Contacts of the helix formed by residues 374 - 386 (chain C) in PDB entry 3K6G


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 374 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    372C  LYS*     3.2    10.6    +      -       +      +
    373C  ASP*     1.3    79.8    -      -       -      +
    375C  GLU*     1.3    66.8    +      -       -      +
    376C  ASP*     3.4    19.5    -      -       -      +
    377C  THR*     2.8    41.2    +      -       -      +
    378C  ARG*     3.0    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 375 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    374C  ASP*     1.3    73.6    +      -       -      +
    376C  ASP*     1.3    58.4    -      -       -      +
    378C  ARG*     3.8     6.4    -      -       -      +
    379C  GLU*     2.8    46.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 376 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    374C  ASP*     3.2    18.3    +      -       -      +
    375C  GLU*     1.3    78.9    -      -       -      +
    377C  THR*     1.3    62.4    +      -       -      +
    379C  GLU*     3.6    15.2    +      -       -      +
    380C  ALA*     3.1    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 377 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369C  ASP*     3.4    48.2    -      -       +      +
    372C  LYS*     4.4    14.3    +      -       +      +
    374C  ASP*     2.8    37.3    +      -       -      +
    376C  ASP*     1.3    77.8    -      -       -      +
    378C  ARG*     1.3    62.1    +      -       -      +
    380C  ALA*     3.1     8.8    +      -       -      +
    381C  LEU*     3.0    22.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 378 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369C  ASP      5.6     0.2    +      -       -      -
    370C  LEU*     3.0    37.2    +      -       -      +
    371C  GLN      5.5     0.2    -      -       -      -
    372C  LYS      4.4    11.0    +      -       -      +
    374C  ASP      3.0    13.9    +      -       -      +
    375C  GLU*     3.4     8.5    +      -       -      +
    377C  THR*     1.3    78.2    -      -       -      +
    379C  GLU*     1.3    58.1    +      -       +      +
    381C  LEU*     3.1    11.2    +      -       -      +
    382C  VAL*     2.9    39.1    +      -       +      +
    390C  VAL*     4.1    20.4    -      -       -      +
    394C  ILE*     3.8    25.9    -      -       -      +
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Residues in contact with GLU 379 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375C  GLU*     2.8    31.4    +      -       +      +
    376C  ASP*     4.0    18.2    -      -       -      +
    378C  ARG*     1.3    77.9    -      -       +      +
    380C  ALA*     1.3    57.7    +      -       -      +
    382C  VAL*     3.3    10.4    +      -       -      +
    383C  LYS*     3.0    35.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 380 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    376C  ASP      3.1    14.6    +      -       -      +
    377C  THR*     3.1    12.9    +      -       +      +
    379C  GLU*     1.3    76.0    -      -       -      +
    381C  LEU*     1.3    65.6    +      -       +      +
    383C  LYS*     3.3    13.6    +      -       -      +
    384C  LYS*     3.0    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 381 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362C  TRP*     4.2     3.8    -      -       +      -
    366C  ASP*     4.0    24.0    -      -       -      +
    369C  ASP*     3.8    16.2    -      -       +      +
    370C  LEU*     3.5    45.3    -      -       +      +
    377C  THR*     3.0    18.1    +      -       +      +
    378C  ARG*     3.1    14.3    +      -       -      +
    380C  ALA*     1.3    73.8    -      -       +      +
    382C  VAL*     1.3    62.0    +      -       -      +
    384C  LYS*     3.3     4.7    +      -       +      +
    385C  PHE*     2.8    58.8    +      -       +      +
    390C  VAL*     3.6    11.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 382 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378C  ARG*     2.9    32.2    +      -       +      +
    379C  GLU*     3.6    10.3    -      -       -      +
    380C  ALA      3.2     0.2    -      -       -      -
    381C  LEU*     1.3    75.6    -      -       -      +
    383C  LYS*     1.3    61.7    +      -       +      +
    386C  GLY*     2.7    27.3    +      -       -      +
    387C  ALA*     3.8    28.9    -      -       +      +
    390C  VAL*     4.0    20.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 383 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359C  TYR*     4.5     7.8    -      -       -      -
    379C  GLU*     3.0    19.0    +      -       +      +
    380C  ALA*     3.5    14.6    -      -       -      +
    381C  LEU      3.3     0.2    -      -       -      -
    382C  VAL*     1.3    80.1    -      -       +      +
    384C  LYS*     1.3    61.5    +      -       -      +
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Residues in contact with LYS 384 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359C  TYR*     3.1    15.6    -      -       -      -
    360C  PRO*     3.4    27.9    -      -       +      +
    361C  ILE      5.4     0.7    -      -       -      -
    363C  SER*     4.7     2.0    +      -       -      -
    366C  ASP*     3.0    34.4    +      -       -      +
    380C  ALA      3.0    16.4    +      -       -      +
    381C  LEU*     3.8     6.3    -      -       +      +
    383C  LYS*     1.3    77.9    -      -       -      +
    385C  PHE*     1.3    80.1    +      -       +      +
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Residues in contact with PHE 385 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359C  TYR*     3.3    15.7    -      -       +      -
    360C  PRO*     3.4    35.0    -      -       +      -
    361C  ILE      3.5    15.3    -      -       -      -
    362C  TRP*     3.6    49.4    -      +       +      -
    366C  ASP*     3.3    37.9    -      -       +      -
    381C  LEU*     2.8    26.2    +      -       +      +
    384C  LYS*     1.3    91.5    -      -       +      +
    386C  GLY*     1.3    64.7    +      -       -      +
    389C  ASN*     2.8    41.4    +      -       +      +
    390C  VAL*     4.1     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 386 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359C  TYR*     3.5    23.5    -      -       -      -
    382C  VAL*     2.7    26.2    +      -       -      -
    385C  PHE*     1.3    77.3    -      -       -      +
    387C  ALA*     1.3    65.1    +      -       -      -
    388C  GLN*     3.3     3.7    +      -       -      -
    389C  ASN      3.3     1.0    +      -       -      -
    390C  VAL*     3.2    19.3    +      -       -      +
----------------------------------------------------------
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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