Contacts of the helix formed by residues 318 - 328 (chain T) in PDB entry 4UJ3


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 CYS 318 (chain T).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308T  TRP*     4.0    22.0    -      -       +      -
    313T  THR*     4.0    17.5    -      -       +      -
    315T  ASP*     3.2    27.4    +      -       -      +
    316T  ARG      3.5     0.2    -      -       -      -
    317T  THR*     1.3    84.6    +      -       -      +
    319T  PRO*     1.3    77.5    -      -       +      +
    320T  PHE      4.1     0.4    -      -       -      -
    321T  LEU*     3.6    26.9    -      -       -      -
    322T  ASP*     3.1    19.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 319 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304T  GLU*     3.3    30.3    -      -       +      +
    307T  LEU*     5.9     7.2    -      -       +      -
    308T  TRP*     6.1     0.9    -      -       +      -
    317T  THR      3.9     0.6    -      -       -      +
    318T  CYS*     1.3    92.6    -      -       +      +
    320T  PHE*     1.3    65.2    +      -       +      +
    322T  ASP*     3.6     8.0    +      -       +      +
    323T  LYS*     3.6     9.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 320 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301T  LEU      5.6     0.7    -      -       -      -
    304T  GLU*     4.0    18.4    +      -       -      +
    305T  PHE*     3.8    43.7    -      +       +      -
    308T  TRP*     3.6    45.8    -      +       +      -
    318T  CYS      3.3     0.4    -      -       -      -
    319T  PRO*     1.3    84.4    -      -       +      +
    321T  LEU*     1.3    85.4    +      -       +      +
    323T  LYS*     3.7     4.2    +      -       -      +
    324T  ILE*     3.6    40.2    +      -       +      +
    421T  ILE*     3.6    26.9    -      -       +      -
    441T  VAL*     3.8    21.5    -      -       +      -
    445T  ARG*     6.1     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 321 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308T  TRP*     4.8     0.9    -      -       -      +
    313T  THR      3.8    10.3    -      -       -      +
    314T  MET*     3.7    26.2    -      -       +      +
    315T  ASP      3.4    20.9    -      -       -      +
    316T  ARG      4.2     1.3    -      -       -      +
    318T  CYS*     3.6    16.7    +      -       -      -
    320T  PHE*     1.3    99.5    -      -       +      +
    322T  ASP*     1.3    55.4    +      -       -      +
    324T  ILE*     3.3     2.7    +      -       +      +
    325T  TYR*     2.7    62.3    +      -       +      +
    417T  PHE*     3.9    28.3    -      -       +      -
    418T  PHE*     5.5     2.5    -      -       +      -
    421T  ILE*     4.8    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 322 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316T  ARG      3.7    14.2    +      -       -      +
    317T  THR*     4.6     6.8    -      -       -      +
    318T  CYS      3.1    21.0    +      -       -      +
    319T  PRO*     4.1     4.7    -      -       +      +
    320T  PHE      3.4     0.2    -      -       -      -
    321T  LEU*     1.3    76.2    -      -       -      +
    323T  LYS*     1.3    65.0    +      -       -      +
    325T  TYR*     3.3     4.0    +      -       -      +
    326T  GLN*     2.9    52.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 323 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300T  SER*     5.8     2.6    +      -       -      -
    301T  LEU*     3.6    28.2    -      -       +      +
    304T  GLU*     3.0    33.1    +      -       -      +
    319T  PRO      3.6     5.2    +      -       -      +
    320T  PHE      3.9     8.3    -      -       -      +
    321T  LEU      3.3     0.2    -      -       -      -
    322T  ASP*     1.3    81.6    +      -       -      +
    324T  ILE*     1.3    54.4    +      -       +      +
    326T  GLN*     3.7     2.4    -      -       -      -
    327T  GLU*     2.7    73.1    +      -       -      +
    445T  ARG*     4.0    11.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 324 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320T  PHE*     3.6    38.7    +      -       +      +
    321T  LEU*     3.3     7.7    +      -       +      +
    323T  LYS*     1.3    73.8    -      -       +      +
    325T  TYR*     1.3    61.0    +      -       -      +
    328T  ASP*     2.9    38.5    +      -       -      +
    329T  ILE*     2.9    17.2    +      -       +      -
    417T  PHE*     3.3    48.5    -      -       +      -
    441T  VAL*     4.6     0.2    -      -       +      -
    445T  ARG*     3.9    29.4    -      -       -      +
    448T  MET*     4.0    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 325 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314T  MET      5.0     1.7    +      -       -      -
    316T  ARG*     3.3    34.4    +      -       +      +
    321T  LEU*     2.7    58.7    +      -       +      +
    322T  ASP*     3.6     6.5    -      -       -      +
    324T  ILE*     1.3    73.7    -      -       +      +
    326T  GLN*     1.3    62.4    +      -       +      +
    329T  ILE*     3.4    24.4    +      -       +      -
    330T  PHE*     2.8    66.0    +      +       +      -
    345T  LEU*     5.1     2.2    -      -       +      -
    349T  GLU*     3.0    28.4    +      -       -      -
    418T  PHE*     3.0    35.9    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLN 326 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322T  ASP*     2.9    40.0    +      -       -      +
    323T  LYS*     3.8     3.6    -      -       -      +
    325T  TYR*     1.3    79.2    -      -       +      +
    327T  GLU*     1.3    64.3    +      -       +      +
    330T  PHE*     3.3    30.7    -      -       -      +
    331T  PRO*     3.4    15.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 327 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323T  LYS*     2.7    53.2    +      -       +      +
    326T  GLN*     1.3    77.9    -      -       +      +
    328T  ASP*     1.3    66.5    +      -       -      +
    331T  PRO*     3.5     2.3    -      -       -      +
    445T  ARG*     3.2    17.8    +      -       -      +
    452T  LYS*     2.9    35.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 328 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324T  ILE*     2.9    17.4    +      -       -      +
    326T  GLN      3.5     0.4    -      -       -      -
    327T  GLU*     1.3    87.2    -      -       -      +
    329T  ILE*     1.3    65.3    +      -       -      +
    331T  PRO*     3.1     6.9    -      -       -      +
    332T  CYS*     3.1    28.9    +      -       -      +
    445T  ARG*     2.7    45.5    +      -       -      +
    448T  MET*     3.6    36.9    -      -       +      +
    449T  SER*     3.7    19.2    +      -       -      -
    452T  LYS*     4.3     4.6    +      -       -      +
----------------------------------------------------------
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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