Contacts of the strand formed by residues 123 - 126 (chain J) 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 CYS 123 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116J  TYR*     4.4    13.0    -      -       -      -
    117J  THR      5.0     1.1    -      -       -      -
    118J  TYR*     4.1    13.0    -      -       +      -
    122J  PHE*     1.3    73.5    -      -       -      +
    124J  VAL*     1.3    75.9    +      -       -      +
    125J  THR*     3.4     1.0    +      -       -      -
    154J  HIS      4.4     2.2    -      -       -      -
    155J  ILE*     4.3    24.7    -      -       -      -
    158J  ILE*     3.0    36.3    -      -       +      -
    671J  PHE      3.5    10.5    +      -       -      +
    672J  VAL*     3.8    11.5    -      -       +      +
    673J  ARG      3.3    17.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 124 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91J  MET*     4.3     5.8    -      -       +      -
    106J  LEU*     4.4    20.9    -      -       +      -
    115J  ILE      3.5     3.4    -      -       -      +
    116J  TYR*     3.6     4.9    -      -       -      -
    117J  THR*     2.9    40.1    +      -       +      +
    119J  SER*     4.1    25.1    -      -       -      +
    122J  PHE*     4.3     5.4    -      -       +      -
    123J  CYS*     1.3    76.2    -      -       -      +
    125J  THR*     1.3    62.0    +      -       -      +
    126J  VAL*     4.7     3.8    -      -       +      -
    673J  ARG*     3.4     5.4    -      -       +      -
    675J  ILE*     3.0    36.3    -      -       +      -
    700J  VAL*     4.2    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 125 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115J  ILE*     3.4     6.3    -      -       +      -
    116J  TYR*     2.8    34.7    -      -       +      +
    123J  CYS      4.1     3.6    +      -       -      -
    124J  VAL*     1.3    74.7    +      -       -      +
    126J  VAL*     1.3    72.5    +      -       -      +
    127J  ASN*     4.7     1.1    -      -       -      +
    128J  PRO*     6.0     0.7    -      -       +      -
    135J  TYR*     5.7     0.9    -      -       -      +
    155J  ILE*     4.1     9.5    -      -       -      +
    183J  ALA      5.3     3.4    -      -       -      +
    188J  ASN*     4.1    22.0    -      -       -      +
    672J  VAL*     4.9     1.5    -      -       -      +
    673J  ARG      3.0    12.0    +      -       -      -
    674J  CYS*     4.3     7.9    -      -       +      -
    675J  ILE*     2.5    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 126 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106J  LEU*     5.1     9.6    -      -       +      +
    110J  TYR*     4.1    26.9    -      -       +      -
    114J  MET      5.0     0.9    -      -       -      +
    115J  ILE*     3.1    38.4    +      -       -      +
    117J  THR*     4.8     8.3    -      -       +      -
    124J  VAL*     4.7     7.9    -      -       +      -
    125J  THR*     1.3    85.6    -      -       -      +
    127J  ASN*     1.4    66.5    +      -       -      +
    128J  PRO*     3.2     6.6    -      -       -      +
    675J  ILE*     3.5    28.3    -      -       +      +
    677J  PRO*     4.1    19.1    -      -       +      -
    686J  MET*     5.1     7.6    -      -       -      -
----------------------------------------------------------
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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