Contacts of the helix formed by residues 435 - 446 (chain C) in PDB entry 3ER8


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 TYR 435 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279C  THR*     4.5    13.8    -      -       +      +
    320C  HIS*     3.7    13.9    +      +       -      -
    425C  LEU*     3.8    18.8    -      -       +      +
    428C  GLN*     3.8    16.8    -      -       +      -
    429C  MET*     3.9    38.4    -      -       +      -
    432C  SER*     6.2     1.6    -      -       -      -
    433C  GLY      3.1    23.9    +      -       -      -
    434C  GLU*     1.3    76.6    +      -       -      +
    436C  LYS*     1.3   121.1    +      -       +      +
    437C  GLN      3.6     1.8    -      -       -      -
    438C  CYS*     3.3     8.8    +      -       -      +
    439C  LEU*     3.1    28.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 436 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320C  HIS*     3.1    46.3    +      -       +      +
    322C  ILE*     4.9    10.7    -      -       +      +
    434C  GLU*     5.8     2.7    -      -       -      +
    435C  TYR*     1.3   125.1    +      -       +      +
    437C  GLN*     1.3    64.5    +      -       -      +
    439C  LEU*     3.1    20.1    +      -       +      +
    440C  SER*     3.3     4.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 437 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323C  VAL*     5.8     1.2    -      -       -      +
    328C  ARG*     4.6    10.5    -      -       -      +
    351C  TYR*     5.0     6.1    -      -       +      -
    435C  TYR      3.6     0.4    -      -       -      -
    436C  LYS*     1.3    79.7    -      -       -      +
    438C  CYS*     1.3    68.1    +      -       -      +
    440C  SER*     2.8    34.2    +      -       -      -
    441C  ASP*     2.6    42.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 438 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331C  MET*     3.1    22.4    -      -       +      +
    333C  MET*     6.1     1.1    -      -       +      -
    351C  TYR*     3.3    31.9    -      -       +      -
    352C  PHE*     3.9    27.4    -      -       +      -
    421C  CYS*     5.9     1.1    -      -       -      -
    425C  LEU*     3.6    19.5    -      -       +      -
    434C  GLU*     4.4     2.7    -      -       -      -
    435C  TYR*     3.6    14.8    -      -       -      +
    437C  GLN*     1.3    75.3    -      -       -      +
    439C  LEU*     1.3    64.9    +      -       -      +
    441C  ASP      3.1     0.7    +      -       -      -
    442C  LEU*     2.7    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 439 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279C  THR*     3.7    31.4    -      -       +      +
    282C  LEU*     5.8     4.0    -      -       +      -
    283C  LEU*     3.6    35.9    -      -       +      +
    286C  ILE*     6.1     0.9    -      -       +      -
    316C  VAL*     3.8    19.5    -      -       +      -
    320C  HIS*     6.4     0.4    -      -       +      -
    322C  ILE*     4.9     4.3    -      -       +      -
    425C  LEU*     4.0     6.4    -      -       +      +
    429C  MET*     5.7     1.3    -      -       +      -
    435C  TYR*     3.1    19.5    +      -       +      +
    436C  LYS*     3.1    13.0    -      -       +      +
    438C  CYS*     1.3    77.7    -      -       -      +
    440C  SER*     1.3    55.7    +      -       -      +
    442C  LEU*     2.6    33.3    +      -       +      +
    443C  LEU*     2.7    36.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 440 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322C  ILE*     4.3    18.0    -      -       -      +
    323C  VAL*     3.8    23.6    +      -       -      +
    328C  ARG*     4.2     2.1    -      -       -      +
    436C  LYS      3.3     3.6    +      -       -      -
    437C  GLN*     2.8    34.3    +      -       -      -
    439C  LEU*     1.3    76.7    -      -       -      +
    441C  ASP*     1.3    65.3    +      -       -      -
    443C  LEU*     2.9    21.6    +      -       -      +
    444C  ASN*     3.0    22.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 441 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328C  ARG*     3.6    30.2    +      -       -      +
    329C  ASN      3.0    18.2    -      -       -      +
    330C  ASN*     4.6     2.4    -      -       -      +
    331C  MET*     3.0    32.3    -      -       +      +
    351C  TYR*     3.6    14.1    +      -       -      -
    437C  GLN*     2.6    54.8    +      -       -      +
    438C  CYS*     4.1     0.5    +      -       -      -
    440C  SER*     1.3    71.4    +      -       -      +
    442C  LEU*     1.3    52.9    +      -       -      +
    444C  ASN*     3.7     0.7    +      -       -      +
    445C  SER*     2.5    33.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 442 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283C  LEU*     4.6     2.2    -      -       +      -
    286C  ILE*     3.7    31.2    -      -       +      -
    331C  MET*     3.1    14.3    -      -       +      +
    418C  ARG*     3.7    16.0    -      -       -      +
    421C  CYS*     3.8    19.7    -      -       +      -
    422C  ALA*     3.8    27.8    -      -       -      +
    425C  LEU*     4.0    13.5    -      -       +      -
    438C  CYS      2.7    12.0    +      -       -      +
    439C  LEU*     2.6    29.6    +      -       +      +
    441C  ASP*     1.3    70.1    -      -       -      +
    443C  LEU*     1.3    64.6    +      -       +      +
    445C  SER*     3.4     8.1    +      -       -      -
    446C  MET*     3.0    29.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 443 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141C  MET*     2.6    28.1    -      -       +      +
    282C  LEU*     4.5    13.9    -      -       +      -
    286C  ILE*     5.8     1.1    -      -       +      -
    313C  LEU*     3.5    27.6    -      -       +      -
    316C  VAL*     4.1     8.3    -      -       +      -
    322C  ILE*     3.4    32.5    -      -       +      -
    324C  PHE*     3.7    15.9    -      -       +      -
    439C  LEU*     2.7    43.5    +      -       +      +
    440C  SER*     2.9     5.5    +      -       -      +
    442C  LEU*     1.3    73.2    -      -       +      +
    444C  ASN*     1.3    62.4    -      -       -      +
    446C  MET*     2.9    29.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 444 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322C  ILE*     5.3     0.2    -      -       -      +
    323C  VAL*     3.2    27.0    +      -       -      +
    324C  PHE*     3.7     3.4    -      -       -      +
    325C  ASP*     3.5    20.8    -      -       -      +
    326C  GLY      4.3     8.6    -      -       -      +
    328C  ARG*     3.0    46.9    -      -       +      +
    440C  SER*     3.0    13.3    +      -       -      +
    441C  ASP      4.0     0.7    -      -       -      +
    443C  LEU*     1.3    80.7    -      -       -      +
    445C  SER*     1.3    61.4    +      -       -      +
    446C  MET      2.9     1.6    +      -       -      -
    447C  MET*     3.0    44.4    +      -       -      +
    449C  ARG*     5.0     0.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 445 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326C  GLY      5.9     0.2    -      -       -      -
    328C  ARG      4.0     7.5    +      -       -      -
    331C  MET*     2.9    21.7    -      -       -      +
    332C  PRO*     3.4    19.9    -      -       -      +
    418C  ARG*     3.1    19.2    +      -       -      -
    441C  ASP      2.5    23.7    +      -       -      -
    442C  LEU      3.5     8.5    -      -       -      -
    443C  LEU      3.2     0.4    +      -       -      -
    444C  ASN*     1.3    76.0    -      -       -      +
    446C  MET*     1.3    56.0    +      -       -      +
    447C  MET      3.4     0.2    -      -       -      -
    449C  ARG*     2.8    32.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 446 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141C  MET*     3.3    43.2    -      -       +      +
    144C  SER*     3.2    20.8    +      -       -      -
    145C  MET*     6.0     9.4    -      -       +      +
    282C  LEU*     6.1     1.3    -      -       +      -
    286C  ILE*     4.1    17.7    -      -       +      -
    313C  LEU*     4.8     1.1    -      -       +      -
    418C  ARG*     2.8    42.4    -      -       -      +
    442C  LEU*     3.0    23.1    -      -       +      +
    443C  LEU*     2.9    48.8    +      -       +      +
    445C  SER*     1.3    75.8    -      -       -      +
    447C  MET*     1.3    57.0    +      -       -      +
    449C  ARG*     3.9     3.4    -      -       -      -
----------------------------------------------------------
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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