Contacts of the strand formed by residues 519 - 523 (chain B) in PDB entry 1M7X


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 PHE 519 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    479B  TYR*     4.7     0.3    -      -       -      -
    480B  LYS*     3.1    39.5    -      -       +      -
    481B  TRP      4.0     0.7    -      -       -      -
    482B  ASN*     3.3    44.0    -      -       +      +
    513B  TYR*     3.4    46.4    -      +       -      -
    514B  ASN*     4.0    18.4    -      -       -      +
    516B  THR*     4.6     1.1    -      -       -      -
    517B  GLU*     3.2    43.8    +      -       +      -
    518B  ASN*     1.3    77.2    -      -       -      +
    520B  VAL*     1.3    62.7    +      -       -      +
    521B  LEU*     4.1     1.3    -      -       +      -
    562B  GLY*     3.4     8.0    -      -       -      -
    563B  LYS*     3.0    25.1    +      -       -      +
    621B  PHE*     3.7     7.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 520 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245B  ILE*     4.6     8.3    -      -       +      -
    456B  MET*     4.2    14.6    -      -       +      -
    479B  TYR*     3.9    25.8    -      -       +      -
    480B  LYS      2.9     7.0    +      -       -      +
    481B  TRP*     4.0    25.1    -      -       +      +
    482B  ASN*     2.8    27.0    +      -       -      +
    519B  PHE*     1.3    77.6    -      -       -      +
    521B  LEU*     1.3    64.1    +      -       -      +
    522B  PRO*     2.8     5.7    -      -       +      +
    563B  LYS*     3.5    20.0    -      -       +      +
    564B  LYS      4.4     2.5    -      -       -      -
    565B  LEU*     3.7    29.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 521 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482B  ASN*     3.9    21.5    -      -       +      +
    485B  TRP*     3.9    42.4    -      -       +      -
    519B  PHE*     4.9     0.9    -      -       +      -
    520B  VAL*     1.3    71.7    -      -       -      +
    522B  PRO*     1.3    63.1    -      -       -      +
    557B  MET*     3.3    36.3    -      -       +      +
    560B  PHE*     3.5    27.8    -      -       +      +
    561B  PRO      3.6    17.3    -      -       -      +
    562B  GLY*     4.1     5.6    -      -       -      +
    563B  LYS      2.6    19.0    +      -       -      +
    564B  LYS*     4.5     1.3    -      -       +      +
    565B  LEU      3.0    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 522 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481B  TRP*     4.1    41.3    -      -       +      -
    482B  ASN      3.5    22.7    -      -       -      +
    483B  LEU*     4.9     5.2    -      -       +      +
    485B  TRP*     4.5     1.9    -      -       +      -
    486B  MET*     3.3    21.5    -      -       +      +
    520B  VAL*     2.8    20.2    -      -       +      +
    521B  LEU*     1.3    80.3    -      -       -      +
    523B  LEU*     1.3    74.4    +      -       -      +
    524B  SER*     3.5     4.4    +      -       -      +
    565B  LEU*     3.6    19.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 523 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485B  TRP*     3.9    12.1    -      -       +      -
    486B  MET*     4.3    10.5    -      -       +      -
    490B  LEU*     4.7     2.9    -      -       +      -
    522B  PRO*     1.3    85.0    -      -       -      +
    524B  SER*     1.3    64.0    +      -       -      +
    527B  GLU*     5.2     3.4    -      -       -      -
    535B  ILE*     4.4    19.3    -      -       +      -
    553B  TYR*     3.7    29.2    -      -       +      +
    554B  TYR*     3.7    25.8    -      -       +      -
    557B  MET*     3.4    25.1    -      -       -      -
    565B  LEU*     3.1    14.9    +      -       -      +
    566B  LEU*     3.7     8.5    -      -       +      -
    567B  PHE*     3.1    21.8    +      -       -      +
    570B  ASN*     3.3    16.0    -      -       -      +
----------------------------------------------------------
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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