Contacts of the strand formed by residues 135 - 140 (chain F) in PDB entry 1C9T


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 GLN 135 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133F  GLY      3.4     4.0    +      -       -      +
    134F  THR*     1.3    85.2    -      -       -      +
    136F  CYS*     1.3    61.8    +      -       -      +
    159F  LYS*     4.0    25.9    -      -       +      +
    160F  ALA*     3.7    19.1    -      -       -      +
    161F  PRO*     4.1     7.0    -      -       +      -
    201F  CYS*     3.9     6.6    -      -       -      +
    202F  SER*     4.6     2.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 136 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134F  THR*     3.6    12.1    -      -       -      -
    135F  GLN*     1.3    76.9    -      -       -      +
    137F  LEU*     1.3    60.2    +      -       -      +
    138F  ILE*     4.1     2.9    -      -       +      -
    158F  LEU      3.5     0.7    -      -       -      +
    159F  LYS*     3.3     9.1    -      -       -      +
    160F  ALA*     2.7    39.0    +      -       -      +
    162F  ILE*     3.7    15.9    -      -       -      -
    199F  VAL*     3.8    15.7    -      -       +      -
    200F  VAL      3.1     7.6    -      -       -      +
    201F  CYS*     2.0    47.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 137 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20F  TYR*     3.7    12.1    -      -       -      +
     26F  THR*     5.2     6.7    -      -       -      +
     27F  VAL*     5.0     6.5    -      -       +      -
     29F  TYR*     4.4    18.0    +      -       -      +
    136F  CYS*     1.3    72.1    -      -       -      +
    138F  ILE*     1.3    63.7    +      -       -      +
    139F  SER*     4.2     2.6    +      -       -      -
    157F  CYS*     3.5    42.6    -      -       +      -
    158F  LEU      3.4    15.7    -      -       -      +
    159F  LYS*     3.8    17.0    -      -       +      -
    198F  PRO*     3.6     2.6    -      -       -      +
    199F  VAL*     3.6     2.3    -      -       -      -
    200F  VAL*     2.8    38.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 138 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16F  ILE*     3.8    19.8    -      -       +      +
    136F  CYS*     4.9     2.5    -      -       +      +
    137F  LEU*     1.3    76.1    -      -       -      +
    139F  SER*     1.3    63.4    +      -       -      +
    157F  CYS*     3.5     2.3    -      -       -      -
    158F  LEU*     2.8    47.1    +      -       +      +
    160F  ALA*     3.9    25.8    -      -       +      -
    183F  ALA*     4.6     7.4    -      -       +      -
    184F  GLY*     5.7     0.7    -      -       -      -
    189F  ASP*     6.2     0.4    -      -       -      -
    190F  SER*     4.1     7.6    -      -       -      +
    198F  PRO      3.5     6.3    -      -       -      +
    199F  VAL*     3.9    17.0    -      -       +      -
    213F  VAL*     3.9    26.0    -      -       +      -
    228F  TYR*     3.3    28.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 139 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16F  ILE*     4.0     7.9    -      -       -      +
     27F  VAL*     3.5    17.2    -      -       -      +
     29F  TYR*     4.9     0.7    +      -       -      -
     30F  GLN*     2.5    35.9    +      -       -      +
    137F  LEU*     5.1     3.1    +      -       -      -
    138F  ILE*     1.3    79.5    -      -       -      +
    140F  GLY*     1.3    59.4    +      -       -      +
    155F  LEU*     4.5     3.6    -      -       -      -
    156F  LYS      3.2    14.6    -      -       -      -
    157F  CYS*     4.3     9.4    -      -       -      -
    194F  ASP*     4.5     3.3    -      -       -      +
    197F  GLY*     4.2     7.8    -      -       -      -
    198F  PRO*     3.4    21.7    +      -       -      +
    213F  VAL*     5.0     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 140 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16F  ILE*     3.8     3.9    -      -       -      +
     30F  GLN*     4.1     7.6    -      -       -      -
    139F  SER*     1.3    78.8    -      -       -      +
    141F  TRP*     1.3    59.3    +      -       -      -
    142F  GLY      3.4     0.6    +      -       -      -
    155F  LEU*     3.7    14.6    -      -       -      +
    156F  LYS*     3.1    34.3    +      -       -      +
    193F  GLY      5.5     0.4    -      -       -      -
    194F  ASP*     3.2    19.1    -      -       -      -
    197F  GLY*     6.0     0.2    -      -       -      -
----------------------------------------------------------
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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