Contacts of the helix formed by residues 515 - 527 (chain A) in PDB entry 5ED1


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 SER 515 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451A  CYS*     3.5    19.2    +      -       -      -
    452A  GLY*     3.6    14.8    -      -       -      -
    481A  ARG*     2.8    22.9    +      -       -      +
    483A  LYS*     3.8    10.5    -      -       -      +
    490A  THR*     4.5     6.1    -      -       -      -
    513A  THR      3.4     1.5    +      -       -      -
    514A  MET*     1.3    78.1    -      -       -      +
    516A  CYS*     1.3    66.3    +      -       -      +
    518A  ASP*     3.1    32.1    +      -       -      +
    519A  LYS*     3.1    18.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 516 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394A  HIS*     3.4    13.2    -      -       -      -
    396A  GLU*     3.3    27.1    -      -       +      +
    397A  ILE*     3.7     9.9    -      -       +      -
    450A  PRO*     3.8    10.5    -      -       +      -
    451A  CYS*     3.4     4.6    -      -       -      -
    483A  LYS*     3.3    18.4    -      -       -      +
    515A  SER*     1.3    72.2    -      -       -      +
    517A  SER*     1.3    66.7    +      -       -      +
    519A  LYS*     3.1     7.0    +      -       -      +
    520A  ILE*     2.9    29.3    +      -       -      +
    802A   ZN      2.3    35.9    -      -       -      -
     12B  8AZ      3.2     4.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 517 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450A  PRO*     2.9    26.8    +      -       -      +
    451A  CYS      2.9    12.1    +      -       -      -
    453A  ASP      3.3    15.9    +      -       -      -
    454A  ALA*     3.1    22.5    +      -       -      +
    515A  SER*     4.0     0.4    -      -       -      -
    516A  CYS*     1.3    77.1    -      -       -      +
    518A  ASP*     1.3    61.3    -      -       -      +
    521A  ALA*     3.0    29.5    +      -       -      +
    559A  ALA*     4.4     1.6    -      -       -      -
    560A  MET*     3.7    19.5    -      -       -      +
    563A  ARG*     3.5     9.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 518 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    453A  ASP      4.8     2.1    +      -       -      -
    479A  GLN      4.4     1.6    -      -       -      +
    480A  LEU*     3.3    27.0    -      -       +      +
    481A  ARG      2.6    37.4    +      -       -      +
    514A  MET*     3.5     7.2    -      -       +      +
    515A  SER*     3.1    16.0    +      -       -      +
    516A  CYS      3.2     0.4    -      -       -      -
    517A  SER*     1.3    79.0    -      -       -      +
    519A  LYS*     1.3    57.9    +      -       -      +
    521A  ALA*     3.4     3.9    +      -       -      +
    522A  ARG*     3.0    22.3    +      -       -      +
    563A  ARG*     3.0    28.0    +      -       -      +
    679A  PHE*     5.0     0.3    -      -       -      -
    687A  TRP*     3.3    21.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 519 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392A  ASP*     3.0    20.7    +      -       -      +
    397A  ILE*     3.6    25.2    -      -       +      +
    483A  LYS*     4.7     0.2    -      -       -      +
    513A  THR*     4.2     0.9    -      -       -      -
    514A  MET*     3.5    32.5    -      -       +      +
    515A  SER      3.1    15.3    +      -       -      +
    516A  CYS      3.1     6.7    +      -       -      +
    518A  ASP*     1.3    77.9    -      -       -      +
    520A  ILE*     1.3    55.7    +      -       -      +
    522A  ARG*     3.1     8.8    -      -       -      +
    523A  TRP*     2.9    41.5    +      -       -      +
    687A  TRP*     4.1    11.4    -      -       +      -
    801A  IHP      2.9    63.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396A  GLU*     4.6     5.4    -      -       +      -
    397A  ILE*     5.6     0.2    -      -       +      -
    444A  LEU*     4.2     9.2    -      -       +      -
    446A  ILE*     3.9    19.1    -      -       +      -
    450A  PRO*     3.8    28.9    -      -       +      -
    516A  CYS*     2.9    22.1    +      -       -      +
    517A  SER      3.9     2.5    -      -       -      +
    519A  LYS*     1.3    72.6    -      -       +      +
    521A  ALA*     1.3    67.4    +      -       -      +
    523A  TRP*     2.9    38.1    +      -       +      +
    524A  ASN*     2.9    23.8    +      -       -      +
    542A  PHE*     5.6     1.6    -      -       +      -
    545A  ILE*     3.8    16.2    -      -       +      -
    560A  MET*     3.5    24.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  SER      3.0    18.3    +      -       -      +
    518A  ASP      3.5     5.8    -      -       -      +
    520A  ILE*     1.3    74.6    -      -       -      +
    522A  ARG*     1.3    59.6    +      -       -      +
    524A  ASN*     2.8    21.5    +      -       -      +
    525A  VAL*     3.2    15.5    +      -       -      +
    559A  ALA      3.5    19.5    -      -       -      +
    560A  MET*     3.7    18.4    -      -       -      +
    563A  ARG*     3.9     6.3    -      -       -      +
    564A  ILE*     4.7     6.0    -      -       +      +
    675A  LEU*     5.0     1.6    -      -       -      -
    679A  PHE*     4.2    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  ASP      3.0    13.9    +      -       -      +
    519A  LYS*     3.1    17.3    -      -       -      +
    521A  ALA*     1.3    75.9    -      -       -      +
    523A  TRP*     1.3    64.9    +      -       +      +
    525A  VAL*     2.9     4.2    +      -       -      +
    526A  VAL*     2.9    41.5    +      -       +      +
    668A  TYR*     4.2     6.8    +      -       -      -
    672A  LYS*     3.6    15.8    -      -       +      +
    675A  LEU*     3.6    30.5    -      -       +      +
    676A  PHE*     4.3    13.3    -      -       -      -
    679A  PHE*     5.5     0.2    -      -       -      -
    687A  TRP*     3.4    40.7    -      -       +      +
    801A  IHP      2.8    63.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396A  GLU*     3.7    26.5    -      -       +      -
    397A  ILE*     4.0    22.0    -      -       +      -
    400A  ARG*     3.3    43.2    -      -       +      +
    444A  LEU*     3.6    24.9    -      -       +      -
    519A  LYS*     2.9    33.5    +      -       +      +
    520A  ILE*     2.9    34.6    +      -       +      +
    522A  ARG*     1.3    87.8    -      -       -      +
    524A  ASN*     1.3    60.6    +      -       -      +
    525A  VAL      3.1     0.7    +      -       -      -
    526A  VAL*     5.6     0.4    -      -       +      -
    527A  GLY*     3.0    40.7    +      -       -      -
    528A  ILE*     3.8    17.4    +      -       +      +
    541A  TYR*     3.4     5.9    -      -       -      -
    542A  PHE*     3.8    23.6    -      +       +      -
    801A  IHP      5.2     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    520A  ILE*     2.9    16.9    +      -       -      +
    521A  ALA      2.8    11.9    +      -       -      +
    523A  TRP*     1.3    77.9    -      -       -      +
    525A  VAL*     1.3    60.6    +      -       -      +
    541A  TYR*     3.8     3.7    -      -       -      -
    542A  PHE*     4.6     8.0    +      -       -      +
    545A  ILE*     4.0    15.4    -      -       -      +
    560A  MET*     3.1    37.3    +      -       -      +
    575A  THR      3.2     1.7    -      -       -      +
    576A  LEU*     3.7     3.0    -      -       +      +
    577A  ASN*     2.8    70.8    +      -       -      +
    579A  PRO*     3.9     8.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 525 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521A  ALA      3.2     8.2    +      -       -      +
    522A  ARG      2.9     8.0    +      -       -      +
    523A  TRP      3.0     0.2    -      -       -      -
    524A  ASN*     1.3    85.4    -      -       -      +
    526A  VAL*     1.3    61.6    +      -       +      +
    527A  GLY      3.3     1.6    -      -       -      -
    541A  TYR*     2.8    21.8    +      -       -      -
    564A  ILE*     4.0     4.7    -      -       +      -
    567A  ILE*     3.7    25.6    -      -       +      -
    570A  LEU*     3.8    20.4    -      -       +      -
    574A  TYR*     3.5     7.1    -      -       -      +
    575A  THR      3.5     6.8    +      -       -      +
    576A  LEU*     3.7    22.2    -      -       +      -
    671A  ALA*     4.4    10.3    -      -       +      +
    675A  LEU*     3.8    24.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 526 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522A  ARG*     2.9    37.7    +      -       +      +
    523A  TRP*     5.6     0.4    -      -       +      -
    525A  VAL*     1.3    77.9    -      -       +      +
    527A  GLY*     1.3    65.4    -      -       -      +
    529A  GLN*     3.1    20.4    +      -       -      -
    539A  PRO*     4.6     0.9    -      -       -      +
    541A  TYR*     4.5     0.7    -      -       -      -
    574A  TYR*     3.3    19.4    -      -       -      -
    668A  TYR*     3.3    35.6    -      -       +      +
    671A  ALA*     3.7    10.5    -      -       +      +
    672A  LYS*     3.5    41.5    -      -       +      +
    675A  LEU*     5.0     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 527 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400A  ARG*     5.6     0.3    +      -       -      -
    523A  TRP*     3.0    33.7    +      -       -      +
    525A  VAL      3.3     2.0    +      -       -      -
    526A  VAL*     1.3    89.5    -      -       -      +
    528A  ILE*     1.3    62.0    +      -       -      -
    529A  GLN*     3.3     8.5    -      -       -      -
    530A  GLY      4.5     2.6    +      -       -      -
    539A  PRO*     5.0     0.7    -      -       -      -
    540A  ILE      3.3    13.5    -      -       -      -
    541A  TYR*     3.7     9.8    -      -       -      -
    668A  TYR*     4.9     0.2    +      -       -      -
----------------------------------------------------------
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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