Contacts of the strand formed by residues 71 - 74 (chain A) in PDB entry 2DMZ


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 ILE 71 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ILE*     5.8     1.6    -      -       +      -
     33A  ILE*     4.9     7.0    -      -       +      -
     48A  ILE*     3.1    33.3    +      -       +      +
     49A  TYR      4.0     2.5    -      -       -      -
     50A  VAL*     3.4    41.1    -      -       +      +
     65A  ILE*     5.9     0.2    -      -       +      -
     69A  ASP      3.9     2.0    -      -       -      +
     70A  LYS*     1.3    75.0    -      -       -      +
     72A  VAL*     1.3    62.5    +      -       -      +
     73A  ALA      3.7     9.0    -      -       -      +
     74A  VAL*     3.7     8.3    -      -       +      -
     79A  ILE*     3.4    34.3    -      -       +      +
     80A  GLN*     5.4     1.2    -      -       -      +
    100A  LEU*     3.4    35.2    -      -       +      -
    101A  THR      3.5     3.6    -      -       -      -
    102A  LEU*     4.6     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  THR*     4.5     9.6    -      -       +      +
     70A  LYS*     3.4    35.9    -      -       -      +
     71A  ILE*     1.3    73.2    -      -       -      +
     73A  ALA*     1.3    62.5    +      -       +      +
     78A  ASN*     3.8     2.1    +      -       -      +
     79A  ILE*     3.2     4.8    +      -       -      -
     80A  GLN*     3.1    51.2    +      -       +      +
    101A  THR*     2.9    36.8    +      -       +      +
    102A  LEU      4.6     0.4    -      -       -      +
    103A  VAL*     3.8    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  ILE      3.6     1.0    -      -       -      -
     72A  VAL*     1.3    84.9    -      -       +      +
     74A  VAL*     1.3    59.7    +      -       -      +
     76A  GLY*     4.4     8.5    -      -       -      +
     77A  VAL      2.9    21.1    -      -       -      +
     78A  ASN*     3.9     9.9    -      -       -      +
     79A  ILE*     3.8     2.9    -      -       -      +
    100A  LEU*     3.5     3.5    -      -       -      +
    101A  THR*     2.7    52.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  ILE*     3.7    19.3    -      -       +      -
     73A  ALA*     1.3    73.1    -      -       -      +
     75A  ASP*     1.3    93.2    +      -       +      +
     76A  GLY      3.0     0.4    -      -       -      -
     77A  VAL*     2.7    30.8    +      -       -      +
     79A  ILE*     4.0    15.7    -      -       +      -
     87A  VAL*     4.5     5.6    -      -       +      -
     90A  VAL*     3.9    14.6    -      -       +      -
     91A  LEU*     3.6    31.9    -      -       +      -
     94A  ALA*     5.1     0.2    -      -       +      -
     98A  VAL*     4.4     6.7    -      -       +      -
     99A  HIS      4.1     0.4    -      -       -      -
    100A  LEU*     4.0    17.5    -      -       +      -
----------------------------------------------------------
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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