Contacts of the helix formed by residues 382 - 396 (chain A) in PDB entry 2OCA


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 A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    380A  GLU      2.6    11.5    +      -       -      -
    381A  VAL*     1.3    97.6    -      -       -      +
    383A  THR*     1.3    70.2    +      -       -      +
    384A  GLU      3.3     1.1    -      -       -      -
    385A  THR*     2.8     2.4    +      -       -      -
    386A  ARG*     2.8    51.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 383 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    380A  GLU*     3.9     1.9    +      -       -      -
    382A  ASP*     1.3    79.6    -      -       -      +
    384A  GLU*     1.3    61.8    +      -       +      +
    386A  ARG*     4.7     1.7    -      -       -      +
    387A  ASN*     3.3    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 384 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    376A  TYR      4.6    10.9    -      -       -      +
    380A  GLU*     3.8    38.7    +      -       +      +
    382A  ASP      3.3     0.4    -      -       -      -
    383A  THR*     1.3    79.4    -      -       +      +
    385A  THR*     1.3    59.9    +      -       -      +
    387A  ASN*     3.4    12.9    -      -       +      +
    388A  ILE*     3.0    32.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 385 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377A  VAL*     4.0    20.0    -      -       +      +
    379A  GLY      3.6     6.6    +      -       -      -
    380A  GLU      3.3     4.2    +      -       -      -
    381A  VAL*     2.5    40.0    +      -       -      +
    382A  ASP*     2.8     5.8    +      -       -      -
    384A  GLU*     1.3    75.4    -      -       -      +
    386A  ARG*     1.3    64.0    +      -       +      +
    387A  ASN      3.1     1.5    +      -       -      -
    388A  ILE*     3.4    10.5    +      -       -      +
    389A  MET*     3.0    45.2    +      -       +      +
    407A  VAL*     4.5     7.2    -      -       +      +
    411A  GLY*     5.8     3.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 386 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382A  ASP*     2.8    36.8    +      -       -      +
    383A  THR*     4.7     1.6    -      -       -      +
    385A  THR*     1.3    76.0    -      -       +      +
    387A  ASN*     1.3    56.9    +      -       -      +
    388A  ILE      3.2     0.2    -      -       -      -
    389A  MET*     3.8    11.2    -      -       +      -
    390A  LYS*     2.8    59.3    +      -       +      +
    411A  GLY*     5.8     8.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 387 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383A  THR*     3.3    21.6    +      -       -      +
    384A  GLU*     3.4    14.7    -      -       -      +
    386A  ARG*     1.3    80.0    -      -       -      +
    388A  ILE*     1.3    60.3    +      -       -      +
    390A  LYS*     3.6     8.6    -      -       -      +
    391A  THR*     2.9    35.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 388 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375A  TYR*     3.8    46.9    -      -       +      -
    376A  TYR      4.3     4.5    -      -       -      +
    377A  VAL*     3.4    32.3    -      -       +      -
    384A  GLU*     3.0    30.1    -      -       +      +
    385A  THR*     3.4     5.8    +      -       -      +
    386A  ARG      3.2     0.2    -      -       -      -
    387A  ASN*     1.3    74.4    -      -       +      +
    389A  MET*     1.3    59.8    +      -       +      +
    390A  LYS      2.9     4.5    -      -       -      -
    391A  THR*     2.8    29.3    +      -       -      -
    392A  LEU*     3.0    15.1    +      -       +      +
    399A  ILE*     5.3     3.4    -      -       +      -
    401A  ILE*     4.9    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 389 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351A  PHE*     4.2    19.3    -      -       +      -
    377A  VAL*     5.0     5.2    -      -       +      -
    385A  THR*     3.0    42.3    +      -       +      +
    386A  ARG*     3.3    13.9    +      -       +      +
    388A  ILE*     1.3    78.3    -      -       +      +
    390A  LYS*     1.3    58.2    -      -       +      +
    392A  LEU*     4.1    10.9    -      -       -      +
    393A  ALA*     3.3    22.7    +      -       -      +
    401A  ILE*     6.0     2.7    -      -       +      -
    407A  VAL*     4.4    16.8    -      -       +      -
    408A  PHE*     5.5     1.8    -      -       -      -
    411A  GLY      4.4    15.0    -      -       -      +
    412A  ILE      5.3     0.4    -      -       -      -
    413A  SER*     3.0    32.0    +      -       -      +
    414A  VAL*     3.8    25.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 390 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386A  ARG*     2.8    40.8    +      -       +      +
    387A  ASN*     3.6     7.2    -      -       -      +
    389A  MET*     1.3    80.0    -      -       +      +
    391A  THR*     1.3    57.8    +      -       -      +
    392A  LEU      3.0     2.0    -      -       -      -
    393A  ALA*     3.9     6.0    -      -       +      +
    394A  GLU*     2.9    42.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 391 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375A  TYR*     4.8    15.4    -      -       +      +
    387A  ASN*     2.9    27.6    +      -       -      -
    388A  ILE*     2.8    15.0    +      -       -      -
    390A  LYS*     1.3    78.0    -      -       -      +
    392A  LEU*     1.3    59.3    +      -       -      +
    394A  GLU*     3.8    14.2    -      -       -      +
    396A  GLY*     3.6    18.5    +      -       -      -
    399A  ILE*     4.0    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 392 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349A  ASN*     4.2    17.5    -      -       +      +
    351A  PHE*     4.3    10.8    -      -       +      -
    388A  ILE*     3.0    13.5    +      -       +      +
    389A  MET*     4.3     9.9    -      -       -      +
    391A  THR*     1.3    75.2    -      -       -      +
    393A  ALA*     1.3    67.4    +      -       -      +
    394A  GLU      3.1     2.8    +      -       -      -
    395A  ASN*     3.4     5.9    +      -       -      -
    396A  GLY      3.9     2.6    +      -       -      +
    399A  ILE*     4.3    15.3    -      -       +      -
    401A  ILE*     4.5    12.1    -      -       +      -
    414A  VAL*     4.2    18.6    -      -       +      -
    415A  LYS      3.5    13.5    -      -       -      +
    416A  ASN*     3.0    56.4    +      -       -      +
    417A  LEU*     4.1    14.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 393 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389A  MET      3.3    18.2    +      -       -      +
    390A  LYS*     3.3     9.8    +      -       +      +
    392A  LEU*     1.3    80.5    -      -       -      +
    394A  GLU*     1.3    66.9    +      -       -      +
    413A  SER*     5.4     3.8    -      -       -      +
    415A  LYS*     3.6    52.5    +      -       +      +
    416A  ASN*     4.0     4.6    +      -       -      -
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Residues in contact with GLU 394 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390A  LYS*     2.9    28.4    +      -       -      +
    391A  THR*     3.8    11.8    -      -       -      +
    392A  LEU      3.1     0.8    +      -       -      -
    393A  ALA*     1.3    82.8    -      -       -      +
    395A  ASN*     1.3    69.7    +      -       +      +
    416A  ASN*     4.0     2.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 395 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392A  LEU      3.4     0.6    +      -       -      -
    394A  GLU*     1.3    85.4    -      -       -      +
    396A  GLY*     1.3    64.9    +      -       -      +
    397A  LYS*     2.9    30.3    +      -       -      +
    416A  ASN*     3.3    15.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 396 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349A  ASN*     3.2    25.6    +      -       -      +
    373A  LYS*     5.8     0.9    -      -       -      -
    391A  THR*     3.6    11.2    +      -       -      -
    392A  LEU      3.9     2.9    +      -       -      +
    395A  ASN*     1.3    78.7    -      -       -      +
    397A  LYS*     1.3    66.9    +      -       -      +
    399A  ILE*     3.8    19.8    -      -       -      +
    416A  ASN*     4.6     0.5    +      -       -      -
----------------------------------------------------------
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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