Contacts of the strand formed by residues 146 - 152 (chain G) in PDB entry 1F1H


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 GLY 146 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  VAL*     3.3    19.7    -      -       -      -
    150A  ALA*     4.8     0.2    -      -       -      -
    151A  ILE*     5.6     1.3    -      -       -      -
    259A  PRO      6.2     0.2    -      -       -      -
    142G  ALA*     3.4     1.6    -      -       -      +
    143G  SER*     2.8    39.2    +      -       -      +
    144G  ILE      3.4     1.8    +      -       -      -
    145G  SER*     1.3    81.8    +      -       -      +
    147G  SER*     1.3    63.5    +      -       -      -
    456G  THR*     6.1     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 147 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  HIS*     3.4     0.5    -      -       -      -
    149A  VAL*     3.0    39.3    +      -       -      +
    458A  HIS*     5.1     0.9    -      -       -      -
    459A  PRO*     3.7    20.0    -      -       -      -
    141G  GLY      3.2    13.7    -      -       -      -
    142G  ALA*     4.2     9.0    -      -       -      -
    146G  GLY*     1.3    76.5    -      -       -      -
    148G  HIS*     1.3    69.1    +      -       -      +
    456G  THR*     4.6     6.2    -      -       -      +
    457G  PRO      3.5    21.2    +      -       -      -
    459G  PRO*     4.2     3.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 148 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147A  SER      3.4     7.4    -      -       -      +
    148A  HIS*     3.5    17.7    -      -       +      -
    459A  PRO*     3.6    10.5    -      -       -      +
    139G  ARG*     4.3    11.9    +      -       +      +
    140G  PHE*     3.1    15.8    +      -       -      +
    141G  GLY*     2.9    47.4    +      -       -      +
    147G  SER*     1.3    81.0    -      -       -      +
    149G  VAL*     1.3    67.1    -      -       -      +
    150G  ALA*     4.6     5.6    -      -       +      -
    161H  SER*     3.5    36.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 149 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  GLY*     3.3     8.8    -      -       -      -
    147A  SER*     3.0    44.8    +      -       -      +
    457A  PRO*     5.0     1.3    -      -       +      +
    459A  PRO*     4.1    10.1    -      -       +      -
    462A  PHE*     3.6    54.7    -      -       +      -
    138G  ILE*     4.3     7.0    -      -       +      -
    139G  ARG      3.2    12.1    -      -       -      +
    140G  PHE*     4.1     3.6    -      -       +      -
    148G  HIS*     1.3    77.9    -      -       -      +
    150G  ALA*     1.3    66.1    +      -       -      +
    151G  ILE*     4.5     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 150 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  SER      3.8     3.4    -      -       -      -
    146A  GLY*     4.8     0.2    -      -       -      -
    137G  ASP      3.9     1.4    -      -       -      +
    138G  ILE*     3.6     3.8    -      -       -      +
    139G  ARG*     2.7    69.8    +      -       +      +
    148G  HIS*     5.0     4.9    -      -       +      -
    149G  VAL*     1.3    75.8    -      -       -      +
    151G  ILE*     1.3    65.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 151 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  SER*     2.9    29.8    +      -       -      +
    146A  GLY*     5.6     0.9    -      -       -      -
    462A  PHE*     4.2     7.2    -      -       +      -
    135G  PHE*     3.6    36.6    -      -       +      -
    137G  ASP      3.8     3.1    -      -       -      -
    138G  ILE*     3.8    21.3    -      -       +      -
    149G  VAL*     4.5     4.9    -      -       +      -
    150G  ALA*     1.3    74.3    -      -       -      +
    152G  ASP*     1.3    70.7    +      -       -      +
    158G  TRP*     3.7    22.9    +      -       +      -
    259G  PRO*     3.5    36.8    -      -       +      +
    260G  MET*     3.7    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 152 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135G  PHE*     3.6     1.7    -      -       -      +
    136G  ASP*     2.9    24.5    +      -       +      -
    137G  ASP*     2.9    39.2    +      -       +      +
    139G  ARG*     5.5     2.0    -      -       -      +
    151G  ILE*     1.3    81.7    -      -       -      +
    153G  ASP*     1.3    62.3    +      -       -      +
    158G  TRP*     2.9    25.5    +      -       -      -
    159G  ASN*     2.9    21.7    +      -       -      +
----------------------------------------------------------
 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