Contacts of the helix formed by residues 382 - 398 (chain B) in PDB entry 3COG


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 382 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381B  GLU*     1.3    74.3    -      -       -      +
    383B  GLU*     1.3    67.5    +      -       -      +
    384B  GLU*     4.5     2.9    -      -       +      +
    385B  ASP*     3.0    26.4    +      -       -      +
    386B  LEU*     3.1    11.1    +      -       -      +
     15C  PHE      4.9     3.1    -      -       -      +
     17C  HIS*     3.0    22.8    +      -       -      +
     18C  PHE*     4.3     2.4    +      -       -      +
     19C  ALA*     2.9    34.2    +      -       -      +
     20C  THR*     3.0    19.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 383 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271B  LYS*     4.4    21.0    +      -       -      +
    272B  ASN*     3.6    24.1    +      -       -      +
    275B  ALA*     3.6    33.2    -      -       +      +
    276B  VAL*     6.3     0.4    -      -       +      -
    381B  GLU      3.4     3.8    +      -       -      -
    382B  ASP*     1.3    71.3    -      -       -      +
    384B  GLU*     1.3    60.2    +      -       -      +
    386B  LEU*     3.2     7.0    +      -       -      +
    387B  LEU*     3.0    42.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 384 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382B  ASP*     3.2     2.9    -      -       +      +
    383B  GLU*     1.3    82.1    -      -       -      +
    385B  ASP*     1.3    67.0    +      -       -      +
    387B  LEU*     3.9    22.0    -      -       -      +
    388B  GLU*     2.9    26.9    +      -       +      +
     16C  GLN*     6.2     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 385 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334B  LEU*     3.4    23.1    -      -       +      +
    382B  ASP*     3.0    14.5    +      -       -      +
    384B  GLU*     1.3    79.6    -      -       -      +
    386B  LEU*     1.3    61.8    +      -       -      +
    388B  GLU*     3.5     6.9    +      -       -      +
    389B  ASP*     3.1    24.1    +      -       -      +
     17C  HIS*     2.8    44.4    +      -       -      -
     20C  THR*     2.7    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 386 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272B  ASN*     3.8    28.3    -      -       +      +
    276B  VAL*     4.7     8.5    -      -       +      -
    334B  LEU*     3.9    20.0    -      -       +      -
    335B  PHE*     3.7    21.3    -      -       +      -
    346B  SER*     3.3    33.0    -      -       -      +
    378B  VAL*     3.8    14.6    -      -       +      -
    379B  GLY      4.2     0.4    -      -       -      +
    381B  GLU*     3.8    21.3    -      -       +      +
    382B  ASP      3.1     8.9    +      -       -      +
    383B  GLU*     3.6     6.5    -      -       -      +
    385B  ASP*     1.3    74.5    -      -       -      +
    387B  LEU*     1.3    66.2    +      -       -      +
    389B  ASP*     3.3     4.1    +      -       -      +
    390B  LEU*     3.2    27.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 387 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275B  ALA*     3.7    27.6    -      -       +      +
    276B  VAL*     3.9    21.3    -      -       +      -
    279B  PHE*     3.8    31.9    -      -       +      -
    383B  GLU*     3.0    40.4    +      -       +      +
    384B  GLU*     3.9    23.3    -      -       -      +
    386B  LEU*     1.3    75.1    -      -       -      +
    388B  GLU*     1.3    62.4    +      -       -      +
    390B  LEU*     3.3     7.3    +      -       +      +
    391B  ASP*     3.0    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 388 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384B  GLU*     2.9    20.6    +      -       +      +
    385B  ASP*     3.6     7.6    -      -       -      +
    387B  LEU*     1.3    76.0    -      -       -      +
    389B  ASP*     1.3    60.0    +      -       -      +
    391B  ASP*     4.3    13.6    -      -       -      +
    392B  GLN*     2.9    54.7    +      -       -      +
    395B  LYS*     6.1     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 389 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332B  LEU*     3.6     7.2    -      -       -      +
    333B  LYS*     2.8    28.7    +      -       -      +
    334B  LEU*     2.9    33.7    +      -       +      -
    335B  PHE*     2.9    24.6    +      -       +      -
    385B  ASP      3.1    17.5    +      -       -      +
    386B  LEU      3.6     4.7    -      -       -      +
    387B  LEU      3.2     0.4    -      -       -      -
    388B  GLU*     1.3    78.5    -      -       -      +
    390B  LEU*     1.3    61.2    +      -       -      +
    392B  GLN*     3.0    23.5    +      -       -      +
    393B  ALA*     3.0    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 390 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276B  VAL*     3.5    40.4    -      -       +      -
    279B  PHE*     3.9    21.3    -      -       +      -
    280B  LEU*     4.6     8.7    -      -       +      -
    328B  PHE*     3.8    28.6    -      -       +      -
    332B  LEU*     4.2     4.5    -      -       +      -
    335B  PHE*     3.8    20.4    -      -       +      -
    376B  LEU*     3.9    16.8    -      -       +      -
    386B  LEU      3.2    15.8    +      -       -      +
    387B  LEU*     3.6     6.7    -      -       -      +
    389B  ASP*     1.3    77.4    -      -       -      +
    391B  ASP*     1.3    56.9    +      -       -      +
    393B  ALA*     3.3     1.9    +      -       -      +
    394B  LEU*     2.9    36.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 391 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279B  PHE*     3.4    28.3    -      -       +      -
    283B  ASN*     4.2     7.4    +      -       -      -
    387B  LEU      3.0    16.4    +      -       -      +
    388B  GLU*     3.6    15.7    -      -       -      +
    390B  LEU*     1.3    77.7    -      -       -      +
    392B  GLN*     1.3    56.9    +      -       -      +
    394B  LEU*     3.4     4.3    +      -       -      +
    395B  LYS*     3.0    66.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 392 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331B  ASN*     3.2    25.9    +      -       -      +
    333B  LYS*     3.3    31.1    +      -       +      +
    388B  GLU*     2.9    36.4    +      -       -      +
    389B  ASP*     3.0    34.7    +      -       -      -
    391B  ASP*     1.3    75.6    +      -       -      +
    393B  ALA*     1.3    62.6    +      -       -      +
    395B  LYS*     3.5    12.7    +      -       -      +
    396B  ALA*     3.2    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 393 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328B  PHE*     3.5    49.2    -      -       +      +
    331B  ASN*     4.0     7.9    -      -       +      -
    332B  LEU*     3.7    13.0    -      -       +      +
    389B  ASP      3.0    18.3    +      -       -      +
    392B  GLN*     1.3    83.4    -      -       -      +
    394B  LEU*     1.3    64.6    +      -       -      +
    396B  ALA*     3.2     5.4    +      -       -      +
    397B  ALA      3.2    16.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 394 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279B  PHE*     3.9    15.7    -      -       +      -
    280B  LEU*     4.2    13.5    -      -       +      -
    283B  ASN*     3.7    35.0    -      -       -      +
    285B  TRP*     4.6    13.0    -      -       +      +
    286B  VAL*     4.2    13.7    -      -       +      -
    316B  PHE*     4.3     5.2    -      -       +      -
    318B  ILE*     3.8    31.4    -      -       +      -
    328B  PHE*     3.7    14.5    -      -       +      -
    390B  LEU*     2.9    21.2    +      -       +      +
    391B  ASP*     3.7     3.8    -      -       -      +
    393B  ALA*     1.3    75.4    -      -       -      +
    395B  LYS*     1.3    57.2    +      -       +      +
    397B  ALA*     3.3     5.3    +      -       -      +
    398B  HIS*     2.9    32.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 395 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    285B  TRP*     6.2     0.4    -      -       -      -
    391B  ASP*     3.0    51.9    +      -       -      +
    392B  GLN*     3.7     9.4    -      -       -      +
    393B  ALA      3.3     0.2    -      -       -      -
    394B  LEU*     1.3    73.4    -      -       +      +
    396B  ALA*     1.3    64.0    +      -       -      +
    398B  HIS      3.9     8.3    -      -       -      +
    399B  PRO*     3.2    28.8    -      -       +      +
    400B  PRO*     4.9     4.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 396 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327B  ILE*     3.5    12.3    -      -       +      +
    331B  ASN*     3.4    38.4    -      -       +      +
    392B  GLN*     3.2    14.3    +      -       -      +
    393B  ALA      3.2     8.0    +      -       -      +
    395B  LYS*     1.3    78.1    -      -       -      +
    397B  ALA*     1.3    59.8    +      -       -      +
    399B  PRO*     4.1     8.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 397 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318B  ILE*     4.1     8.5    -      -       +      -
    324B  HIS*     3.3    48.8    +      -       -      +
    327B  ILE*     3.6    16.1    -      -       +      +
    328B  PHE*     4.0     5.8    -      -       -      +
    393B  ALA      3.2    12.3    +      -       -      +
    394B  LEU      3.3     7.4    +      -       -      +
    396B  ALA*     1.3    78.3    -      -       -      +
    398B  HIS*     1.3    68.6    +      -       +      +
    399B  PRO*     3.6     6.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 398 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    285B  TRP*     3.3    75.8    +      +       +      -
    318B  ILE*     4.2     9.0    -      -       +      +
    319B  LYS      2.6    32.0    +      -       -      -
    320B  GLY*     4.7     0.7    -      -       -      -
    324B  HIS*     3.5    28.0    +      +       -      +
    394B  LEU*     2.9    10.4    +      -       +      +
    395B  LYS*     3.2    13.2    -      -       -      +
    397B  ALA*     1.3    89.6    +      -       +      +
    399B  PRO*     1.3    70.8    -      -       -      +
    400B  PRO*     3.9     0.3    -      -       -      +
----------------------------------------------------------
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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