Contacts of the strand formed by residues 177 - 190 (chain A) in PDB entry 1O9T


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 LEU 177 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165A  MET*     3.1    49.1    -      -       +      +
    168A  LEU*     4.4     1.6    -      -       +      -
    169A  ARG*     3.2    24.6    -      -       +      +
    174A  LEU*     3.3    37.6    +      -       +      +
    175A  PRO      4.4     4.5    -      -       -      +
    176A  TRP*     1.3   109.9    -      -       +      +
    178A  ARG*     1.3    64.2    +      -       -      +
    179A  PRO*     4.7     0.2    -      -       -      +
    208A  VAL*     3.5    32.8    -      -       +      -
    209A  GLN      4.1     0.7    -      -       -      +
    211A  ASN*     5.2     0.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  ALA*     3.6    30.1    +      -       -      +
     98A  LYS*     3.5    30.5    -      -       +      +
    169A  ARG*     3.8     5.4    +      -       -      -
    177A  LEU*     1.3    77.3    -      -       -      +
    179A  PRO*     1.3    76.8    -      -       +      +
    180A  ASP      3.4     1.9    +      -       -      +
    181A  SER*     5.2     0.2    -      -       -      -
    208A  VAL*     3.6    18.5    -      -       -      +
    209A  GLN*     3.1    40.1    +      -       +      +
    210A  HIS*     3.1    21.9    +      -       -      -
    211A  ASN*     2.7    34.2    +      -       -      +
    212A  GLU*     4.8     3.8    -      -       -      +
    252A  VAL*     2.7    40.6    +      -       -      +
    253A  ILE*     3.8     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  GLY*     4.1     2.3    -      -       -      -
     28A  GLU      3.9     6.9    +      -       -      -
     29A  GLY*     3.1    14.6    +      -       -      +
     91A  ILE*     3.3    41.1    -      -       +      +
     92A  GLY*     3.7    22.4    -      -       -      +
     93A  TYR*     3.7    22.4    -      -       +      -
     98A  LYS*     5.0     3.4    -      -       +      -
    169A  ARG*     3.7    21.6    +      -       -      +
    178A  ARG*     1.3    94.1    -      -       +      +
    180A  ASP*     1.3    60.4    +      -       -      +
    181A  SER*     3.5     4.2    +      -       -      -
    209A  GLN*     4.1     3.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  GLY*     3.7    14.4    -      -       -      +
     30A  HIS*     3.2    21.5    -      -       -      +
     31A  PRO*     4.1     1.4    -      -       -      +
     93A  TYR*     3.6     9.3    +      -       -      +
    178A  ARG      3.8     1.3    -      -       -      +
    179A  PRO*     1.3    76.4    -      -       -      +
    181A  SER*     1.3    69.4    +      -       -      +
    208A  VAL*     3.6     0.2    -      -       -      -
    209A  GLN*     2.7    53.8    +      -       -      +
    251A  PHE*     3.1    25.3    -      -       +      -
    255A  GLY      3.5    16.6    -      -       -      +
   1397A  MET*     3.3    17.5    +      -       -      +
   1400A   MG      3.9     2.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  VAL*     3.3     8.1    -      -       -      +
     27A  GLY*     2.8    34.0    +      -       -      +
     30A  HIS*     4.5     0.7    -      -       -      +
    162A  ASN*     2.7    28.4    +      -       -      +
    165A  MET*     4.7     7.4    -      -       -      +
    179A  PRO      3.5     3.9    +      -       -      -
    180A  ASP*     1.3    84.1    +      -       -      +
    182A  LYS*     1.3    60.0    +      -       -      +
    207A  SER      3.1    14.1    -      -       -      -
    208A  VAL*     3.9    16.4    -      -       -      -
    251A  PHE*     4.9     3.4    -      -       -      -
   1397A  MET      5.8     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLU*     3.3    24.7    +      -       -      +
     25A  SER      3.4     9.6    -      -       -      +
     26A  VAL*     4.3    10.5    -      -       +      +
     30A  HIS*     5.5     0.2    -      -       +      -
    162A  ASN*     4.6     0.2    +      -       -      -
    181A  SER*     1.3    74.8    -      -       -      +
    183A  THR*     1.3    72.9    +      -       -      +
    184A  GLN*     3.5    22.3    -      -       -      +
    205A  VAL*     4.1     0.7    -      -       -      +
    206A  ILE*     3.5     2.4    -      -       -      +
    207A  SER*     2.8    40.8    +      -       -      +
    251A  PHE*     5.7     0.9    -      -       +      -
   1397A  MET*     5.3     6.1    -      -       -      +
   1398A  PO4      3.5    25.8    +      -       -      +
   1401A   MG      4.3     2.2    -      -       -      -
    135B  ASP*     4.9     3.0    -      -       -      +
   1397B  ATP      3.0    53.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLU*     2.9     8.2    -      -       -      +
     25A  SER      2.6    35.9    +      -       -      -
    158A  ALA*     3.5    24.5    -      -       -      +
    161A  LEU*     3.4    35.6    -      -       +      +
    162A  ASN*     3.0    34.3    +      -       -      -
    182A  LYS*     1.3    77.1    +      -       -      +
    184A  GLN*     1.3    68.4    +      -       -      +
    185A  VAL*     4.1     2.7    -      -       +      -
    205A  VAL      3.5     6.7    -      -       -      +
    206A  ILE*     4.4     8.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  THR*     4.6    10.8    -      -       +      -
     23A  SER      3.2     7.6    -      -       -      +
     24A  GLU*     3.5    20.1    +      -       +      +
    182A  LYS*     3.5    31.8    -      -       -      +
    183A  THR*     1.3    81.0    -      -       -      +
    185A  VAL*     1.3    65.5    +      -       -      +
    186A  THR*     4.3     1.7    -      -       +      +
    203A  THR      4.2     0.7    -      -       -      +
    204A  ILE*     3.6     4.3    -      -       -      +
    205A  VAL*     2.8    49.4    +      -       +      +
   1398A  PO4      4.2     7.4    +      -       -      +
    135B  ASP*     5.1     1.4    -      -       -      +
    136B  GLN*     2.9    47.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  THR*     4.1     0.7    -      -       -      -
     23A  SER      2.9    18.3    +      -       -      +
    154A  THR*     2.7    42.5    +      -       -      +
    157A  LEU*     4.1    21.3    -      -       +      -
    158A  ALA*     3.8    26.5    -      -       -      +
    161A  LEU*     4.3     9.4    -      -       +      -
    183A  THR*     4.1     7.4    -      -       +      -
    184A  GLN*     1.3    80.0    -      -       -      +
    186A  THR*     1.3    61.4    +      -       -      +
    187A  VAL*     3.9    22.7    -      -       +      -
    201A  VAL*     4.4    11.7    -      -       +      -
    203A  THR      3.9     3.1    -      -       -      -
    204A  ILE*     4.7     7.0    -      -       +      -
    232A  VAL*     6.5     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  MET*     4.3    15.4    -      -       -      -
     21A  PHE      3.0     6.8    +      -       -      -
     22A  THR*     3.0    27.1    +      -       +      +
    184A  GLN      5.2     1.6    -      -       -      +
    185A  VAL*     1.3    74.9    -      -       -      +
    187A  VAL*     1.3    62.2    +      -       -      +
    201A  VAL*     3.7     2.4    -      -       -      +
    202A  HIS*     2.9    33.8    +      -       -      +
    203A  THR*     3.1    46.8    +      -       +      +
    205A  VAL*     6.2     0.4    -      -       +      -
    136B  GLN*     3.7    15.7    -      -       +      +
    329B  LEU*     5.6     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  MET*     3.6     1.9    -      -       -      -
     21A  PHE      2.9    29.7    +      -       -      +
    153A  LEU*     4.2    15.0    -      -       +      -
    154A  THR*     4.5    10.5    +      -       -      -
    185A  VAL*     3.9    20.4    -      -       +      -
    186A  THR*     1.3    76.8    -      -       -      +
    188A  GLN*     1.3    73.6    +      -       -      +
    189A  TYR*     3.2    27.9    -      -       +      +
    198A  PRO*     4.0    17.9    -      -       +      -
    200A  ARG      3.1    16.4    -      -       -      +
    201A  VAL*     4.0    16.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  PHE      4.0     4.5    -      -       -      +
     20A  MET*     4.2    16.5    -      -       +      +
    187A  VAL*     1.3    74.7    -      -       -      +
    189A  TYR*     1.3    62.0    +      -       -      +
    199A  VAL*     2.8    32.7    +      -       +      +
    200A  ARG*     2.6    52.8    +      -       +      +
    202A  HIS*     3.5    31.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  ALA*     3.3    14.4    -      -       -      +
     19A  PHE*     2.8    46.8    +      +       +      +
     21A  PHE*     4.1     5.8    -      -       +      -
    146A  GLU*     2.9    29.0    +      -       -      -
    153A  LEU*     3.6     2.8    +      -       -      +
    154A  THR*     3.5    18.2    +      -       -      -
    187A  VAL*     3.2    34.5    -      -       +      +
    188A  GLN*     1.3    76.8    -      -       -      +
    190A  VAL*     1.3    72.2    +      -       -      +
    196A  VAL*     3.3    28.0    -      -       +      -
    197A  ILE      3.6     6.1    -      -       -      +
    198A  PRO*     3.6    24.2    -      -       +      -
    199A  VAL*     4.0     3.0    -      -       -      +
    275A  TRP*     3.2    26.5    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  GLY      3.9     7.6    -      -       -      +
     18A  ALA*     3.8    25.1    -      -       +      +
    189A  TYR*     1.3    86.6    -      -       -      +
    191A  GLN*     1.3    79.4    +      -       -      +
    196A  VAL*     4.9     0.9    -      -       -      -
    197A  ILE*     3.1    34.1    +      -       +      +
    199A  VAL*     4.0    18.6    -      -       +      -
----------------------------------------------------------
 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