Contacts of the strand formed by residues 121 - 129 (chain C) in PDB entry 6XHU


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 SER 121 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304A  THR*     3.5    21.6    -      -       -      +
    305A  PHE      3.9    11.4    +      -       -      -
    306A  GLN      5.7     0.3    +      -       -      -
     28C  ASN*     4.2     0.2    +      -       -      -
    117C  CYS*     3.3     4.2    -      -       -      -
    118C  TYR      3.0    32.9    +      -       -      +
    119C  ASN*     3.9     6.9    +      -       -      +
    120C  GLY*     1.3    81.5    +      -       -      +
    122C  PRO*     1.3    71.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 122 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  PRO*     3.7    21.2    -      -       +      +
    304A  THR*     4.4     0.7    -      -       -      -
    305A  PHE*     3.3    37.8    +      -       -      +
    306A  GLN      5.6     3.4    -      -       -      +
     14C  GLU*     3.9    33.2    -      -       +      +
     17C  MET*     5.2     1.8    -      -       +      -
    115C  LEU*     3.9    19.5    -      -       +      -
    116C  ALA      3.8     5.8    -      -       -      +
    117C  CYS*     3.8     6.5    -      -       -      -
    120C  GLY      4.2     4.0    -      -       -      +
    121C  SER*     1.3    87.0    -      -       -      +
    123C  SER*     1.3    59.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 123 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  MET*     4.7     9.8    -      -       -      +
      7A  ALA      4.5     0.5    -      -       -      +
      8A  PHE*     5.0     0.9    -      -       -      -
      9A  PRO*     4.1     6.4    -      -       -      +
    298A  ARG*     4.7    10.6    +      -       -      -
    299A  GLN*     6.0     1.6    -      -       -      -
    302A  GLY*     4.4     3.6    -      -       -      -
    303A  VAL      2.8    26.9    +      -       -      -
    304A  THR*     4.2     2.5    -      -       -      +
    305A  PHE*     3.5    19.1    -      -       -      -
    116C  ALA*     2.8    19.1    +      -       -      -
    118C  TYR*     3.9    27.8    -      -       -      -
    122C  PRO*     1.3    74.3    -      -       -      +
    124C  GLY*     1.3    56.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 124 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  MET*     3.5    19.5    -      -       -      -
      7A  ALA      3.1    13.5    -      -       -      -
      9A  PRO*     4.2     6.7    -      -       -      +
    114C  VAL      3.7     0.2    -      -       -      +
    115C  LEU*     3.6     8.3    -      -       -      +
    116C  ALA*     2.9    27.3    +      -       -      +
    122C  PRO      3.9     0.4    -      -       -      -
    123C  SER*     1.3    81.5    -      -       -      +
    125C  VAL*     1.3    61.6    +      -       -      -
    126C  TYR*     5.1     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 125 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  LYS      4.5     0.5    -      -       -      +
      6A  MET*     3.6     0.7    -      -       -      +
      7A  ALA*     2.9    42.9    +      -       +      +
      8A  PHE      3.8    12.8    -      -       -      +
      9A  PRO*     4.5     3.4    -      -       +      -
    125A  VAL*     3.7    25.6    -      -       +      -
      7C  ALA*     3.7    18.4    -      -       +      +
      8C  PHE      4.0    10.8    -      -       -      +
     10C  SER*     4.4    12.8    -      -       -      +
    113C  SER*     4.2     9.9    -      -       -      -
    114C  VAL      3.3    13.5    -      -       -      +
    115C  LEU*     4.4     9.9    -      -       +      -
    124C  GLY*     1.3    75.3    -      -       -      +
    126C  TYR*     1.3    66.4    +      -       -      +
    150C  PHE*     4.7     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 126 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  ARG*     3.8    33.2    -      -       +      -
      5A  LYS      4.0    17.3    -      -       -      +
      6A  MET*     3.4    33.9    -      -       +      -
      7C  ALA*     4.1     9.4    -      -       -      -
    113C  SER*     3.3     1.4    -      -       -      -
    114C  VAL*     2.8    58.2    +      -       +      +
    116C  ALA*     4.3     7.0    -      -       +      -
    125C  VAL*     1.3    79.3    -      -       -      +
    127C  GLN*     1.3    66.9    +      -       -      +
    128C  CYS*     4.1     5.8    +      -       -      -
    138C  GLY*     3.6     8.5    -      -       -      -
    139C  SER*     3.1    28.9    +      -       -      -
    140C  PHE*     3.5    25.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 127 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  ARG*     3.2    20.1    +      -       -      -
      5C  LYS*     4.1    28.1    +      -       +      +
      6C  MET      3.5    29.5    +      -       -      +
      7C  ALA*     3.7     2.0    -      -       -      +
      8C  PHE*     4.1     6.6    -      -       -      -
    111C  THR*     3.6    26.3    +      -       -      -
    112C  PHE      3.4    14.0    -      -       -      +
    113C  SER*     2.7    29.1    +      -       -      -
    126C  TYR*     1.3    77.7    -      -       -      +
    128C  CYS*     1.3    66.2    +      -       -      +
    290C  GLU      5.0     5.6    +      -       -      +
    291C  PHE*     6.4     0.9    -      -       +      -
    295C  ASP*     4.1     5.1    +      -       -      -
    298C  ARG*     4.1    17.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 128 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  ARG*     3.4    24.2    -      -       -      +
    111C  THR*     3.2     7.3    -      -       -      -
    112C  PHE*     2.9    64.3    +      -       -      +
    114C  VAL*     4.0    15.0    -      -       -      -
    126C  TYR*     4.5     6.3    -      -       +      -
    127C  GLN*     1.3    76.5    -      -       -      +
    129C  ALA*     1.3    63.7    +      -       -      +
    136C  ILE*     4.4    16.6    -      -       +      -
    137C  LYS      4.6     3.4    -      -       -      +
    290C  GLU*     3.6     9.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 129 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109C  GLY      4.7     0.9    -      -       -      +
    110C  GLN      3.4    10.3    -      -       -      +
    111C  THR*     3.9    11.7    -      -       +      -
    112C  PHE*     4.5     3.8    -      -       -      -
    128C  CYS*     1.3    76.8    -      -       -      +
    130C  MET*     1.3    69.1    +      -       -      +
    131C  ARG*     3.3    15.2    +      -       -      +
    136C  ILE*     4.0    14.6    -      -       -      +
    137C  LYS      5.0     0.7    +      -       -      -
    200C  ILE*     4.4    15.9    -      -       +      -
    289C  ASP      4.7     0.2    -      -       -      +
    290C  GLU*     3.2    31.1    +      -       +      +
----------------------------------------------------------
 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