Contacts of the strand formed by residues 232 - 245 (chain o) in PDB entry 4IL6


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 232 (chain o).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52o  VAL*     3.4     5.2    -      -       -      +
     53o  LYS*     2.9    81.6    +      -       +      +
     55o  GLU*     4.7     2.4    +      -       -      +
     65o  PHE*     3.6     7.4    -      -       +      -
    218o  GLU*     4.5    10.9    -      -       -      +
    219o  GLN      3.8     4.5    -      -       -      +
    220o  LEU*     4.0    17.5    -      -       +      -
    230o  PRO      5.9     0.2    -      -       -      +
    231o  HIS*     1.3    72.9    -      -       -      +
    233o  VAL*     1.3    59.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 233 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50o  PHE*     4.6     6.3    -      -       +      -
     51o  LEU      3.4    12.1    -      -       -      +
     52o  VAL*     4.3    15.7    -      -       +      -
     65o  PHE*     3.9     3.0    -      -       -      -
    116o  ILE*     4.8     1.1    -      -       +      -
    118o  LEU*     4.0    25.6    -      -       +      -
    217o  SER      3.7     0.3    -      -       -      +
    218o  GLU*     3.3     7.4    -      -       -      +
    219o  GLN      2.7    41.2    +      -       -      +
    220o  LEU      4.5     0.2    -      -       -      -
    221o  SER*     3.8    30.7    -      -       -      +
    231o  HIS      3.9     1.1    -      -       -      +
    232o  GLU*     1.3    78.5    -      -       -      +
    234o  LYS*     1.3    64.5    +      -       -      +
    235o  ILE*     3.8    26.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 234 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49o  THR      3.9     0.9    -      -       -      +
     50o  PHE*     3.8     0.9    -      -       -      -
     51o  LEU*     2.8    51.4    +      -       +      +
     65o  PHE*     3.7    45.1    -      -       +      +
    216o  GLU*     3.4    38.2    +      -       +      +
    217o  SER      3.3     4.7    -      -       -      +
    218o  GLU*     4.1    17.4    +      -       +      +
    233o  VAL*     1.3    73.2    -      -       -      +
    235o  ILE*     1.3    62.6    +      -       -      +
    236o  GLN*     4.1    21.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 235 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47o  PRO*     3.6    30.1    -      -       +      -
     49o  THR      3.6     4.0    -      -       -      +
     50o  PHE*     3.6    26.7    -      -       +      -
    118o  LEU*     4.1     2.7    -      -       +      -
    120o  PHE*     3.7    26.0    -      -       +      -
    215o  PHE*     3.7     9.6    -      -       +      -
    216o  GLU*     3.3     4.2    -      -       -      +
    217o  SER*     2.8    48.3    +      -       -      +
    219o  GLN*     3.7    37.0    -      -       +      +
    233o  VAL*     3.8    14.8    -      -       +      +
    234o  LYS*     1.3    73.6    -      -       -      +
    236o  GLN*     1.3    64.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 236 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47o  PRO*     3.5     2.6    -      -       -      +
     48o  THR*     2.7    30.8    +      -       -      +
     49o  THR*     3.0    31.6    +      -       -      +
     51o  LEU*     3.7    28.6    -      -       +      +
    215o  PHE*     3.4    11.9    -      -       -      +
    216o  GLU*     3.2    34.2    +      -       +      +
    234o  LYS*     4.1    10.3    +      -       +      +
    235o  ILE*     1.3    78.8    -      -       -      +
    237o  GLY*     1.3    52.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 237 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46o  GLN      3.2    13.0    -      -       -      -
     48o  THR*     3.5    15.7    +      -       -      -
    214o  THR*     3.2    10.9    -      -       -      +
    215o  PHE*     2.9    33.8    +      -       -      +
    236o  GLN*     1.3    77.3    -      -       -      +
    238o  VAL*     1.3    64.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 238 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19o  CYS*     4.4     6.9    -      -       +      +
     21o  THR*     6.1     4.5    -      -       +      -
     46o  GLN*     2.9    63.4    +      -       +      +
     48o  THR*     5.0     8.7    -      -       +      -
    213o  GLY      3.2    11.2    -      -       -      +
    214o  THR*     4.4    12.3    -      -       +      -
    215o  PHE*     3.4     7.9    -      -       -      -
    237o  GLY*     1.3    79.2    -      -       -      +
    239o  PHE*     1.3    63.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 239 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19o  CYS*     4.8     4.3    -      -       -      -
     20o  PRO      4.9     0.7    -      -       -      +
     43o  LEU*     4.2     6.3    -      -       +      -
     44o  CYS      3.1    14.8    -      -       -      +
     45o  LEU*     4.3    11.9    -      -       +      -
    142o  PHE*     5.7     2.0    -      +       -      -
    199o  LEU*     3.8    36.3    -      -       +      -
    200o  ASN      3.5    16.6    -      -       -      -
    201o  VAL*     4.2    17.0    -      -       +      -
    211o  ILE*     4.1    25.1    -      -       +      -
    212o  ALA*     3.3    11.9    -      -       -      +
    213o  GLY      2.7    60.1    +      -       -      +
    214o  THR      3.4    25.1    -      -       -      -
    215o  PHE*     4.4     2.2    -      -       +      -
    238o  VAL*     1.3    77.3    -      -       -      +
    240o  TYR*     1.3    70.7    +      -       -      +
    241o  ALA*     4.6     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 240 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19o  CYS*     4.2     4.0    -      -       +      -
     20o  PRO*     3.3    61.2    -      -       +      +
     21o  THR      5.2     0.2    -      -       -      -
     22o  LEU*     4.5    12.8    -      -       +      -
     42o  ARG*     4.1    28.3    -      -       -      -
     43o  LEU*     3.4     4.3    -      -       -      +
     44o  CYS*     2.8    34.4    +      -       +      +
    210o  GLU*     2.7    49.7    +      -       +      +
    211o  ILE      3.4    11.4    -      -       -      -
    212o  ALA*     4.4     0.9    -      -       +      +
    239o  PHE*     1.3    77.3    -      -       -      +
    241o  ALA*     1.3    65.2    +      -       -      +
    242o  SER*     3.6    22.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 241 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40o  ILE*     4.4    17.9    -      -       +      -
     42o  ARG      3.1     8.5    -      -       -      +
     43o  LEU*     4.0    15.5    -      -       +      -
    209o  GLY      3.9     0.3    -      -       -      +
    210o  GLU*     3.4     2.9    -      -       -      +
    211o  ILE*     2.7    65.3    +      -       +      +
    239o  PHE*     4.6     2.9    -      -       +      -
    240o  TYR*     1.3    81.3    -      -       -      +
    242o  SER*     1.3    60.0    +      -       -      +
    243o  ILE*     5.3     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 242 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40o  ILE*     3.6     3.9    -      -       -      -
     41o  ALA*     2.9    32.3    +      -       -      +
     42o  ARG*     3.0    26.4    +      -       -      +
    208o  THR      5.9     0.9    -      -       -      -
    209o  GLY      3.5     4.3    -      -       -      -
    210o  GLU*     4.2     8.3    -      -       -      +
    240o  TYR*     3.6    22.8    -      -       -      -
    241o  ALA*     1.3    73.7    -      -       -      +
    243o  ILE*     1.3    61.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 243 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30o  TYR*     3.9    31.7    +      -       +      -
     38o  TYR*     4.0    13.9    -      -       +      -
     39o  ARG      3.4    10.5    -      -       -      +
     40o  ILE*     4.1    19.1    -      -       +      -
     85o  LEU*     3.8    21.1    -      -       +      -
    136o  ILE*     3.6    28.7    -      -       +      -
    142o  PHE*     5.8     1.3    -      -       +      -
    208o  THR      4.2     4.9    -      -       -      +
    209o  GLY*     2.7    30.1    +      -       -      +
    211o  ILE*     4.1    30.1    -      -       +      -
    241o  ALA*     5.1     0.7    -      -       +      +
    242o  SER*     1.3    75.8    -      -       -      +
    244o  GLU*     1.3    64.8    +      -       -      +
    245o  PRO*     4.3     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 244 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38o  TYR*     3.7     3.9    -      -       -      -
     39o  ARG*     3.0    46.8    +      -       +      +
     41o  ALA*     3.6    28.5    -      -       +      +
    242o  SER      4.0     0.4    +      -       -      -
    243o  ILE*     1.3    75.2    -      -       -      +
    245o  PRO*     1.3    72.5    -      -       +      +
    246o  ALA*     3.1     5.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 245 (chain o). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30o  TYR*     3.4    20.4    -      -       -      +
     36o  GLN*     3.4    32.6    +      -       -      +
     37o  THR      3.5     6.5    -      -       -      +
     38o  TYR*     3.8    13.0    -      -       +      -
    243o  ILE      4.3     0.7    -      -       -      +
    244o  GLU*     1.3    84.0    -      -       +      +
    246o  ALA*     1.3    68.3    +      -       -      +
----------------------------------------------------------
 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