Contacts of the strand formed by residues 106 - 111 (chain B) in PDB entry 4MXR


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 PHE 106 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23B  ASP      3.0    17.8    +      -       -      +
     24B  ILE*     3.2    10.1    -      -       +      +
     25B  VAL      2.7    31.6    +      -       -      -
    100B  VAL*     4.0     2.0    -      -       -      -
    105B  ALA*     1.3    72.2    -      -       -      +
    107B  PRO*     1.3    72.0    -      -       -      +
    108B  PHE*     4.3     4.5    -      -       +      -
    266B  VAL*     3.3    27.6    -      -       +      -
    267B  MET*     3.2    22.0    -      -       +      -
    268B  MET      3.3    19.3    -      -       -      -
    269B  MET*     3.5    11.7    -      -       +      -
    294B  PHE*     3.0    48.0    -      +       -      -
    298B  PHE*     4.0    22.0    -      +       +      -
    301B  ARG*     4.1     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 107 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  VAL      3.4     6.7    -      -       -      +
     27B  ILE*     4.3    14.4    -      -       +      -
     97B  VAL*     4.1    16.2    -      -       +      +
    100B  VAL*     3.7    23.8    -      -       +      -
    101B  LEU*     3.7    23.6    -      -       +      -
    105B  ALA      3.5     5.8    -      -       -      +
    106B  PHE*     1.3    88.2    -      -       -      +
    108B  PHE*     1.3    59.9    +      -       -      +
    109B  VAL*     4.9     0.9    -      -       +      -
    267B  MET      3.3    18.4    -      -       -      +
    268B  MET*     3.5    10.7    -      -       +      +
    269B  MET      3.3    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 108 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  ILE*     4.4     7.6    -      -       +      -
     25B  VAL      2.8    12.2    +      -       -      +
     26B  ILE*     3.3    12.0    -      -       +      -
     27B  ILE      2.9    24.3    +      -       -      +
     51B  PHE*     3.7    28.0    -      +       -      -
    106B  PHE*     3.8     7.1    +      +       +      -
    107B  PRO*     1.3    72.1    -      -       -      +
    109B  VAL*     1.3    62.5    +      -       -      +
    110B  ILE*     3.9    17.7    -      -       +      -
    269B  MET*     3.3    50.3    -      -       +      -
    271B  MET*     3.9    33.0    -      -       +      -
    291B  PHE*     3.6    39.7    -      +       +      -
    294B  PHE*     5.6     0.9    -      +       -      -
----------------------------------------------------------
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Residues in contact with VAL 109 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  ILE*     3.3    18.6    -      -       +      +
     29B  PHE*     4.2     6.5    -      -       +      -
     93B  LEU*     3.9    20.2    -      -       +      -
     97B  VAL*     3.8    28.7    -      -       +      -
    107B  PRO      4.9     0.7    -      -       -      -
    108B  PHE*     1.3    81.6    -      -       -      +
    110B  ILE*     1.3    60.9    +      -       -      +
    111B  GLY      3.8     0.2    +      -       -      -
    116B  GLN*     3.1    24.1    +      -       -      +
    120B  ASN*     3.9    17.0    -      -       -      +
    268B  MET*     4.0     9.4    -      -       +      -
    269B  MET      3.0     8.1    +      -       -      -
    270B  ASP*     3.3     4.8    -      -       +      +
    271B  MET*     2.9    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 110 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  ILE*     4.4    14.6    -      -       +      -
     27B  ILE      3.0    14.9    +      -       -      +
     28B  GLY*     4.0     8.5    -      -       -      -
     29B  PHE      3.0    24.1    +      -       -      -
     47B  GLY      4.6     0.2    -      -       -      +
     48B  PRO*     3.5    19.0    -      -       +      +
     51B  PHE*     3.7    44.2    -      -       +      -
     52B  ARG*     5.4     3.1    -      -       -      +
    108B  PHE*     3.9    12.0    +      -       +      -
    109B  VAL*     1.3    71.5    -      -       -      +
    111B  GLY*     1.3    75.0    +      -       -      +
    116B  GLN*     4.0     1.8    -      -       -      -
    271B  MET*     3.7    28.9    -      -       +      +
    274B  LEU*     4.6    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 111 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  PHE      3.6     3.1    -      -       -      -
     47B  GLY*     3.7     6.6    -      -       -      -
     48B  PRO*     3.4    16.7    -      -       -      +
    110B  ILE*     1.3    88.5    -      -       -      +
    112B  GLY*     1.3    69.8    +      -       -      -
    116B  GLN*     3.5    15.5    -      -       -      +
    271B  MET      2.9    16.5    +      -       -      +
    273B  GLU      4.8     2.0    -      -       -      -
    274B  LEU*     4.4     5.4    -      -       -      +
----------------------------------------------------------
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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