Contacts of the strand formed by residues 89 - 101 (chain A) in PDB entry 4LDD


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 MET 89 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  ASN*     3.4     7.3    -      -       -      +
     81A  VAL*     2.9    40.8    +      -       +      +
     88A  LEU*     1.3    90.9    +      -       +      +
     90A  LYS*     1.3    63.8    +      -       -      +
     92A  ILE*     3.5    25.1    -      -       +      -
    168A  LEU      5.5     8.7    -      -       -      +
    169A  PRO*     5.9     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  ASN*     4.1    13.0    -      -       -      +
     89A  MET*     1.3    78.7    -      -       -      +
     91A  GLN*     1.3    88.7    +      -       +      +
     92A  ILE*     3.6     6.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  MET*     3.4    30.8    -      -       +      +
     79A  VAL      3.3     3.5    +      -       -      -
     80A  ASN*     2.8    31.0    +      -       -      +
     90A  LYS*     1.3    90.0    -      -       +      +
     92A  ILE*     1.3    59.8    +      -       -      +
     93A  PRO*     3.7     4.3    -      -       -      +
    177A  THR*     2.8    30.4    +      -       -      +
    178A  ALA*     5.9     1.2    -      -       -      +
    187C  PRO      4.9     2.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ALA      3.1     3.8    -      -       -      +
     78A  MET*     3.5     2.2    -      -       -      -
     79A  VAL*     2.8    50.3    +      -       +      +
     81A  VAL*     4.2    13.7    -      -       +      +
     89A  MET*     3.5    53.8    -      -       +      +
     90A  LYS      3.6     5.2    -      -       -      +
     91A  GLN*     1.3    73.7    -      -       -      +
     93A  PRO*     1.3    78.1    -      -       +      +
    163A  LEU*     4.3    11.9    -      -       +      -
    164A  PRO*     4.1    21.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  GLU*     4.6     9.4    -      -       +      +
     77A  ALA      3.4     5.6    -      -       -      +
     78A  MET*     3.4    20.4    -      -       +      -
     91A  GLN      3.7     5.8    -      -       -      +
     92A  ILE*     1.3    98.2    -      -       +      +
     94A  ILE*     1.3    60.4    +      -       -      +
     95A  TRP      4.0     1.1    +      -       -      -
    162A  VAL      4.0     6.6    -      -       -      +
    163A  LEU*     4.2     1.4    -      -       -      +
    164A  PRO*     4.4    10.5    -      -       +      +
     70C  SER*     5.7     4.5    -      -       -      -
    100C  VAL*     5.9     0.9    -      -       -      +
    186C  LEU*     4.0    31.7    -      -       +      +
    187C  PRO      3.5    23.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  LEU      3.1    17.5    -      -       -      +
     76A  GLU*     3.6     2.3    -      -       -      -
     77A  ALA*     2.7    36.4    +      -       +      +
     79A  VAL*     3.6    30.7    -      -       +      -
     92A  ILE      3.9     5.8    -      -       -      +
     93A  PRO*     1.3    75.0    -      -       -      +
     95A  TRP*     1.3    59.2    +      -       -      +
     96A  LEU*     3.2    30.1    +      -       +      +
    122A  ILE*     4.7     9.2    -      -       +      -
    133A  VAL*     4.9     4.0    -      -       +      -
    162A  VAL*     3.7    23.3    -      -       +      +
    163A  LEU*     3.6    15.5    -      -       +      -
    174A  PHE*     3.6    22.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  ILE*     3.5    42.4    -      -       +      -
     75A  LEU      4.0     1.6    -      -       -      -
     76A  GLU*     5.0     4.9    -      -       +      +
     93A  PRO      4.0     1.6    -      -       -      -
     94A  ILE*     1.3    69.0    -      -       -      +
     96A  LEU*     1.3    59.2    +      -       -      +
     97A  PRO*     3.2    29.3    -      -       +      +
    161A  PHE      5.5     1.3    -      -       -      -
    162A  VAL*     3.2    30.5    +      -       -      +
    182A  ILE*     4.0    19.1    -      -       +      -
     72C  ALA*     3.9    12.5    -      -       +      +
     74C  ILE*     3.6    26.3    -      -       +      +
     95C  TRP*     5.2     0.2    -      +       -      -
     97C  PRO*     4.8     6.8    -      -       +      +
     99C  GLY*     5.1     8.6    +      -       -      -
    100C  VAL*     3.5    29.4    -      -       +      -
    184C  GLN*     3.9    34.5    -      -       +      -
    186C  LEU*     3.8    27.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  ILE*     4.1     2.2    -      -       -      +
     75A  LEU*     2.7    52.3    +      -       +      +
     77A  ALA*     4.8     6.3    -      -       +      -
     94A  ILE*     3.6    34.8    -      -       +      +
     95A  TRP*     1.3    72.1    -      -       -      +
     97A  PRO*     1.3    59.7    -      -       -      +
     98A  LEU*     3.2    12.6    +      -       +      +
    122A  ILE*     3.8    29.2    -      -       +      -
    133A  VAL*     5.0     7.0    -      -       +      -
    135A  VAL*     4.1    16.2    -      -       +      -
    157A  PHE*     3.5    31.2    -      -       +      -
    162A  VAL*     3.7    12.8    -      -       +      -
    179A  LEU*     6.0     1.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  PHE      4.8     0.4    -      -       -      +
     74A  ILE*     3.8    22.2    -      -       +      -
     95A  TRP*     3.2    27.8    -      -       +      +
     96A  LEU*     1.3    81.3    -      -       -      +
     98A  LEU*     1.3    67.0    +      -       -      +
     99A  GLY*     3.3     2.5    -      -       -      +
    155A  GLN*     3.4    12.3    +      -       -      -
    157A  PHE*     3.5    17.4    -      -       +      -
    161A  PHE*     5.0    10.3    -      -       +      -
    162A  VAL*     4.8     4.9    -      -       +      -
     95C  TRP*     5.0     3.8    -      -       +      +
     97C  PRO*     4.3    28.0    -      -       +      -
    161C  PHE*     3.6    10.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  PHE*     2.7    33.8    +      -       +      +
     75A  LEU*     3.7    35.0    -      -       +      -
     96A  LEU*     3.2    17.4    +      -       +      +
     97A  PRO*     1.3    71.5    -      -       -      +
     99A  GLY*     1.3    57.0    +      -       -      +
    115A  ILE*     4.3    20.2    -      -       +      -
    135A  VAL*     5.1     5.4    -      -       +      -
    147A  LEU*     3.9    20.1    -      -       +      +
    148A  ARG      4.9     1.4    +      -       -      -
    149A  LEU*     3.6    33.2    -      -       +      -
    150A  LEU*     6.1     2.0    -      -       +      -
    155A  GLN*     3.1    29.5    +      -       -      +
    157A  PHE*     5.3     0.9    -      -       +      -
    181A  LEU*     4.8     0.7    -      -       +      -
    161C  PHE*     3.3     6.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  ALA*     3.4     4.9    -      -       -      +
     73A  PHE*     2.9    31.9    +      -       -      +
     97A  PRO*     3.3     4.0    -      -       -      +
     98A  LEU*     1.3    81.4    -      -       -      +
    100A  VAL*     1.3    66.0    +      -       -      -
    101A  ALA      4.3     0.2    +      -       -      -
    147A  LEU*     3.5     6.6    -      -       -      +
     95C  TRP*     5.1     7.2    +      -       -      +
    161C  PHE*     4.1    19.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  SER*     4.9     6.5    -      -       -      -
     71A  SER      3.7     5.2    -      -       -      +
     72A  ALA*     4.5     0.7    -      -       +      +
     99A  GLY*     1.3    77.4    -      -       -      +
    101A  ALA*     1.3    67.7    +      -       -      +
    146A  PRO*     3.8    13.9    -      -       -      +
    147A  LEU*     3.5    11.5    -      -       -      +
    186A  LEU*     3.8    24.9    -      -       +      -
     93C  PRO      6.0     0.7    -      -       -      +
     95C  TRP*     3.7    29.6    -      -       +      -
    160C  GLU      4.7     5.2    -      -       -      +
    161C  PHE*     3.4    23.9    +      -       -      +
    162C  VAL*     3.8    16.6    -      -       -      +
    163C  LEU      4.7     5.2    -      -       -      +
    164C  PRO*     4.9    14.6    -      -       +      -
    165C  PRO*     5.0     3.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  SER*     3.6     2.8    -      -       -      -
     71A  SER*     2.9    38.8    +      -       -      +
     73A  PHE*     3.7    25.2    -      -       +      -
    100A  VAL*     1.3    78.4    -      -       -      +
    102A  ASP*     1.3    65.2    -      -       -      +
    103A  GLN*     5.3     0.7    -      -       -      +
    111A  THR*     4.7     4.5    -      -       +      +
    145A  HIS*     4.5     9.2    -      -       +      -
    146A  PRO*     4.2    12.1    -      -       +      -
    147A  LEU*     4.2    12.3    -      -       +      -
    165C  PRO*     5.6     0.2    -      -       -      -
----------------------------------------------------------
 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