Contacts of the strand formed by residues 176 - 189 (chain B) 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 LYS 176 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127B  THR*     5.8     0.2    +      -       -      -
    128B  ASN*     4.4    10.9    +      -       -      -
    129B  GLU*     4.0    33.8    +      -       -      +
    172B  TYR*     3.3     8.4    -      -       -      -
    173B  ASP      2.9    32.4    +      -       -      +
    174B  ASP*     3.2    10.4    -      -       +      +
    175B  GLY*     1.3    92.8    +      -       -      +
    177B  ILE*     1.3    72.9    +      -       -      +
    178B  VAL*     4.0     1.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  GLU*     3.7    34.8    -      -       +      +
    136B  ALA*     4.5     7.2    -      -       +      -
    170B  PHE*     3.5    31.0    -      -       +      -
    171B  GLN      3.4     7.0    -      -       -      +
    172B  TYR*     3.7    21.8    -      -       +      +
    176B  LYS*     1.3    86.5    -      -       +      +
    178B  VAL*     1.3    63.5    +      -       -      +
    179B  GLY*     3.7    14.8    -      -       -      +
    215B  TRP*     4.2    31.9    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2B  LYS*     4.9     9.2    -      -       +      +
    171B  GLN*     2.9    45.9    +      -       +      +
    172B  TYR      4.6     0.4    -      -       -      +
    173B  ASP*     3.5    38.1    -      -       +      +
    176B  LYS      4.0     4.5    -      -       -      +
    177B  ILE*     1.3    78.0    -      -       -      +
    179B  GLY*     1.3    58.2    +      -       -      +
    214B  GLU      5.0     1.9    -      -       -      +
    215B  TRP*     4.1    12.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 179 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  PHE*     3.4     4.9    -      -       -      -
    171B  GLN*     2.6    39.4    +      -       -      -
    177B  ILE*     3.6     7.6    -      -       -      +
    178B  VAL*     1.3    85.5    -      -       -      +
    180B  ILE*     1.3    61.8    +      -       -      +
    215B  TRP*     3.7    22.0    -      -       -      -
    217B  THR*     6.0     1.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 180 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  VAL*     3.3    21.5    -      -       +      -
    169B  THR      2.9    20.9    -      -       -      +
    170B  PHE*     4.0    21.1    -      -       +      -
    171B  GLN*     3.6     8.2    +      -       -      +
    179B  GLY*     1.3    79.5    -      -       -      +
    181B  ASP*     1.3    60.1    +      -       -      +
    182B  ALA      3.8     9.0    -      -       -      +
    183B  VAL*     4.3     8.1    -      -       +      -
    211B  LEU*     4.1    28.0    -      -       +      -
    212B  PRO*     4.8     0.2    -      -       +      -
    215B  TRP*     3.0    44.7    +      -       +      +
    216B  LEU*     4.9     3.4    -      -       +      -
    217B  THR*     5.8     0.2    -      -       -      +
    220B  THR*     2.8    29.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 181 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  THR      5.6     1.6    -      -       -      +
      4B  LEU*     3.9    22.6    -      -       +      +
    169B  THR*     3.1    16.7    +      -       -      +
    171B  GLN*     2.6    37.8    +      -       +      +
    180B  ILE*     1.3    72.1    -      -       -      +
    182B  ALA*     1.3    55.0    +      -       +      +
    219B  ALA*     4.1     9.4    -      -       -      +
    220B  THR*     2.9     8.7    -      -       -      +
    221B  LYS*     2.6    43.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 182 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  THR*     4.4    15.3    -      -       +      +
    168B  VAL*     3.7     2.4    -      -       -      -
    169B  THR*     3.1    43.6    +      -       +      +
    180B  ILE*     3.8     2.5    -      -       -      +
    181B  ASP*     1.3    81.4    -      -       +      +
    183B  VAL*     1.3    65.8    +      -       -      +
    184B  VAL*     5.7     0.9    -      -       +      -
    220B  THR*     4.6     0.2    -      -       -      -
    221B  LYS*     3.2    12.6    -      -       +      +
    223B  PHE*     3.5    26.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 183 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144B  LEU*     5.4     4.0    -      -       +      -
    167B  GLN      3.6     3.4    -      -       -      +
    168B  VAL*     4.4     6.3    -      -       +      -
    180B  ILE*     4.3    12.3    -      -       +      -
    182B  ALA*     1.3    79.1    -      -       -      +
    184B  VAL*     1.3    64.8    +      -       -      +
    185B  LEU*     4.8     0.7    -      -       +      +
    207B  ILE*     3.6    25.1    -      -       +      -
    211B  LEU*     3.4    29.2    -      -       +      -
    216B  LEU*     4.8     0.7    -      -       +      -
    220B  THR*     4.4     5.4    -      -       +      -
    221B  LYS      2.7     8.1    +      -       -      +
    222B  PHE*     3.5    34.1    -      -       +      -
    223B  PHE*     2.7    35.4    +      -       -      +
    224B  ILE*     6.0     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 184 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  GLN*     3.4    30.7    -      -       +      +
    301A  ALA*     3.7    20.0    -      -       +      -
    302A  ILE*     5.8     1.3    -      -       +      +
    308A  THR*     4.7     2.5    -      -       +      -
    144B  LEU*     5.2     1.4    -      -       -      +
    166B  SER*     3.3     4.5    -      -       -      -
    167B  GLN*     2.5    60.4    +      -       +      +
    182B  ALA*     5.7     1.1    -      -       +      -
    183B  VAL*     1.3    75.1    -      -       -      +
    185B  LEU*     1.3    67.9    -      -       -      +
    186B  SER*     4.4     7.2    -      -       -      +
    223B  PHE*     3.3    35.9    -      -       +      +
    226B  PRO*     5.7     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 185 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144B  LEU*     4.2    25.8    -      -       +      -
    145B  VAL*     5.5     1.8    -      -       +      -
    148B  GLN*     5.3     4.7    -      -       +      -
    164B  ALA*     5.5     0.9    -      -       +      -
    165B  LYS      3.6     2.9    -      -       -      +
    166B  SER*     3.7    24.9    -      -       -      -
    183B  VAL*     4.8     0.6    -      -       +      +
    184B  VAL*     1.3    75.8    -      -       -      +
    186B  SER*     1.3    73.6    +      -       -      +
    187B  THR*     4.2    14.5    -      -       +      +
    202B  VAL*     4.0    24.2    -      -       +      -
    206B  ILE*     4.7    15.3    -      -       +      -
    207B  ILE*     4.1    21.1    -      -       +      -
    223B  PHE      2.8    10.9    +      -       -      +
    224B  ILE*     3.4     8.3    -      -       +      +
    225B  ASN*     3.3    20.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 186 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  GLN*     4.0    13.1    +      -       -      -
    302A  ILE*     4.1    10.2    -      -       -      +
    164B  ALA*     3.1     4.0    -      -       -      +
    165B  LYS*     2.6    47.6    +      -       -      +
    184B  VAL*     4.3     3.7    -      -       -      +
    185B  LEU*     1.3    76.3    -      -       -      +
    187B  THR*     1.3    60.1    +      -       -      +
    225B  ASN*     3.2     4.7    -      -       -      -
    226B  PRO*     4.2     9.0    -      -       -      +
    230B  PHE*     4.1     3.4    -      -       -      -
    484B  ANP      3.5    36.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  GLN*     3.2    24.3    +      -       +      -
    160B  LEU*     3.7    20.1    -      -       +      +
    163B  ASP      3.6     5.4    -      -       -      -
    164B  ALA*     3.9     7.4    -      -       -      -
    185B  LEU*     4.2    15.7    -      -       +      +
    186B  SER*     1.3    75.0    -      -       -      +
    188B  GLN*     1.3    74.4    +      -       -      +
    189B  HIS*     3.9     0.5    -      -       -      -
    198B  LEU*     4.8     5.2    -      -       +      -
    202B  VAL*     4.2    15.3    -      -       +      -
    206B  ILE*     5.5     0.4    -      -       +      -
    224B  ILE*     5.8     0.2    -      -       +      -
    225B  ASN*     2.9    39.2    +      -       -      +
    230B  PHE*     3.2     9.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 188 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77B  TYR*     3.1    25.1    +      -       -      -
     82B  MET      3.3    24.0    +      -       -      -
    160B  LEU*     3.9     2.3    -      -       -      +
    161B  ARG*     3.0    43.6    +      -       +      +
    163B  ASP*     2.8    22.8    +      -       +      +
    187B  THR*     1.3    80.8    +      -       -      +
    189B  HIS*     1.3    63.4    +      -       -      +
    230B  PHE*     3.3    25.6    -      -       +      +
    231B  VAL      3.2    20.6    +      -       -      +
    232B  ILE*     4.1     0.4    -      -       -      +
    233B  GLY*     2.9    29.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 189 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159B  TRP*     3.3    22.2    -      -       +      +
    161B  ARG*     3.5    15.9    +      -       -      +
    187B  THR*     3.9     1.1    -      -       +      -
    188B  GLN*     1.3    75.9    -      -       -      +
    190B  SER*     1.3    80.6    +      -       -      +
    191B  GLU*     5.5     0.4    -      -       -      -
    193B  ILE*     4.4    12.2    -      -       +      +
    194B  ASP      6.2     0.7    -      -       -      -
    195B  GLN*     4.4     7.8    +      -       +      -
    198B  LEU*     3.3    35.1    -      -       +      +
    225B  ASN*     3.6    12.6    +      -       -      -
    229B  ARG*     4.4     3.7    -      -       -      -
    230B  PHE      3.0    36.9    +      -       -      -
    231B  VAL*     3.3    45.7    -      -       +      +
----------------------------------------------------------
 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