Contacts of the strand formed by residues 27 - 34 (chain B) in PDB entry 1LL9


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 GLY 27 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  ILE*     5.7     0.4    -      -       -      -
     25B  ILE*     3.2     7.3    -      -       -      +
     26B  PRO*     1.3    76.7    -      -       -      +
     28B  MET*     1.3    64.7    +      -       -      +
     43B  TRP*     3.5    11.0    -      -       -      -
     45B  TYR      3.3    15.9    -      -       -      -
     54B  VAL*     3.7     5.2    -      -       -      -
     60B  PHE*     4.6     1.6    -      -       -      -
    340B  ALA*     3.4     0.2    -      -       -      -
    341B  ASN*     2.8    36.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 28 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  ILE*     3.9     9.4    -      -       +      -
     19B  LEU*     4.3     3.8    -      -       +      -
     20B  ILE*     3.8    38.6    -      -       +      -
     25B  ILE*     4.1    15.5    -      -       +      -
     27B  GLY*     1.3    76.6    -      -       -      +
     29B  ALA*     1.3    70.3    +      -       -      +
     30B  VAL*     4.3     9.4    -      -       +      -
     42B  THR*     3.4     2.4    -      -       -      -
     43B  TRP*     2.9    37.3    +      -       +      +
     54B  VAL*     3.7     7.8    -      -       -      +
     60B  PHE*     4.4     1.8    -      -       -      -
    338B  MET*     3.8    33.9    -      -       +      -
    339B  LEU      3.2    11.4    -      -       -      +
    340B  ALA*     4.2     8.7    -      -       +      -
    344B  TYR*     3.3    26.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 29 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28B  MET*     1.3    74.5    -      -       -      +
     30B  VAL*     1.3    66.8    +      -       -      +
     41B  PHE      3.3     7.2    -      -       -      +
     42B  THR*     4.4     2.5    -      -       +      -
     54B  VAL*     3.9    17.5    -      -       +      -
     55B  THR      5.0     0.7    -      -       -      +
     60B  PHE*     4.0    13.6    -      -       +      -
    227B  ILE*     3.6    33.0    -      -       +      +
    339B  LEU*     2.8    32.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 30 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  VAL*     4.8     6.7    -      -       +      -
     16B  ILE*     4.2    17.7    -      -       +      -
     28B  MET*     4.3     7.9    -      -       +      -
     29B  ALA*     1.3    79.7    -      -       -      +
     31B  ALA*     1.3    72.5    +      -       -      +
     32B  VAL*     4.2     4.9    -      -       +      -
     40B  TYR*     3.5     2.6    -      -       -      -
     41B  PHE*     2.8    45.6    +      -       +      +
     43B  TRP*     3.7    24.7    -      -       +      -
    227B  ILE*     3.8     5.0    -      -       -      +
    336B  ILE*     4.1    17.5    -      -       +      -
    337B  VAL      3.2    13.7    -      -       -      +
    338B  MET*     4.1    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 31 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30B  VAL*     1.3    75.0    -      -       -      +
     32B  VAL*     1.3    62.9    +      -       -      +
     33B  ILE*     4.4     2.8    -      -       +      +
     39B  TYR      3.2     6.5    -      -       -      +
     40B  TYR*     3.9     9.0    -      -       +      -
    227B  ILE*     3.7    21.3    -      -       +      +
    231B  ALA*     3.8    27.6    -      -       +      -
    336B  ILE*     3.3     7.3    -      -       -      +
    337B  VAL*     2.9    36.7    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 32 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  ILE*     4.3    12.1    -      -       +      -
     12B  VAL*     4.0    16.6    -      -       +      -
     30B  VAL*     4.2     8.5    -      -       +      -
     31B  ALA*     1.3    78.6    -      -       -      +
     33B  ILE*     1.3    72.7    +      -       -      +
     34B  TYR*     4.5     1.8    -      -       +      +
     37B  LYS      3.4     3.8    -      -       -      +
     38B  PRO*     3.4     0.2    -      -       -      +
     39B  TYR*     2.9    33.6    +      -       +      -
     41B  PHE*     4.0    22.2    -      -       +      -
    335B  GLY      3.4     8.3    -      -       -      +
    336B  ILE*     4.2     9.4    -      -       +      -
    356B  ILE*     4.3     9.2    -      -       +      -
    357B  LEU*     4.9     2.7    -      -       +      -
    360B  LEU*     3.8    27.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 33 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  ALA*     4.4     5.8    -      -       +      +
     32B  VAL*     1.3    79.8    -      -       -      +
     34B  TYR*     1.3    60.6    +      -       -      +
     36B  GLY*     3.6    32.5    -      -       -      +
     37B  LYS      3.2     4.7    -      -       -      +
     38B  PRO*     4.6     6.3    -      -       +      -
    231B  ALA*     4.2    19.5    -      -       +      +
    234B  VAL*     4.0    26.0    -      -       +      -
    235B  GLN*     4.1    20.6    -      -       +      -
    238B  LEU*     3.7    20.2    -      -       +      -
    333B  GLU      3.8     2.2    -      -       -      +
    334B  LEU*     3.3    12.1    -      -       -      +
    335B  GLY      2.8    42.2    +      -       -      +
    336B  ILE*     4.6     0.7    -      -       -      +
    337B  VAL*     4.9     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 34 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5B  PRO*     5.3     9.2    -      -       +      -
      7B  GLN*     3.6    20.5    +      -       -      -
      8B  ILE*     3.4    33.9    -      -       +      -
     32B  VAL*     3.7     2.8    +      -       +      -
     33B  ILE*     1.3    72.2    -      -       -      +
     35B  GLN*     1.3   112.6    +      -       +      +
     36B  GLY      3.1     0.4    -      -       -      -
     37B  LYS*     2.8    25.4    +      -       -      +
     39B  TYR*     3.8    13.2    +      +       +      -
    333B  GLU      4.1     0.4    -      -       -      -
    334B  LEU*     3.9    16.6    -      -       +      -
    360B  LEU*     3.8    33.6    +      -       +      -
----------------------------------------------------------
 Back to top of page


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