Contacts of the strand formed by residues 81 - 90 (chain F) in PDB entry 1C9T


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 GLN 81 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65F  VAL      2.9    14.0    -      -       -      +
     66F  ARG*     3.1     2.1    -      -       -      -
     67F  LEU*     3.0    41.6    +      -       +      +
     70F  GLU*     4.7     1.2    +      -       -      -
     79F  ASN*     5.4     7.2    +      -       -      +
     80F  GLU*     1.3    81.1    -      -       -      +
     82F  PHE*     1.3    65.2    +      -       -      +
     83F  ILE*     3.8     8.5    -      -       +      +
    112F  ALA*     4.3    10.7    -      -       -      +
    113F  SER*     2.8    39.0    +      -       -      -
    115F  ASN*     5.7     0.8    +      -       -      +
    118F  VAL*     3.3    27.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 82 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  LYS*     3.2    30.1    +      -       +      +
     89C  ILE*     4.6    29.8    -      -       +      -
    245C  ASN*     3.7    27.5    +      -       -      +
     34F  ASN*     5.6     5.6    -      -       -      -
     64F  GLN*     5.6    13.7    -      -       +      +
     65F  VAL      3.4     5.8    -      -       -      -
     66F  ARG*     3.3    44.9    -      -       +      -
     70F  GLU*     4.2     1.8    -      -       -      -
     80F  GLU*     3.4    34.1    -      -       +      -
     81F  GLN*     1.3    78.2    -      -       -      +
     83F  ILE*     1.3    60.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 83 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  LYS*     4.8     5.8    -      -       -      +
     64F  GLN*     3.5     3.8    -      -       -      -
     65F  VAL*     2.8    43.2    +      -       -      +
     67F  LEU*     3.9    22.7    -      -       +      -
     81F  GLN*     4.4    11.2    -      -       +      +
     82F  PHE*     1.3    77.3    -      -       -      +
     84F  SER*     1.3    76.8    +      -       -      +
    108F  LEU*     3.8    16.4    -      -       +      -
    109F  LYS*     4.4     1.6    -      -       +      -
    110F  SER*     3.7    42.2    -      -       -      +
    111F  ALA      4.6     2.2    -      -       -      +
    112F  ALA*     4.1    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 84 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86C  SER*     2.7    40.8    +      -       -      -
     87C  LYS*     3.8    12.3    -      -       -      +
     63F  ILE      4.1     6.3    -      -       -      -
     64F  GLN*     4.6     5.2    -      -       -      +
     82F  PHE      4.4     0.4    +      -       -      -
     83F  ILE*     1.3    79.8    -      -       -      +
     85F  ALA*     1.3    55.7    +      -       -      +
    108F  LEU*     3.7     0.6    -      -       -      -
    109F  LYS*     2.7    55.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 85 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62F  GLY*     5.7     2.9    -      -       -      -
     63F  ILE*     3.3    26.8    +      -       +      +
     65F  VAL*     4.8     4.7    -      -       +      -
     83F  ILE      3.8     0.2    +      -       -      -
     84F  SER*     1.3    73.9    -      -       -      +
     86F  SER*     1.3    65.3    +      -       -      +
     87F  LYS      4.8     0.2    -      -       -      +
     88F  SER*     4.0    15.1    +      -       -      +
    106F  ILE*     3.4    31.9    -      -       +      -
    107F  LYS      3.3     5.2    -      -       -      +
    108F  LEU*     4.3     1.6    -      -       -      +
    109F  LYS*     4.9     1.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 86 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85F  ALA*     1.3    75.0    -      -       -      +
     87F  LYS*     1.3    81.3    +      -       -      +
     88F  SER      4.3     0.3    +      -       -      -
    107F  LYS*     2.6    21.3    +      -       -      -
    108F  LEU      4.4     0.4    -      -       -      -
    109F  LYS*     3.6    27.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 87 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111B  ALA*     5.2     5.9    -      -       -      +
     51F  TRP*     4.7     0.7    -      -       +      -
     86F  SER*     1.3    99.3    -      -       -      +
     88F  SER*     1.3    61.9    +      -       -      +
     89F  ILE*     3.7    23.8    -      -       +      -
    105F  LEU      3.9     1.2    -      -       -      +
    106F  ILE*     3.6     1.7    -      -       -      +
    107F  LYS*     2.8    54.8    +      -       +      +
    245F  ASN*     3.8    27.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 88 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59F  TYR*     3.5    38.5    -      -       -      -
     60F  LYS      4.8     4.7    +      -       -      -
     62F  GLY      5.6     1.4    +      -       -      -
     63F  ILE*     4.7    11.4    +      -       -      +
     85F  ALA*     4.0    19.6    +      -       -      +
     86F  SER      4.2     1.0    +      -       -      -
     87F  LYS*     1.3    72.6    +      -       -      +
     89F  ILE*     1.3    60.6    +      -       -      +
     90F  VAL*     3.6     1.9    +      -       -      +
    104F  MET*     4.7     3.6    -      -       -      -
    105F  LEU      3.6     4.7    -      -       -      -
    106F  ILE*     4.5    12.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 89 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  TRP*     3.8    15.7    -      -       +      -
     87F  LYS*     4.2    15.7    -      -       +      -
     88F  SER*     1.3    71.6    -      -       -      +
     90F  VAL*     1.3    69.8    +      -       -      +
     92F  PRO*     6.1     0.2    -      -       +      -
    104F  MET*     3.5     2.8    -      -       -      -
    105F  LEU*     2.8    40.6    +      -       +      +
    237F  TRP*     3.8    19.3    -      -       +      -
    241F  THR*     3.7    14.8    -      -       +      -
    245F  ASN*     3.5    37.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 90 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56F  ALA*     3.6    21.8    -      -       +      +
     59F  TYR*     3.4    44.9    -      -       +      -
     88F  SER      3.6     1.8    +      -       -      -
     89F  ILE*     1.3    81.6    -      -       -      +
     91F  HIS*     1.3    79.0    +      -       -      +
     92F  PRO*     3.3     5.5    -      -       -      +
     94F  TYR*     4.1    13.5    -      -       +      -
    104F  MET*     3.9    11.9    -      -       -      -
    237F  TRP*     4.4     0.9    -      -       -      -
----------------------------------------------------------
 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