Contacts of the strand formed by residues 3 - 8 (chain A) in PDB entry 1CG4


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 ASN 3 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  ASN*     1.3    76.4    +      -       -      +
      4A  VAL*     1.3    61.3    +      -       -      +
      5A  VAL*     4.1     0.4    +      -       -      -
    212A  ARG*     3.6    27.5    -      -       -      +
    216A  ASP      4.1     3.0    +      -       -      -
    218A  VAL*     3.1    40.5    -      -       -      +
    220A  PHE*     4.0    12.3    -      -       +      -
    254A  LEU*     3.7    11.8    -      -       -      +
    258A  TYR      2.9    28.3    -      -       -      +
    259A  VAL*     3.9     3.4    -      -       -      -
    260A  ASP*     2.8    43.1    +      -       -      +
    261A  TYR      3.4     2.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 4 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  GLY      3.3    24.2    -      -       -      +
      3A  ASN*     1.3    74.2    -      -       -      +
      5A  VAL*     1.3    72.9    +      -       -      +
      6A  VAL*     4.4     4.9    -      -       +      -
     23A  LEU*     5.5     0.2    -      -       +      -
    218A  VAL      2.9     6.9    +      -       -      +
    219A  MET*     3.2    24.1    -      -       +      +
    220A  PHE*     2.8    26.2    +      -       -      -
    261A  TYR*     3.4    15.3    -      -       +      +
    263A  LEU*     4.7     0.4    -      -       +      -
    428A  PRO*     3.7    36.6    -      -       +      +
    429A  PHE*     3.6    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 5 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  ASN      4.8     0.7    -      -       -      +
      4A  VAL*     1.3    78.5    -      -       -      +
      6A  VAL*     1.3    59.6    +      -       -      +
      7A  LEU*     3.8    24.9    -      -       +      -
     33A  TYR*     4.0     6.3    -      -       -      +
    220A  PHE*     3.7    17.3    -      -       +      +
    245A  ALA*     4.9     2.7    -      -       +      -
    248A  VAL*     3.5    35.0    -      -       +      -
    259A  VAL*     3.6    30.3    -      -       +      -
    261A  TYR      2.8     9.6    +      -       -      +
    262A  VAL*     3.4     7.8    -      -       +      -
    263A  LEU*     2.5    36.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 6 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  VAL*     4.4     1.6    -      -       +      -
      5A  VAL*     1.3    76.2    -      -       -      +
      7A  LEU*     1.3    58.6    +      -       -      +
     16A  LYS*     4.0     8.3    -      -       +      +
     19A  ILE*     4.7     3.8    -      -       +      -
     20A  VAL*     3.9    23.8    -      -       +      -
     23A  LEU*     4.4     7.6    -      -       +      -
     33A  TYR*     4.0     0.9    +      -       -      -
    219A  MET*     4.0    31.2    -      -       +      -
    220A  PHE      2.8    14.1    +      -       -      +
    222A  GLY*     2.6    33.8    +      -       -      -
    263A  LEU*     3.4    19.5    -      -       +      -
    265A  ILE*     3.6    29.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 7 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  VAL*     3.8    18.6    -      -       +      -
      6A  VAL*     1.3    76.0    -      -       -      +
      8A  GLY*     1.3    64.8    +      -       -      +
      9A  THR*     4.7     0.9    -      -       +      -
     16A  LYS*     3.8     9.6    -      -       -      -
     33A  TYR*     3.7    13.7    -      -       -      +
    222A  GLY*     4.3     4.0    -      -       -      -
    243A  THR      4.1    13.2    -      -       -      +
    245A  ALA*     3.6    38.4    -      -       +      +
    262A  VAL*     4.0    13.2    -      -       +      -
    263A  LEU      3.0    17.1    +      -       -      +
    264A  GLY*     3.3    11.6    -      -       -      -
    265A  ILE*     2.7    33.8    +      -       -      +
    322A  ASN*     3.9    17.0    -      -       -      +
    324A  LEU*     4.3     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 8 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  LEU*     1.3    79.0    -      -       -      +
      9A  THR*     1.3    60.4    +      -       -      -
     10A  GLN      3.4     2.5    -      -       -      -
     14A  GLU*     3.2    31.4    -      -       -      -
     16A  LYS*     3.3    12.9    -      -       -      +
    222A  GLY*     5.3     0.2    -      -       -      -
    224A  GLN      4.0     6.4    +      -       -      -
    225A  GLY*     3.4     0.5    -      -       -      -
    226A  THR*     2.9    26.9    +      -       -      -
    243A  THR      5.0     0.5    +      -       -      +
    265A  ILE      4.0     1.1    -      -       -      -
----------------------------------------------------------
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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