Contacts of the helix formed by residues 437 - 449 (chain L) in PDB entry 5XTE


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 437 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385L  GLU*     2.8    24.3    -      -       -      +
    388L  VAL*     4.3     4.3    -      -       -      -
    435L  GLU      3.5     4.9    +      -       -      +
    436L  VAL*     1.3    75.7    -      -       -      +
    438L  ALA*     1.3    79.5    +      -       -      +
    439L  SER*     3.2    12.7    +      -       -      +
    440L  VAL*     2.9    20.4    +      -       +      +
    441L  VAL*     2.9    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 438 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383L  ALA*     3.4    26.9    -      -       -      +
    385L  GLU*     3.3    23.1    +      -       +      +
    388L  VAL*     3.7    25.5    -      -       +      +
    437L  ASP*     1.3    85.8    +      -       -      +
    439L  SER*     1.3    56.6    +      -       -      +
    441L  VAL*     3.5     2.8    -      -       -      +
    442L  ARG*     2.9    35.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 439 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437L  ASP*     3.2    11.8    +      -       -      -
    438L  ALA*     1.3    74.9    -      -       -      +
    440L  VAL*     1.3    63.7    +      -       -      +
    442L  ARG*     3.1    19.9    -      -       -      +
    443L  GLU*     2.9    30.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 440 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303L  ALA*     4.4     8.7    -      -       +      -
    435L  GLU*     4.8     6.1    -      -       +      +
    436L  VAL*     5.0     5.4    -      -       +      -
    437L  ASP*     2.9    30.7    +      -       +      +
    439L  SER*     1.3    76.0    -      -       -      +
    441L  VAL*     1.3    60.5    +      -       -      +
    443L  GLU*     3.2     5.0    +      -       -      +
    444L  ILE*     2.9    51.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 441 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303L  ALA*     4.8    12.3    -      -       +      +
    306L  VAL*     4.7     7.4    -      -       +      -
    307L  ALA*     4.6    11.9    -      -       +      -
    310L  ILE*     4.9     4.5    -      -       +      -
    379L  LEU*     4.7    12.8    -      -       +      +
    383L  ALA*     5.0     4.0    -      -       +      -
    388L  VAL*     4.0    23.1    -      -       +      -
    436L  VAL*     3.7    22.2    -      -       +      -
    437L  ASP      2.9    17.5    +      -       -      +
    438L  ALA*     3.5     8.3    -      -       -      +
    440L  VAL*     1.3    77.5    -      -       -      +
    442L  ARG*     1.3    58.5    +      -       -      +
    444L  ILE*     4.2     0.4    -      -       -      +
    445L  CYS*     2.9    50.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 442 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12G  GLU*     6.1     0.6    -      -       -      +
     16G  ASN*     2.8    45.3    +      -       -      +
    379L  LEU      3.3    21.9    -      -       -      +
    380L  CYS      4.2     5.7    -      -       -      +
    381L  THR*     3.0    28.3    +      -       -      +
    383L  ALA*     3.1    29.7    +      -       +      +
    438L  ALA*     2.9    21.2    +      -       -      +
    439L  SER*     3.1    25.4    -      -       -      +
    441L  VAL*     1.3    76.3    -      -       -      +
    443L  GLU*     1.3    64.0    +      -       +      +
    445L  CYS*     4.2     0.2    -      -       -      +
    446L  SER*     2.9    31.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 443 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16D  ARG*     5.2     0.2    +      -       -      -
    439L  SER*     2.9    20.3    +      -       -      +
    440L  VAL*     3.5     7.6    -      -       -      +
    441L  VAL      3.2     0.2    -      -       -      -
    442L  ARG*     1.3    82.1    -      -       -      +
    444L  ILE*     1.3    63.2    +      -       +      +
    446L  SER*     3.5     5.8    +      -       -      -
    447L  LYS*     2.9    28.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 444 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300L  ASP*     3.6    31.4    -      -       +      +
    303L  ALA*     3.5    27.6    -      -       +      -
    304L  LEU*     3.6    28.5    -      -       +      -
    440L  VAL*     2.9    29.9    +      -       +      +
    441L  VAL      4.2     1.1    -      -       -      +
    443L  GLU*     1.3    77.9    -      -       +      +
    445L  CYS*     1.3    61.2    +      -       -      +
    447L  LYS*     2.9    24.4    +      -       +      +
    448L  TYR*     2.9    32.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 445 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303L  ALA      5.5     0.7    -      -       -      -
    304L  LEU*     4.4    13.5    -      -       -      -
    307L  ALA*     3.6    31.0    -      -       -      -
    379L  LEU*     4.0    23.6    -      -       +      +
    380L  CYS*     3.8     4.2    -      -       -      -
    441L  VAL*     2.9    34.7    +      -       -      +
    444L  ILE*     1.3    77.5    -      -       -      +
    446L  SER*     1.3    57.7    +      -       -      +
    448L  TYR      4.5     0.4    -      -       -      +
    449L  ILE*     2.8    54.0    +      -       +      +
    450L  TYR      3.4     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 446 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16D  ARG*     2.4    49.0    +      -       -      -
    380L  CYS*     4.2    15.6    +      -       -      -
    442L  ARG      2.9    22.0    +      -       -      -
    443L  GLU*     3.7     7.2    -      -       -      -
    445L  CYS*     1.3    76.8    -      -       -      +
    447L  LYS*     1.3    60.9    +      -       -      +
    448L  TYR      3.4     0.3    +      -       -      -
    450L  TYR*     3.5    33.2    +      -       -      +
    480L  PHE*     5.9     2.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 447 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  ARG*     4.8     5.9    -      -       -      +
     16D  ARG*     3.7     7.4    +      -       -      +
    300L  ASP*     4.1     7.5    +      -       -      +
    443L  GLU*     2.9    17.8    +      -       +      +
    444L  ILE*     2.9    17.6    +      -       +      +
    446L  SER*     1.3    78.8    -      -       -      +
    448L  TYR*     1.3    97.1    +      -       +      +
    452L  GLN*     4.6    11.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 448 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104C  ARG*     3.5    30.5    +      -       -      -
    291L  VAL*     3.9    12.5    -      -       -      +
    292L  GLU*     3.9    18.2    -      -       +      +
    294L  PRO*     3.4    34.6    -      -       +      +
    300L  ASP*     2.8    29.1    +      -       -      -
    304L  LEU*     4.6     2.9    -      -       +      -
    354L  LEU*     4.0    19.5    -      -       +      -
    444L  ILE*     2.9    40.8    +      -       +      +
    447L  LYS*     1.3   111.2    +      -       +      +
    449L  ILE*     1.3    61.9    +      -       +      +
    452L  GLN*     3.2    23.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 449 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291L  VAL*     4.4    17.9    -      -       +      -
    304L  LEU*     5.5     0.9    -      -       +      -
    307L  ALA*     5.8     2.9    -      -       +      -
    354L  LEU*     4.7    13.5    -      -       +      -
    376L  TRP*     3.7    59.2    -      -       +      +
    377L  MET*     5.7     2.5    -      -       -      -
    379L  LEU*     6.0     2.0    -      -       +      -
    380L  CYS*     3.8     9.9    -      -       -      -
    445L  CYS*     2.8    43.1    +      -       +      +
    448L  TYR*     1.3    75.9    -      -       +      +
    450L  TYR*     1.3    66.5    +      -       -      +
    451L  ASP      3.3     2.6    +      -       -      -
    452L  GLN*     3.4     6.5    +      -       -      +
    475L  MET*     3.4    20.0    -      -       +      +
----------------------------------------------------------
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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