Contacts of the helix formed by residues 210 - 215 (chain G) in PDB entry 1PV2


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 PRO 210 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208G  ALA      3.3     7.4    -      -       -      +
    209G  PHE*     1.3   100.9    -      -       +      +
    211G  ASP*     1.3    64.8    +      -       -      +
    212G  ALA*     4.3     3.8    -      -       +      +
    213G  ALA*     3.1    26.4    +      -       +      +
    214G  ASP*     3.4     1.8    +      -       -      +
    242G  ILE*     6.1     1.3    -      -       +      -
    244G  ASN*     4.3     6.5    -      -       -      +
    245G  ASP*     3.8    16.6    -      -       -      +
    246G  ASP*     3.7    35.2    -      -       -      +
    247G  ILE*     3.7    19.3    -      -       +      -
    261G  ASP*     4.6     1.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 211 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209G  PHE      3.4     1.3    +      -       -      +
    210G  PRO*     1.3    72.5    -      -       -      +
    212G  ALA*     1.3    57.5    +      -       -      +
    213G  ALA      3.0     0.2    -      -       -      -
    214G  ASP*     3.0    25.3    +      -       -      +
    215G  LYS*     3.1    28.1    +      -       -      +
    230G  TYR*     3.5    26.1    -      -       +      +
    231G  PHE*     3.6    16.6    -      -       -      -
    232G  GLY*     3.1    24.1    +      -       -      -
    233G  GLU*     2.9    36.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 212 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254F  ASP*     4.1     3.5    -      -       -      +
    255F  ARG*     3.7    40.9    +      -       +      +
    210G  PRO*     3.2     6.1    -      -       +      +
    211G  ASP*     1.3    78.6    -      -       -      +
    213G  ALA*     1.3    56.7    +      -       -      +
    215G  LYS*     3.9    18.3    +      -       +      +
    216G  GLN*     3.3    24.6    +      -       -      +
    245G  ASP      5.6     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 213 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209G  PHE*     3.6    23.1    -      -       +      -
    210G  PRO*     3.1    20.5    +      -       +      +
    211G  ASP      3.0     0.6    -      -       -      -
    212G  ALA*     1.3    77.3    -      -       -      +
    214G  ASP*     1.3    62.7    +      -       -      +
    215G  LYS      3.1     1.8    -      -       -      -
    216G  GLN*     3.2    14.1    +      -       -      +
    217G  THR*     3.2    22.9    +      -       +      +
    247G  ILE*     3.9    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 214 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155G  HIS*     2.9    28.5    +      -       -      -
    186G  HIS*     2.6    28.3    +      -       -      -
    209G  PHE*     3.5    16.9    -      -       -      -
    210G  PRO      3.4     2.9    +      -       -      +
    211G  ASP*     3.0    12.7    +      -       -      +
    213G  ALA*     1.3    78.5    -      -       -      +
    215G  LYS*     1.3    59.9    +      -       -      +
    216G  GLN      3.2     1.2    +      -       -      -
    217G  THR*     3.8     7.9    +      -       -      +
    218G  PRO*     3.5    17.8    -      -       -      +
    223G  MET*     4.6     6.6    -      -       -      +
    226G  HIS*     4.8     0.7    +      -       -      -
    227G  LEU*     3.8    23.9    +      -       +      +
    230G  TYR*     4.2    10.6    +      -       +      -
    231G  PHE*     4.2     7.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 215 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252F  HIS*     5.3     0.3    +      -       -      -
    253F  LYS*     6.2     4.7    -      -       -      +
    211G  ASP*     3.1    33.3    +      -       -      +
    212G  ALA*     3.9    17.0    -      -       +      +
    213G  ALA      3.1     0.4    -      -       -      -
    214G  ASP*     1.3    78.7    -      -       -      +
    216G  GLN*     1.3    71.0    +      -       -      +
    218G  PRO*     4.2     1.8    -      -       -      -
    219G  GLU*     4.2     3.8    -      -       -      +
    226G  HIS*     3.6    24.4    -      -       -      +
    230G  TYR*     3.2    44.3    -      -       +      +
    233G  GLU*     5.2    10.5    +      -       -      +
----------------------------------------------------------
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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