Contacts of the strand formed by residues 917 - 922 (chain B) in PDB entry 1ED8


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 LEU 917 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  ASP*     5.6     0.2    -      -       -      -
    553B  MET      4.8     1.6    -      -       -      +
    554B  GLY*     4.1    13.9    -      -       -      -
    555B  ASP*     3.4    11.9    -      -       -      +
    583B  GLN*     3.3     7.8    -      -       -      -
    584B  TYR*     3.1    37.7    +      -       +      -
    586B  HIS*     3.8    11.4    -      -       +      +
    867B  THR*     3.7    12.3    -      -       -      +
    868B  ALA*     4.0    15.5    -      -       +      +
    870B  HIS*     3.2    45.3    -      -       -      +
    871B  ALA*     3.4    10.5    -      -       +      +
    915B  SER      4.2     0.4    -      -       -      +
    916B  GLN*     1.3    78.4    -      -       -      +
    918B  ARG*     1.3    80.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 918 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  GLN*     3.4    31.6    +      -       -      +
    416A  GLN*     4.3     7.5    -      -       -      +
    432A  LEU*     5.8     4.6    -      -       -      +
    553B  MET*     5.4     2.2    +      -       -      +
    555B  ASP*     3.0    24.1    +      -       -      +
    558B  ILE*     4.1    21.6    -      -       +      +
    575B  ILE*     2.7    45.6    +      -       -      +
    576B  ASP*     3.7    20.4    +      -       -      +
    578B  LEU*     4.4     4.2    +      -       -      +
    581B  THR*     4.0     8.3    -      -       -      +
    582B  GLY      3.4     6.5    -      -       -      -
    583B  GLN*     5.1     0.2    -      -       -      +
    866B  VAL*     4.7    11.4    +      -       -      +
    867B  THR*     3.0    22.4    +      -       -      -
    917B  LEU*     1.3    82.9    -      -       -      +
    919B  ILE*     1.3    68.6    +      -       -      +
    920B  ALA*     3.6    24.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 919 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581B  THR*     3.4     2.4    -      -       -      -
    582B  GLY      2.8    42.4    +      -       -      +
    583B  GLN      4.1     0.7    -      -       -      +
    584B  TYR*     3.9    44.6    -      -       +      +
    865B  ILE*     4.0    17.9    -      -       +      -
    866B  VAL      3.8     2.9    -      -       -      -
    867B  THR*     3.7    18.6    -      -       +      +
    918B  ARG*     1.3    74.7    -      -       -      +
    920B  ALA*     1.3    65.0    +      -       -      +
    929B  VAL*     3.8    45.7    -      -       +      +
    933B  THR*     4.6     4.5    -      -       -      +
    938B  LEU*     4.4    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 920 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578B  LEU*     3.8    16.3    -      -       +      +
    580B  LEU      3.3     9.9    -      -       -      +
    581B  THR*     3.9     4.0    -      -       +      -
    865B  ILE*     3.4     2.8    -      -       -      +
    866B  VAL      2.7    38.6    +      -       -      +
    918B  ARG*     3.6    38.8    -      -       -      +
    919B  ILE*     1.3    78.6    -      -       -      +
    921B  ALA*     1.3    64.3    +      -       -      +
    929B  VAL*     4.4     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 921 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578B  LEU*     3.8     5.8    -      -       -      +
    579B  PRO*     3.5     5.2    -      -       -      +
    580B  LEU*     2.8    38.1    +      -       -      +
    863B  LEU*     4.2     1.3    -      -       +      -
    864B  VAL      3.1    13.2    -      -       -      +
    865B  ILE*     3.8    15.5    -      -       +      -
    920B  ALA*     1.3    77.5    -      -       -      +
    922B  TYR*     1.3    61.7    +      -       -      +
    926B  ALA*     3.6    21.8    -      -       +      -
    929B  VAL*     3.9    17.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 922 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    504B  MET*     2.2    47.9    +      -       +      +
    505B  PRO      3.2    30.5    -      -       -      -
    506B  VAL*     3.7    13.2    -      -       +      -
    536B  SER*     6.4     0.4    -      -       -      -
    578B  LEU*     4.1     4.7    -      -       +      -
    579B  PRO*     3.9    19.1    -      -       +      -
    580B  LEU*     5.3     0.4    -      -       -      -
    853B  LEU*     4.0    26.2    -      -       +      -
    856B  ALA*     4.0    33.2    +      -       +      -
    857B  LYS*     3.8    16.3    +      -       +      +
    862B  THR      3.4     2.1    -      -       -      +
    863B  LEU*     3.5     1.2    -      -       -      +
    864B  VAL*     2.8    36.3    +      -       +      +
    921B  ALA*     1.3    76.3    -      -       -      +
    923B  GLY*     1.3    68.4    +      -       -      +
    926B  ALA*     4.1     4.3    -      -       -      -
----------------------------------------------------------
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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