Contacts of the strand formed by residues 499 - 502 (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 ASP 499 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305R  THR      5.4     1.0    -      -       -      +
    306R  THR      4.8     0.5    -      -       -      -
    307R  ARG*     3.6    27.8    +      -       -      +
    310R  LYS*     2.6    32.5    +      -       +      +
    495R  ALA*     3.2     3.3    -      -       -      +
    496R  PHE      2.8    31.8    +      -       -      +
    497R  LEU      3.3     3.5    -      -       -      +
    498R  GLY*     1.3    81.5    -      -       -      +
    500R  ILE*     1.3    62.7    +      -       -      +
    501R  LEU      3.7     0.2    +      -       -      -
    514R  PHE*     3.8    19.2    -      -       +      -
    515R  VAL      3.4     5.7    -      -       -      +
    516R  GLY*     3.4    20.8    -      -       -      -
    557R  THR      5.1     0.5    -      -       -      +
    631R  LYS*     4.2     7.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 500 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75R  VAL*     3.4    35.0    -      -       +      -
     79R  GLY      3.5    21.3    -      -       -      +
     81R  ARG*     3.9    30.1    -      -       +      -
    494R  GLY      4.1     0.2    -      -       -      +
    495R  ALA*     3.7    15.9    -      -       +      -
    498R  GLY      3.9     0.2    +      -       -      -
    499R  ASP*     1.3    74.1    -      -       -      +
    501R  LEU*     1.3    65.3    +      -       -      +
    502R  LEU*     3.5     2.4    +      -       -      +
    514R  PHE*     3.3     5.4    -      -       -      -
    515R  VAL*     2.7    49.4    +      -       +      +
    516R  GLY      5.1     0.2    -      -       -      +
    517R  ASN*     4.0    32.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 501 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75R  VAL*     3.3    17.7    +      -       -      +
    314R  VAL*     3.9    15.5    -      -       +      -
    320R  CYS*     3.6    23.3    -      -       -      -
    456R  MET*     4.1    14.6    -      -       +      -
    494R  GLY      3.3    13.8    +      -       -      +
    495R  ALA*     4.3     0.2    -      -       -      +
    499R  ASP      3.7     2.0    +      -       -      -
    500R  ILE*     1.3    76.4    -      -       -      +
    502R  LEU*     1.3    62.2    +      -       -      +
    503R  TYR*     3.5    40.4    +      -       +      +
    512R  ALA*     3.8    18.6    -      -       +      -
    513R  ILE*     3.7    14.8    -      -       -      +
    514R  PHE*     3.7    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 502 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75R  VAL*     3.3    22.4    -      -       +      +
     76R  TYR*     3.4    28.9    -      -       -      +
     77R  GLY      4.0     7.2    -      -       -      +
     79R  GLY*     4.3     4.9    -      -       -      -
    500R  ILE*     3.5     2.1    +      -       +      -
    501R  LEU*     1.3    69.4    -      -       -      +
    503R  TYR*     1.3    63.6    +      -       -      +
    511R  SER      4.4     0.7    -      -       -      +
    512R  ALA*     3.3     6.4    -      -       -      -
    513R  ILE*     2.6    55.8    +      -       +      +
    515R  VAL*     4.0    24.5    -      -       +      -
    562R  PRO*     3.7    27.4    -      -       +      -
----------------------------------------------------------
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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