Contacts of the helix formed by residues 340 - 359 (chain B) in PDB entry 1EBF


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 GLY 340 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  VAL*     5.4     1.1    -      -       -      -
    339B  ALA*     1.3    77.9    -      -       -      +
    341B  ALA*     1.3    65.2    -      -       -      -
    342B  ALA      3.4     2.4    +      -       -      -
    343B  VAL*     3.5     4.7    +      -       -      -
    344B  THR*     2.6    33.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 341 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  VAL*     3.4    44.8    -      -       +      +
     16B  VAL*     4.5     9.0    -      -       -      +
     19B  ALA*     3.9     9.1    -      -       +      +
    340B  GLY*     1.3    71.2    -      -       -      +
    342B  ALA*     1.3    59.3    +      -       -      +
    344B  THR*     3.7     1.2    -      -       -      -
    345B  ALA*     2.8    32.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 342 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327A  ARG*     3.9    27.8    -      -       +      +
     19B  ALA*     4.1     5.1    -      -       +      +
     23B  GLN*     3.0    21.7    +      -       -      +
    340B  GLY      3.5     0.4    -      -       -      -
    341B  ALA*     1.3    78.1    -      -       -      +
    343B  VAL*     1.3    59.6    +      -       +      +
    346B  ALA*     2.9    27.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 343 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327A  ARG*     4.0    27.1    -      -       +      +
    328A  TYR*     2.8    57.6    +      -       +      +
    148B  ALA*     4.0     8.5    -      -       +      -
    149B  GLY*     3.5    17.4    +      -       -      +
    337B  ALA*     4.1    11.4    -      -       +      +
    339B  ALA      4.6     6.5    -      -       -      +
    340B  GLY*     3.5     6.8    +      -       -      +
    341B  ALA      3.5     0.4    -      -       -      -
    342B  ALA*     1.3    73.9    -      -       +      +
    344B  THR*     1.3    64.0    +      -       -      +
    346B  ALA*     3.5     7.7    +      -       -      +
    347B  GLY      3.1    15.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 344 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  VAL*     4.0    25.0    -      -       +      +
    115B  PRO*     4.4     9.0    -      -       +      -
    144B  ALA*     3.9    23.4    -      -       +      +
    148B  ALA*     3.8    19.1    -      -       -      +
    149B  GLY      4.4     1.1    -      -       -      +
    339B  ALA*     4.1     1.7    -      -       -      -
    340B  GLY      2.6    33.4    +      -       -      -
    341B  ALA      3.7     2.0    -      -       -      -
    343B  VAL*     1.3    73.6    -      -       -      +
    345B  ALA*     1.3    59.5    +      -       -      +
    347B  GLY*     2.7    22.9    +      -       -      -
    348B  VAL*     3.0    11.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 345 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  VAL*     3.6    14.1    -      -       -      +
     19B  ALA*     3.6     9.9    -      -       +      -
     20B  PHE*     3.3    39.8    -      -       -      +
     23B  GLN*     3.8     4.5    -      -       -      +
    341B  ALA      2.8    17.3    +      -       -      +
    342B  ALA      3.7     2.9    -      -       -      +
    344B  THR*     1.3    77.2    -      -       -      +
    346B  ALA*     1.3    56.6    +      -       -      +
    348B  VAL*     3.2     6.9    +      -       -      +
    349B  LEU*     2.9    30.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 346 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLU*     4.3     4.5    -      -       -      +
    159A  ILE*     4.6    14.9    -      -       +      +
    162A  THR*     3.7    16.5    -      -       +      +
    327A  ARG*     3.3    25.1    -      -       -      +
     23B  GLN*     3.3     9.1    +      -       -      +
    149B  GLY*     5.1     0.2    -      -       -      -
    342B  ALA      2.9    18.8    +      -       -      +
    343B  VAL*     3.6    10.1    -      -       +      +
    344B  THR      3.0     0.2    -      -       -      -
    345B  ALA*     1.3    77.1    -      -       -      +
    347B  GLY*     1.3    57.9    +      -       -      +
    350B  GLY*     2.9    24.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 347 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLU*     4.8     6.0    -      -       -      +
    143B  GLU*     4.3     7.7    -      -       -      +
    144B  ALA*     4.6     5.2    -      -       -      -
    148B  ALA      4.5     3.1    -      -       -      -
    149B  GLY*     3.7    25.5    -      -       -      -
    343B  VAL      3.1     6.7    +      -       -      -
    344B  THR      2.7    14.8    +      -       -      -
    346B  ALA*     1.3    70.0    -      -       -      +
    348B  VAL*     1.3    62.6    +      -       -      -
    350B  GLY*     3.2     3.1    +      -       -      -
    351B  ASP*     3.2    24.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 348 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  VAL*     4.9     0.2    -      -       +      -
     20B  PHE*     4.0    20.0    -      -       +      -
     90B  VAL*     4.8     2.5    -      -       +      -
     92B  ASN*     4.2    12.3    -      -       -      +
    113B  ALA*     4.3    27.4    -      -       +      +
    114B  THR*     4.4     2.5    -      -       -      +
    115B  PRO*     3.4    32.5    -      -       +      -
    144B  ALA*     3.9    11.0    -      -       +      -
    344B  THR      3.0    13.4    +      -       -      +
    345B  ALA*     3.6     9.0    -      -       -      +
    347B  GLY*     1.3    75.1    -      -       -      +
    349B  LEU*     1.3    59.9    +      -       -      +
    351B  ASP*     2.9    13.1    +      -       -      +
    352B  VAL*     2.9    24.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 349 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162A  THR*     3.9    26.0    -      -       +      -
     20B  PHE*     3.8    23.0    -      -       +      +
     23B  GLN*     3.7    42.4    -      -       +      +
     24B  LEU*     3.9    11.2    -      -       +      +
     27B  MET*     4.0    31.0    -      -       +      -
    345B  ALA      2.9    17.4    +      -       -      +
    346B  ALA*     4.5     0.2    -      -       -      -
    348B  VAL*     1.3    76.4    -      -       -      +
    350B  GLY*     1.3    57.2    +      -       -      +
    352B  VAL*     3.0    16.1    +      -       +      +
    353B  ILE*     2.8    36.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 350 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLU*     3.7    31.2    -      -       -      +
    162A  THR*     4.3     0.9    -      -       -      +
    346B  ALA      2.9    18.8    +      -       -      -
    347B  GLY      3.2     3.6    +      -       -      -
    348B  VAL      3.1     0.4    -      -       -      -
    349B  LEU*     1.3    78.1    -      -       -      +
    351B  ASP*     1.3    61.2    +      -       -      +
    353B  ILE*     3.5     8.7    +      -       -      +
    354B  LYS*     3.2    27.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 351 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLU*     5.4     0.2    -      -       -      +
    113B  ALA*     4.1     7.4    -      -       +      -
    114B  THR      5.0     2.4    +      -       -      +
    141B  TYR*     3.5    40.0    -      -       +      +
    142B  HIS      3.8     0.2    -      -       -      -
    143B  GLU*     2.9    47.5    +      -       -      +
    144B  ALA      4.4     1.2    +      -       -      -
    347B  GLY      3.2     5.5    +      -       -      +
    348B  VAL*     2.9    12.3    +      -       -      +
    350B  GLY*     1.3    75.4    -      -       -      +
    352B  VAL*     1.3    65.0    +      -       -      +
    353B  ILE      3.1     1.6    -      -       -      -
    354B  LYS*     3.0    17.6    +      -       -      +
    355B  ILE*     2.9    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 352 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8B  VAL*     4.8     8.7    -      -       +      -
     20B  PHE*     3.9    14.4    -      -       +      -
     24B  LEU*     5.6     0.9    -      -       +      -
     33B  TYR*     3.7    25.8    -      -       +      -
     88B  ILE*     3.7    16.6    -      -       +      +
     90B  VAL*     3.6    30.1    -      -       +      -
    113B  ALA*     3.8    10.7    -      -       +      +
    348B  VAL      2.9    17.6    +      -       -      +
    349B  LEU*     3.0    17.0    +      -       +      +
    351B  ASP*     1.3    75.1    -      -       -      +
    353B  ILE*     1.3    58.2    +      -       -      +
    355B  ILE*     3.5     4.4    +      -       -      -
    356B  ALA*     3.0    26.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 353 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLU*     5.0     4.3    -      -       +      +
    161A  GLN*     3.6    37.9    -      -       +      +
    162A  THR*     4.4     6.5    -      -       +      -
     27B  MET*     3.6    32.8    -      -       +      -
     33B  TYR*     3.4    22.0    -      -       +      +
    349B  LEU*     2.8    27.3    +      -       +      +
    350B  GLY*     3.7     7.4    -      -       -      +
    351B  ASP      3.1     0.2    -      -       -      -
    352B  VAL*     1.3    75.2    -      -       -      +
    354B  LYS*     1.3    68.4    +      -       +      +
    356B  ALA*     3.3     0.9    +      -       -      +
    357B  GLN*     3.0    47.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 354 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  GLU*     2.7    30.5    +      -       -      +
    354A  LYS*     6.3     2.9    -      -       -      -
    141B  TYR*     3.6    35.9    -      -       +      +
    143B  GLU*     5.4     2.0    +      -       -      +
    154B  SER*     4.1    27.5    +      -       -      -
    350B  GLY      3.2     9.6    +      -       -      +
    351B  ASP*     3.0    16.4    +      -       -      +
    353B  ILE*     1.3    79.3    -      -       +      +
    355B  ILE*     1.3    63.5    +      -       -      +
    357B  GLN*     3.3    12.0    +      -       -      +
    358B  ARG*     3.1    23.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 355 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88B  ILE*     3.6    27.8    -      -       +      -
    111B  SER*     3.8    16.6    -      -       -      +
    112B  ILE      3.4    35.2    -      -       -      +
    113B  ALA*     4.2     4.3    -      -       +      -
    139B  PHE*     4.3     6.7    -      -       +      -
    141B  TYR*     3.4    35.9    -      -       +      -
    351B  ASP      2.9    17.9    +      -       -      +
    352B  VAL      3.8     3.8    -      -       -      +
    354B  LYS*     1.3    75.3    -      -       -      +
    356B  ALA*     1.3    62.8    +      -       -      +
    358B  ARG*     2.9     8.5    +      -       -      +
    359B  LEU*     2.9    36.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 356 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  LYS*     2.8    28.8    +      -       -      -
      6B  VAL*     4.1    20.9    -      -       +      +
     31B  ILE*     3.9     8.5    -      -       +      -
     33B  TYR*     3.4    34.1    -      -       +      +
     88B  ILE*     4.3     5.4    -      -       +      -
    352B  VAL      3.0    18.7    +      -       -      +
    353B  ILE      3.3     0.9    +      -       -      +
    355B  ILE*     1.3    76.5    -      -       -      +
    357B  GLN*     1.3    59.0    +      -       -      +
    359B  LEU*     3.3     7.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 357 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  TYR*     4.2     4.9    +      -       -      -
    161A  GLN*     4.7     8.1    +      -       -      +
    354A  LYS      5.5     1.0    -      -       -      +
    357A  GLN      3.4    10.7    -      -       -      +
    358A  ARG*     3.2    69.1    +      -       +      +
      4B  LYS*     3.2    15.9    +      -       -      +
     31B  ILE*     3.9    17.6    -      -       +      +
    353B  ILE*     3.0    35.4    +      -       +      +
    354B  LYS*     3.7    10.3    -      -       -      +
    356B  ALA*     1.3    75.7    -      -       -      +
    358B  ARG*     1.3    58.6    +      -       -      +
    359B  LEU*     3.9     0.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 358 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER*     3.3    22.8    +      -       -      +
     30A  THR*     5.5     5.3    +      -       -      -
     31A  ILE*     5.9     4.0    -      -       -      +
    357A  GLN*     3.2    58.8    +      -       +      +
    139B  PHE*     3.2    49.6    -      -       +      -
    141B  TYR*     2.8    38.5    +      -       -      -
    354B  LYS      3.1    14.9    +      -       -      +
    355B  ILE*     2.9     7.0    +      -       -      +
    357B  GLN*     1.3    76.0    -      -       -      +
    359B  LEU*     1.3    64.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 359 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER*     4.0    14.3    +      -       -      -
    358A  ARG      5.6     0.2    -      -       -      +
      4B  LYS*     2.8    32.5    +      -       -      -
      6B  VAL*     4.5     7.4    -      -       +      -
     86B  PRO*     3.5    42.7    -      -       +      +
     87B  VAL      5.0     0.9    -      -       -      +
     88B  ILE*     4.1    17.3    -      -       +      -
    111B  SER*     4.3     8.3    -      -       -      +
    138B  GLY*     6.0     1.1    -      -       -      -
    139B  PHE*     3.7    23.8    -      -       +      -
    355B  ILE*     2.9    35.5    +      -       +      +
    356B  ALA*     3.3     7.9    +      -       -      +
    357B  GLN      3.9     0.7    -      -       -      +
    358B  ARG*     1.3    82.0    -      -       -      +
----------------------------------------------------------
 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