Contacts of the strand formed by residues 871 - 875 (chain D) in PDB entry 5X22


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 LYS 871 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    867D  ARG*     3.4     8.0    -      -       -      +
    868D  TYR      3.1    33.2    +      -       -      +
    869D  MET*     3.0    15.5    +      -       -      +
    870D  GLY*     1.3    83.2    -      -       -      +
    872D  ARG*     1.3    60.9    +      -       -      +
    873D  LEU*     3.7    24.8    +      -       +      +
    897D  TRP*     3.4    33.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 872 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74B  ASP*     3.4    26.1    +      -       -      -
     76B  VAL*     3.9    19.1    -      -       -      +
     77B  GLU*     2.9    49.8    +      -       -      +
     80B  LEU*     4.7     6.4    -      -       +      +
    865D  THR*     3.7    28.9    -      -       +      -
    866D  VAL      3.9     2.5    -      -       -      -
    867D  ARG*     4.4    10.5    -      -       +      +
    870D  GLY      4.2     0.8    +      -       -      -
    871D  LYS*     1.3    71.1    -      -       -      +
    873D  LEU*     1.3    61.9    +      -       -      +
    874D  GLU*     4.2     3.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 873 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    865D  THR*     3.3     6.2    -      -       -      +
    866D  VAL      2.9    38.4    +      -       -      +
    868D  TYR*     4.0    22.2    -      -       +      +
    871D  LYS*     3.8    33.4    -      -       +      +
    872D  ARG*     1.3    75.3    -      -       -      +
    874D  GLU*     1.3    62.8    +      -       -      +
    875D  THR*     3.7    12.3    +      -       +      -
    880D  ILE*     4.5     9.9    -      -       +      -
    897D  TRP*     3.5    30.1    -      -       +      -
    902D  LEU*     3.9    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 874 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    832D  ARG*     5.7     7.5    +      -       -      -
    833D  GLU      5.3     1.4    -      -       -      +
    834D  THR*     4.2     7.3    +      -       -      -
    838D  ARG*     3.2    51.5    +      -       -      +
    839D  LEU*     5.9     1.0    -      -       -      +
    863D  VAL*     4.5     5.8    -      -       -      +
    864D  VAL      3.2     7.9    -      -       -      +
    865D  THR*     3.8    17.2    +      -       +      +
    872D  ARG*     4.2     3.3    +      -       +      +
    873D  LEU*     1.3    73.4    -      -       -      +
    875D  THR*     1.3    61.7    +      -       -      +
    903D  ASP*     4.1     9.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 875 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    795D  VAL*     6.0     0.2    -      -       -      -
    863D  VAL*     4.3     4.7    -      -       -      -
    864D  VAL*     2.7    36.1    +      -       -      +
    866D  VAL*     4.3     4.6    -      -       +      +
    873D  LEU*     3.7    18.8    -      -       +      +
    874D  GLU*     1.3    76.7    -      -       -      +
    876D  SER*     1.3    77.0    +      -       -      +
    879D  ARG*     3.4    30.8    +      -       -      +
    880D  ILE*     3.9    24.5    -      -       +      -
    902D  LEU*     4.5     8.2    -      -       +      +
    903D  ASP*     3.8    12.3    +      -       -      -
----------------------------------------------------------
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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