Contacts of the helix formed by residues 3969 - 3978 (chain H) in PDB entry 6X34


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 THR3969 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3967H  PRO      5.8     0.4    -      -       -      -
   3968H  CYS*     1.3    79.8    -      -       -      +
   3970H  GLY*     1.3    77.2    +      -       -      +
   3971H  ASN      3.2     2.1    +      -       -      -
   3972H  GLN*     3.5     2.0    +      -       -      +
   3973H  GLN*     2.7    37.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY3970 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3896H  ASN*     6.4     1.3    -      -       -      +
   3899H  ARG*     4.4    20.9    -      -       -      +
   3911H  ILE*     6.1     0.2    -      -       -      +
   3969H  THR*     1.3    84.6    +      -       -      +
   3971H  ASN*     1.3    63.7    +      -       -      +
   3972H  GLN      3.4     0.2    -      -       -      -
   3973H  GLN*     4.7     2.3    -      -       -      +
   3974H  SER*     3.3    27.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN3971 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3895H  GLN*     4.0    27.2    +      -       -      +
   3896H  ASN*     5.3     1.0    -      -       -      -
   3898H  LEU*     5.9     1.0    -      -       -      +
   3899H  ARG*     5.3     3.8    -      -       -      +
   3911H  ILE*     4.5    20.3    -      -       -      +
   3963H  TYR*     3.1    50.0    +      -       +      +
   3964H  ILE*     4.6     5.1    -      -       +      +
   3968H  CYS*     3.6    21.3    -      -       -      +
   3969H  THR      3.2     1.0    -      -       -      -
   3970H  GLY*     1.3    80.6    +      -       -      +
   3972H  GLN*     1.3    58.8    +      -       -      +
   3974H  SER*     4.0     3.0    -      -       -      -
   3975H  LEU*     3.2    31.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN3972 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3964H  ILE*     5.2     6.5    -      -       +      -
   3967H  PRO*     5.2     2.1    -      -       -      +
   3968H  CYS*     3.2    41.7    +      -       -      +
   3969H  THR      3.5     1.4    +      -       -      +
   3970H  GLY      3.4     0.6    -      -       -      -
   3971H  ASN*     1.3    76.3    -      -       -      +
   3973H  GLN*     1.3    76.2    +      -       -      +
   3975H  LEU*     3.6     3.9    +      -       -      +
   3976H  ALA*     3.1    25.1    +      -       -      +
   4024H  SER      5.3     2.4    -      -       -      +
   4025H  LEU*     4.0    30.1    +      -       +      +
   4028H  GLY      4.9     7.6    +      -       -      +
   4029H  ASN*     5.4     9.7    -      -       -      +
   4035H  ILE*     4.8    24.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN3973 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3969H  THR*     2.7    29.2    +      -       -      +
   3970H  GLY*     4.8     2.0    -      -       -      +
   3971H  ASN      3.5     0.2    -      -       -      -
   3972H  GLN*     1.3    86.1    +      -       -      +
   3974H  SER*     1.3    64.2    +      -       -      +
   3976H  ALA*     4.6     3.8    -      -       -      -
   3977H  HIS*     3.1    47.4    +      -       +      +
   4034H  MET*     6.3     2.2    -      -       -      -
   4035H  ILE*     4.9    20.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER3974 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3899H  ARG*     5.3     3.9    -      -       -      +
   3909H  ASN*     4.4    16.7    +      -       -      -
   3911H  ILE*     4.2    23.9    -      -       -      +
   3912H  ILE*     6.1     2.5    -      -       -      -
   3970H  GLY      3.3    19.7    +      -       -      -
   3971H  ASN*     4.3     2.5    -      -       -      -
   3972H  GLN      3.3     0.4    -      -       -      -
   3973H  GLN*     1.3    77.4    -      -       -      +
   3975H  LEU*     1.3    63.5    +      -       -      +
   3977H  HIS*     3.6     4.8    +      -       -      +
   3978H  SER*     3.1    25.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU3975 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3911H  ILE*     5.1     7.1    -      -       +      +
   3915H  VAL*     5.2     3.4    -      -       +      -
   3960H  LEU*     4.1    37.2    -      -       +      +
   3963H  TYR*     6.5     0.2    -      -       +      -
   3964H  ILE*     5.5     8.1    -      -       +      -
   3971H  ASN      3.2    20.5    +      -       -      +
   3972H  GLN*     4.1     3.6    -      -       -      +
   3974H  SER*     1.3    77.0    -      -       -      +
   3976H  ALA*     1.3    63.5    +      -       -      +
   3978H  SER*     2.8    21.3    +      -       -      +
   3980H  LEU*     3.7    27.4    -      -       +      +
   3981H  TRP      5.0     1.3    +      -       -      +
   4025H  LEU*     3.7    29.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA3976 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3972H  GLN      3.1    18.6    +      -       -      +
   3973H  GLN*     4.1     5.4    -      -       -      +
   3974H  SER      3.3     0.4    -      -       -      -
   3975H  LEU*     1.3    82.4    -      -       -      +
   3977H  HIS*     1.3    69.4    +      -       +      +
   3978H  SER      3.5     6.8    +      -       -      +
   3981H  TRP*     5.9     2.9    -      -       -      +
   4025H  LEU*     6.2     3.4    -      -       +      -
   4035H  ILE*     5.3    13.5    -      -       +      -
   4038H  GLN*     4.6    27.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS3977 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3973H  GLN*     3.1    34.5    +      -       +      +
   3974H  SER*     4.2     4.7    -      -       -      +
   3976H  ALA*     1.3    82.1    +      -       +      +
   3978H  SER*     1.3    65.0    +      -       -      +
   4034H  MET*     5.7    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER3978 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   3911H  ILE*     5.9     0.6    -      -       -      +
   3912H  ILE*     6.0     2.9    -      -       -      -
   3915H  VAL*     3.7    28.7    -      -       -      +
   3974H  SER      3.1    15.9    +      -       -      -
   3975H  LEU*     2.8    26.3    +      -       -      +
   3976H  ALA      3.3     8.4    -      -       -      +
   3977H  HIS*     1.3    81.1    -      -       -      +
   3979H  ARG*     1.3    59.1    +      -       -      +
   3980H  LEU*     3.3    11.7    +      -       -      +
   3981H  TRP*     4.7     3.1    +      -       -      +
----------------------------------------------------------
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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