Contacts of the strand formed by residues 56 - 62 (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 SER 56 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  VAL*     3.0    13.6    -      -       -      +
     51D  ILE      4.4     1.3    +      -       -      -
     53D  ARG*     2.7    57.6    +      -       -      +
     55D  ASP*     1.3    81.8    -      -       -      +
     57D  MET*     1.3    61.9    +      -       -      +
     58D  THR*     4.2    11.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 57 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     3.3    63.2    +      -       +      +
     50A  MET*     4.0    19.5    -      -       +      +
     52A  VAL*     4.3     7.8    -      -       +      +
     57A  MET*     4.0    29.2    -      -       -      +
     57C  MET*     4.2    18.4    -      -       -      +
      1D  MET*     6.4     0.2    -      -       +      -
     50D  MET*     4.2    16.8    -      -       +      -
     51D  ILE      3.5     5.4    -      -       -      -
     52D  VAL*     4.1    21.1    -      -       +      -
     53D  ARG      5.3     0.2    -      -       -      +
     56D  SER*     1.3    78.6    -      -       -      +
     58D  THR*     1.3    60.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 58 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     5.2     1.3    -      -       -      +
     27D  ARG*     5.7     1.1    -      -       -      +
     29D  ASN*     2.9    33.9    -      -       -      +
     49D  ALA      3.7     1.0    -      -       -      +
     50D  MET*     3.6     3.4    -      -       -      +
     51D  ILE*     3.0    36.2    +      -       -      -
     56D  SER*     4.4     9.8    -      -       -      -
     57D  MET*     1.3    80.5    +      -       -      +
     59D  LEU*     1.3    64.8    +      -       -      +
     60D  TYR*     3.5    30.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 59 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     3.8    27.2    -      -       +      +
      2D  ILE*     4.2    17.3    -      -       +      -
      5D  VAL*     4.1    18.4    -      -       +      -
     26D  TYR*     4.1    26.0    -      -       +      -
     27D  ARG      3.7    14.4    +      -       -      +
     28D  VAL*     3.9    12.0    -      -       +      -
     29D  ASN*     3.0    32.9    +      -       -      -
     48D  THR*     4.2     9.6    -      -       +      +
     49D  ALA      3.9     0.7    -      -       -      -
     50D  MET*     3.5    39.9    -      -       +      +
     57D  MET      4.4     0.2    +      -       -      -
     58D  THR*     1.3    75.6    -      -       -      +
     60D  TYR*     1.3    60.0    +      -       -      +
     61D  GLY      4.2     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 60 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28D  VAL*     3.9     1.8    -      -       -      -
     29D  ASN*     3.4    27.4    -      -       +      +
     48D  THR*     3.0     3.8    -      -       -      -
     49D  ALA      2.8    44.1    +      -       -      +
     51D  ILE*     3.6    26.5    -      -       +      -
     58D  THR*     3.5    30.0    +      -       +      +
     59D  LEU*     1.3    73.4    -      -       -      +
     61D  GLY*     1.3    59.3    +      -       -      +
     62D  PHE*     3.3    13.5    -      -       +      -
     71D  PHE*     3.6    22.7    -      +       +      -
     82D  PRO*     3.1    28.5    -      -       +      +
     83D  ARG*     4.7     4.3    +      -       -      +
     86D  MET*     3.6    29.8    -      -       +      -
    504D  GOL      4.8     3.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 61 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28D  VAL*     3.1    21.3    -      -       -      +
     29D  ASN      2.7    13.2    +      -       -      +
     30D  ALA*     3.6    20.3    -      -       -      +
     34D  THR*     4.3     1.4    +      -       -      +
     46D  LEU*     4.1     9.2    -      -       -      -
     47D  ILE      3.1     7.0    -      -       -      -
     48D  THR*     3.7     4.3    -      -       -      -
     60D  TYR*     1.3    72.6    -      -       -      +
     62D  PHE*     1.3    74.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 62 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31D  THR*     5.1     5.6    -      -       +      -
     34D  THR*     4.3     5.2    -      -       -      -
     46D  LEU*     3.5    10.6    -      -       -      +
     47D  ILE*     2.6    42.7    +      -       -      +
     49D  ALA*     4.5     0.2    -      -       +      -
     60D  TYR*     3.3    28.0    -      -       +      -
     61D  GLY*     1.3    78.8    -      -       -      -
     63D  PRO*     1.3    74.8    -      -       +      +
     64D  ASP      3.4     2.6    +      -       -      +
     67D  THR*     3.7    29.2    -      -       +      -
     68D  ARG*     3.5    24.5    -      -       +      +
     71D  PHE*     3.4    41.7    -      +       +      -
     86D  MET*     4.0    14.8    -      -       +      -
     89D  LEU*     3.6    23.6    -      -       +      -
----------------------------------------------------------
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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