Contacts of the strand formed by residues 122 - 132 (chain A) in PDB entry 1BY7


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 122 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  LEU*     1.3    60.4    +      -       -      +
    124A  GLU*     4.0    20.6    -      -       -      +
    203A  TYR*     4.2    22.2    -      -       +      +
    204A  PHE*     3.1    14.5    -      -       -      -
    205A  LYS*     2.8    63.9    +      -       +      +
    206A  GLY*     4.6     3.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 123 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  TRP*     4.2    31.6    -      -       +      -
    114A  ILE*     4.2    22.0    -      -       +      +
    115A  ASN*     4.2    14.8    -      -       -      +
    122A  LEU*     1.3    73.3    -      -       -      +
    124A  GLU*     1.3    65.1    +      -       -      +
    125A  SER*     4.2     0.7    +      -       -      -
    202A  VAL*     4.6     2.0    -      -       +      -
    203A  TYR      3.5     1.8    -      -       -      +
    204A  PHE*     3.9    12.3    -      -       +      -
    407A  LEU*     4.3    14.1    -      -       +      -
    408A  PHE*     3.6    37.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 124 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  LEU*     4.0    26.9    -      -       -      +
    123A  LEU*     1.3    78.6    -      -       -      +
    125A  SER*     1.3    60.3    +      -       -      +
    126A  VAL*     5.5     5.4    -      -       +      -
    178A  LYS*     4.7    19.1    +      -       -      +
    180A  LYS*     4.1    17.8    +      -       -      -
    201A  ALA      4.6     0.4    -      -       -      -
    202A  VAL*     3.1     7.6    -      -       -      +
    203A  TYR*     2.6    56.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 125 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  TRP*     4.4    18.6    -      -       -      -
     34A  SER*     3.9     8.0    -      -       -      -
    123A  LEU      4.2     1.0    +      -       -      -
    124A  GLU*     1.3    75.7    -      -       -      +
    126A  VAL*     1.3    67.7    +      -       -      +
    127A  ASN*     5.2     6.7    +      -       -      -
    200A  ASN*     3.6     8.1    +      -       -      -
    201A  ALA      3.6     4.0    -      -       -      -
    202A  VAL*     3.3    24.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  GLU*     5.5     4.0    -      -       +      -
    125A  SER*     1.3    80.9    +      -       -      +
    127A  ASN*     1.3    62.3    +      -       -      +
    172A  TRP*     4.2    17.9    -      -       +      -
    173A  VAL*     5.6     2.5    -      -       +      +
    176A  GLN*     3.6    38.6    -      -       +      +
    177A  THR*     4.1    14.4    -      -       +      -
    199A  VAL*     4.6     0.3    -      -       -      +
    200A  ASN*     3.3     5.2    -      -       -      +
    201A  ALA*     3.0    54.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  THR*     3.5    34.6    -      -       +      +
     41A  MET*     4.7     6.9    -      -       -      +
    125A  SER*     5.2     6.7    +      -       -      -
    126A  VAL*     1.3    79.4    -      -       -      +
    128A  LYS*     1.3    68.2    +      -       -      +
    149A  TYR*     5.0     5.7    +      -       -      +
    151A  SER*     2.7    38.3    +      -       -      -
    172A  TRP*     3.4    13.2    -      -       -      -
    198A  LEU*     5.0     1.2    -      -       +      +
    199A  VAL      3.3    10.8    -      -       -      +
    200A  ASN*     4.1     3.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  ASN*     1.3    81.4    +      -       -      +
    129A  LEU*     1.3    65.9    +      -       -      +
    130A  PHE*     3.5    37.6    -      -       +      -
    151A  SER*     4.7     2.7    -      -       -      -
    152A  GLU*     2.6    46.1    +      -       -      +
    154A  GLN*     4.0    18.6    +      -       +      +
    172A  TRP*     3.5    46.2    -      -       +      +
    198A  LEU*     3.6     5.7    -      -       -      +
    199A  VAL*     2.9    37.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 129 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  MET*     4.0    21.4    -      -       +      +
     42A  VAL*     4.2    18.8    -      -       +      -
    128A  LYS*     1.3    74.3    -      -       -      +
    130A  PHE*     1.3    60.5    +      -       -      +
    131A  GLY      4.1     0.2    +      -       -      -
    137A  PHE*     3.9    23.1    -      -       +      -
    141A  TYR*     3.7    27.1    -      -       +      +
    151A  SER*     5.1     1.2    +      -       -      -
    152A  GLU      5.1     0.2    +      -       -      -
    153A  PRO*     3.2    12.9    -      -       +      +
    154A  GLN      2.9    25.8    +      -       -      -
    196A  MET*     3.7    28.7    -      -       +      -
    197A  VAL      3.7    13.2    -      -       -      +
    198A  LEU*     4.2     7.9    -      -       +      +
    343A  MET*     3.9    13.7    -      -       +      -
    351A  LEU*     4.8     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 130 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  LYS*     3.5    39.7    -      -       +      -
    129A  LEU*     1.3    74.1    -      -       -      +
    131A  GLY*     1.3    58.5    +      -       -      +
    137A  PHE*     4.4     2.5    -      -       -      -
    154A  GLN*     3.2    44.9    -      -       +      +
    156A  VAL*     4.0    10.3    -      -       +      -
    158A  PHE*     3.9     7.8    -      -       +      -
    168A  LYS      5.1     0.7    -      -       -      -
    169A  ILE*     3.6    58.1    -      -       +      -
    172A  TRP*     4.3    13.9    -      +       +      -
    196A  MET*     3.3     4.8    -      -       -      +
    197A  VAL*     3.0    46.6    +      -       +      +
    199A  VAL*     3.9    10.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130A  PHE*     1.3    75.9    -      -       -      +
    132A  GLU*     1.3    63.7    +      -       -      -
    133A  LYS      3.2     0.2    +      -       -      -
    135A  ALA      5.8     0.7    -      -       -      -
    137A  PHE*     3.7    22.0    -      -       -      -
    154A  GLN      3.0     9.1    +      -       -      -
    155A  ALA*     3.3     6.2    -      -       -      -
    156A  VAL*     2.8    27.9    +      -       -      +
    158A  PHE*     4.1     3.1    -      -       -      -
    195A  ARG      3.5     7.6    -      -       -      -
    196A  MET*     4.3     2.9    -      -       -      -
    349A  LEU*     5.3     2.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  GLY*     1.3    73.3    -      -       -      -
    133A  LYS*     1.3    62.6    +      -       -      +
    134A  SER*     2.4    40.3    +      -       -      +
    135A  ALA*     3.0    32.9    +      -       +      +
    136A  SER*     5.0     0.2    -      -       -      -
    156A  VAL      3.4     3.9    -      -       -      +
    157A  ASP*     3.8     2.6    -      -       -      +
    158A  PHE*     2.8    44.2    +      -       +      -
    159A  LEU*     3.0    25.8    +      -       -      +
    195A  ARG*     2.9    45.2    +      -       -      +
    346A  ARG*     4.1     2.5    -      -       -      +
    349A  LEU*     5.3     0.6    -      -       -      +
----------------------------------------------------------
 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