Contacts of the helix formed by residues 209 - 223 (chain B) in PDB entry 2R5Y


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 209 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207B  ASN      3.7     1.2    +      -       -      -
    208B  PHE*     1.3    79.9    -      -       -      +
    210B  LYS*     1.3    65.4    +      -       -      +
    211B  GLN*     3.8     7.7    +      -       -      +
    212B  ALA*     3.3    23.4    +      -       -      +
    213B  SER*     3.3    19.9    +      -       -      -
    238B  CYS      4.8     3.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 210 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209B  SER*     1.3    76.3    -      -       -      +
    211B  GLN*     1.3    62.2    +      -       -      +
    213B  SER*     3.6     4.9    +      -       -      -
    214B  GLU*     3.2    44.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 211 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209B  SER*     3.2     7.7    +      -       -      +
    210B  LYS*     1.3    78.6    -      -       -      +
    212B  ALA*     1.3    62.3    +      -       -      +
    214B  GLU*     3.4    15.6    +      -       -      +
    215B  ILE*     3.0    52.9    +      -       +      +
    237B  LYS      4.7     8.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 212 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208B  PHE*     4.2    17.3    -      -       +      -
    209B  SER*     3.3    22.0    +      -       -      +
    210B  LYS      3.4     0.2    -      -       -      -
    211B  GLN*     1.3    80.1    -      -       -      +
    213B  SER*     1.3    56.3    +      -       -      +
    215B  ILE*     3.3     4.6    +      -       -      +
    216B  LEU*     3.0    37.7    +      -       +      +
    238B  CYS*     3.6    37.6    -      -       +      +
    240B  ILE*     5.5     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 213 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208B  PHE*     4.3    13.7    +      -       -      +
    209B  SER      3.3    13.6    +      -       -      -
    210B  LYS*     4.0     6.1    -      -       -      -
    211B  GLN      3.3     0.2    -      -       -      -
    212B  ALA*     1.3    76.0    -      -       -      +
    214B  GLU*     1.3    62.7    +      -       -      +
    216B  LEU*     3.9     7.8    -      -       -      +
    217B  ASN*     2.8    44.1    +      -       -      +
    248B  TRP*     5.0     6.9    +      -       -      +
      8C    G      4.4     7.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 214 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  LYS*     3.2    42.6    +      -       +      +
    211B  GLN*     3.7    17.1    -      -       -      +
    212B  ALA      3.3     0.2    -      -       -      -
    213B  SER*     1.3    76.6    -      -       -      +
    215B  ILE*     1.3    60.6    -      -       +      +
    217B  ASN*     4.0     4.3    -      -       -      +
    218B  GLU*     2.9    33.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 215 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211B  GLN*     3.0    45.4    +      -       +      +
    212B  ALA*     3.6     4.9    -      -       -      +
    213B  SER      3.2     0.2    -      -       -      -
    214B  GLU*     1.3    79.9    -      -       +      +
    216B  LEU*     1.3    55.7    +      -       -      +
    218B  GLU*     3.4    10.5    +      -       -      +
    219B  TYR*     2.9    27.4    +      -       -      +
    234B  LEU*     3.9    16.8    -      -       +      -
    237B  LYS*     3.9    46.9    -      -       +      +
    238B  CYS*     3.8    18.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 216 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208B  PHE*     4.4    13.2    -      -       +      -
    212B  ALA*     3.0    24.7    +      -       +      +
    213B  SER*     3.9     3.1    -      -       -      +
    215B  ILE*     1.3    72.2    -      -       -      +
    217B  ASN*     1.3    56.3    +      -       -      +
    219B  TYR*     3.2     5.3    +      -       -      +
    220B  PHE*     2.7    36.9    +      -       -      +
    234B  LEU*     4.4    14.8    -      -       +      -
    238B  CYS*     3.9    19.3    -      -       -      -
    240B  ILE*     4.5     6.7    -      -       +      -
    245B  VAL*     4.6    11.2    -      -       +      -
    248B  TRP*     3.5    53.0    -      -       +      +
    249B  PHE*     4.2    21.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 217 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213B  SER*     2.8    28.8    +      -       -      +
    214B  GLU*     4.0     4.2    -      -       -      +
    216B  LEU*     1.3    77.2    -      -       -      +
    218B  GLU*     1.3    57.9    +      -       -      +
    220B  PHE*     4.1     0.7    -      -       -      -
    221B  TYR*     2.9    50.4    +      -       +      -
    248B  TRP*     3.2    22.8    -      -       -      -
    252B  LYS*     2.9    33.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 218 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214B  GLU      2.9    21.5    +      -       -      +
    215B  ILE*     3.7    11.1    -      -       -      +
    217B  ASN*     1.3    74.1    -      -       -      +
    219B  TYR*     1.3    68.8    +      -       -      +
    221B  TYR*     4.4     2.6    -      -       -      +
    222B  SER*     2.7    38.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215B  ILE      2.9    18.3    +      -       -      +
    216B  LEU      3.7     3.4    -      -       -      +
    218B  GLU*     1.3    82.0    -      -       -      +
    220B  PHE*     1.3    65.8    +      -       -      +
    222B  SER*     3.0     2.2    +      -       -      -
    223B  HIS*     3.0    71.6    +      +       +      -
    224B  PRO*     5.6     1.6    -      -       +      -
    225B  TYR      5.3     0.8    -      -       -      -
    226B  PRO*     3.7    38.1    -      -       +      +
    230B  ALA*     4.0    13.0    -      -       +      +
    234B  LEU*     3.9    28.5    -      -       +      -
    249B  PHE*     3.6    18.6    -      +       +      -
   1225B  ASN      5.8     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  TRP*     4.1    21.3    -      +       -      -
    216B  LEU      2.7    22.1    +      -       -      +
    217B  ASN*     3.6     4.0    -      -       -      +
    219B  TYR*     1.3    78.5    -      -       -      +
    221B  TYR*     1.3    80.7    +      +       -      +
    223B  HIS*     3.0    19.9    +      -       -      +
    224B  PRO*     3.6    26.3    -      -       +      +
    248B  TRP*     3.9    10.3    -      -       +      -
    249B  PHE*     4.0    16.2    -      +       -      -
    252B  LYS*     3.5    45.8    -      -       +      -
    253B  ARG*     4.1    13.0    -      -       +      -
    256B  TYR*     4.2     8.1    -      +       +      -
   1223B  LEU*     3.2    29.6    +      -       +      -
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Residues in contact with TYR 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  LYS*     3.7    18.6    +      -       +      -
    217B  ASN*     2.9    52.4    +      -       +      +
    218B  GLU*     4.4     1.6    -      -       -      +
    220B  PHE*     1.3    88.2    -      +       -      +
    222B  SER*     1.3    64.7    +      -       -      +
    223B  HIS      3.1     0.6    +      -       -      -
    252B  LYS*     3.0    24.7    +      -       -      -
    256B  TYR*     4.0    21.1    -      +       -      -
   1223B  LEU*     3.5    28.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218B  GLU*     2.7    35.0    +      -       -      +
    219B  TYR*     3.5     4.9    -      -       -      -
    221B  TYR*     1.3    78.0    -      -       -      +
    223B  HIS*     1.3    71.0    +      -       -      +
   1223B  LEU      3.5     0.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219B  TYR*     3.0    74.6    +      +       +      +
    220B  PHE      3.0     5.8    +      -       -      +
    222B  SER*     1.3    90.4    -      -       -      +
    224B  PRO*     3.1    12.0    -      -       +      +
   1223B  LEU*     1.3    55.7    +      -       -      -
   1224B  SER*     3.1     7.2    -      -       -      -
   1225B  ASN      2.8    33.5    +      -       -      +
----------------------------------------------------------
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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