Contacts of the helix formed by residues 865 - 877 (chain K) in PDB entry 5ANC


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 LEU 865 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    845K  ASN*     3.3    21.8    -      -       +      +
    846K  SER*     4.3     0.2    -      -       -      -
    864K  ASP*     1.3    89.2    +      -       -      +
    866K  GLY*     1.3    64.0    +      -       -      +
    867K  ASN      3.3     3.8    +      -       -      -
    868K  SER*     3.8    16.8    -      -       -      -
    869K  ILE*     3.1    21.5    +      -       +      +
    897K  TRP*     3.9    18.6    -      -       +      -
    899K  LEU*     4.3    10.1    -      -       +      -
    933K  GLY      5.2     2.5    -      -       -      +
    934K  CYS      3.3    24.2    -      -       -      +
    935K  SER*     3.2    25.1    -      -       -      +
    936K  GLU      4.4     0.4    -      -       -      -
    952K  ASP*     3.4    29.2    -      -       +      +
    961K  LEU*     5.6     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 866 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    824K  TRP*     3.8    21.8    -      -       -      -
    849K  THR      4.4     0.9    -      -       -      -
    851K  PRO*     3.8    10.2    -      -       -      +
    864K  ASP*     4.8     0.2    +      -       -      -
    865K  LEU*     1.3    75.6    -      -       -      +
    867K  ASN*     1.3    62.1    +      -       -      +
    869K  ILE*     4.0     1.6    -      -       -      -
    870K  VAL*     3.3    30.3    +      -       -      +
    936K  GLU*     3.6    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 867 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198J  GLU*     4.5    19.6    +      -       -      +
    851K  PRO*     4.7     8.5    -      -       -      +
    865K  LEU      3.3     1.2    +      -       -      -
    866K  GLY*     1.3    77.8    -      -       -      +
    868K  SER*     1.3    64.3    +      -       -      +
    870K  VAL*     3.9    14.2    -      -       -      +
    871K  SER*     3.9    13.5    +      -       -      -
    934K  CYS*     4.2    14.5    -      -       +      +
    935K  SER      2.9    32.0    +      -       -      +
    936K  GLU*     3.6    12.1    -      -       -      +
    939K  GLU*     4.8    14.5    -      -       -      +
    958K  SER*     5.7     0.7    -      -       -      -
    962K  ILE*     4.9     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 868 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    865K  LEU*     3.7    23.8    +      -       -      -
    866K  GLY      3.6     0.2    -      -       -      -
    867K  ASN*     1.3    76.7    -      -       -      +
    869K  ILE*     1.3    63.5    +      -       -      +
    872K  GLY      3.6     9.1    +      -       -      -
    897K  TRP*     4.1     6.1    -      -       -      -
    934K  CYS      4.2     6.0    +      -       -      -
    958K  SER*     4.1     8.6    +      -       -      -
    961K  LEU*     3.5    31.4    -      -       -      +
    962K  ILE*     3.8    20.5    -      -       -      +
    965K  MET*     3.4    21.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 869 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    824K  TRP*     3.4    62.4    -      -       +      +
    836K  LEU*     4.4     0.7    -      -       +      -
    847K  VAL*     3.9    15.7    -      -       +      +
    864K  ASP*     4.3     3.4    -      -       -      +
    865K  LEU      3.1    26.4    +      -       -      +
    866K  GLY*     4.2     0.7    -      -       -      +
    867K  ASN      3.3     0.6    -      -       -      -
    868K  SER*     1.3    76.6    -      -       -      +
    870K  VAL*     1.3    60.2    +      -       -      +
    872K  GLY      3.2     1.7    +      -       -      -
    873K  PHE*     3.0    49.1    +      -       +      +
    894K  LEU*     5.7     1.8    -      -       +      -
    897K  TRP*     3.3    27.6    -      -       +      -
    965K  MET*     3.8     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 870 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    777K  GLU*     4.7     8.3    -      -       +      +
    824K  TRP*     3.6    30.7    -      -       +      +
    825K  SER*     2.9    33.4    +      -       -      +
    830K  LYS*     4.3    13.5    +      -       -      +
    851K  PRO*     3.8    20.9    -      -       +      -
    866K  GLY      3.3    19.6    +      -       -      +
    867K  ASN*     3.9     9.0    -      -       -      +
    869K  ILE*     1.3    79.6    -      -       -      +
    871K  SER*     1.3    68.7    +      -       -      +
    874K  GLN*     3.4    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 871 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244J  GLU*     5.0     9.3    +      -       -      -
    867K  ASN      3.9    14.7    +      -       -      -
    869K  ILE      3.4     0.4    -      -       -      -
    870K  VAL*     1.3    83.5    -      -       -      +
    872K  GLY*     1.3    64.9    +      -       -      +
    874K  GLN*     3.8     5.7    +      -       -      +
    875K  LEU*     3.6    25.5    +      -       -      +
    962K  ILE*     4.3    19.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 872 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    868K  SER      3.6    10.8    +      -       -      -
    869K  ILE      3.2     5.2    +      -       -      -
    871K  SER*     1.3    79.1    -      -       -      +
    873K  PHE*     1.3    57.6    +      -       -      +
    875K  LEU*     3.3    20.3    +      -       -      +
    876K  ALA*     3.3     9.7    +      -       -      +
    962K  ILE*     3.8    26.6    -      -       -      +
    965K  MET*     4.0    11.4    -      -       -      -
    966K  LYS*     4.3     7.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 873 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    751K  LEU*     3.7    14.8    -      -       +      -
    753K  VAL*     4.0    10.5    -      -       +      -
    825K  SER*     4.4     5.7    -      -       -      -
    836K  LEU*     3.4    40.7    -      -       +      +
    869K  ILE*     3.0    27.1    +      -       +      +
    872K  GLY*     1.3    72.2    -      -       -      +
    874K  GLN*     1.3    63.4    +      -       -      +
    876K  ALA*     3.8     7.7    -      -       +      +
    877K  THR*     3.5    27.7    +      -       +      +
    892K  PHE*     4.6     3.4    -      +       -      -
    894K  LEU*     3.5    35.0    -      -       +      -
    897K  TRP*     5.1     4.9    -      -       +      -
    965K  MET*     3.6    28.7    -      -       +      -
    969K  CYS*     3.5    31.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 874 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    825K  SER*     2.9    20.1    +      -       -      -
    827K  GLY      3.4     9.3    +      -       -      -
    828K  PRO*     2.7    36.8    +      -       -      +
    830K  LYS*     2.9    39.0    +      -       -      +
    870K  VAL      3.4    16.2    +      -       -      +
    871K  SER*     3.8     8.3    -      -       -      +
    872K  GLY      3.3     0.6    -      -       -      -
    873K  PHE*     1.3    77.3    -      -       -      +
    875K  LEU*     1.3    63.6    +      -       +      +
    877K  THR*     2.7    19.8    +      -       -      -
    878K  LEU*     3.3    25.7    -      -       +      +
   1101K  TYR*     4.3    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 875 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244J  GLU*     5.9     3.4    -      -       +      -
    871K  SER      3.6    15.0    -      -       -      +
    872K  GLY      3.3     8.1    +      -       -      +
    874K  GLN*     1.3    80.2    -      -       +      +
    876K  ALA*     1.3    61.2    +      -       -      +
    878K  LEU*     3.5    13.3    +      -       +      +
    879K  SER*     3.4    16.8    +      -       -      -
    962K  ILE*     4.9     6.5    -      -       +      +
    963K  ALA*     6.4     0.2    -      -       -      -
    966K  LYS*     3.6    31.7    -      -       +      +
   1103K  GLU*     3.2    43.7    -      -       +      +
   1104K  GLU*     4.5     0.9    -      -       -      -
   1105K  LYS*     3.7    45.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 876 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    872K  GLY      3.3     7.0    +      -       -      +
    873K  PHE*     3.8    20.9    -      -       +      +
    874K  GLN      3.3     0.6    -      -       -      -
    875K  LEU*     1.3    78.2    -      -       -      +
    877K  THR*     1.3    59.8    +      -       +      +
    878K  LEU      3.6     0.3    +      -       -      -
    879K  SER*     3.7    18.5    +      -       -      +
    887K  LEU*     3.9     5.4    -      -       -      +
    892K  PHE*     4.8     6.0    -      -       +      -
    965K  MET      4.5     0.2    -      -       -      +
    966K  LYS*     4.2     8.9    -      -       -      +
    969K  CYS*     3.4    40.9    -      -       +      +
    973K  LEU*     4.0     8.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 877 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    825K  SER      4.9     5.6    -      -       -      +
    827K  GLY      3.6    16.9    +      -       -      +
    828K  PRO*     3.6    17.1    -      -       -      +
    834K  ASN*     4.1    30.3    -      -       +      +
    836K  LEU*     5.9     4.5    -      -       +      -
    873K  PHE*     3.5    14.4    +      -       +      +
    874K  GLN*     2.7    22.2    +      -       -      -
    876K  ALA*     1.3    77.4    -      -       +      +
    878K  LEU*     1.3    58.3    +      -       -      +
    886K  PRO*     3.8     2.4    -      -       -      +
    887K  LEU*     3.2    35.3    +      -       -      +
    892K  PHE*     4.9    13.2    -      -       +      -
----------------------------------------------------------
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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