Contacts of the helix formed by residues 308 - 319 (chain 0) in PDB entry 1O1F


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 308 (chain 0).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2190  VAL*     3.0    19.6    -      -       -      +
    2210  LEU*     4.7     5.6    -      -       -      +
    3060  TYR      3.5     0.2    +      -       -      -
    3070  PRO*     1.3    72.9    -      -       -      +
    3090  ILE*     1.3    62.7    +      -       -      +
    3100  ALA*     3.3     3.1    -      -       -      +
    3110  ASP*     4.0    22.1    -      -       -      +
    3120  ARG*     3.3    21.7    +      -       -      +
    3350  ARG*     5.9     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 309 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1530  LEU*     5.7     4.7    -      -       +      -
    2190  VAL*     3.9    15.3    -      -       +      -
    2610  LEU*     4.3    13.5    -      -       +      -
    2620  PHE*     4.6     9.0    -      -       +      -
    2740  ILE*     6.2     2.5    -      -       +      -
    2990  MET*     4.3    13.7    -      -       +      -
    3030  THR      3.9     7.4    -      -       -      +
    3040  THR*     3.2    51.6    -      -       +      +
    3060  TYR*     3.2    25.8    -      -       +      +
    3070  PRO      3.2     1.0    -      -       -      -
    3080  GLY*     1.3    78.2    -      -       -      +
    3100  ALA*     1.3    71.8    +      -       +      +
    3120  ARG*     3.8     2.4    +      -       -      +
    3130  MET*     3.0    32.7    +      -       +      +
    3350  ARG*     3.5    14.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 310 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2990  MET*     4.0    22.9    -      -       +      -
    3080  GLY*     5.7     0.9    -      -       -      +
    3090  ILE*     1.3    82.4    -      -       +      +
    3110  ASP*     1.4    53.6    +      -       -      +
    3130  MET*     3.1     3.1    +      -       -      +
    3140  GLN*     2.8    39.3    +      -       +      +
    3290  ILE*     4.1    14.8    -      -       +      +
    3310  ALA*     4.1    13.9    -      -       +      -
    3350  ARG*     5.5     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 311 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2210  LEU*     3.8    32.4    -      -       +      +
    3080  GLY*     3.8    17.4    +      -       -      +
    3090  ILE      3.5     0.2    -      -       -      -
    3100  ALA*     1.4    73.6    -      -       -      +
    3120  ARG*     1.3    66.0    +      -       -      +
    3140  GLN*     3.1    11.0    -      -       -      +
    3150  LYS*     3.0    26.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 312 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2190  VAL*     3.6    13.2    -      -       +      -
    2200  ALA      3.0    20.7    +      -       -      +
    2210  LEU*     3.8    15.2    -      -       -      +
    2220  ASP      4.9     2.9    -      -       -      +
    2230  PHE*     2.9    41.2    -      -       -      +
    2620  PHE*     3.3    25.8    -      -       +      +
    2630  GLN*     3.4    26.9    +      -       -      +
    3080  GLY      3.3    13.7    +      -       -      +
    3090  ILE      3.9     3.1    -      -       -      +
    3110  ASP*     1.3    78.2    -      -       -      +
    3130  MET*     1.3    52.1    +      -       -      +
    3150  LYS*     3.3     4.1    +      -       -      +
    3160  GLU*     2.7    76.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 313 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1530  LEU*     4.5     9.4    -      -       +      -
    2620  PHE*     4.2    10.3    -      -       +      -
    2740  ILE*     3.9    17.7    -      -       +      -
    2750  HIS*     3.4    34.8    -      -       -      -
    2780  THR*     3.0    36.1    -      -       +      +
    2970  ASN*     4.4    11.2    -      -       -      +
    2990  MET*     4.8     8.1    -      -       -      -
    3090  ILE*     3.0    24.6    +      -       +      +
    3100  ALA*     3.1     4.5    +      -       -      +
    3120  ARG*     1.3    71.5    -      -       -      +
    3140  GLN*     1.3    59.4    +      -       -      +
    3160  GLU*     3.6     2.3    -      -       -      +
    3170  ILE*     2.9    39.9    +      -       +      +
    3290  ILE*     4.1    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 314 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3100  ALA*     2.8    13.4    +      -       +      +
    3110  ASP*     3.1    16.8    -      -       -      +
    3130  MET*     1.3    75.6    -      -       -      +
    3150  LYS*     1.3    63.5    +      -       +      +
    3180  THR*     2.8    34.8    +      -       -      +
    3270  ILE*     3.5    32.0    +      -       -      +
    3280  LYS*     4.3     2.0    -      -       -      +
    3290  ILE*     3.5    30.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 315 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2210  LEU*     6.3     4.3    -      -       +      -
    3110  ASP      3.0    12.5    +      -       -      +
    3120  ARG*     4.0     4.0    -      -       -      +
    3140  GLN*     1.3    82.8    -      -       +      +
    3160  GLU*     1.3    66.5    +      -       -      +
    3180  THR*     3.1    34.3    +      -       +      +
    3190  ALA*     3.5    29.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 316 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2620  PHE*     4.6     2.7    -      -       +      -
    2750  HIS*     3.2    57.8    +      -       +      -
    3120  ARG*     2.7    59.1    +      -       -      +
    3130  MET*     3.2     8.2    +      -       -      +
    3150  LYS*     1.3    81.4    -      -       -      +
    3170  ILE*     1.3    62.3    +      -       -      +
    3190  ALA*     3.9     3.5    +      -       -      +
    3200  LEU*     3.8    17.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 317 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2750  HIS*     3.8    22.9    -      -       +      +
    2780  THR*     4.1    16.2    -      -       +      -
    2790  TYR*     5.1     6.2    -      -       +      +
    2940  TYR*     4.0    24.0    -      -       +      +
    2970  ASN*     3.9    13.7    -      -       -      +
    3130  MET*     2.9    28.4    +      -       +      +
    3160  GLU*     1.3    76.5    -      -       -      +
    3180  THR*     1.3    66.3    +      -       -      +
    3190  ALA      3.2     2.2    -      -       -      -
    3200  LEU*     3.0     6.5    +      -       +      +
    3210  ALA*     2.9    25.8    +      -       -      +
    3270  ILE*     3.7    26.5    -      -       +      -
    3290  ILE*     3.6    22.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 318 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3140  GLN*     2.8    30.2    +      -       -      +
    3150  LYS*     3.1    30.6    +      -       +      +
    3170  ILE*     1.3    73.5    -      -       -      +
    3190  ALA*     1.3    61.1    +      -       -      +
    3200  LEU      3.1     5.4    +      -       -      -
    3210  ALA*     3.1    20.8    -      -       -      +
    3230  SER*     5.8     0.7    -      -       -      -
    3250  MET      6.1     0.4    -      -       -      +
    3270  ILE*     3.7    29.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 319 (chain 0). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3150  LYS*     3.5    29.5    +      -       -      +
    3160  GLU*     4.0     4.5    -      -       -      +
    3170  ILE      3.2     0.6    -      -       -      -
    3180  THR*     1.3    79.3    +      -       -      +
    3200  LEU*     1.3    58.9    +      -       -      +
    3210  ALA      4.8     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