Contacts of the helix formed by residues 323 - 343 (chain A) in PDB entry 6X70


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 SER 323 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319A  TYR*     2.8    26.0    +      -       -      -
    320A  PHE*     3.6     2.0    +      -       -      -
    322A  HIS*     1.3    74.3    -      -       -      +
    324A  ARG*     1.3    58.7    +      -       -      +
    325A  LEU*     4.0     0.7    -      -       -      +
    326A  HIS*     2.9    29.3    +      -       -      +
    327A  HIS*     2.9    31.5    +      -       -      -
      4T    C      3.6    15.7    -      -       -      -
      5T    G      2.6    21.1    +      -       -      -
      6T    C      4.1     5.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322A  HIS      3.4     5.7    +      -       -      -
    323A  SER*     1.3    73.0    -      -       -      +
    325A  LEU*     1.3    86.3    +      -       +      +
    327A  HIS*     3.6     1.4    -      -       -      +
    328A  LEU*     2.9    35.1    +      -       +      +
    367A  PHE*     4.1    15.8    -      -       +      -
    393A  HIS*     5.0     0.2    +      -       -      -
    399A  ASP*     2.8    48.6    +      -       -      +
    400A  ILE      5.0     4.6    +      -       -      -
    401A  ALA*     4.1    12.7    -      -       +      +
    415A  GLY*     5.0     6.3    -      -       -      +
    436A  TYR*     3.4    38.9    +      -       +      +
    438A  PHE*     3.8    17.0    -      -       +      -
      4T    C      4.3     1.4    +      -       -      -
      5T    G      2.5    47.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323A  SER      3.2     1.0    -      -       -      -
    324A  ARG*     1.3   103.5    -      -       +      +
    326A  HIS*     1.3    64.8    +      -       -      +
    328A  LEU*     3.4    15.7    +      -       +      +
    329A  SER*     3.1    26.9    +      -       -      -
    399A  ASP*     5.5     0.2    -      -       -      +
     12P    G      5.3     7.9    -      -       +      +
      5T    G      3.3    38.2    +      -       +      +
      6T    C      3.1    53.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  PHE*     3.2    62.6    -      +       +      +
    323A  SER*     2.9    25.7    +      -       -      +
    325A  LEU*     1.3    77.2    -      -       -      +
    327A  HIS*     1.3    73.2    +      +       -      +
    329A  SER*     3.2     2.6    +      -       -      -
    330A  ALA*     2.9    37.2    +      -       +      +
    649A  TYR*     3.6    15.0    +      -       -      -
      6T    C      3.4    15.0    +      -       -      +
      7T    T      2.7    24.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  PHE      3.2    15.5    +      -       -      -
    321A  ALA*     2.7    32.2    +      -       -      -
    323A  SER      2.9    27.4    +      -       -      +
    324A  ARG*     3.6     6.3    -      -       -      +
    326A  HIS*     1.3    80.0    -      +       -      +
    328A  LEU*     1.3    57.8    +      -       -      +
    330A  ALA*     3.8     2.5    -      -       -      +
    331A  TRP*     2.9    69.9    +      +       +      -
    438A  PHE*     3.6    33.8    -      +       +      -
    439A  GLU*     5.3     4.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324A  ARG*     2.9    26.9    +      -       +      +
    325A  LEU*     3.7    18.6    -      -       +      +
    326A  HIS      3.2     0.2    -      -       -      -
    327A  HIS*     1.3    76.4    -      -       -      +
    329A  SER*     1.3    58.5    +      -       -      +
    331A  TRP*     3.8     5.8    -      -       +      +
    332A  LYS*     3.0    31.1    +      -       -      +
    367A  PHE*     3.8    28.7    -      -       +      -
    465A  SER*     5.7     5.8    -      -       -      -
    466A  ILE*     3.6    31.6    +      -       +      +
    467A  ASP*     5.6     1.1    -      -       -      +
     12P    G      5.9    11.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  LEU      3.1    11.1    +      -       -      -
    326A  HIS      3.6     2.5    -      -       -      -
    328A  LEU*     1.3    77.6    -      -       -      +
    330A  ALA*     1.3    57.8    +      -       -      +
    332A  LYS*     3.2    18.1    +      -       -      +
    333A  ALA*     2.9    29.2    +      -       -      +
     12P    G      4.1     6.8    +      -       -      +
      6T    C      3.0    26.0    +      -       -      -
      7T    T      3.2    38.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326A  HIS*     2.9    34.7    +      -       +      +
    327A  HIS*     4.0     4.0    -      -       -      +
    329A  SER*     1.3    75.8    -      -       -      +
    331A  TRP*     1.3    60.2    +      -       +      +
    333A  ALA*     3.3     6.1    +      -       -      +
    334A  ASN*     2.8    43.3    +      -       -      +
    653A  LYS*     6.2     1.8    -      -       -      +
      7T    T      5.4     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327A  HIS*     2.9    56.2    +      +       +      +
    328A  LEU*     3.8     9.9    -      -       +      +
    330A  ALA*     1.3    78.5    -      -       +      +
    332A  LYS*     1.3    57.0    +      -       -      +
    334A  ASN*     3.4    14.0    +      -       -      +
    335A  LEU*     3.0    36.2    +      -       +      +
    367A  PHE*     4.2    20.2    -      +       -      -
    438A  PHE*     3.4    49.4    -      +       +      -
    441A  PHE*     4.0     5.8    -      -       +      -
    442A  GLN*     3.6    28.0    -      -       +      +
    466A  ILE*     3.3    42.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 332 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328A  LEU      3.0    17.2    +      -       -      +
    329A  SER*     3.2    18.1    +      -       -      +
    331A  TRP*     1.3    73.4    -      -       -      +
    333A  ALA*     1.3    65.3    +      -       -      +
    335A  LEU*     3.2    12.7    +      -       -      +
    336A  LYS*     3.1    54.4    +      -       -      +
    464A  ILE      3.8    23.3    -      -       -      +
    465A  SER*     4.9     8.7    -      -       -      +
    466A  ILE      5.3     0.6    -      -       -      +
     11P    A      5.4     3.6    +      -       -      -
     12P    G      3.9    26.0    +      -       -      +
      7T    T      4.7     4.6    +      -       -      -
      8T    A      4.5    18.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 333 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  SER      2.9    16.0    +      -       -      +
    330A  ALA*     3.7     7.4    -      -       -      +
    332A  LYS*     1.3    78.1    -      -       -      +
    334A  ASN*     1.3    61.3    +      -       -      +
    336A  LYS*     3.2    10.2    +      -       -      +
    337A  ASP*     2.9    29.6    +      -       -      +
    620A  ARG*     3.5    29.8    -      -       -      +
      8T    A      5.9     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 334 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330A  ALA*     2.8    29.2    +      -       -      +
    331A  TRP*     3.7    14.6    -      -       +      +
    333A  ALA*     1.3    79.7    -      -       -      +
    335A  LEU*     1.3    56.3    +      -       +      +
    337A  ASP*     3.5     6.2    +      -       -      +
    338A  LYS*     2.9    30.2    +      -       -      +
    653A  LYS*     5.5     5.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 335 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  TRP*     3.0    22.7    +      -       +      +
    332A  LYS*     3.2     7.2    +      -       -      +
    334A  ASN*     1.3    75.7    -      -       +      +
    336A  LYS*     1.3    58.3    +      -       -      +
    338A  LYS*     3.4    17.3    +      -       +      +
    339A  PHE*     3.0    28.2    +      -       -      +
    445A  SER*     4.8     4.5    -      -       -      +
    449A  TYR*     3.8    32.3    -      -       +      +
    463A  PRO*     3.8    20.3    -      -       +      +
    465A  SER*     3.5    36.1    -      -       -      +
    466A  ILE*     3.7    11.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 336 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  LYS*     3.1    51.7    +      -       +      +
    333A  ALA*     3.2    11.6    +      -       -      +
    335A  LEU*     1.3    74.4    -      -       +      +
    337A  ASP*     1.3    64.9    +      -       -      +
    339A  PHE*     3.4     8.0    +      -       -      +
    340A  LEU*     3.1    29.1    +      -       -      +
    463A  PRO*     4.7    12.8    -      -       +      +
    464A  ILE      5.4     0.9    -      -       -      -
    617A  VAL      5.9     0.4    +      -       -      -
    618A  LEU*     3.9    54.4    -      -       +      +
      8T    A      4.8    16.6    +      -       -      -
      9T    C      5.0     7.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 337 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333A  ALA      2.9    15.6    +      -       -      +
    334A  ASN*     3.9     6.3    -      -       -      +
    336A  LYS*     1.3    75.4    -      -       -      +
    338A  LYS*     1.3    56.5    +      -       -      +
    340A  LEU*     3.1    18.3    +      -       -      +
    341A  ASN*     2.7    51.8    +      -       -      +
    619A  GLN*     5.4     2.9    +      -       -      -
    657A  ILE*     4.4    20.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 338 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334A  ASN      2.9    19.0    +      -       -      +
    335A  LEU*     3.6    18.8    -      -       +      +
    336A  LYS      3.3     0.2    -      -       -      -
    337A  ASP*     1.3    75.7    -      -       -      +
    339A  PHE*     1.3    61.9    +      -       -      +
    341A  ASN*     3.2     7.5    +      -       -      +
    342A  GLU*     3.0    54.1    +      -       +      +
    449A  TYR*     5.8     6.9    -      -       -      +
    453A  LYS*     5.1     7.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 339 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335A  LEU      3.0    14.2    +      -       -      +
    336A  LYS      3.5     7.6    -      -       -      +
    337A  ASP      3.3     0.2    -      -       -      -
    338A  LYS*     1.3    76.1    -      -       -      +
    340A  LEU*     1.3    70.3    +      -       +      +
    342A  GLU*     3.2     7.6    +      -       -      -
    343A  ASN*     2.9    58.2    +      -       +      +
    460A  LEU*     3.9    25.1    -      -       +      -
    461A  ILE      3.4    26.0    -      -       -      -
    462A  LEU*     4.2     4.7    -      -       +      -
    463A  PRO*     4.0    11.9    -      -       +      -
    614A  PRO*     3.9    30.7    -      -       +      -
    615A  LYS*     4.4     7.4    -      -       +      -
    618A  LEU*     3.6    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 340 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336A  LYS      3.1    17.4    +      -       -      +
    337A  ASP*     3.1    22.2    +      -       -      +
    339A  PHE*     1.3    82.4    -      -       +      +
    341A  ASN*     1.3    65.4    +      -       -      +
    343A  ASN      3.1     2.6    +      -       -      -
    344A  ILE*     3.1    28.2    +      -       +      +
    615A  LYS*     3.5    51.3    -      -       +      +
    618A  LEU*     4.1     9.6    -      -       +      +
    619A  GLN*     3.5    39.5    -      -       -      +
    620A  ARG      5.0     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 341 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337A  ASP*     2.7    50.7    +      -       -      +
    338A  LYS*     3.2     7.0    +      -       -      +
    340A  LEU*     1.3    75.9    -      -       -      +
    342A  GLU*     1.3    60.4    +      -       +      +
    344A  ILE*     3.6    30.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 342 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338A  LYS*     3.0    52.9    +      -       +      +
    339A  PHE*     3.8     8.7    -      -       -      +
    340A  LEU      3.1     0.2    -      -       -      -
    341A  ASN*     1.3    79.7    -      -       +      +
    343A  ASN*     1.3    69.1    +      -       -      +
    344A  ILE*     3.5     3.2    +      -       -      +
    345A  HIS*     4.9     1.4    +      -       -      +
    346A  LYS*     4.3    16.8    +      -       -      +
    453A  LYS*     4.5    14.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 343 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339A  PHE*     2.9    57.5    +      -       +      +
    340A  LEU      3.1     2.7    +      -       -      -
    342A  GLU*     1.3    87.2    +      -       -      +
    344A  ILE*     1.3    61.4    +      -       -      +
    345A  HIS      3.0     7.3    +      -       -      +
    346A  LYS*     3.4    37.9    -      -       +      +
    348A  THR*     4.2    13.3    +      -       -      -
    460A  LEU*     5.6     1.0    -      -       -      +
    615A  LYS*     3.1    27.6    +      -       +      +
----------------------------------------------------------
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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