Contacts of the helix formed by residues 436 - 450 (chain R) in PDB entry 1UW9


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 ASP 436 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392R  GLU*     5.8     0.5    -      -       -      +
    434R  GLY      3.7     1.9    +      -       -      +
    435R  ARG*     1.3    70.9    -      -       -      +
    437R  LEU*     1.3    54.0    +      -       -      +
    438R  ALA*     3.0    22.3    +      -       -      +
    439R  ARG*     3.1    36.5    +      -       +      -
    440R  GLU*     2.7    49.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 437 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388R  PRO*     3.8    32.8    -      -       +      +
    389R  ALA      5.2     0.2    +      -       -      -
    391R  VAL*     3.6    32.1    -      -       +      -
    392R  GLU*     4.2    14.3    -      -       +      +
    427R  CYS*     3.7    41.5    -      -       +      +
    430R  ALA*     4.4    13.0    -      -       +      -
    431R  ARG*     3.9    20.6    -      -       +      +
    435R  ARG*     3.5     3.8    +      -       +      +
    436R  ASP*     1.3    73.8    +      -       -      +
    438R  ALA*     1.3    62.8    +      -       -      +
    440R  GLU      4.9     0.2    -      -       -      -
    441R  GLY*     3.1    23.4    +      -       -      +
    444R  VAL*     4.5     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 438 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389R  ALA*     6.4     1.8    -      -       -      +
    392R  GLU*     4.6    20.4    -      -       +      +
    436R  ASP*     3.0    12.1    +      -       -      +
    437R  LEU*     1.3    79.2    -      -       -      +
    439R  ARG*     1.3    71.6    +      -       -      +
    441R  GLY      5.0     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 439 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436R  ASP*     3.1    35.4    +      -       +      +
    438R  ALA*     1.3    88.1    -      -       -      +
    440R  GLU*     1.3    66.9    +      -       +      +
    441R  GLY      3.4     2.6    +      -       -      -
    442R  GLY      4.9     1.7    +      -       -      -
    443R  ASP*     5.3     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 440 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435R  ARG*     3.0    44.1    +      -       +      +
    436R  ASP*     2.7    42.0    +      -       -      +
    437R  LEU*     4.9     0.2    -      -       -      -
    439R  ARG*     1.3    79.1    -      -       +      +
    441R  GLY*     1.3    63.3    +      -       -      +
    442R  GLY      3.3     2.7    -      -       -      -
    443R  ASP*     3.0    17.1    +      -       +      +
    444R  VAL*     2.9    26.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 441 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388R  PRO*     3.6    24.1    -      -       -      +
    437R  LEU*     3.1    23.7    +      -       -      -
    439R  ARG      3.4     2.2    -      -       -      -
    440R  GLU*     1.3    76.9    -      -       -      +
    442R  GLY*     1.3    60.7    +      -       -      +
    444R  VAL*     3.2     9.8    +      -       -      +
    445R  ILE*     3.0    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 442 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385R  TRP*     4.0    12.6    -      -       -      -
    439R  ARG      4.9     2.2    +      -       -      -
    440R  GLU      3.3     0.6    -      -       -      -
    441R  GLY*     1.3    72.8    -      -       -      +
    443R  ASP*     1.3    56.2    +      -       -      +
    445R  ILE*     3.5     4.0    +      -       -      +
    446R  ARG*     3.0    53.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 443 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435R  ARG*     4.3    13.7    -      -       -      +
    439R  ARG      5.3     1.6    -      -       -      +
    440R  GLU*     3.0    19.8    +      -       -      +
    442R  GLY*     1.3    72.9    -      -       -      +
    444R  VAL*     1.3    60.9    +      -       -      +
    446R  ARG*     2.9    28.8    +      -       -      +
    447R  SER*     2.9    35.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 444 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    426R  ALA*     3.6    38.5    -      -       +      +
    427R  CYS*     3.9    12.3    -      -       -      +
    430R  ALA*     3.6    23.3    -      -       +      -
    435R  ARG*     3.8    25.4    -      -       +      +
    437R  LEU*     4.5     5.2    -      -       +      -
    440R  GLU*     2.9    25.2    +      -       +      +
    441R  GLY*     3.5    10.5    -      -       -      +
    443R  ASP*     1.3    77.0    -      -       -      +
    445R  ILE*     1.3    61.9    +      -       -      +
    447R  SER*     3.4     3.2    +      -       -      -
    448R  ALA*     3.1    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 445 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384R  VAL      4.0    12.6    -      -       -      +
    385R  TRP*     3.7    22.9    -      -       +      -
    388R  PRO*     3.9    14.8    -      -       +      -
    423R  ALA*     3.9    31.2    -      -       +      +
    426R  ALA*     5.5     1.3    -      -       +      -
    427R  CYS*     4.0    19.7    -      -       -      -
    441R  GLY      3.0    20.1    +      -       -      +
    442R  GLY      3.8     3.8    -      -       -      +
    444R  VAL*     1.3    75.8    -      -       +      +
    446R  ARG*     1.3    56.9    +      -       -      +
    448R  ALA*     3.1     7.4    +      -       -      +
    449R  CYS*     2.9    27.6    +      -       -      -
    455R  LEU*     3.9     6.3    -      -       +      +
    459R  CYS*     3.3    32.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 446 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385R  TRP*     4.0    27.9    -      -       +      -
    442R  GLY*     3.0    34.8    +      -       -      +
    443R  ASP*     2.9    31.3    +      -       -      +
    444R  VAL      3.4     0.2    -      -       -      -
    445R  ILE*     1.3    74.7    -      -       -      +
    447R  SER*     1.3    62.5    +      -       -      +
    449R  CYS*     3.3    22.8    +      -       +      +
    450R  LYS*     3.6    16.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 447 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435R  ARG*     4.6    10.6    +      -       -      -
    443R  ASP*     2.9    20.0    +      -       -      +
    444R  VAL*     3.6     7.4    -      -       -      -
    446R  ARG*     1.3    75.4    -      -       -      +
    448R  ALA*     1.3    62.8    +      -       -      +
    450R  LYS*     3.2    32.2    +      -       -      +
    451R  TRP*     3.7     9.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 448 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422R  VAL*     4.2     1.8    -      -       +      -
    426R  ALA*     4.0    16.8    -      -       +      -
    444R  VAL      3.1    13.1    +      -       -      +
    445R  ILE*     3.1     5.9    +      -       -      +
    447R  SER*     1.3    76.2    -      -       -      +
    449R  CYS*     1.3    62.6    +      -       -      +
    450R  LYS      3.2     0.5    +      -       -      -
    451R  TRP*     3.3    30.8    +      -       +      +
    452R  SER*     3.0    23.7    +      -       -      -
    455R  LEU*     3.5    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 449 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385R  TRP*     5.6     0.9    -      -       -      -
    445R  ILE      2.9    19.3    +      -       -      -
    446R  ARG*     3.3    16.6    -      -       -      +
    447R  SER      3.2     0.4    -      -       -      -
    448R  ALA*     1.3    76.5    -      -       -      +
    450R  LYS*     1.3    60.5    +      -       +      +
    451R  TRP      3.3     0.2    -      -       -      -
    452R  SER      3.4    21.1    +      -       -      +
    453R  PRO*     5.0     0.3    -      -       -      +
    455R  LEU*     3.9     6.5    -      -       -      +
    456R  ALA*     3.7    29.6    -      -       +      +
    459R  CYS*     3.5    32.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 450 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    446R  ARG*     3.9    15.2    +      -       -      +
    447R  SER*     3.4    22.1    +      -       -      +
    448R  ALA      3.1     1.2    -      -       -      -
    449R  CYS*     1.3    77.8    -      -       -      +
    451R  TRP*     1.3    61.0    +      -       +      +
----------------------------------------------------------
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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