Contacts of the strand formed by residues 109 - 112 (chain B) in PDB entry 1LHP


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 VAL 109 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78B  ASP      3.0     7.0    +      -       -      +
     79B  TYR*     3.2    43.5    -      -       +      +
     80B  VAL      3.1    21.8    +      -       -      +
    107B  ARG      3.7    13.7    -      -       -      +
    108B  LEU*     1.3    74.3    -      -       -      +
    110B  TYR*     1.3    61.5    +      -       -      +
    111B  VAL*     4.1     4.3    -      -       +      -
    145B  ASP*     3.4    21.8    -      -       +      +
    146B  ILE*     4.0    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 110 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80B  VAL*     3.5    20.6    -      -       +      +
     82B  THR*     2.8    42.1    +      -       +      +
     91B  LEU*     5.2     2.1    -      -       -      +
     94B  VAL*     4.1     8.5    -      -       +      +
     95B  VAL*     5.7     2.0    -      -       +      -
     98B  VAL*     3.9    31.9    -      -       +      -
    102B  LYS*     4.4     2.7    -      -       -      -
    108B  LEU*     4.0     4.8    -      -       +      +
    109B  VAL*     1.3    70.7    -      -       -      +
    111B  VAL*     1.3    71.9    +      -       -      +
    112B  CYS*     3.8     9.3    -      -       +      +
    140B  VAL*     3.5    31.5    -      -       +      +
    143B  VAL*     3.7    26.0    -      -       +      +
    144B  ALA*     3.6    19.7    -      -       +      -
    145B  ASP*     2.8    36.8    +      -       -      +
    146B  ILE      3.2     8.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 111 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79B  TYR*     4.2     2.2    -      -       +      -
     80B  VAL      2.9     8.3    +      -       -      +
     81B  LEU*     3.4    27.4    -      -       +      +
     82B  THR      3.2    23.2    +      -       -      -
    109B  VAL*     4.1     9.9    -      -       +      -
    110B  TYR*     1.3    77.3    -      -       -      +
    112B  CYS*     1.3    62.9    +      -       -      +
    146B  ILE*     3.4    39.3    -      -       +      +
    148B  THR*     5.4     3.8    -      -       +      -
    238B  ALA*     4.2    20.2    -      -       +      +
    241B  LEU*     5.9     0.9    -      -       +      -
    242B  LEU*     4.0    27.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 112 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82B  THR*     3.8     7.2    -      -       -      -
    110B  TYR*     3.8    20.8    +      -       +      -
    111B  VAL*     1.3    78.3    -      -       -      +
    113B  ASP*     1.3    63.5    +      -       -      +
    114B  PRO*     3.3    19.9    -      -       -      +
    136B  TYR*     4.2    10.5    -      -       -      -
    140B  VAL*     3.7    25.6    -      -       -      -
    141B  VAL*     6.1     1.6    -      -       -      -
    144B  ALA*     4.2    15.5    -      -       +      -
    146B  ILE      2.8    10.0    +      -       -      +
    147B  ILE*     3.1    29.1    -      -       +      -
    148B  THR*     3.1     5.6    +      -       -      +
    238B  ALA*     5.9     0.2    -      -       -      -
----------------------------------------------------------
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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