Contacts of the strand formed by residues 24 - 29 (chain D) in PDB entry 2H5X


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 24 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  ILE*     4.1    24.7    -      -       +      -
      4A  SER      3.6     6.3    -      -       -      +
      5A  VAL*     5.3     3.4    -      -       +      -
     21A  ALA*     4.0     7.6    -      -       +      -
     26A  TYR*     3.5    29.4    -      -       +      +
     20D  GLU*     3.3     1.4    -      -       -      +
     21D  ALA      2.8    34.7    +      -       -      +
     22D  ALA*     3.0    15.7    -      -       +      +
     23D  GLY*     1.3    80.0    -      -       -      +
     25D  GLY*     1.3    60.8    +      -       -      +
     26D  TYR*     3.4    42.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 25 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  ILE*     3.7     3.3    -      -       -      -
      3A  ALA*     2.7    32.6    +      -       -      -
      4A  SER*     2.8    33.4    +      -       -      -
     18D  VAL*     4.2     7.6    -      -       -      -
     19D  ILE      3.4     8.7    -      -       -      -
     20D  GLU*     3.9     8.9    -      -       -      +
     23D  GLY      3.9     1.2    +      -       -      -
     24D  VAL*     1.3    72.9    -      -       -      +
     26D  TYR*     1.3    56.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 26 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     3.3    40.6    -      -       +      +
      2A  ILE*     4.6     6.2    -      -       +      +
      3A  ALA*     4.5     0.7    -      -       -      -
     26A  TYR*     5.2     1.9    +      -       -      -
     24C  VAL*     3.8    28.8    -      -       +      +
     26C  TYR*     5.3     2.1    +      -       -      -
      2D  ILE*     4.1     9.7    -      -       +      +
      5D  VAL*     4.1    20.9    -      -       +      -
     18D  VAL*     3.3     5.1    -      -       -      -
     19D  ILE      2.9    34.6    +      -       -      +
     21D  ALA*     4.1     7.8    +      -       +      -
     24D  VAL*     3.4    46.9    -      -       +      +
     25D  GLY*     1.3    72.0    -      -       -      -
     27D  ARG*     1.3    62.0    +      -       -      +
     28D  VAL*     3.3     5.2    +      -       +      +
     59D  LEU*     4.1    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 27 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     2.9    28.1    +      -       -      +
      3A  ALA*     4.1    17.2    -      -       +      +
     68A  ARG*     5.6     5.7    -      -       -      +
     15D  ASP*     3.8    12.1    +      -       -      -
     16D  HIS*     3.2    56.5    +      -       +      +
     17D  VAL      3.4     4.3    -      -       -      -
     18D  VAL*     4.6     2.0    -      -       +      +
     25D  GLY      4.0     1.2    +      -       -      -
     26D  TYR*     1.3    70.7    -      -       -      +
     28D  VAL*     1.3    60.7    +      -       -      +
     29D  ASN*     3.2    28.0    +      -       -      +
     58D  THR*     5.7     0.8    -      -       -      +
     59D  LEU*     3.7    21.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 28 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5D  VAL*     4.6     6.3    -      -       +      -
     16D  HIS*     3.3     2.2    -      -       -      -
     17D  VAL*     2.7    46.0    +      -       +      +
     19D  ILE*     4.6    17.0    -      -       +      -
     26D  TYR*     4.0    12.8    -      -       +      +
     27D  ARG*     1.3    76.8    -      -       -      +
     29D  ASN*     1.3    61.0    +      -       -      +
     30D  ALA*     3.7     0.5    +      -       -      +
     46D  LEU*     3.8    15.9    -      -       +      -
     48D  THR*     3.8    14.6    -      -       +      -
     59D  LEU*     3.9    18.2    -      -       +      +
     60D  TYR      3.9     1.3    -      -       -      +
     61D  GLY*     3.1    38.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 29 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15D  ASP*     3.8     6.5    -      -       -      +
     16D  HIS*     3.6     8.4    -      -       -      +
     27D  ARG*     3.2    38.1    +      -       -      +
     28D  VAL*     1.3    72.6    -      -       -      +
     30D  ALA*     1.3    58.4    +      -       -      +
     58D  THR*     2.9    35.4    -      -       -      +
     59D  LEU      3.0    16.8    +      -       -      +
     60D  TYR*     3.4    20.3    -      -       +      -
     61D  GLY      2.7    27.5    +      -       -      -
     86D  MET*     4.1     6.4    -      -       +      +
----------------------------------------------------------
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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