Contacts of the strand formed by residues 192 - 198 (chain H) in PDB entry 4XX1


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 SER 192 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137H  LEU*     4.8     4.9    -      -       -      -
    153H  CYS      3.9     9.0    -      -       -      -
    154H  LEU*     3.6    10.0    -      -       -      +
    155H  VAL*     5.5     0.7    -      -       -      -
    178H  THR*     3.8     0.3    -      -       -      -
    179H  PHE*     2.9    32.6    +      -       -      +
    191H  HIS*     1.3    86.2    +      -       -      +
    193H  SER*     1.3    61.2    +      -       -      +
    134L  VAL*     3.9     5.0    -      -       -      +
    136L  LEU*     3.9    24.2    -      -       -      -
    178L  TYR*     2.5    34.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 193 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152H  GLY*     3.2     3.1    -      -       -      -
    153H  CYS      3.1    33.8    +      -       -      +
    155H  VAL*     6.2     0.2    -      -       -      +
    165H  VAL*     3.9    28.7    +      -       -      +
    167H  TRP*     3.3    23.4    +      -       -      -
    176H  VAL*     4.0     5.7    -      -       -      +
    177H  HIS      3.8     4.3    -      -       -      -
    178H  THR*     3.3    21.9    +      -       -      -
    192H  SER*     1.3    76.6    -      -       -      +
    194H  VAL*     1.3    63.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 194 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137H  LEU*     4.6     4.3    -      -       +      -
    150H  ALA*     5.5     6.5    -      -       +      -
    151H  LEU      3.2    18.8    -      -       -      +
    152H  GLY*     4.1     5.8    -      -       -      -
    167H  TRP*     4.6     1.6    -      -       -      -
    176H  VAL*     3.4     5.1    -      -       -      +
    177H  HIS*     2.8    43.6    +      -       +      +
    179H  PHE*     3.9    16.2    -      -       +      -
    193H  SER*     1.3    80.1    +      -       -      +
    195H  VAL*     1.3    65.9    +      -       -      +
    119L  PHE*     4.2    14.8    -      -       +      -
    136L  LEU*     3.8    23.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 195 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150H  ALA*     3.7    17.9    -      -       -      -
    151H  LEU*     3.5    15.3    +      -       +      +
    167H  TRP*     4.3    26.2    -      -       +      -
    172H  LEU*     4.7    15.9    -      -       +      -
    174H  SER      3.3    24.9    -      -       -      +
    175H  GLY      3.9     4.5    -      -       -      -
    176H  VAL*     3.6    19.7    -      -       +      +
    194H  VAL*     1.3    82.5    -      -       -      +
    196H  THR*     1.3    74.1    +      -       -      +
    197H  VAL*     3.3    17.2    +      -       +      +
    207H  TYR*     5.9     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 196 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  ASP*     5.6     1.6    +      -       -      +
     53B  LYS*     6.0     1.2    -      -       -      -
    148H  THR*     4.8     7.2    -      -       -      +
    149H  ALA      3.7     9.6    -      -       -      +
    150H  ALA*     4.7     6.3    -      -       +      -
    174H  SER      4.2     3.6    +      -       -      +
    175H  GLY*     3.5    27.5    +      -       -      +
    195H  VAL*     1.3    79.1    -      -       -      +
    197H  VAL*     1.3    63.5    +      -       -      +
    198H  PRO*     4.8     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 197 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148H  THR*     3.2     3.3    +      -       -      -
    149H  ALA*     2.7    50.4    +      -       +      +
    150H  ALA      4.8     0.4    -      -       -      +
    151H  LEU*     4.5    12.1    -      -       +      +
    172H  LEU*     5.2     4.0    -      -       +      -
    195H  VAL*     3.3    22.2    +      -       +      +
    196H  THR*     1.3    80.6    -      -       -      +
    198H  PRO*     1.3    75.2    -      -       +      +
    201H  SER*     4.9     0.2    -      -       -      -
    202H  LEU*     3.9    22.7    -      -       +      -
    207H  TYR*     4.2    31.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 198 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52B  ARG*     5.8     4.0    -      -       -      +
     54E  ASP*     5.3    13.5    -      -       +      +
     56E  SER*     6.0     1.8    -      -       -      +
    147H  GLY      4.0    11.9    -      -       -      +
    148H  THR*     4.1     2.0    -      -       -      +
    149H  ALA      4.3     0.2    -      -       -      -
    196H  THR      4.8     0.4    -      -       -      +
    197H  VAL*     1.3    98.3    -      -       +      +
    199H  SER*     1.3    64.6    +      -       -      +
    200H  SER*     3.2    15.4    +      -       -      +
    201H  SER*     3.4    24.5    +      -       -      +
    202H  LEU*     4.2     2.9    -      -       -      +
    207H  TYR*     5.5     0.4    -      -       -      +
----------------------------------------------------------
 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