Contacts of the strand formed by residues 188 - 196 (chain K) in PDB entry 2AAZ


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 HIS 188 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79K  GLU*     5.4     0.8    +      -       -      -
     83K  PHE*     3.8    27.4    -      +       -      -
    127K  TYR*     3.2    48.1    -      +       -      -
    131K  TRP*     4.4     5.9    +      +       -      -
    173K  ALA*     4.6     2.6    -      -       -      +
    186K  PRO*     4.3     0.2    -      -       -      +
    187K  CYS*     1.3    74.5    -      -       -      +
    189K  MET*     1.3    63.0    +      -       -      +
    190K  PHE      3.4     3.4    +      -       -      -
    213K  MET*     3.5    30.5    -      -       +      -
    214K  TYR      3.7     7.4    -      -       -      -
    215K  GLN*     4.0     3.6    -      -       +      -
    227K  ASN*     3.4     9.4    +      -       -      -
    230K  SER*     5.9     0.2    -      -       -      -
    231K  TYR*     2.6    37.2    +      +       -      +
    450K  UMP      3.0    26.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 189 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172K  SER*     2.9    15.6    +      -       -      -
    173K  ALA      3.0    11.3    +      -       -      -
    174K  TRP*     3.5    35.3    +      -       +      +
    186K  PRO*     4.2     9.6    -      -       -      +
    187K  CYS      3.0     7.8    +      -       -      +
    188K  HIS*     1.3    71.7    -      -       -      +
    190K  PHE*     1.3    68.3    +      -       +      +
    214K  TYR*     3.3    24.3    +      -       +      +
    216K  ARG*     3.7    30.1    -      -       -      -
    170L  ILE*     3.7    24.0    -      -       +      -
    172L  SER*     5.7     0.4    -      -       -      +
    190L  PHE*     3.4    40.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 190 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131K  TRP*     6.2     0.4    -      -       -      +
    170K  ILE*     4.0     2.0    -      -       +      -
    171K  LEU      3.1    15.3    -      -       -      +
    172K  SER*     3.5    14.6    -      -       -      +
    188K  HIS      3.4     3.8    +      -       -      -
    189K  MET*     1.3    88.3    -      -       +      +
    191K  CYS*     1.3    93.1    +      -       -      +
    192K  GLN*     4.3     3.6    -      -       +      -
    212K  LEU*     4.9     1.1    -      -       +      -
    213K  MET*     3.5     5.2    -      -       -      +
    214K  TYR*     3.0    45.3    +      -       +      -
    231K  TYR*     5.2     3.6    -      -       -      -
    189L  MET*     3.5    23.6    -      -       +      -
    190L  PHE*     2.9    37.2    -      +       -      -
    214L  TYR*     3.1    48.5    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 191 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169K  ILE      4.1     0.3    -      -       -      +
    170K  ILE*     3.6     3.5    -      -       -      -
    171K  LEU*     2.9    46.8    +      -       -      -
    190K  PHE*     1.3    83.9    -      -       -      +
    192K  GLN*     1.3    60.7    +      -       -      +
    193K  PHE*     3.5    33.7    -      -       -      -
    211K  CYS*     4.0     6.5    -      -       -      -
    212K  LEU      3.0    13.9    -      -       -      +
    213K  MET*     3.8    13.9    -      -       +      -
    231K  TYR*     3.7    21.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 192 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167K  ARG*     3.7    22.2    +      -       -      +
    169K  ILE      3.4     5.6    -      -       -      +
    170K  ILE*     3.4    21.8    -      -       +      +
    190K  PHE*     4.5     2.5    -      -       +      -
    191K  CYS*     1.3    73.6    -      -       -      +
    193K  PHE*     1.3    76.5    +      -       -      +
    194K  PHE*     6.1     0.6    -      -       -      -
    211K  CYS*     3.4     2.0    -      -       -      -
    212K  LEU      2.7    33.3    +      -       -      +
     49L  PHE*     3.4    20.1    -      -       +      -
    214L  TYR*     2.5    37.4    +      -       -      +
    216L  ARG*     3.1    27.1    +      -       -      +
    254L  GLY*     3.4     9.2    -      -       -      -
    255L  ASP*     4.2     7.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 193 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156K  VAL*     3.8    26.5    -      -       +      -
    160K  ILE*     4.4     2.5    -      -       +      -
    166K  ASP      5.3     0.9    -      -       -      +
    169K  ILE*     3.0    44.9    +      -       +      +
    171K  LEU*     4.3    11.0    -      -       +      -
    191K  CYS*     3.5    30.5    -      -       -      -
    192K  GLN*     1.3    85.0    +      -       -      +
    194K  PHE*     1.3    62.6    +      -       -      +
    209K  LEU*     4.1    22.4    -      -       +      -
    210K  SER      3.3    15.5    -      -       -      +
    211K  CYS*     3.8    20.4    -      -       +      -
    234K  LEU*     4.3     9.9    -      -       +      -
    235K  THR*     4.1    12.3    -      -       -      -
    238K  ILE*     3.4    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 194 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164K  PRO      5.6     0.2    -      -       -      -
    169K  ILE*     5.2     1.1    -      -       -      -
    192K  GLN*     6.1     0.7    -      -       -      -
    193K  PHE*     1.3    76.3    -      -       -      +
    195K  VAL*     1.3    72.5    +      -       -      +
    196K  SER*     3.4    23.1    -      -       -      -
    208K  LYS      3.5     1.1    -      -       -      +
    209K  LEU*     3.5     4.7    -      -       -      +
    210K  SER*     2.8    37.3    +      -       -      +
     35L  GLU*     4.4     4.0    -      -       -      -
     37L  ARG*     3.5    36.1    -      -       -      -
     47L  ALA*     5.2     4.9    -      -       +      -
     48L  LEU*     5.0     3.6    -      -       -      -
     49L  PHE*     3.4    63.0    -      +       +      -
    255L  ASP*     3.6    30.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 195 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160K  ILE*     3.8    32.5    -      -       +      +
    164K  PRO*     3.7    39.3    +      -       +      +
    169K  ILE*     4.6     2.9    -      -       +      -
    194K  PHE*     1.3    85.1    -      -       -      +
    196K  SER*     1.3    56.6    +      -       -      +
    197K  LEU*     3.7     3.9    +      -       +      +
    207K  PRO*     3.6    29.4    -      -       +      -
    208K  LYS      3.2     6.1    -      -       -      +
    209K  LEU*     4.0    11.0    -      -       +      -
    244K  THR*     4.7     6.7    -      -       +      -
     37L  ARG*     2.8    32.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 196 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194K  PHE*     3.4    19.1    -      -       -      -
    195K  VAL*     1.3    72.4    -      -       -      +
    197K  LEU*     1.3    66.2    +      -       -      +
    207K  PRO*     3.3     7.1    -      -       -      +
    208K  LYS*     2.8    52.0    +      -       -      +
    210K  SER*     5.6     1.4    +      -       -      -
    247K  HIS*     5.5     4.5    -      -       -      -
     35L  GLU*     3.5    18.2    +      -       -      -
     37L  ARG*     3.8     2.0    -      -       -      +
----------------------------------------------------------
 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