Contacts of the strand formed by residues 244 - 247 (chain A) in PDB entry 1LU9


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 LYS 244 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  TRP*     3.5    38.1    -      -       +      +
    210A  GLN*     3.4    27.1    -      -       +      +
    212A  GLU      2.6    30.1    +      -       -      -
    213A  SER*     3.6    11.3    +      -       -      +
    215A  ILE*     2.8    29.4    +      -       +      +
    216A  GLU      3.3    12.3    -      -       -      +
    217A  ILE*     5.4     0.2    -      -       -      -
    240A  GLU*     3.4     6.6    -      -       -      +
    241A  TYR*     2.8    36.2    +      -       -      +
    243A  GLY*     1.3    84.2    -      -       -      +
    245A  ARG*     1.3    63.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  ALA*     2.7    44.6    +      -       -      +
    114A  ALA*     4.7     3.8    -      -       -      +
    209A  TRP*     5.7     0.4    -      -       -      -
    216A  GLU*     2.9    10.4    +      -       -      +
    217A  ILE*     3.1    22.7    -      -       +      +
    218A  VAL*     2.9    25.7    +      -       -      +
    238A  GLY*     3.3    30.7    -      -       -      +
    239A  LYS      3.4     4.0    -      -       -      +
    240A  GLU*     4.1    14.6    -      -       +      -
    241A  TYR*     5.2     0.7    -      -       -      -
    243A  GLY      5.5     3.0    +      -       -      +
    244A  LYS*     1.3    79.6    -      -       -      +
    246A  ALA*     1.3    61.5    +      -       -      +
    247A  PHE*     4.6     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  TRP*     4.8     0.9    -      -       +      -
    218A  VAL*     3.3    22.2    -      -       +      -
    232A  ILE*     3.8    27.8    -      -       +      -
    236A  ASP*     3.7     7.6    -      -       -      +
    238A  GLY      2.7    28.1    +      -       -      -
    239A  LYS      3.0    12.7    +      -       -      -
    241A  TYR*     3.9    17.7    -      -       +      -
    245A  ARG*     1.3    74.5    -      -       -      +
    247A  PHE*     1.3    60.3    +      -       -      +
    248A  GLY      4.1     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  GLY      6.1     0.2    -      -       -      +
    109A  LEU*     3.8    41.3    -      -       +      -
    110A  VAL*     4.5     7.0    -      -       +      -
    113A  ALA*     3.7    31.4    -      -       +      -
    217A  ILE*     3.8    24.0    -      -       +      -
    218A  VAL      2.8    11.7    +      -       -      +
    219A  ALA*     3.4     6.0    -      -       +      -
    220A  ASP*     3.0    26.3    +      -       -      +
    232A  ILE*     4.2     4.6    -      -       -      +
    236A  ASP      3.4     3.8    -      -       -      -
    237A  LYS*     3.6    21.5    -      -       +      -
    238A  GLY*     3.4    31.6    -      -       -      -
    245A  ARG*     4.6     2.7    -      -       +      -
    246A  ALA*     1.3    77.3    -      -       -      +
    248A  GLY*     1.3    60.8    +      -       -      +
    252A  ILE*     4.0    18.0    -      -       +      +
----------------------------------------------------------
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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