Contacts of the helix formed by residues 366 - 384 (chain F) in PDB entry 2CEA


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 VAL 366 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202F  PRO*     5.0     4.5    -      -       +      -
    203F  PRO      3.4    20.6    -      -       -      +
    204F  GLY*     3.0    22.9    -      -       -      +
    205F  THR*     4.4    10.8    -      -       +      +
    330F  PRO*     4.5    17.5    -      -       +      -
    331F  PRO*     4.6     7.0    -      -       +      -
    364F  GLY      3.7    10.1    -      -       -      +
    365F  PHE*     1.3    77.9    -      -       -      +
    367F  GLY*     1.3    67.3    +      -       -      +
    368F  ALA*     3.8     4.5    -      -       +      +
    369F  ASP*     2.7    33.0    +      -       -      +
    370F  LEU*     3.0    11.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 367 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204F  GLY      2.8    12.1    +      -       -      -
    205F  THR*     4.5     3.0    -      -       -      +
    331F  PRO*     4.8     3.2    -      -       -      +
    339F  ILE*     3.5    33.8    -      -       -      +
    366F  VAL*     1.3    68.7    -      -       -      +
    368F  ALA*     1.3    63.4    +      -       -      -
    370F  LEU*     2.7    16.6    +      -       -      +
    371F  GLU*     2.9    12.6    +      -       -      +
   1607F  ADP      3.6    17.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 368 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204F  GLY*     2.8    33.8    +      -       -      -
    366F  VAL*     4.1     3.6    -      -       +      -
    367F  GLY*     1.3    71.0    -      -       -      +
    369F  ASP*     1.3    61.7    +      -       -      +
    371F  GLU*     3.2     5.4    +      -       -      +
    372F  ASN*     3.0    27.9    +      -       -      +
   1607F  ADP      3.1    30.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 369 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364F  GLY      4.9     0.9    -      -       -      +
    365F  PHE*     3.3    33.7    -      -       +      -
    366F  VAL*     2.7    37.8    +      -       -      +
    368F  ALA*     1.3    77.4    -      -       -      +
    370F  LEU*     1.3    55.0    +      -       -      +
    372F  ASN*     3.8     6.9    -      -       -      +
    373F  LEU*     3.1    27.4    +      -       -      +
    401F  VAL*     4.9    12.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 370 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336F  ARG*     3.2    41.3    -      -       +      +
    339F  ILE*     3.3    34.3    -      -       +      -
    340F  LEU*     4.0    29.2    -      -       +      +
    343F  HIS*     5.5     0.7    -      -       -      -
    358F  ILE*     5.6     0.2    -      -       +      -
    362F  THR*     4.3    18.8    -      -       +      +
    365F  PHE*     4.2    20.6    -      -       +      -
    366F  VAL      3.0    12.3    +      -       -      +
    367F  GLY*     2.7     9.4    +      -       -      +
    369F  ASP*     1.3    76.5    -      -       -      +
    371F  GLU*     1.3    59.7    +      -       -      +
    373F  LEU*     3.2     7.5    +      -       +      +
    374F  VAL*     2.9    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 371 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    343F  HIS*     3.3    40.0    -      -       +      +
    367F  GLY      2.9     9.4    +      -       -      +
    368F  ALA*     3.6     7.6    -      -       -      +
    370F  LEU*     1.3    76.5    -      -       -      +
    372F  ASN*     1.3    59.2    +      -       -      +
    374F  VAL*     2.6    32.3    -      -       +      +
    375F  ASN*     3.1     7.6    +      -       +      +
   1607F  ADP      3.1    39.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 372 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368F  ALA      3.0    16.6    +      -       -      +
    369F  ASP*     3.8     8.7    -      -       -      +
    371F  GLU*     1.3    78.8    -      -       -      +
    373F  LEU*     1.3    54.2    +      -       -      +
    375F  ASN*     2.9    14.0    +      -       -      +
    376F  GLU*     2.8    61.2    +      -       -      +
    401F  VAL*     4.5    18.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 373 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340F  LEU*     5.4     3.6    -      -       +      -
    358F  ILE*     4.4    17.3    -      -       +      -
    362F  THR*     4.8     3.1    -      -       +      -
    365F  PHE*     3.2    36.1    -      -       +      -
    369F  ASP      3.1    11.8    +      -       -      +
    370F  LEU*     3.5     9.4    -      -       +      +
    372F  ASN*     1.3    77.0    -      -       -      +
    374F  VAL*     1.3    63.0    +      -       -      +
    376F  GLU*     3.3     7.5    +      -       -      -
    377F  ALA*     3.0    21.7    +      -       -      +
    394F  PHE*     4.3    11.9    -      -       +      +
    397F  ALA*     3.6    12.7    -      -       +      +
    398F  ILE*     3.4    42.6    -      -       +      +
    401F  VAL*     3.4    19.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 374 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340F  LEU*     4.8     8.7    -      -       +      +
    343F  HIS*     3.6    35.4    -      -       +      +
    344F  THR*     4.8     7.9    -      -       -      +
    347F  LYS*     5.3    13.2    -      -       +      -
    370F  LEU      2.9    12.7    +      -       -      +
    371F  GLU*     2.6    26.5    -      -       +      +
    373F  LEU*     1.3    77.8    -      -       -      +
    375F  ASN*     1.3    79.3    +      -       +      +
    377F  ALA*     3.0    14.7    +      -       -      +
    378F  ALA*     3.1    12.5    +      -       -      +
    389F  ILE*     5.0     4.1    -      -       +      +
    394F  PHE*     4.2    26.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 375 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347F  LYS*     6.3     1.6    -      -       -      +
    371F  GLU*     3.6    10.1    -      -       +      +
    372F  ASN*     2.9    16.2    +      -       -      +
    374F  VAL*     1.3    85.5    -      -       +      +
    376F  GLU*     1.3    63.1    +      -       -      +
    378F  ALA*     3.1    12.4    +      -       -      +
    379F  LEU*     2.9    45.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 376 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    372F  ASN*     2.8    48.7    +      -       -      +
    373F  LEU*     3.6     8.5    -      -       -      +
    374F  VAL      3.2     0.2    -      -       -      -
    375F  ASN*     1.3    73.0    -      -       -      +
    377F  ALA*     1.3    65.4    +      -       -      +
    379F  LEU*     3.3    28.5    +      -       -      +
    380F  LEU*     3.2    27.4    +      -       -      +
    397F  ALA*     4.0    15.0    -      -       +      -
    400F  ARG*     3.4    32.4    +      -       +      +
    401F  VAL*     5.0     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 377 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373F  LEU      3.0    11.1    +      -       -      +
    374F  VAL      3.0    11.4    +      -       -      +
    376F  GLU*     1.3    78.0    -      -       -      +
    378F  ALA*     1.3    61.3    +      -       -      +
    380F  LEU*     3.1     7.0    +      -       -      +
    381F  ALA*     3.1    18.9    +      -       -      +
    389F  ILE*     3.7    21.8    -      -       +      -
    393F  ASP*     3.8    11.2    -      -       -      +
    394F  PHE*     3.9    31.0    -      -       +      +
    397F  ALA*     3.9     6.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 378 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347F  LYS*     5.5    12.8    -      -       +      +
    374F  VAL      3.1    10.6    +      -       -      +
    375F  ASN*     3.4    17.3    -      -       -      +
    377F  ALA*     1.3    76.8    -      -       -      +
    379F  LEU*     1.3    56.5    +      -       -      +
    381F  ALA*     3.1     3.6    +      -       -      +
    382F  ALA*     2.8    32.1    +      -       -      +
    389F  ILE*     3.8    25.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 379 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375F  ASN*     2.9    29.3    +      -       -      +
    376F  GLU*     3.3    46.2    -      -       -      +
    378F  ALA*     1.3    75.3    -      -       -      +
    380F  LEU*     1.3    61.5    +      -       +      +
    382F  ALA*     3.8     5.8    -      -       -      +
    383F  ARG*     2.9    31.4    +      -       -      +
    400F  ARG*     5.7     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 380 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    376F  GLU      3.2    13.0    +      -       -      +
    377F  ALA      3.1     6.5    +      -       -      +
    379F  LEU*     1.3    78.6    -      -       +      +
    381F  ALA*     1.3    67.3    +      -       -      +
    383F  ARG*     3.5    29.0    +      -       -      +
    384F  GLU*     3.4    25.6    +      -       -      +
    393F  ASP*     3.4    36.9    -      -       -      +
    396F  GLU*     3.8    31.0    -      -       +      +
    397F  ALA*     4.5     5.6    -      -       -      +
    400F  ARG*     4.2    26.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 381 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377F  ALA      3.1    10.0    +      -       -      +
    378F  ALA*     3.1     8.4    +      -       -      +
    380F  LEU*     1.3    79.7    -      -       -      +
    382F  ALA*     1.3    60.8    +      -       -      +
    384F  GLU*     3.4     1.6    +      -       -      -
    385F  GLY      3.2     3.5    +      -       -      -
    386F  ARG*     2.9    59.6    +      -       -      +
    387F  ASP      5.9     0.2    -      -       -      -
    388F  LYS      4.1     8.1    -      -       -      +
    389F  ILE*     4.0    22.9    -      -       +      -
    393F  ASP*     3.6     1.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 382 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378F  ALA      2.8    21.4    +      -       -      +
    379F  LEU*     3.8     6.1    -      -       -      +
    381F  ALA*     1.3    71.6    -      -       -      +
    383F  ARG*     1.3    58.4    +      -       -      +
    385F  GLY*     2.7    24.8    +      -       -      +
    386F  ARG      4.7     5.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 383 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379F  LEU      2.9    21.9    +      -       -      +
    380F  LEU*     3.9    23.5    +      -       -      +
    381F  ALA      3.4     0.2    -      -       -      -
    382F  ALA*     1.3    73.4    -      -       -      +
    384F  GLU*     1.3    65.7    +      -       +      +
    385F  GLY      3.5     0.2    +      -       -      -
    400F  ARG*     3.9    22.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 384 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    380F  LEU      3.4    14.4    +      -       -      +
    381F  ALA      3.4     4.4    +      -       -      +
    382F  ALA      3.1     0.8    -      -       -      -
    383F  ARG*     1.3    85.2    -      -       +      +
    385F  GLY*     1.3    62.0    +      -       -      +
    386F  ARG*     3.4    33.0    +      -       +      +
    392F  LYS*     5.0    11.1    +      -       -      -
    393F  ASP*     5.6     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page


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