Contacts of the strand formed by residues 146 - 150 (chain H) in PDB entry 6B0B


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 146 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144H  GLU*     3.4    11.0    +      -       -      +
    145H  ALA*     1.3    77.5    +      -       -      +
    147H  SER*     1.3    60.7    +      -       -      +
    148H  GLU*     3.5     5.0    +      -       -      +
    161H  ILE*     4.0    23.8    -      -       -      -
    162H  LYS      4.4     4.1    +      -       -      -
    163H  GLN*     3.8    23.6    -      -       -      +
    164H  ARG*     4.4     4.2    +      -       -      +
    195H  VAL      4.4     0.3    -      -       -      +
    196H  ASN*     5.8     0.2    -      -       -      -
    197H  ILE*     4.3    25.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 147 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146H  SER*     1.3    71.7    -      -       -      +
    148H  GLU*     1.3    60.0    +      -       -      +
    149H  ARG*     3.7    10.9    +      -       -      +
    160H  GLU      5.3     1.2    -      -       -      +
    161H  ILE*     5.5     3.1    -      -       -      +
    194H  ASN*     4.0    21.8    +      -       -      +
    195H  VAL      3.9     7.7    +      -       -      -
    196H  ASN*     3.6    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 148 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70H  LYS*     4.2    14.0    +      -       -      +
    146H  SER      3.5     5.1    +      -       -      +
    147H  SER*     1.3    70.3    -      -       -      +
    149H  ARG*     1.3    62.5    +      -       -      +
    150H  MET*     3.5    27.2    +      -       -      +
    159H  GLY*     3.5    22.2    -      -       -      +
    160H  GLU      4.1    10.3    -      -       -      +
    161H  ILE*     3.5    39.8    -      -       +      +
    179H  THR*     4.8     2.1    +      -       -      -
    181H  TYR*     3.7    18.4    +      -       -      -
    195H  VAL*     3.2    33.0    +      -       +      +
    197H  ILE*     4.3    12.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 149 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147H  SER*     3.7    11.3    +      -       -      +
    148H  GLU*     1.3    73.4    -      -       -      +
    150H  MET*     1.3    67.3    +      -       -      +
    151H  TYR*     3.8    18.0    -      -       +      -
    158H  LYS      4.2     2.3    -      -       -      +
    159H  GLY*     4.3     5.2    -      -       -      -
    160H  GLU      4.4     8.6    +      -       -      +
    193H  TYR      4.0     6.3    -      -       -      +
    194H  ASN*     4.0    21.2    -      -       +      +
    222H  SER*     5.4     4.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 150 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148H  GLU*     3.5    40.2    -      -       -      +
    149H  ARG*     1.3    75.6    -      -       -      +
    151H  TYR*     1.3    64.5    +      -       -      +
    157H  LEU*     3.7    21.3    -      -       +      -
    158H  LYS      3.4    18.6    -      -       -      +
    159H  GLY*     3.8     3.1    -      -       -      -
    181H  TYR*     3.6    31.2    -      -       +      -
    192H  ALA*     4.4     3.3    -      -       -      +
    193H  TYR*     3.3    64.7    +      -       +      +
    195H  VAL*     4.4     8.5    -      -       +      -
----------------------------------------------------------
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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