Contacts of the strand formed by residues 35 - 44 (chain B) in PDB entry 1HT0


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 GLU 35 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  PRO*     3.6     5.6    -      -       +      +
     32B  LYS*     2.8    40.7    +      -       -      +
     33B  ALA      3.7     6.9    -      -       -      +
     34B  HIS*     1.3    82.6    -      -       -      +
     36B  VAL*     1.3    69.2    +      -       -      +
     77B  GLY      2.8    25.6    +      -       -      -
     80B  VAL*     3.5     1.4    -      -       -      +
    123B  LEU*     3.6    16.1    -      -       +      +
    125B  ASP*     4.4     5.7    -      -       -      +
    129B  ARG*     3.0    36.0    +      -       -      -
    151B  VAL*     3.5     8.8    -      -       +      +
    152B  VAL      3.3    12.1    -      -       -      +
    153B  ASP*     4.2    16.0    -      -       -      +
    154B  GLU      4.2     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 36 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  PRO*     4.3     3.1    -      -       -      -
     35B  GLU*     1.3    81.5    -      -       -      +
     37B  ARG*     1.3    61.9    +      -       -      +
     38B  ILE*     3.9    17.2    +      -       +      +
     73B  VAL*     3.8    26.2    -      -       +      -
     75B  SER      3.6    11.2    -      -       -      +
     76B  VAL*     4.3     1.3    -      -       +      -
     80B  VAL*     4.3    11.4    -      -       +      -
     83B  VAL*     3.7    28.3    -      -       +      -
    150B  THR      3.9     0.2    -      -       -      +
    151B  VAL*     3.3     1.5    -      -       -      -
    152B  VAL*     2.7    38.6    +      -       -      +
    154B  GLU*     4.3    18.4    -      -       +      -
    157B  VAL*     4.2    12.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 37 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2B  THR      2.8    19.8    +      -       -      -
      4B  GLY      4.1     2.8    -      -       -      +
      5B  LYS      2.7    31.7    +      -       -      +
      7B  ILE*     3.5    20.2    -      -       -      +
     28B  VAL*     2.9    31.3    +      -       +      -
     29B  ALA      3.3     7.5    +      -       -      -
     30B  PRO*     3.4    11.3    -      -       -      +
     31B  PRO*     4.0    10.2    -      -       +      +
     36B  VAL*     1.3    72.8    -      -       -      +
     38B  ILE*     1.3    62.9    +      -       -      +
     73B  VAL*     3.7     3.1    -      -       -      -
     74B  GLU*     2.8    54.0    +      -       -      +
     75B  SER*     2.9    23.1    +      -       -      +
    149B  TYR*     4.2    11.9    -      -       +      -
    150B  THR      3.3    11.2    -      -       -      +
    151B  VAL*     3.8    19.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 38 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  VAL*     4.0    14.1    -      -       +      +
     37B  ARG*     1.3    79.6    -      -       -      +
     39B  LYS*     1.3    67.5    +      -       -      +
     40B  MET*     3.5     9.9    +      -       +      +
     71B  GLY*     3.9    10.5    -      -       -      +
     72B  ILE      3.6    24.0    -      -       -      +
     73B  VAL*     4.7     1.6    -      -       -      -
     89B  VAL*     3.9    22.0    -      -       +      -
     91B  PRO*     4.7    13.5    -      -       +      -
    149B  TYR*     3.2    11.0    -      -       -      -
    150B  THR*     2.8    39.6    +      -       +      +
    152B  VAL*     4.4    16.2    -      -       +      -
    157B  VAL*     4.1    25.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 39 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37B  ARG      4.4     0.2    +      -       -      -
     38B  ILE*     1.3    71.0    -      -       -      +
     40B  MET*     1.3    75.3    +      -       -      +
     41B  VAL*     4.0    11.1    -      -       +      +
     71B  GLY*     3.2     0.5    -      -       -      -
     72B  ILE*     2.8    45.7    +      -       +      +
     74B  GLU*     4.4     3.5    -      -       +      +
    148B  GLN*     3.5     7.6    -      -       +      +
    149B  TYR*     3.5    39.2    -      -       +      +
    374B  PHE*     5.6     6.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 40 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  ILE*     3.5    15.7    +      -       +      +
     39B  LYS*     1.3    84.1    +      -       -      +
     41B  VAL*     1.3    63.2    +      -       -      +
     42B  ALA      4.1     4.9    -      -       -      +
     69B  ALA*     3.7    23.6    -      -       +      -
     70B  ALA*     3.8    15.5    -      -       -      +
     71B  GLY*     4.4     1.8    -      -       -      -
     91B  PRO*     4.9     4.9    -      -       +      -
    145B  THR*     3.5    26.7    -      -       +      +
    147B  SER      3.4    22.2    -      -       -      +
    148B  GLN*     2.9    10.1    +      -       -      +
    150B  THR*     3.5    33.2    -      -       +      -
    374B  PHE*     3.3    35.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 41 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39B  LYS*     4.0    18.4    -      -       +      +
     40B  MET*     1.3    78.8    -      -       -      +
     42B  ALA*     1.3    63.9    +      -       +      +
     70B  ALA      2.9    11.2    +      -       -      +
     71B  GLY*     4.1     2.2    -      -       -      -
     72B  ILE*     4.2    16.2    -      -       +      -
    166B  LEU*     3.9    36.1    -      -       +      -
    167B  GLU*     5.2     2.5    -      -       +      +
    373B  THR*     3.6     6.8    -      -       -      +
    374B  PHE*     3.2    25.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 42 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  MET*     4.1     0.7    -      -       -      +
     41B  VAL*     1.3    81.6    -      -       +      +
     43B  ALA*     1.3    59.9    +      -       -      +
     69B  ALA*     3.1     5.0    -      -       -      +
     70B  ALA      3.0    31.3    +      -       -      +
    166B  LEU      3.5    27.1    -      -       -      +
    167B  GLU*     3.7    17.9    -      -       +      -
    170B  CYS*     4.0     3.4    -      -       -      -
    371B  VAL*     4.0     8.7    -      -       +      -
    372B  LEU      3.1    10.3    -      -       -      +
    373B  THR*     5.2     1.8    -      -       +      -
    374B  PHE*     3.9     3.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 43 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  ALA*     1.3    76.4    -      -       -      +
     44B  GLY*     1.3    61.9    +      -       -      +
     68B  GLU      3.2    10.8    -      -       -      +
     69B  ALA*     3.9     8.5    -      -       +      +
    145B  THR*     4.2     4.7    -      -       -      +
    146B  PHE*     4.0    25.1    -      -       +      -
    170B  CYS*     4.6     0.4    -      -       -      -
    371B  VAL*     4.3     3.6    -      -       -      +
    372B  LEU*     2.7    42.7    +      -       +      +
    374B  PHE*     3.8    17.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 44 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  ALA*     1.3    76.0    -      -       -      +
     45B  ILE*     1.3    62.9    +      -       -      -
     46B  CYS      3.8     2.3    +      -       -      -
     49B  ASP*     4.2     1.7    -      -       -      +
     68B  GLU*     2.8    43.0    +      -       -      +
    146B  PHE*     3.8    14.6    -      -       -      -
    170B  CYS*     4.3     3.8    -      -       -      -
    171B  LEU*     4.7     1.8    -      -       -      -
    369B  ARG*     5.1     0.4    -      -       -      -
    370B  THR      3.5     8.1    -      -       -      -
    371B  VAL*     4.4     9.0    -      -       -      -
----------------------------------------------------------
 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