Contacts of the helix formed by residues 220 - 230 (chain C) in PDB entry 5FL6


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 220 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149C  GLU*     4.2     0.7    -      -       -      -
    150C  GLY      3.5    10.3    -      -       -      -
    151C  PRO      5.0     3.1    -      -       -      -
    152C  GLU      3.4    21.2    +      -       -      -
    153C  GLU*     4.1     8.1    +      -       -      +
    219C  LEU*     1.3    76.9    -      -       -      +
    221C  ALA*     1.3    64.7    +      -       -      +
    222C  LYS*     3.5     9.7    +      -       -      +
    223C  GLN*     3.0    37.4    +      -       -      +
    224C  LEU*     3.1    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 221 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149C  GLU*     3.7    35.0    -      -       -      +
    150C  GLY      4.3     1.4    +      -       -      -
    220C  SER*     1.3    74.6    -      -       -      +
    222C  LYS*     1.3    62.1    +      -       -      +
    224C  LEU*     3.4     5.7    +      -       -      +
    225C  HIS*     3.0    24.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 222 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153C  GLU*     5.9     2.0    -      -       -      +
    220C  SER*     3.2     9.5    +      -       -      +
    221C  ALA*     1.3    78.0    -      -       -      +
    223C  GLN*     1.3    58.9    +      -       +      +
    225C  HIS*     3.3     7.1    +      -       -      +
    226C  THR*     2.8    35.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 223 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153C  GLU*     3.4    12.3    -      -       +      +
    154C  ASN*     2.8    54.6    +      -       -      +
    158C  GLU*     3.2    32.3    +      -       -      +
    161C  LEU*     3.5    25.2    -      -       +      +
    219C  LEU*     3.6     8.5    -      -       +      -
    220C  SER*     3.0    34.6    +      -       -      +
    222C  LYS*     1.3    78.0    -      -       +      +
    224C  LEU*     1.3    57.0    +      -       -      +
    226C  THR*     3.2     8.2    +      -       -      -
    227C  LEU*     3.0    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 224 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  PRO*     3.8    31.9    -      -       +      +
    116C  ALA*     4.4    17.3    -      -       +      -
    147C  LEU*     4.7     4.7    -      -       +      -
    148C  GLU      4.2     1.6    -      -       -      +
    149C  GLU*     3.9    37.2    -      -       +      +
    219C  LEU*     3.9    25.4    -      -       +      -
    220C  SER      3.1    15.9    +      -       -      +
    221C  ALA*     3.8     4.9    -      -       -      +
    223C  GLN*     1.3    72.3    -      -       -      +
    225C  HIS*     1.3    65.3    +      -       -      +
    227C  LEU*     3.3     9.9    +      -       +      +
    228C  SER*     3.1    25.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 225 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  ALA*     5.2    17.1    -      -       +      +
    221C  ALA      3.0    14.5    +      -       -      +
    222C  LYS*     3.5    11.4    -      -       -      +
    224C  LEU*     1.3    76.1    -      -       -      +
    226C  THR*     1.3    58.6    +      -       -      +
    228C  SER*     3.2     8.1    +      -       -      -
    229C  ASP*     2.9    70.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 226 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161C  LEU*     3.5    34.5    -      -       +      +
    162C  SER*     5.7     0.2    -      -       -      -
    164C  LEU*     3.9     4.9    -      -       +      +
    222C  LYS*     2.8    20.5    +      -       -      +
    223C  GLN*     3.2    11.9    +      -       -      -
    225C  HIS*     1.3    75.3    +      -       -      +
    227C  LEU*     1.3    62.6    +      -       -      +
    229C  ASP*     5.0     0.9    -      -       -      -
    230C  THR*     2.6    41.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 227 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  VAL*     4.6     1.6    -      -       +      -
     95C  LEU*     3.6    32.3    -      -       +      -
     97C  TRP*     3.6    46.3    -      -       +      -
    116C  ALA*     4.0    27.6    -      -       +      -
    147C  LEU*     4.6     9.0    -      -       +      -
    161C  LEU*     3.8    16.6    -      -       +      -
    164C  LEU*     4.0    17.7    -      -       +      +
    219C  LEU*     5.1     2.0    -      -       +      -
    223C  GLN      3.0    12.8    +      -       -      +
    224C  LEU*     3.5    16.6    -      -       +      +
    225C  HIS      3.2     0.4    -      -       -      -
    226C  THR*     1.3    78.7    -      -       -      +
    228C  SER*     1.3    60.1    +      -       -      +
    229C  ASP      3.7     0.2    +      -       -      -
    230C  THR      4.4     2.3    +      -       -      -
    231C  LEU*     4.8     4.0    +      -       -      +
    239C  LEU      5.0     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 228 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  TRP*     3.6    24.2    -      -       -      -
     98C  GLY      3.9    13.5    -      -       -      -
     99C  ALA*     4.1    16.8    -      -       -      -
    100C  ALA*     4.6     2.4    +      -       -      -
    224C  LEU      3.1    15.8    +      -       -      -
    225C  HIS*     3.3    12.5    +      -       -      -
    227C  LEU*     1.3    76.5    -      -       -      +
    229C  ASP*     1.3    59.4    +      -       -      +
    230C  THR      3.7     0.7    -      -       -      -
    231C  LEU      5.2     1.2    -      -       -      +
    238C  ARG*     5.1     0.3    -      -       -      -
    239C  LEU      3.9     4.2    -      -       -      +
    240C  GLN*     3.0    31.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 229 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  HIS*     2.9    51.3    +      -       +      +
    226C  THR*     5.0     1.1    -      -       -      -
    227C  LEU      3.4     0.2    -      -       -      -
    228C  SER*     1.3    80.2    -      -       -      +
    230C  THR*     1.3    59.0    +      -       -      +
    231C  LEU      3.8     0.7    -      -       -      -
    232C  TRP*     5.1     0.5    +      -       -      -
    238C  ARG*     2.7    51.1    +      -       -      +
    240C  GLN*     4.5     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 230 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164C  LEU*     3.5    20.2    -      -       +      +
    165C  GLU*     3.5    36.8    -      -       +      +
    168C  ALA*     3.4    17.6    -      -       +      +
    226C  THR*     2.6    36.8    +      -       +      +
    227C  LEU      4.4     0.6    +      -       -      -
    228C  SER      3.7     0.2    -      -       -      -
    229C  ASP*     1.3    80.9    -      -       -      +
    231C  LEU*     1.3    62.6    +      -       +      +
    232C  TRP*     3.6     9.1    +      -       -      -
----------------------------------------------------------
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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