Contacts of the strand formed by residues 519 - 523 (chain D) 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 D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    479D  TYR*     4.4     0.3    -      -       -      -
    480D  LYS*     3.1    32.1    -      -       +      -
    481D  TRP      3.9     0.9    -      -       -      -
    482D  ASN*     3.3    44.6    -      -       +      +
    513D  TYR*     3.5    50.0    -      +       -      -
    514D  ASN*     4.0    15.7    -      -       -      +
    516D  THR*     4.5     0.4    -      -       -      -
    517D  GLU*     3.3    44.6    +      -       +      -
    518D  ASN*     1.3    74.1    -      -       -      +
    520D  VAL*     1.3    63.9    +      -       -      +
    521D  LEU*     4.1     5.4    -      -       +      -
    561D  PRO      5.4     0.4    -      -       -      +
    562D  GLY*     3.4     7.4    -      -       -      -
    563D  LYS*     3.0    25.6    +      -       -      +
    621D  PHE*     3.6     7.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 520 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243D  ILE*     6.3     0.2    -      -       +      -
    245D  ILE*     4.2    13.9    -      -       +      -
    456D  MET*     4.2    12.1    -      -       -      -
    479D  TYR*     3.9    31.4    -      -       +      -
    480D  LYS      3.0     8.4    +      -       -      +
    481D  TRP*     3.7    20.6    -      -       +      +
    482D  ASN*     2.9    13.9    +      -       -      +
    519D  PHE*     1.3    78.4    -      -       -      +
    521D  LEU*     1.3    61.8    +      -       -      +
    522D  PRO*     2.9    16.6    -      -       -      +
    563D  LYS*     3.5    17.3    -      -       +      +
    565D  LEU*     3.8    29.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 521 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482D  ASN*     4.1    15.7    -      -       +      +
    485D  TRP*     3.7    48.5    -      -       +      -
    519D  PHE*     4.8     1.3    -      -       +      -
    520D  VAL*     1.3    71.9    -      -       -      +
    522D  PRO*     1.4    61.9    -      -       -      +
    557D  MET*     3.1    48.0    -      -       +      +
    560D  PHE*     3.7    27.8    -      -       +      +
    561D  PRO      3.6    17.5    -      -       -      +
    562D  GLY*     4.4     3.8    -      -       -      -
    563D  LYS      2.6    17.0    +      -       -      +
    564D  LYS*     3.8     3.1    -      -       -      +
    565D  LEU      3.1    13.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 522 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481D  TRP*     4.0    35.9    -      -       +      -
    482D  ASN      3.3    30.1    -      -       -      +
    483D  LEU*     4.8     4.9    -      -       +      -
    485D  TRP*     4.5     3.7    -      -       +      -
    486D  MET*     3.2    27.3    -      -       +      +
    520D  VAL      2.9    17.7    -      -       -      +
    521D  LEU*     1.4    79.3    -      -       -      +
    523D  LEU*     1.3    65.2    +      -       -      +
    524D  SER*     3.6     4.9    +      -       -      +
    565D  LEU*     3.7    18.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 523 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485D  TRP*     4.2     6.5    -      -       +      -
    486D  MET*     4.2    13.5    -      -       +      -
    490D  LEU*     4.2     8.3    -      -       +      -
    521D  LEU      4.1     0.2    +      -       -      -
    522D  PRO*     1.3    82.8    -      -       -      +
    524D  SER*     1.3    55.5    +      -       -      +
    527D  GLU*     5.3     2.5    -      -       +      -
    535D  ILE*     4.2    19.5    -      -       +      -
    553D  TYR*     3.6    29.8    -      -       +      +
    554D  TYR*     3.8    17.5    -      -       +      +
    557D  MET*     3.5    24.9    -      -       +      +
    565D  LEU*     3.0     9.4    +      -       -      +
    566D  LEU*     3.6    25.7    -      -       +      -
    567D  PHE      2.8    31.7    +      -       -      -
    570D  ASN*     3.2     9.6    -      -       -      +
----------------------------------------------------------
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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