Contacts of the strand formed by residues 113 - 117 (chain C) in PDB entry 2XTJ


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 113 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111C  ALA      4.6     2.6    +      -       -      -
    112C  PRO*     1.3    71.6    +      -       -      +
    114C  VAL*     1.3    63.9    +      -       -      +
    115C  PHE*     3.3    33.6    -      -       -      -
    134C  LEU      3.4     0.9    -      -       -      +
    135C  LEU*     4.6     0.2    -      -       -      -
    136C  ASN*     3.1    34.9    +      -       -      -
    150E  SER*     4.8     8.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 114 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112C  PRO*     3.9     9.8    +      -       +      +
    113C  SER*     1.3    72.7    -      -       -      +
    115C  PHE*     1.3    76.3    +      -       -      +
    133C  CYS*     3.6    27.6    -      -       -      -
    134C  LEU      3.3     6.3    -      -       -      +
    135C  LEU*     4.6     4.9    -      -       +      -
    193C  CYS*     4.1     2.0    -      -       -      +
    195C  VAL*     3.8    36.8    -      -       +      -
    200C  LEU*     5.7     1.1    -      -       +      -
    204C  VAL*     4.2    18.4    -      -       +      +
    206C  LYS*     3.9    40.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 115 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113C  SER*     3.3    40.8    -      -       -      -
    114C  VAL*     1.3    87.2    -      -       -      +
    116C  ILE*     1.3    61.0    +      -       -      +
    117C  PHE*     4.2    16.1    -      -       +      -
    132C  VAL      3.9     0.7    -      -       -      +
    133C  CYS*     3.5     2.9    -      -       -      -
    134C  LEU*     2.7    50.5    +      -       +      +
    136C  ASN*     4.1    13.7    -      -       +      -
    206C  LYS*     4.9     3.1    -      -       -      -
    147E  LYS      3.9     8.1    -      -       -      +
    148E  SER*     3.3    41.1    -      -       -      -
    149E  THR      4.0     3.1    -      -       -      -
    150E  SER*     3.6    32.8    -      -       -      -
    153E  THR*     5.3     4.9    -      -       -      -
    155E  ALA*     4.1    15.5    -      -       +      -
    201E  THR*     4.9     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 116 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  PHE*     1.3    74.9    -      -       -      +
    117C  PHE*     1.3    71.3    +      -       -      +
    118C  PRO*     4.0     5.9    -      -       +      +
    131C  VAL*     4.1     2.9    -      -       +      -
    132C  VAL      3.5     7.9    -      -       -      +
    133C  CYS*     4.6     0.2    -      -       -      +
    147C  TRP*     3.7    28.9    -      -       +      -
    191C  TYR      3.9    15.7    -      -       -      +
    193C  CYS*     3.8     8.5    -      -       +      -
    206C  LYS*     3.6    27.3    -      -       +      +
    207C  SER      4.1    27.6    -      -       -      +
    208C  PHE*     4.0    21.3    -      -       +      -
    145E  SER*     5.1     2.1    +      -       -      -
    147E  LYS*     3.7    31.9    +      -       +      +
    148E  SER*     5.1     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 117 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  PHE*     4.2    18.2    -      -       +      -
    116C  ILE*     1.3    79.7    -      -       -      +
    118C  PRO*     1.3    71.2    -      -       +      +
    130C  SER      4.1     0.9    -      -       -      +
    131C  VAL*     3.4     8.8    -      -       -      +
    132C  VAL*     2.8    51.8    +      -       +      +
    134C  LEU*     4.2    17.5    -      -       +      -
    142E  LEU*     3.7    45.1    -      -       +      -
    143E  ALA      3.5    27.1    -      -       -      -
    145E  SER*     5.9     0.7    -      -       -      -
    148E  SER*     4.0    13.9    -      -       -      -
    155E  ALA*     3.7    31.9    -      -       +      -
    156E  LEU*     4.6     3.8    -      -       -      -
    199E  VAL*     5.1     6.1    -      -       +      -
----------------------------------------------------------
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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