Contacts of the strand formed by residues 160 - 173 (chain A) in PDB entry 1P7L


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 160 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  GLN*     3.5    37.9    -      -       +      +
    151A  VAL*     3.6    16.8    -      -       +      -
    152A  ARG*     3.4    25.8    -      -       +      +
    157A  LEU*     3.0    33.5    +      -       +      +
    158A  PRO      3.8     6.1    -      -       -      +
    159A  TRP*     1.3   111.6    -      -       +      +
    161A  ARG*     1.3    62.4    +      -       -      +
    162A  PRO*     4.9     0.2    -      -       -      +
    187A  THR*     3.7    24.7    -      -       +      +
    188A  GLN      3.9     2.0    -      -       -      +
    202A  VAL*     5.3     0.9    -      -       +      -
    206A  ILE*     4.2     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  ASP*     3.4    44.8    +      -       -      +
     82A  MET*     3.9    26.7    -      -       +      +
    148A  GLN*     3.0    23.2    +      -       -      -
    152A  ARG*     3.5     4.8    -      -       -      -
    159A  TRP*     4.2     3.4    +      -       -      +
    160A  LEU*     1.3    76.7    +      -       -      +
    162A  PRO*     1.3    76.0    -      -       +      +
    163A  ASP      3.4     3.9    +      -       -      +
    188A  GLN*     3.0    41.5    +      -       +      +
    189A  HIS      3.5    31.7    +      -       -      -
    190A  SER*     3.7    22.5    -      -       -      +
    191A  GLU      4.9     1.2    -      -       -      +
    231A  VAL*     4.8     8.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  SER*     2.5    31.4    +      -       -      -
     13A  GLY*     3.2    12.6    +      -       -      -
     75A  ILE*     4.2     3.6    -      -       +      +
     76A  GLY*     3.9    31.2    -      -       -      +
     77A  TYR*     3.6    32.8    -      -       +      +
     82A  MET*     4.4     6.3    -      -       +      -
    152A  ARG*     3.3    28.9    +      -       -      +
    161A  ARG*     1.3    95.7    -      -       +      +
    163A  ASP*     1.3    54.0    +      -       -      +
    164A  ALA*     4.2     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  GLY      3.5     9.9    -      -       -      -
     14A  HIS*     3.5    14.6    -      -       -      +
     15A  PRO*     4.0     4.0    -      -       -      +
     77A  TYR*     3.2    16.8    +      -       -      +
    161A  ARG      3.4     2.8    -      -       -      +
    162A  PRO*     1.3    76.5    -      -       -      +
    164A  ALA*     1.3    65.3    +      -       -      +
    188A  GLN*     2.7    47.2    +      -       +      +
    230A  PHE*     3.6     3.6    -      -       -      -
    233A  GLY*     3.6     5.7    -      -       -      -
    234A  GLY*     2.8    22.3    +      -       -      +
    238A  ASP*     5.6     0.2    -      -       -      +
    384A  ANP      2.7    39.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  VAL*     3.7     0.7    -      -       -      +
     11A  SER*     2.8    36.3    +      -       -      -
     14A  HIS*     4.4     1.0    -      -       -      +
    145A  VAL*     4.4     4.3    -      -       +      -
    148A  GLN*     3.7    32.3    -      -       +      +
    163A  ASP*     1.3    83.0    +      -       -      +
    165A  LYS*     1.3    70.0    +      -       -      +
    185A  LEU*     5.5     2.2    -      -       +      -
    186A  SER      3.1    13.2    -      -       -      +
    187A  THR*     3.8     5.6    -      -       -      +
    230A  PHE*     4.8     2.7    -      -       -      -
    384A  ANP      4.6     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  GLU*     4.2     4.2    +      -       -      -
      9A  SER      3.5     5.4    -      -       -      +
     10A  VAL*     3.4    21.7    -      -       +      +
     14A  HIS*     3.6     6.5    +      -       +      -
    145A  VAL*     4.1     3.4    -      -       -      -
    164A  ALA*     1.3    79.9    -      -       -      +
    166A  SER*     1.3    59.4    +      -       -      +
    185A  LEU*     3.5     3.6    -      -       -      +
    186A  SER*     2.7    46.0    +      -       -      +
    245A  LYS*     4.9     0.4    -      -       -      +
    384A  ANP      2.9    70.7    +      -       -      +
    387A   MG      4.0     4.9    -      -       -      -
    118B  ASP*     3.1    17.8    +      -       -      -
    119B  GLN*     3.6    35.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  GLU*     3.2     3.5    -      -       -      -
      9A  SER*     2.7    40.3    +      -       -      +
    141A  ALA*     2.9    30.9    +      -       -      +
    144A  LEU*     3.8    12.1    -      -       -      +
    145A  VAL*     3.7    12.9    -      -       -      +
    165A  LYS*     1.3    74.9    -      -       -      +
    167A  GLN*     1.3    60.1    +      -       -      +
    184A  VAL      3.3     4.9    -      -       -      -
    185A  LEU*     3.7    21.5    -      -       -      -
    119B  GLN*     3.3     4.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  THR*     3.6    14.5    -      -       +      +
      7A  SER      3.5    13.5    -      -       -      +
      8A  GLU*     4.1     5.1    -      -       +      +
    166A  SER*     1.3    74.3    -      -       -      +
    168A  VAL*     1.3    68.2    +      -       -      +
    169A  THR*     5.1     2.0    -      -       +      +
    182A  ALA      4.1     0.6    -      -       -      +
    183A  VAL*     3.4     0.3    -      -       -      -
    184A  VAL*     2.5    60.5    +      -       +      +
    119B  GLN*     3.4    12.9    +      -       -      +
    120B  GLY*     2.6    34.0    +      -       -      -
    121B  LEU*     5.0     0.2    -      -       -      +
    299B  SER*     3.9     4.0    +      -       -      -
    300B  TYR      2.6    29.4    +      -       -      +
    308B  THR*     3.3    23.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  PHE      4.2     0.5    -      -       -      +
      6A  THR*     3.2     1.1    -      -       -      +
      7A  SER*     3.1    32.2    +      -       -      +
    137A  PRO      5.1     2.5    -      -       -      +
    140A  TYR      5.0     0.9    -      -       -      -
    141A  ALA*     4.4    14.6    -      -       +      +
    144A  LEU*     3.4    32.1    -      -       +      -
    167A  GLN*     1.3    79.9    -      -       -      +
    169A  THR*     1.3    67.1    +      -       -      +
    170A  PHE*     3.7    27.3    +      -       +      -
    180A  ILE*     3.3    30.3    -      -       +      -
    182A  ALA      3.7     5.6    -      -       -      +
    183A  VAL*     4.4     9.2    -      -       +      -
    211A  LEU*     5.0     4.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  LEU*     4.6     4.5    -      -       -      +
      5A  PHE      3.4     6.7    -      -       -      -
      6A  THR*     3.2    31.2    -      -       +      +
    167A  GLN*     5.1     2.7    -      -       +      -
    168A  VAL*     1.3    80.9    -      -       -      +
    170A  PHE*     1.3    63.3    +      -       -      +
    180A  ILE*     2.9    18.9    -      -       -      +
    181A  ASP*     3.1    17.2    +      -       -      +
    182A  ALA*     3.2    35.3    +      -       +      +
    299B  SER*     4.6     1.6    -      -       -      +
    308B  THR*     4.3    16.2    +      -       -      +
    309B  SER*     4.4     5.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  LEU*     3.3    16.6    -      -       -      +
      5A  PHE      3.0    22.3    +      -       -      +
    136A  ALA*     4.5     4.5    -      -       +      -
    137A  PRO*     3.3    40.2    -      -       +      -
    140A  TYR*     3.4    30.1    -      +       +      -
    168A  VAL*     3.7    20.6    -      -       +      -
    169A  THR*     1.3    80.3    -      -       -      +
    171A  GLN*     1.3    62.5    +      -       -      +
    172A  TYR*     3.7    21.1    +      -       +      -
    177A  ILE*     3.5    26.2    -      -       +      -
    179A  GLY      3.4     4.0    -      -       -      +
    180A  ILE*     4.0    16.4    -      -       +      +
    215A  TRP*     3.5    30.1    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  LYS*     5.7     4.5    -      -       +      -
      4A  LEU*     3.5    17.7    -      -       +      -
    170A  PHE*     1.3    71.3    -      -       -      +
    172A  TYR*     1.3    60.0    +      -       -      +
    177A  ILE*     3.4     7.3    -      -       -      +
    178A  VAL*     2.9    54.3    +      -       +      +
    179A  GLY*     2.7    23.3    +      -       -      +
    180A  ILE      3.7     8.1    +      -       -      +
    181A  ASP*     2.6    43.7    +      -       -      +
    215A  TRP      5.4     0.2    +      -       -      -
    217A  THR*     5.4     6.3    +      -       -      +
    219A  ALA*     5.2     8.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  ALA      3.3     3.5    -      -       -      +
      2A  LYS*     3.2     4.0    -      -       -      +
      3A  HIS*     2.8    66.9    +      +       +      +
      5A  PHE*     4.1    23.1    -      -       +      -
    129A  GLU*     2.7    40.0    +      -       -      -
    137A  PRO*     3.3    18.8    -      -       +      +
    170A  PHE*     3.7    26.9    -      -       +      -
    171A  GLN*     1.3    76.5    -      -       -      +
    173A  ASP*     1.3    59.9    +      -       -      +
    175A  GLY      3.8    16.4    -      -       -      -
    176A  LYS      3.3    16.2    -      -       -      +
    177A  ILE*     3.7    18.4    -      -       +      +
    254A  MET*     3.5    11.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  ALA      3.5    18.7    +      -       -      -
      2A  LYS*     3.0    42.2    +      -       +      +
    172A  TYR*     1.3    74.2    -      -       -      +
    174A  ASP*     1.3    90.4    +      -       -      +
    175A  GLY      2.9     4.9    -      -       -      -
    176A  LYS*     2.9    20.1    +      -       -      +
    178A  VAL*     3.5    21.6    -      -       +      +
----------------------------------------------------------
 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