Contacts of the strand formed by residues 321 - 324 (chain C) in PDB entry 2DB3


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 VAL 321 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303C  ILE*     3.6    33.2    -      -       +      -
    307C  LEU*     3.8    22.9    -      -       +      -
    319C  PRO*     4.0     2.6    -      -       -      +
    320C  GLN*     1.3    84.8    -      -       -      +
    322C  VAL*     1.3    67.7    +      -       -      +
    323C  ILE*     3.9    24.9    -      -       +      -
    370C  HIS      2.9     7.6    +      -       -      +
    371C  VAL*     3.6    13.4    -      -       +      -
    372C  VAL*     2.9    27.4    +      -       -      -
    395C  PHE*     3.4    25.4    -      -       +      +
    397C  VAL*     5.0     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 322 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319C  PRO*     3.8    17.9    -      -       +      -
    321C  VAL*     1.3    77.6    -      -       -      +
    323C  ILE*     1.3    56.8    +      -       -      +
    324C  VAL*     4.0    21.3    -      -       +      -
    372C  VAL*     3.5     8.7    -      -       +      +
    374C  ALA*     5.8     2.0    -      -       +      -
    379C  LEU*     4.1    19.3    -      -       +      -
    388C  ILE*     5.9     0.2    -      -       +      -
    390C  PHE*     3.7    29.6    -      -       +      -
    393C  THR*     3.9     9.9    -      -       +      +
    395C  PHE      2.9    12.6    +      -       -      +
    396C  VAL*     3.2    13.2    -      -       +      +
    397C  VAL      2.8    31.9    +      -       -      +
    416C  ILE*     5.1     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 323 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299C  PHE*     3.9    14.4    -      -       +      -
    300C  LEU*     3.7    28.9    -      -       +      -
    303C  ILE*     5.6     1.6    -      -       +      -
    321C  VAL*     3.9    14.1    -      -       +      -
    322C  VAL*     1.3    75.2    -      -       -      +
    324C  VAL*     1.3    63.2    +      -       -      +
    334C  ILE*     4.2    25.8    -      -       +      -
    371C  VAL*     4.1    19.5    -      -       +      -
    372C  VAL      3.0     7.4    +      -       -      +
    373C  ILE*     3.3    17.3    -      -       +      +
    374C  ALA*     2.8    32.1    +      -       -      +
    397C  VAL*     3.4    31.0    -      -       +      +
    399C  ASP*     4.9     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 324 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322C  VAL*     4.0    20.2    -      -       +      -
    323C  ILE*     1.3    77.2    -      -       -      +
    325C  SER*     1.3    63.0    +      -       -      +
    374C  ALA      3.3     7.4    -      -       -      +
    376C  PRO*     3.9    15.3    -      -       +      -
    379C  LEU*     4.2    15.3    -      -       +      -
    396C  VAL*     5.6     2.7    -      -       +      -
    397C  VAL      2.8    14.9    +      -       -      +
    398C  LEU*     4.1    13.8    -      -       +      -
    399C  ASP*     3.2    30.7    +      -       -      +
    404C  MET*     3.2    30.0    -      -       +      +
    413C  MET*     3.9     8.3    -      -       +      -
    416C  ILE*     4.6     9.4    -      -       +      -
----------------------------------------------------------
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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