Contacts of the strand formed by residues 123 - 130 (chain C) in PDB entry 3C6Q


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 123 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120C  LEU*     3.6    24.1    -      -       -      +
    121C  GLY      3.0    11.0    -      -       -      +
    122C  GLY*     1.3    79.6    -      -       -      +
    124C  GLY*     1.3    60.3    +      -       -      +
    153C  GLU*     3.5    34.7    +      -       +      +
    154C  ILE*     3.4     8.4    -      -       -      +
    184C  ASP*     4.7     2.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 124 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120C  LEU*     4.7     3.4    -      -       -      -
    123C  LYS*     1.3    78.7    -      -       -      +
    125C  LYS*     1.3    63.9    +      -       -      -
    153C  GLU      3.7     8.1    +      -       -      +
    154C  ILE*     3.4     9.9    -      -       -      +
    155C  GLU*     2.9    31.9    +      -       -      +
    184C  ASP*     3.2    11.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 125 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124C  GLY*     1.3    75.0    -      -       -      -
    126C  VAL*     1.3    62.6    +      -       -      +
    155C  GLU*     3.5    25.8    -      -       +      +
    157C  VAL*     3.8    23.3    -      -       +      -
    180C  HIS*     4.3    14.7    +      -       -      +
    182C  ASP*     3.1    41.4    +      -       -      +
    183C  LEU*     3.6    15.4    -      -       +      +
    184C  ASP*     2.5    36.1    +      -       -      +
    185C  ALA      3.5     6.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 126 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  MET*     4.2    13.9    -      -       +      -
    120C  LEU*     3.8    25.1    -      -       +      -
    125C  LYS*     1.3    79.4    -      -       -      +
    127C  VAL*     1.3    79.2    +      -       -      +
    128C  ILE*     4.5     3.4    -      -       +      +
    145C  PHE*     4.0    24.7    -      -       +      -
    154C  ILE*     4.3    12.1    -      -       +      -
    155C  GLU      3.1    11.9    +      -       -      +
    156C  ILE*     3.5     9.2    -      -       +      +
    157C  VAL*     3.0    27.8    +      -       -      +
    158C  ASP      3.7     0.3    +      -       -      -
    185C  ALA*     3.3    13.9    -      -       +      +
    186C  PHE      4.7     0.2    -      -       -      -
    187C  PHE*     4.3     9.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 127 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  VAL*     1.3    79.3    -      -       -      +
    128C  ILE*     1.3    65.4    +      -       -      +
    157C  VAL*     3.9    10.5    -      -       +      -
    158C  ASP*     3.5    16.4    -      -       +      +
    160C  LEU*     3.5    32.3    -      -       +      -
    176C  ALA*     4.0    10.8    -      -       +      +
    180C  HIS*     5.0     3.6    -      -       +      -
    183C  LEU*     3.4    34.3    -      -       +      -
    185C  ALA      3.1     4.2    +      -       -      -
    186C  PHE*     3.3    26.3    -      -       +      -
    187C  PHE      2.9    24.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 128 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  VAL*     4.6     6.3    -      -       +      -
    127C  VAL*     1.3    80.4    -      -       -      +
    129C  GLY*     1.3    65.6    +      -       -      +
    130C  THR      4.5     0.4    -      -       -      +
    142C  ILE*     4.2    29.8    -      -       +      -
    145C  PHE*     4.5     8.3    -      -       +      -
    156C  ILE*     3.7    26.7    -      -       +      -
    158C  ASP      2.7    15.9    +      -       -      +
    159C  ILE*     3.7    29.6    -      -       +      -
    160C  LEU*     2.9    28.9    +      -       -      +
    187C  PHE*     3.5    18.8    -      -       +      +
    189C  VAL*     3.7    27.6    -      -       +      -
    197C  GLN*     4.5     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 129 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  ILE*     1.3    74.1    -      -       -      +
    130C  THR*     1.3    60.8    +      -       -      -
    160C  LEU*     3.6     7.0    -      -       -      -
    187C  PHE      3.0     9.7    +      -       -      -
    189C  VAL*     2.9    28.2    +      -       -      +
    193C  ASN*     2.7    23.2    -      -       -      +
    197C  GLN*     3.6    11.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 130 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  ILE*     4.8     0.2    -      -       -      -
    129C  GLY*     1.3    76.1    -      -       -      -
    131C  GLY*     1.3    67.3    +      -       -      +
    132C  SER      3.2    20.7    +      -       -      +
    133C  LEU*     4.4     8.5    -      -       +      -
    138C  SER*     2.7    26.9    +      -       -      +
    142C  ILE*     4.4     3.6    -      -       +      -
    159C  ILE*     4.4    12.8    -      -       +      -
    160C  LEU      3.0    15.2    +      -       -      +
    161C  ASN*     3.4    10.2    -      -       +      -
    162C  ASP*     2.8    30.0    +      -       -      +
    189C  VAL*     3.9    16.7    -      -       -      +
    190C  TYR*     4.0     1.8    -      -       -      +
    193C  ASN*     3.1    10.5    -      -       -      +
----------------------------------------------------------
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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