Contacts of the helix formed by residues 356 - 376 (chain L) in PDB entry 4E2I


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 THR 356 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    354L  GLN      3.5     4.9    +      -       -      +
    355L  LEU*     1.3    77.4    -      -       -      +
    357L  ARG*     1.3    64.4    +      -       -      +
    358L  GLU*     3.0    10.2    +      -       -      +
    359L  GLN*     3.0    45.4    +      -       -      +
    360L  MET*     3.1     9.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 357 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    356L  THR*     1.3    73.0    -      -       -      +
    358L  GLU*     1.3    59.0    +      -       -      +
    360L  MET*     3.5    24.0    +      -       +      +
    361L  LEU*     3.6    14.0    +      -       -      +
    412L  MET      2.8    23.8    +      -       -      -
    413L  VAL*     3.7    19.0    -      -       +      +
    415L  ASN*     3.7    32.6    +      -       -      +
    467L  GLN      4.8     3.6    +      -       -      -
    468L  PHE*     3.0    75.7    +      -       +      +
    522L  PRO*     5.5     2.4    -      -       -      +
    523L  PRO*     3.5    20.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 358 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    356L  THR*     3.0     9.0    +      -       -      +
    357L  ARG*     1.3    78.6    -      -       -      +
    359L  GLN*     1.3    55.7    +      -       +      +
    360L  MET      3.3     0.2    -      -       -      -
    361L  LEU*     3.4     6.8    +      -       +      +
    362L  THR*     2.7    35.9    +      -       -      +
    410L  LYS*     3.3    26.6    +      -       -      +
    413L  VAL*     3.5    29.9    -      -       +      +
    587L  GLU      5.1     1.4    -      -       -      +
    588L  PHE      5.4     0.5    -      -       -      -
    589L  ALA*     4.9    15.5    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 359 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309G  GLU*     5.1     9.0    +      -       -      +
    354L  GLN      4.6     1.0    -      -       -      +
    355L  LEU*     3.4    30.3    -      -       +      +
    356L  THR*     3.0    40.1    +      -       -      +
    358L  GLU*     1.3    77.3    -      -       +      +
    360L  MET*     1.3    63.7    +      -       -      +
    362L  THR*     3.0    21.3    +      -       -      +
    363L  ASN*     2.8    21.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 360 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351L  ASP*     4.0    17.7    -      -       +      +
    352L  SER*     4.2    20.0    -      -       -      +
    355L  LEU*     3.8    25.8    -      -       +      +
    356L  THR      3.1    12.5    +      -       -      +
    357L  ARG*     3.5    51.8    -      -       +      +
    358L  GLU      3.3     0.2    -      -       -      -
    359L  GLN*     1.3    76.8    -      -       -      +
    361L  LEU*     1.3    61.4    +      -       -      +
    363L  ASN*     3.5    12.7    +      -       -      +
    364L  ARG*     3.3    18.2    +      -       -      +
    443L  CYS      5.4     0.6    -      -       -      +
    466L  ASP      5.9     1.6    -      -       -      +
    467L  GLN      5.6     5.2    -      -       -      +
    468L  PHE*     4.5    14.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 361 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357L  ARG      3.6     2.9    +      -       -      +
    358L  GLU*     3.4     9.1    +      -       +      +
    359L  GLN      3.1     0.4    -      -       -      -
    360L  MET*     1.3    77.9    -      -       -      +
    362L  THR*     1.3    56.4    +      -       -      +
    364L  ARG*     2.9     3.9    +      -       -      +
    365L  PHE*     2.8    54.7    +      -       +      -
    409L  LEU*     4.2    18.8    -      -       +      +
    413L  VAL*     3.5    32.1    -      -       +      -
    443L  CYS*     3.7    32.1    -      -       +      +
    468L  PHE*     3.5    39.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 362 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    358L  GLU*     2.7    23.1    +      -       -      +
    359L  GLN*     3.1    16.8    -      -       -      +
    361L  LEU*     1.3    77.6    -      -       -      +
    363L  ASN*     1.3    59.8    +      -       -      +
    365L  PHE*     3.5     7.4    +      -       -      +
    366L  ASN*     2.7    43.1    +      -       -      +
    589L  ALA*     3.6    25.3    -      -       +      +
    591L  SER*     3.6    24.0    -      -       -      +
    592L  ILE*     4.1     8.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 363 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    281L  LYS*     5.7     3.6    -      -       -      +
    355L  LEU*     3.6    28.3    -      -       -      +
    359L  GLN*     2.8    23.6    +      -       -      +
    360L  MET*     3.7     7.9    -      -       -      +
    361L  LEU      3.1     0.2    -      -       -      -
    362L  THR*     1.3    76.0    -      -       -      +
    364L  ARG*     1.3    61.7    +      -       -      +
    366L  ASN*     3.3    10.3    +      -       -      +
    367L  ASP*     2.7    37.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 364 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360L  MET      3.3    10.3    +      -       -      +
    361L  LEU*     2.9    11.1    +      -       -      +
    363L  ASN*     1.3    79.3    -      -       -      +
    365L  PHE*     1.3    63.0    +      -       -      +
    367L  ASP*     3.0    14.9    +      -       -      +
    368L  LEU*     2.9    41.1    +      -       +      +
    371L  ARG*     4.0    18.7    -      -       -      +
    441L  GLU*     2.8    49.7    +      -       -      +
    442L  LEU      3.5    15.3    -      -       -      +
    443L  CYS      3.2    27.7    +      -       -      +
    444L  GLY*     4.2     9.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 365 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361L  LEU*     2.8    54.7    +      -       +      +
    362L  THR*     3.8     2.5    -      -       -      +
    364L  ARG*     1.3    73.9    -      -       +      +
    366L  ASN*     1.3    61.2    +      -       -      +
    368L  LEU*     3.5    10.5    +      -       +      +
    369L  LEU*     3.3    27.0    +      -       -      +
    409L  LEU*     3.9    27.8    -      -       +      -
    442L  LEU*     3.9    22.7    -      -       +      -
    576L  LEU*     3.5    22.5    -      -       +      +
    579L  LEU*     3.5    27.4    -      -       +      -
    588L  PHE*     4.2    24.9    -      +       -      -
    592L  ILE*     3.7    19.3    -      -       +      -
    596L  ILE*     5.6     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 366 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362L  THR*     2.7    32.9    +      -       -      +
    363L  ASN*     3.3    11.9    +      -       -      +
    364L  ARG      3.1     0.8    -      -       -      -
    365L  PHE*     1.3    77.1    -      -       -      +
    367L  ASP*     1.3    57.1    +      -       -      +
    368L  LEU      3.2     0.2    -      -       -      -
    369L  LEU*     3.1     2.2    +      -       -      -
    370L  ASP*     2.7    37.1    +      -       -      +
    591L  SER      5.4     2.2    +      -       -      +
    592L  ILE*     3.4    28.1    -      -       -      +
    595L  ARG*     3.2    32.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 367 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    281L  LYS*     3.6    26.3    +      -       -      -
    363L  ASN*     2.7    27.0    +      -       -      +
    364L  ARG*     3.0    19.4    +      -       -      +
    366L  ASN*     1.3    76.7    -      -       -      +
    368L  LEU*     1.3    62.6    +      -       +      +
    370L  ASP*     3.1    26.3    +      -       -      +
    371L  ARG*     3.5    20.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 368 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364L  ARG*     2.9    37.7    +      -       +      +
    365L  PHE*     3.7    11.0    -      -       -      +
    366L  ASN      3.2     0.2    -      -       -      -
    367L  ASP*     1.3    77.1    -      -       -      +
    369L  LEU*     1.3    59.7    +      -       -      +
    371L  ARG*     3.7    12.4    +      -       -      +
    372L  MET*     3.1    23.4    +      -       -      +
    441L  GLU*     3.7    22.0    -      -       +      +
    442L  LEU*     3.5    42.0    -      -       +      +
    572L  GLY      4.6     2.7    -      -       -      +
    573L  ILE*     3.3    29.8    -      -       +      +
    576L  LEU*     3.5    20.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 369 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    365L  PHE      3.3    18.1    +      -       -      +
    366L  ASN*     3.1     2.8    +      -       -      +
    368L  LEU*     1.3    77.2    -      -       -      +
    370L  ASP*     1.3    57.9    +      -       -      +
    371L  ARG      3.2     0.4    -      -       -      -
    372L  MET*     3.1    27.0    +      -       -      +
    373L  ASP*     2.8    33.5    +      -       -      +
    576L  LEU*     3.5    12.1    -      -       +      -
    580L  ILE*     3.9    17.0    -      -       +      -
    592L  ILE*     4.5     9.6    -      -       +      -
    595L  ARG*     3.2    50.5    -      -       +      +
    596L  ILE*     4.8     9.9    -      -       +      -
    599L  TRP*     3.8    20.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 370 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366L  ASN*     2.7    24.9    +      -       -      +
    367L  ASP*     3.1    25.6    +      -       -      +
    369L  LEU*     1.3    77.4    -      -       -      +
    371L  ARG*     1.3    63.4    +      -       +      +
    373L  ASP*     3.3    10.8    +      -       -      +
    374L  ILE*     3.2    26.6    +      -       +      +
    595L  ARG*     3.2    17.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 371 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364L  ARG*     4.0    24.9    -      -       -      +
    367L  ASP*     3.5    20.1    +      -       -      +
    368L  LEU*     3.8    15.8    -      -       -      +
    369L  LEU      3.2     0.2    -      -       -      -
    370L  ASP*     1.3    76.2    -      -       +      +
    372L  MET*     1.3    57.8    +      -       -      +
    374L  ILE*     3.1    12.7    +      -       -      +
    375L  MET*     2.9    41.6    +      -       -      +
    441L  GLU*     3.4    29.3    +      -       -      +
    573L  ILE*     4.1    17.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 372 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368L  LEU      3.1    11.9    -      -       -      +
    369L  LEU*     3.1    33.1    +      -       +      +
    371L  ARG*     1.3    72.6    -      -       -      +
    373L  ASP*     1.3    57.3    +      -       -      +
    374L  ILE      3.0     4.9    -      -       -      -
    375L  MET*     3.4     9.6    -      -       -      -
    376L  PHE*     2.8    59.4    +      -       +      +
    573L  ILE*     3.5    20.2    -      -       +      -
    576L  LEU*     3.5    17.9    -      -       +      -
    577L  LEU*     3.4    39.5    -      -       +      -
    580L  ILE*     5.5     0.9    -      -       +      -
    599L  TRP*     3.6    18.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 373 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369L  LEU      2.8    21.5    +      -       -      +
    370L  ASP*     3.3    10.1    +      -       -      +
    372L  MET*     1.3    75.4    -      -       -      +
    374L  ILE*     1.3    61.1    +      -       +      +
    376L  PHE*     4.6     0.8    -      -       -      -
    377L  GLY*     4.0    14.2    -      -       -      -
    595L  ARG*     2.8    24.6    +      -       -      -
    599L  TRP*     3.2    24.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 374 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311L  PRO*     3.7    31.4    -      -       +      -
    314L  TYR*     4.3    11.7    -      -       -      +
    315L  LYS*     5.4     7.4    -      -       +      +
    370L  ASP*     3.2    21.8    -      -       +      +
    371L  ARG*     3.1     8.9    +      -       -      +
    372L  MET      3.0     0.6    -      -       -      -
    373L  ASP*     1.3    81.8    -      -       +      +
    375L  MET*     1.3    63.8    +      -       -      +
    376L  PHE      3.3     0.7    -      -       -      -
    377L  GLY*     3.2     7.5    +      -       -      -
    379L  THR*     3.5    27.4    +      -       -      +
    380L  GLY*     3.1    24.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 375 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371L  ARG*     2.9    30.0    +      -       -      +
    372L  MET*     3.4    18.8    -      -       -      +
    374L  ILE*     1.3    78.2    -      -       -      +
    376L  PHE*     1.3    86.6    +      -       +      +
    377L  GLY      3.2     2.0    +      -       -      +
    380L  GLY*     3.3    18.3    -      -       -      -
    381L  SER      5.1     0.4    -      -       -      +
    382L  ALA*     3.3    43.9    +      -       +      +
    387L  TRP*     3.5    39.3    -      -       +      -
    573L  ILE*     4.4     7.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 376 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    372L  MET*     2.8    61.3    +      -       +      +
    373L  ASP*     4.6     1.3    -      -       -      -
    375L  MET*     1.3   101.9    -      -       +      +
    377L  GLY*     1.3    59.5    +      -       -      +
    382L  ALA*     3.8    13.9    -      -       +      -
    383L  ASP      4.0     1.3    -      -       -      -
    384L  ILE*     3.4    53.2    -      -       +      -
    387L  TRP*     3.8    26.2    -      +       +      -
    573L  ILE*     4.7     0.7    -      -       +      -
    577L  LEU*     4.6     0.4    -      -       +      -
    599L  TRP*     3.9    17.3    -      +       +      -
    602L  ARG*     3.5    30.2    +      -       -      +
----------------------------------------------------------
 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