Contacts of the strand formed by residues 143 - 151 (chain F) in PDB entry 6KTR


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 ALA 143 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132F  PRO*     3.2    25.5    -      -       -      +
    142F  ALA*     1.3    75.1    -      -       -      +
    144F  LEU*     1.3    61.3    +      -       -      +
    187F  VAL*     4.2    14.8    -      -       +      -
    188F  VAL      4.2     3.8    -      -       -      -
    189F  THR*     4.8     6.7    -      -       +      +
    120G  THR*     4.2    30.5    -      -       +      +
    122G  PHE*     3.4     8.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 144 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130F  LEU      3.5    13.0    -      -       -      +
    132F  PRO*     3.9    13.0    -      -       +      -
    143F  ALA*     1.3    74.1    -      -       -      +
    145F  GLY*     1.3    58.9    +      -       -      +
    160F  TRP*     3.7    10.5    -      -       +      -
    187F  VAL*     3.2     5.4    -      -       -      +
    188F  VAL*     2.9    50.4    +      -       +      +
    190F  VAL*     3.7    23.1    -      -       +      -
    195F  LEU*     3.9    14.8    -      -       +      -
    200F  TYR*     3.5    32.5    -      -       +      -
    217F  ALA*     3.6    26.7    -      -       +      +
    122G  PHE*     4.2     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 145 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130F  LEU*     2.8    39.9    +      -       -      +
    144F  LEU*     1.3    75.9    -      -       -      +
    146F  CYS*     1.3    61.9    +      -       -      -
    160F  TRP*     3.6     9.9    -      -       -      -
    186F  SER      3.0    14.1    -      -       -      -
    187F  VAL*     3.9     5.4    -      -       -      -
    217F  ALA*     3.6    12.6    -      -       -      +
    122G  PHE*     4.6     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 146 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127F  VAL*     4.4     8.5    -      -       +      -
    128F  PHE      3.4     7.2    -      -       -      +
    129F  PRO*     4.7     5.6    -      -       -      -
    130F  LEU*     4.0     5.9    -      -       -      +
    145F  GLY*     1.3    78.8    -      -       -      -
    147F  LEU*     1.3    59.7    +      -       -      +
    148F  VAL*     3.9     8.0    +      -       +      +
    158F  VAL*     5.5     0.4    -      -       +      -
    160F  TRP*     3.7    11.0    -      -       +      -
    185F  SER*     3.4     6.1    -      -       -      -
    186F  SER*     2.9    31.7    +      -       -      +
    202F  CYS*     2.0    54.7    -      -       +      -
    204F  VAL*     5.3     0.2    -      -       +      -
    215F  LYS*     4.3     7.4    -      -       -      -
    217F  ALA*     5.0     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 147 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126F  SER      3.4     2.3    -      -       -      +
    127F  VAL*     3.2     7.1    -      -       -      +
    128F  PHE*     2.6    64.1    +      -       +      +
    130F  LEU*     4.1    16.3    -      -       +      +
    146F  CYS*     1.3    71.9    -      -       -      +
    148F  VAL*     1.3    64.8    +      -       -      +
    149F  LYS*     4.2    17.9    -      -       +      -
    183F  SER*     5.2     2.0    -      -       -      -
    184F  LEU      3.5    17.3    -      -       -      +
    185F  SER*     3.8    12.1    -      -       -      +
    128G  GLU*     4.2     6.5    -      -       -      +
    135G  THR*     3.9    30.3    -      -       +      +
    137G  VAL*     4.3     7.9    -      -       +      -
    181G  TYR*     3.9    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 148 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125F  PRO*     3.5    25.6    -      -       +      -
    126F  SER      3.9     2.0    -      -       -      -
    127F  VAL*     4.5     2.0    -      -       +      +
    146F  CYS*     4.2    10.8    -      -       +      +
    147F  LEU*     1.3    76.0    -      -       -      +
    149F  LYS*     1.3    58.6    +      -       -      +
    151F  TYR*     3.6    15.1    -      -       +      -
    156F  VAL*     4.3     5.8    -      -       +      -
    158F  VAL*     4.4     4.7    -      -       +      -
    183F  SER*     3.4     3.6    -      -       -      -
    184F  LEU*     2.8    62.9    +      -       +      +
    186F  SER      5.5     0.4    -      -       -      +
    204F  VAL*     3.7    39.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 149 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125F  PRO*     3.4     1.4    -      -       -      +
    126F  SER*     2.9    38.0    +      -       -      +
    128F  PHE*     3.7    13.0    -      -       +      -
    147F  LEU*     4.2    17.9    -      -       +      -
    148F  VAL*     1.3    73.8    -      -       -      +
    150F  ASP*     1.3    92.1    -      -       -      +
    151F  TYR*     3.7     1.6    -      -       -      -
    177F  GLN*     5.1     3.1    -      -       -      +
    183F  SER*     3.4    17.5    -      -       -      +
    128G  GLU*     2.6    27.0    +      -       -      +
    133G  LYS*     3.3    37.5    -      -       -      +
    134G  ALA      4.7     0.2    -      -       -      +
    135G  THR*     3.4    20.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 150 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  LYS*     3.7    19.2    -      -       -      +
    124F  GLY      3.1    16.1    -      -       -      +
    126F  SER*     4.5     0.6    +      -       -      +
    149F  LYS*     1.3   104.3    -      -       -      +
    151F  TYR*     1.3    57.7    +      -       -      +
    177F  GLN*     3.1    22.2    +      -       -      +
    179F  SER*     4.2     3.5    +      -       -      -
    181F  LEU*     3.8    29.5    -      -       +      +
    182F  TYR      3.1    13.3    +      -       -      -
    183F  SER*     3.4     2.4    +      -       -      -
    133G  LYS*     4.2    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 151 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  LYS*     3.4    14.1    -      -       -      +
    125F  PRO*     3.7    29.6    -      -       +      -
    148F  VAL*     3.6    31.4    -      -       +      -
    150F  ASP*     1.3    77.4    -      -       -      +
    152F  PHE*     1.3    63.5    +      -       -      +
    153F  PRO      3.8    17.5    -      -       -      -
    154F  GLU*     3.1    26.7    +      -       +      -
    156F  VAL*     3.5    25.5    -      -       +      +
    174F  ALA*     3.2    17.3    -      -       -      +
    181F  LEU*     3.6     3.0    -      -       -      +
    182F  TYR*     2.9    56.7    +      -       +      -
    183F  SER*     4.0     1.1    -      -       -      -
    184F  LEU*     3.5    14.4    -      -       +      +
    206F  HIS*     3.9     2.7    -      -       -      +
----------------------------------------------------------
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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