Contacts of the strand formed by residues 124 - 131 (chain C) in PDB entry 2GH0


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 ARG 124 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120C  ASP*     4.0    36.4    -      -       -      +
    122C  GLY      3.1     9.4    +      -       -      +
    123C  CYS*     1.3    77.4    -      -       -      +
    125C  LEU*     1.3    79.2    +      -       -      +
    126C  ARG*     3.5    32.3    +      -       -      +
    150C  CYS*     3.5     2.1    -      -       -      -
    151C  SER      3.1    28.1    +      -       -      +
    216C  CYS*     3.6    11.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 125 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124C  ARG*     1.3    97.0    +      -       -      +
    126C  ARG*     1.3    60.9    -      -       -      +
    148C  ARG*     3.9    28.9    -      -       +      +
    149C  PHE      3.6     3.6    -      -       -      +
    213C  ALA*     3.7    39.9    -      -       +      +
    214C  THR*     3.7    23.3    -      -       -      +
    215C  ALA*     5.0     2.7    -      -       -      -
    216C  CYS*     3.5    19.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 126 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120C  ASP      2.9    29.1    +      -       -      +
    121C  PRO      3.9     3.4    -      -       -      -
    122C  GLY      3.3     8.7    +      -       -      -
    124C  ARG*     3.5    30.7    +      -       -      +
    125C  LEU*     1.3    78.1    -      -       -      +
    127C  SER*     1.3    60.8    +      -       -      +
    148C  ARG*     3.0     8.9    -      -       -      +
    149C  PHE*     2.9    60.3    +      -       +      +
    151C  SER*     2.8    46.8    +      -       -      +
    177D  PRO*     3.9     9.6    -      -       +      +
    178D  PRO*     3.6    34.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 127 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125C  LEU*     6.2     0.2    -      -       -      -
    126C  ARG*     1.3    76.8    -      -       -      +
    128C  GLN*     1.3    63.5    +      -       -      +
    146C  ARG*     4.1    18.0    +      -       -      +
    147C  PHE      3.6     5.2    +      -       -      -
    148C  ARG*     3.7    32.2    +      -       -      +
    149C  PHE*     4.8     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 128 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127C  SER*     1.3    77.1    +      -       -      +
    129C  LEU*     1.3    75.0    +      -       +      +
    130C  VAL*     3.6     3.9    +      -       +      +
    146C  ARG*     4.3     3.1    -      -       -      -
    147C  PHE*     2.8    39.5    +      -       -      +
    149C  PHE*     4.7     4.7    -      -       +      -
    173D  ALA      3.2    22.1    +      -       -      -
    174D  LEU*     3.4    23.4    -      -       +      +
    175D  ARG*     3.0    52.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 129 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  MET*     6.2     0.2    -      -       -      -
    170A  THR*     3.7    30.3    -      -       +      +
    171A  LEU*     3.9    27.1    -      -       +      -
    128C  GLN*     1.3    85.8    +      -       +      +
    130C  VAL*     1.3    64.2    +      -       -      +
    131C  PRO*     4.8     0.9    -      -       -      +
    144C  LEU*     3.8    32.7    -      -       +      +
    145C  VAL      3.4    15.0    -      -       -      -
    146C  ARG*     3.8    14.1    -      -       +      +
    173D  ALA      5.0     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 130 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  GLN*     3.9     8.3    -      -       +      +
    129C  LEU*     1.3    79.2    -      -       -      +
    131C  PRO*     1.3    78.2    -      -       +      +
    135C  LEU*     4.2     7.9    -      -       +      -
    144C  LEU*     3.2     6.4    -      -       -      -
    145C  VAL*     2.8    44.0    +      -       +      +
    147C  PHE*     3.8    20.0    -      -       +      -
    168D  LEU*     3.9    24.2    -      -       +      -
    173D  ALA      3.8    12.6    -      -       -      +
    174D  LEU*     3.8    28.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 131 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  LEU      4.8     0.9    -      -       -      +
    130C  VAL*     1.3    92.7    -      -       +      +
    132C  VAL*     1.3    64.5    +      -       -      +
    133C  ARG*     4.0    12.8    -      -       +      +
    134C  ALA*     3.0    29.3    +      -       +      +
    135C  LEU*     3.9     2.6    +      -       -      +
    143C  GLU      3.8     2.7    -      -       -      +
    144C  LEU*     3.7    22.4    -      -       +      -
    173D  ALA*     4.5     9.6    -      -       +      +
----------------------------------------------------------
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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