Contacts of the strand formed by residues 153 - 157 (chain F) in PDB entry 3M4D


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 153 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107E  ILE*     3.5    31.0    -      -       +      +
     81F  PRO      3.8    18.2    -      -       -      -
     82F  SER      4.4     1.1    -      -       -      -
     84F  PHE*     3.8    20.0    -      +       -      -
    151F  PRO*     3.4    19.4    -      -       -      +
    152F  ASP*     1.3    84.0    -      -       +      +
    154F  LYS*     1.3    63.6    +      -       -      +
    169F  VAL*     3.9    19.5    -      -       +      -
    170F  ILE      3.1     8.3    -      -       -      -
    171F  PHE*     3.3    43.7    -      +       +      -
    172F  ASN*     4.1     0.4    -      -       -      +
    217F  SER*     3.6    27.6    -      -       -      -
    219F  LEU*     3.8    25.1    -      -       +      -
    220F  LEU*     3.9    13.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 154 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108F  ASP*     4.9    12.1    +      -       -      -
    151F  PRO*     4.3    13.7    -      -       +      -
    153F  PHE*     1.3    75.8    -      -       -      +
    155F  THR*     1.3    61.3    +      -       -      +
    156F  ILE*     4.3    14.5    -      -       +      +
    168F  LYS      3.5     2.1    -      -       -      +
    169F  VAL*     3.2     5.1    -      -       -      -
    170F  ILE*     2.8    47.7    +      -       +      +
    172F  ASN*     3.9    28.3    -      -       +      +
    214G  ASN      3.0    28.3    +      -       -      +
    215G  LYS*     4.2     6.9    -      -       -      +
    216G  ALA      3.5    20.0    +      -       -      -
    218G  SER*     5.3     4.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 155 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107E  ILE*     3.9    19.9    -      -       -      +
    103F  PRO*     4.4    17.0    -      -       +      -
    104F  ARG      5.0     5.5    -      -       -      +
    105F  ASN*     4.3     4.3    -      -       -      +
    153F  PHE      4.2     0.2    +      -       -      -
    154F  LYS*     1.3    72.5    +      -       -      +
    156F  ILE*     1.3    64.2    +      -       -      +
    157F  LEU      4.3     0.5    +      -       -      -
    167F  TRP*     4.9     4.0    -      -       +      -
    168F  LYS      3.8     2.7    -      -       -      +
    169F  VAL*     4.2    14.0    -      -       +      +
    224F  PHE*     5.2     2.4    -      -       +      -
    228F  PHE*     4.2    25.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 156 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105F  ASN*     3.5    11.2    -      -       -      +
    154F  LYS*     4.3    16.8    -      -       +      -
    155F  THR*     1.3    79.2    -      -       -      +
    157F  LEU*     1.3    65.2    +      -       -      +
    158F  GLU      3.5     0.5    +      -       -      -
    167F  TRP*     3.2    10.4    -      -       -      +
    168F  LYS*     2.9    62.6    +      -       +      +
    170F  ILE*     3.7    29.8    -      -       +      -
    213G  PRO      6.0     0.2    -      -       -      +
    214G  ASN*     4.4     5.4    -      -       -      +
    218G  SER*     4.2    21.1    -      -       -      -
    221G  SER*     6.0     2.0    -      -       -      +
    222G  SER*     3.2    30.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 157 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101F  TYR*     3.7    27.4    -      -       +      -
    103F  PRO      3.8     4.7    -      -       -      +
    104F  ARG*     3.8    31.5    -      -       +      -
    105F  ASN*     2.9    30.5    +      -       -      +
    155F  THR      4.3     0.2    +      -       -      -
    156F  ILE*     1.3    72.1    -      -       -      +
    158F  GLU*     1.3    70.4    +      -       -      +
    160F  PRO*     4.7     1.8    -      -       +      -
    165F  VAL*     3.9    15.9    -      -       +      -
    166F  GLY      3.8     8.3    -      -       -      +
    167F  TRP*     3.6    32.7    -      -       +      +
     60G  THR*     4.2     6.1    -      -       +      -
    222G  SER*     3.1     7.4    -      -       -      +
    225G  SER*     3.8    16.4    -      -       -      +
----------------------------------------------------------
 Back to top of page


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