Contacts of the strand formed by residues 149 - 160 (chain C) in PDB entry 2CX9


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 GLY 149 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145C  LYS*     3.2    10.4    +      -       -      -
    146C  VAL*     2.7    31.5    +      -       -      +
    148C  GLY*     1.3    79.1    -      -       -      +
    150C  TRP*     1.3    69.7    +      -       -      -
    224C  PHE*     3.1     8.0    -      -       -      -
    225C  VAL      3.0    14.1    -      -       -      -
    226C  PRO      3.8     0.7    -      -       -      -
    227C  GLU*     3.7    12.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 150 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143C  ALA*     3.2    29.2    -      -       +      -
    144C  GLU      3.5     3.8    -      -       -      +
    145C  LYS*     3.7    44.4    -      -       +      -
    146C  VAL*     3.3     9.1    -      -       -      +
    149C  GLY*     1.3    78.6    -      -       -      -
    151C  ARG*     1.3    60.0    +      -       -      +
    152C  LEU*     3.7    18.8    -      -       +      -
    174C  THR*     4.0    13.9    -      -       +      -
    190C  PHE*     3.5    28.7    -      +       +      -
    223C  LEU      3.3     0.9    -      -       -      +
    224C  PHE*     3.2    10.9    -      -       -      -
    225C  VAL      2.9    28.5    +      -       -      +
    226C  PRO      3.9    15.3    -      -       -      -
    227C  GLU*     3.9    14.4    +      -       -      -
    229C  ALA*     4.9     0.2    -      -       +      -
    230C  LEU*     3.7    31.2    -      -       +      +
    234C  ARG*     3.8    33.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 151 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142C  LYS      3.5     1.6    -      -       -      +
    144C  GLU*     2.8    38.5    +      -       +      +
    146C  VAL*     3.8    31.4    -      -       +      +
    150C  TRP*     1.3    74.9    -      -       -      +
    152C  LEU*     1.3    62.9    +      -       -      +
    153C  ASN*     3.1    23.5    +      -       -      +
    222C  ASP*     3.3    37.6    +      -       -      +
    223C  LEU      3.5     5.2    -      -       -      -
    224C  PHE*     3.6    27.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 152 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141C  THR*     5.3     1.1    -      -       +      -
    142C  LYS      3.1     9.2    -      -       -      +
    143C  ALA*     4.3    11.0    -      -       +      -
    150C  TRP*     3.7    24.0    -      -       +      -
    151C  ARG*     1.3    70.3    -      -       -      +
    153C  ASN*     1.3    61.9    +      -       -      +
    154C  GLY      4.2     0.4    -      -       -      -
    170C  VAL*     4.6     8.1    -      -       +      -
    172C  ALA*     5.2     3.4    -      -       +      -
    190C  PHE*     4.2    20.2    -      -       +      -
    192C  PHE*     3.8    19.7    -      -       +      -
    220C  LEU*     3.8    28.7    -      -       +      +
    223C  LEU*     2.8    37.8    +      -       +      +
    225C  VAL*     3.5    34.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 153 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140C  LYS      4.3     1.2    -      -       -      +
    141C  THR*     3.3     3.4    -      -       -      +
    142C  LYS*     2.8    42.4    +      -       +      +
    144C  GLU*     3.6    21.0    +      -       -      +
    151C  ARG*     3.1    24.2    +      -       -      +
    152C  LEU*     1.3    71.6    -      -       -      +
    154C  GLY*     1.3    58.5    +      -       -      +
    220C  LEU      3.5     4.7    -      -       -      +
    222C  ASP*     3.0    47.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 154 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140C  LYS      5.6     0.2    -      -       -      -
    141C  THR*     3.5    17.9    -      -       -      +
    153C  ASN*     1.3    74.1    -      -       -      +
    155C  THR*     1.3    61.2    +      -       -      -
    156C  LYS*     6.0     0.2    -      -       -      -
    219C  ILE*     4.6     0.3    -      -       -      +
    220C  LEU*     2.6    50.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 155 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  GLU*     3.6    14.7    -      -       -      +
    130C  PRO*     3.5    25.9    -      -       +      +
    141C  THR*     3.5     4.9    +      -       -      -
    154C  GLY*     1.3    77.4    +      -       -      -
    156C  LYS*     1.3    73.0    +      -       -      +
    217C  GLN*     3.6    24.9    -      -       +      +
    218C  LEU      2.9    20.1    +      -       -      +
    219C  ILE*     3.8    18.0    -      -       +      +
    220C  LEU*     4.9     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 156 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  GLY*     2.9    42.2    +      -       -      -
    127C  LEU      3.3    15.5    +      -       -      +
    128C  THR      3.4     9.6    -      -       -      +
    129C  GLU*     3.7     8.4    +      -       +      -
    139C  LEU*     3.3    11.1    -      -       -      +
    141C  THR*     4.0     9.4    -      -       +      -
    155C  THR*     1.3    78.6    -      -       -      +
    157C  GLN*     1.3    60.2    +      -       -      +
    159C  ILE*     3.3    19.3    -      -       +      -
    170C  VAL*     3.5    24.9    -      -       +      -
    171C  MET      3.1    17.0    +      -       -      -
    217C  GLN*     3.2    10.6    -      -       -      +
    218C  LEU*     2.6    47.7    +      -       +      -
    220C  LEU*     5.0     4.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 157 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  THR*     2.8    23.4    +      -       +      +
    129C  GLU      3.5    24.2    -      -       -      +
    130C  PRO*     3.6    20.6    -      -       +      +
    156C  LYS*     1.3    75.1    -      -       -      +
    158C  PHE*     1.3   109.3    +      -       +      +
    159C  ILE*     3.2    11.4    +      -       -      +
    205C  GLU*     5.1     5.3    +      -       -      +
    217C  GLN*     3.2    44.0    +      -       -      +
    347D  TYR*     4.3    12.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 158 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  THR*     5.0    12.4    -      -       +      -
    157C  GLN*     1.3   101.9    +      -       +      +
    159C  ILE*     1.3    62.1    +      -       -      +
    160C  THR*     3.4     6.4    +      -       -      -
    205C  GLU*     4.1    18.2    -      -       +      -
    215C  THR*     3.4    26.8    -      -       +      +
    216C  ALA      3.6     6.1    +      -       -      -
    346D  GLY*     3.5    34.8    -      -       -      -
    347D  TYR*     3.7    32.3    -      +       -      -
    350D  VAL*     3.9    29.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 159 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124C  ALA*     3.9    13.9    -      -       +      -
    125C  TRP      3.3    45.1    -      -       -      +
    126C  GLY*     3.7     7.4    -      -       -      +
    127C  LEU      4.0     2.9    -      -       -      +
    128C  THR*     3.5    19.3    -      -       -      +
    156C  LYS*     3.3    27.1    -      -       +      -
    157C  GLN      3.3    20.6    -      -       -      +
    158C  PHE*     1.3    76.7    -      -       -      +
    160C  THR*     1.3    55.6    +      -       -      +
    162C  GLY*     2.7    31.2    +      -       -      -
    215C  THR*     4.1     0.4    -      -       -      +
    216C  ALA      3.1    20.4    +      -       -      +
    218C  LEU*     3.9    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 160 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  LEU*     4.3    28.4    -      -       +      +
     88C  THR*     4.7     1.1    -      -       -      +
     91C  SER*     3.3    24.5    -      -       -      +
     95C  LEU*     5.7     4.3    -      -       -      +
    123C  GLY      3.8     0.2    -      -       -      +
    124C  ALA*     3.7    14.4    -      -       -      -
    125C  TRP      4.5     1.0    +      -       -      -
    158C  PHE      3.4     7.0    +      -       -      -
    159C  ILE*     1.3    73.2    -      -       -      +
    161C  GLN*     1.3    99.0    +      -       -      +
    213C  SER*     5.4     0.7    -      -       -      -
    214C  ASP      3.1    14.4    -      -       -      +
    215C  THR*     4.4     5.7    +      -       -      +
----------------------------------------------------------
 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