Contacts of the strand formed by residues 78 - 86 (chain D) in PDB entry 3U1K


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 THR 78 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74D  GLN*     3.2     5.7    -      -       -      +
     75D  SER      3.0    33.7    +      -       -      -
     77D  ASP*     1.3    77.8    -      -       -      +
     79D  ALA*     1.3    60.4    +      -       -      +
     80D  VAL*     4.5     2.2    -      -       +      -
    158D  ALA      3.4    10.5    -      -       -      +
    159D  VAL*     3.8     3.7    -      -       -      -
    160D  ASP*     2.9    28.1    +      -       -      -
    163D  ASN*     2.8    27.1    +      -       -      +
    165D  PRO*     4.0    21.8    -      -       +      -
    168D  LEU*     3.4    21.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 79 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377C  PHE*     3.6    34.3    -      -       +      -
     72D  VAL*     4.6     4.5    -      -       +      -
     73D  VAL      3.5     4.3    -      -       -      +
     74D  GLN*     4.0    17.9    -      -       +      +
     77D  ASP      4.0     0.6    +      -       -      +
     78D  THR*     1.3    75.6    -      -       -      +
     80D  VAL*     1.3    63.7    +      -       -      +
    156D  LEU      3.8     0.3    -      -       -      -
    157D  LEU*     3.0    31.9    +      -       +      -
    158D  ALA*     2.8    17.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 80 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71D  ALA      3.9     0.7    -      -       -      +
     72D  VAL*     3.3     3.4    -      -       -      +
     73D  VAL*     2.8    42.6    +      -       -      +
     78D  THR*     4.5     1.6    -      -       +      -
     79D  ALA*     1.3    78.6    -      -       -      +
     81D  MET*     1.3    63.6    +      -       -      +
     82D  VAL*     3.9    13.5    +      -       +      +
    154D  CYS*     4.7     2.0    -      -       +      -
    155D  ASN      3.6     6.3    -      -       -      +
    156D  LEU*     3.7    25.1    -      -       +      -
    157D  LEU*     4.5     1.8    -      -       -      -
    165D  PRO*     3.8    27.1    -      -       +      +
    168D  LEU*     3.9    15.5    -      -       +      +
    169D  ALA*     3.8    29.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 81 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432C  TYR*     3.5    38.8    -      -       +      +
    477C  LEU*     4.3    11.9    -      -       +      -
     63D  LEU*     3.6    34.8    -      -       +      -
     64D  ALA*     4.0    11.7    -      -       +      -
     70D  SER*     4.2     9.0    -      -       -      +
     71D  ALA      3.3    13.2    -      -       -      +
     72D  VAL*     4.2     4.3    -      -       +      +
     80D  VAL*     1.3    74.2    -      -       -      +
     82D  VAL*     1.3    64.7    +      -       -      +
     83D  THR*     4.2     7.0    -      -       +      -
    153D  LEU      3.9     0.3    -      -       -      +
    154D  CYS*     3.3     2.6    -      -       -      -
    155D  ASN*     2.7    55.9    +      -       +      +
    157D  LEU*     3.9    20.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 82 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70D  SER*     3.4     2.6    +      -       -      -
     71D  ALA      2.9    31.4    +      -       -      +
     80D  VAL*     3.9    16.2    -      -       +      +
     81D  MET*     1.3    81.2    -      -       -      +
     83D  THR*     1.3    66.4    +      -       -      +
    152D  VAL*     3.6    22.4    -      -       +      -
    153D  LEU      3.2     5.4    -      -       -      +
    154D  CYS*     4.0    11.9    -      -       -      -
    169D  ALA      3.6    10.3    -      -       -      +
    172D  GLY*     3.5    30.1    -      -       -      +
    173D  ALA*     3.5    26.2    -      -       +      +
    176D  ALA*     3.6     5.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 83 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432C  TYR*     3.2    54.4    -      -       +      +
     64D  ALA*     4.1     8.1    -      -       +      -
     67D  ALA*     4.1     3.1    -      -       +      -
     69D  GLY      3.2     8.7    -      -       -      +
     70D  SER*     4.1    15.0    -      -       -      +
     81D  MET*     4.2    11.0    -      -       +      -
     82D  VAL*     1.3    78.6    -      -       -      +
     84D  ALA*     1.3    60.8    +      -       -      +
     85D  VAL*     4.4     1.6    -      -       -      +
    151D  GLN      3.7     0.7    +      -       -      +
    152D  VAL*     3.2     9.2    -      -       -      +
    153D  LEU*     2.8    39.5    +      -       -      +
    176D  ALA*     4.4     2.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 84 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67D  ALA*     4.1     0.2    -      -       -      +
     68D  ASP*     3.3     8.8    +      -       -      +
     69D  GLY      2.9    32.4    +      -       -      +
     83D  THR*     1.3    74.2    -      -       -      +
     85D  VAL*     1.3    65.9    +      -       -      +
    150D  THR*     6.1     0.9    -      -       -      +
    151D  GLN      3.5     5.4    -      -       -      +
    152D  VAL*     4.5     6.5    -      -       +      -
    176D  ALA*     4.3    14.6    -      -       +      +
    177D  LEU*     4.0    24.0    -      -       +      -
    182D  ILE*     3.9    18.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 85 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432C  TYR*     4.2    23.1    -      -       +      -
    435C  ASN*     3.4    41.7    -      -       -      +
    436C  GLU      3.7    22.9    -      -       -      +
    437C  ILE*     3.6    16.6    -      -       +      +
     67D  ALA*     4.2     3.8    -      -       +      -
     68D  ASP*     3.5     4.0    -      -       -      +
     83D  THR*     5.0     0.9    -      -       -      +
     84D  ALA*     1.3    79.9    -      -       -      +
     86D  SER*     1.3    65.7    +      -       -      +
     87D  LYS*     5.0     2.5    -      -       +      +
    150D  THR*     3.0     5.8    +      -       -      -
    151D  GLN*     2.9    37.0    +      -       +      +
    153D  LEU*     6.5     0.4    -      -       +      -
    182D  ILE*     4.2     1.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 86 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435C  ASN*     5.8     0.2    +      -       -      -
     68D  ASP*     2.7    15.4    +      -       -      +
     85D  VAL*     1.3    78.5    -      -       -      +
     87D  LYS*     1.3    60.4    +      -       -      +
     88D  THR*     3.7     2.9    +      -       -      +
     89D  LYS*     4.9     0.3    +      -       -      -
    146D  TYR*     2.7    29.1    +      -       -      -
    148D  TYR*     4.1     0.5    -      -       -      +
    149D  ASP      3.4     2.6    +      -       -      -
    150D  THR*     3.0    25.3    -      -       -      +
    182D  ILE*     3.5    22.4    -      -       -      +
    271D  ARG*     2.7    27.4    +      -       -      -
----------------------------------------------------------
 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