      -
    614R  LEU*     3.8    33.7    -      -       +      +
    615R  THR      3.0    13.2    +      -       -      +
    616R  PRO*     3.1     8.5    +      -       +      +
    618R  ASP*     1.3    75.3    -      -       -      +
    620R  GLU*     1.3    66.9    +      -       -      +
    622R  LEU*     3.1    14.8    +      -       +      +
    623R  ALA*     3.1    15.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 620 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524R  ASN*     5.1     3.3    -      -       -      +
    550R  ALA*     4.1    14.5    -      -       -      +
    553R  SER*     2.6    27.3    +      -       -      +
    554R  MET*     4.3     0.9    +      -       -      -
    557R  THR*     3.2    33.2    +      -       -      +
    558R  TYR*     4.7     7.3    +      -       -      -
    616R  PRO      3.0    18.1    +      -       -      +
    617R  ILE      3.7     2.9    -      -       -      +
    619R  LEU*     1.3    74.6    -      -       -      +
    621R  VAL*     1.3    57.0    +      -       -      +
    623R  ALA*     3.4     6.1    +      -       -      +
    624R  ASP*     2.9    31.0    +      -       -      +
    627R  LYS*     3.9    22.2    +      -       +      +
    632R  TRP*     3.8    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 621 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    617R  ILE*     2.9    20.7    +      -       +      +
    618R  ASP*     3.7     5.6    -      -       -      +
    620R  GLU*     1.3    74.3    -      -       -      +
    622R  LEU*     1.3    62.5    +      -       +      +
    624R  ASP      3.9     5.6    -      -       -      -
    625R  PRO*     2.9    34.4    -      -       +      +
    627R  LYS*     5.1     0.4    -      -       +      -
    628R  LEU*     4.1    27.8    -      -       +      +
    632R  TRP*     3.8    23.8    -      -       +      -
    637R  VAL*     4.0    25.1    -      -       +      -
    641R  ILE*     5.5     2.0    -      -       +      -
    645R  LEU*     3.5    24.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 622 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    545R  PRO*     3.2    15.8    -      -       -      +
    546R  PHE*     3.1    42.1    +      -       +      -
    549R  LEU*     3.6    27.6    -      -       +      -
    598R  LEU*     3.8    21.8    -      -       +      -
    614R  LEU*     4.2    12.3    -      -       +      -
    618R  ASP      3.0    22.4    +      -       -      +
    619R  LEU*     3.1     5.6    +      -       -      +
    621R  VAL*     1.3    77.4    -      -       -      +
    623R  ALA*     1.3    56.7    +      -       -      +
    641R  ILE*     3.8    27.8    -      -       +      -
    644R  VAL*     4.7     7.2    -      -       +      -
    645R  LEU*     4.6    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 623 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    544R  ARG*     3.5    30.7    +      -       -      +
    546R  PHE      3.6    23.1    +      -       -      +
    547R  PRO*     4.3     6.2    -      -       +      +
    550R  ALA*     4.0    26.0    -      -       +      +
    619R  LEU      3.1    14.3    +      -       -      +
    620R  GLU*     3.9     4.5    -      -       -      +
    622R  LEU*     1.3    77.8    -      -       -      +
    624R  ASP*     1.3    63.0    +      -       +      +
    625R  PRO*     3.9     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 624 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    530R  TYR*     5.9     1.6    -      -       -      -
    543R  LYS      4.3     5.7    -      -       -      +
    544R  ARG*     5.4     3.0    -      -       +      +
    620R  GLU      2.9    12.9    +      -       -      +
    621R  VAL*     3.1     5.8    -      -       -      +
    623R  ALA*     1.3    82.1    -      -       +      +
    625R  PRO*     1.3    60.9    -      -       -      +
    626R  ASN*     2.8    36.8    +      -       -      +
    627R  LYS*     3.0    52.6    +      -       -      +
    630R  TYR*     4.2     3.8    +      -       -      -
----------------------------------------------------------
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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