Contacts of the helix formed by residues 5413 - 5425 (chain b) in PDB entry 2AXT


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 ASP5413 (chain b).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5411b  PHE*     3.6     2.8    -      -       +      -
   5412b  THR*     1.3    78.0    +      -       -      +
   5414b  PRO*     1.3    74.9    -      -       -      +
   5415b  PRO*     3.1    20.7    -      -       -      +
   5416b  THR*     2.9    40.3    +      -       -      +
   5417b  VAL*     3.1    10.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO5414 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5392b  PHE*     5.5     4.5    -      -       +      -
   5393b  GLU*     3.4    45.5    -      -       +      +
   5397b  VAL      5.9     0.7    -      -       -      +
   5412b  THR      3.3    11.0    -      -       -      +
   5413b  ASP*     1.3    87.2    -      -       -      +
   5415b  PRO*     1.3    73.0    -      -       +      +
   5417b  VAL*     3.0     8.3    +      -       +      +
   5418b  LYS*     2.8    31.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO5415 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5413b  ASP*     3.0    21.7    -      -       -      +
   5414b  PRO*     1.3    89.8    -      -       +      +
   5416b  THR*     1.3    58.9    +      -       -      +
   5418b  LYS*     3.0    19.1    +      -       -      +
   5419b  SER*     2.8    30.6    +      -       -      -
   5422b  ARG*     5.1     1.0    +      -       -      -
   5038u  GLU*     6.0     2.5    -      -       -      +
   5040u  VAL*     6.5     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR5416 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5411b  PHE*     3.7    27.8    -      -       +      -
   5413b  ASP*     2.9    29.5    +      -       -      -
   5415b  PRO*     1.3    75.5    -      -       -      +
   5417b  VAL*     1.3    63.5    +      -       -      +
   5419b  SER*     3.6     6.9    -      -       -      -
   5420b  TYR*     3.0    56.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL5417 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5346b  PHE*     3.8     6.9    -      -       +      -
   5392b  PHE*     3.9    22.7    -      -       +      -
   5397b  VAL*     4.0     9.2    -      -       +      +
   5398b  THR*     3.9    20.4    -      -       -      +
   5399b  VAL*     3.8    22.0    -      -       +      -
   5411b  PHE      3.7    21.3    -      -       -      +
   5412b  THR      3.9     5.2    -      -       -      -
   5413b  ASP      3.1    24.6    +      -       -      +
   5414b  PRO*     3.0     7.3    +      -       +      +
   5416b  THR*     1.3    77.9    -      -       -      +
   5418b  LYS*     1.3    65.4    +      -       -      +
   5420b  TYR*     3.3     2.8    +      -       -      +
   5421b  ALA*     2.9    20.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS5418 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5381b  ILE*     3.9    31.6    -      -       +      -
   5392b  PHE*     3.5    30.5    -      -       +      -
   5393b  GLU*     2.7    27.9    +      -       -      +
   5414b  PRO*     2.8    26.5    +      -       -      +
   5415b  PRO*     3.4    16.2    -      -       +      +
   5417b  VAL*     1.3    74.3    -      -       -      +
   5419b  SER*     1.3    69.4    +      -       -      +
   5421b  ALA*     2.7    15.3    +      -       -      +
   5422b  ARG*     2.9    21.2    +      -       -      +
   5195o  ASP*     4.6    11.6    +      -       -      +
   5044u  ASP*     4.0    22.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER5419 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5415b  PRO      2.8    19.0    +      -       -      -
   5416b  THR*     3.6     9.2    -      -       -      -
   5418b  LYS*     1.3    74.9    -      -       -      +
   5420b  TYR*     1.3    67.2    +      -       -      +
   5422b  ARG*     3.1    34.4    +      -       -      +
   5423b  LYS*     3.3    18.8    +      -       -      +
   5205o  GLU*     3.4    21.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR5420 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5341b  LYS*     3.3    32.0    +      -       -      -
   5346b  PHE*     3.7    12.0    -      -       +      -
   5399b  VAL*     4.7     5.8    -      -       +      -
   5401b  PHE*     3.3    36.1    -      +       +      -
   5406b  LEU*     3.3    24.6    -      -       +      +
   5411b  PHE*     4.3    13.5    -      +       -      -
   5416b  THR*     3.0    45.7    +      -       +      +
   5417b  VAL*     3.6     5.2    -      -       -      +
   5419b  SER*     1.3    84.3    -      -       -      +
   5421b  ALA*     1.3    60.7    +      -       -      +
   5423b  LYS*     3.5     5.3    +      -       +      +
   5424b  ALA*     3.2    17.3    +      -       -      +
   5429b  ILE*     3.3    24.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA5421 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5346b  PHE*     3.6    21.1    -      -       +      -
   5356b  VAL*     3.8    11.6    -      -       +      +
   5368b  VAL*     4.0    13.8    -      -       +      +
   5370b  LEU*     5.2     0.4    -      -       +      -
   5381b  ILE*     5.1     0.7    -      -       +      -
   5392b  PHE*     3.9    23.8    -      -       +      -
   5417b  VAL      2.9    12.9    +      -       -      +
   5418b  LYS*     2.7    16.0    +      -       -      +
   5420b  TYR*     1.3    69.9    -      -       -      +
   5422b  ARG*     1.3    58.5    +      -       -      +
   5424b  ALA*     3.0    21.1    +      -       -      +
   5425b  ILE*     3.3     5.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG5422 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5368b  VAL*     4.4    12.6    -      -       +      -
   5381b  ILE*     4.1    20.3    -      -       +      +
   5415b  PRO      5.1     0.6    +      -       -      -
   5418b  LYS*     2.9    11.8    +      -       -      +
   5419b  SER*     3.4    30.4    -      -       -      +
   5421b  ALA*     1.3    76.0    -      -       -      +
   5423b  LYS*     1.3    71.4    +      -       -      +
   5424b  ALA      3.5     0.3    +      -       -      -
   5425b  ILE*     3.6    22.5    -      -       +      +
   5426b  PHE*     4.0    12.1    -      -       -      -
   5195o  ASP*     3.5    29.8    +      -       -      +
   5196o  SER*     4.3    22.2    +      -       -      -
   5205o  GLU*     2.8    30.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS5423 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5314b  TYR*     5.9     0.2    -      -       -      -
   5419b  SER*     3.3    17.1    +      -       -      +
   5420b  TYR*     3.9     9.0    -      -       +      +
   5421b  ALA      3.2     0.6    -      -       -      -
   5422b  ARG*     1.3    88.3    -      -       -      +
   5424b  ALA*     1.3    62.5    +      -       -      +
   5425b  ILE      3.3     0.2    -      -       -      -
   5426b  PHE*     3.5    24.7    +      -       +      +
   5427b  GLY      3.9     2.3    -      -       -      +
   5428b  GLU      5.0     0.5    -      -       -      +
   5429b  ILE*     3.6    28.3    -      -       +      +
   5201o  PRO      3.7    14.5    +      -       -      -
   5202o  GLN*     3.0    33.9    -      -       -      +
   5203o  ALA      4.8     8.2    +      -       -      -
   5205o  GLU*     3.3    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA5424 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5344b  ALA*     5.8     0.4    -      -       +      -
   5346b  PHE*     4.0     9.9    -      -       +      -
   5356b  VAL*     3.7    25.7    -      -       +      +
   5358b  ARG*     4.8     3.3    +      -       -      +
   5420b  TYR      3.2    13.9    +      -       -      +
   5421b  ALA      3.0    14.5    +      -       -      +
   5423b  LYS*     1.3    74.8    -      -       -      +
   5425b  ILE*     1.3    54.6    +      -       -      +
   5426b  PHE      2.9     2.2    -      -       -      -
   5427b  GLY*     2.5    39.0    +      -       -      +
   5429b  ILE*     4.0     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE5425 (chain b). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   5275b  TRP*     4.2     1.2    -      -       -      -
   5356b  VAL*     3.9    16.0    -      -       +      +
   5357b  ARG      3.7    16.6    -      -       -      +
   5358b  ARG*     3.5     9.8    -      -       -      +
   5359b  MET*     3.1    45.4    +      -       +      +
   5366b  PHE*     3.6    22.2    -      -       +      +
   5367b  PRO      3.3    28.5    -      -       -      +
   5368b  VAL*     3.9     8.7    -      -       +      -
   5421b  ALA      3.3     4.3    +      -       -      +
   5422b  ARG*     3.6    16.6    -      -       +      +
   5424b  ALA*     1.3    77.5    -      -       -      +
   5426b  PHE*     1.3    70.3    +      -       +      +
   5427b  GLY      3.2     4.3    +      -       -      -
----------------------------------------------------------
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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