Contacts of the strand formed by residues 406 - 413 (chain A) in PDB entry 1EX0


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 MET 406 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269A  LYS*     2.6    40.5    +      -       -      +
    343A  ASP*     5.0     1.8    -      -       -      +
    399A  PRO*     3.9    13.6    -      -       +      +
    400A  GLN*     3.6    26.7    -      -       -      -
    401A  GLU*     3.7    32.2    +      -       +      +
    405A  GLY*     1.3    69.0    -      -       -      -
    407A  TYR*     1.3    60.2    +      -       -      +
     12B  ARG*     3.9    27.6    -      -       -      +
     16B  PRO*     4.9    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 407 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264A  ALA*     6.2     2.9    -      -       +      -
    269A  LYS*     4.1    21.1    -      -       +      +
    398A  THR      4.6     0.2    -      -       -      +
    399A  PRO*     3.6    13.2    -      -       -      +
    400A  GLN      3.1    27.2    +      -       -      +
    402A  ASN*     3.7    13.8    +      -       -      +
    404A  ASP*     3.6    31.8    +      -       +      -
    405A  GLY*     3.2    28.4    +      -       -      -
    406A  MET*     1.3    78.2    -      -       -      +
    408A  ARG*     1.3    86.4    +      -       +      +
    409A  CYS*     3.7     2.4    +      -       -      -
   1340A  PGO      3.4    33.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 408 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260A  ARG*     2.9    56.5    +      -       -      +
    261A  VAL*     5.6     0.6    -      -       -      +
    263A  SER*     3.2    21.1    -      -       -      +
    264A  ALA*     3.5    32.5    -      -       +      +
    269A  LYS*     5.9     0.2    -      -       -      +
    396A  ASP      3.3    15.7    -      -       -      +
    397A  SER*     3.8    17.3    -      -       -      +
    399A  PRO*     4.1     8.3    -      -       +      +
    402A  ASN*     3.2    10.5    +      -       -      +
    404A  ASP*     5.7     0.4    +      -       -      -
    407A  TYR*     1.3    93.7    -      -       +      +
    409A  CYS*     1.3    61.1    +      -       -      +
    410A  GLY      3.9    11.4    -      -       -      -
    427A  ASP*     3.9     0.2    -      -       -      +
   1340A  PGO      3.1    29.5    +      -       -      -
    404B  ASP*     4.0     6.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 409 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394A  ALA      4.3     0.3    -      -       -      +
    395A  VAL*     3.5     4.2    -      -       -      +
    396A  ASP*     2.8    40.4    +      -       +      +
    398A  THR      5.9     0.2    -      -       -      -
    400A  GLN*     3.2    45.5    -      -       -      +
    402A  ASN*     3.7    22.7    -      -       -      -
    407A  TYR      3.9     0.4    -      -       -      -
    408A  ARG*     1.3    79.4    -      -       -      +
    410A  GLY*     1.3    61.1    +      -       -      +
    427A  ASP*     3.3    18.8    -      -       +      -
    430A  PHE*     4.2     4.5    -      -       -      -
    431A  VAL*     4.6    10.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 410 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260A  ARG*     2.9    21.8    +      -       -      -
    263A  SER*     4.8     0.5    +      -       -      -
    394A  ALA      3.6     4.7    -      -       -      -
    395A  VAL*     4.4     4.3    -      -       -      -
    408A  ARG*     3.9     5.9    -      -       -      -
    409A  CYS*     1.3    76.1    -      -       -      +
    411A  PRO*     1.3    76.8    -      -       -      +
    412A  ALA*     3.4     4.0    -      -       -      -
    426A  PHE*     3.3    17.2    +      -       -      -
    427A  ASP*     2.8    11.5    +      -       -      -
    431A  VAL*     5.7     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 411 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256A  ILE*     3.8    34.8    -      -       +      +
    259A  SER*     4.1     9.4    -      -       -      -
    260A  ARG*     3.9    24.0    -      -       -      +
    380A  MET*     5.2     2.2    -      -       +      -
    382A  ARG*     3.1    13.9    +      -       -      +
    393A  GLN*     3.8    21.5    -      -       +      -
    394A  ALA      3.3     6.3    -      -       -      +
    395A  VAL*     3.8    12.1    -      -       +      -
    410A  GLY*     1.3    80.1    -      -       -      +
    412A  ALA*     1.4    59.9    +      -       -      +
    426A  PHE*     2.8    30.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 412 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393A  GLN*     3.8     2.9    -      -       -      -
    394A  ALA*     2.7    43.5    +      -       -      +
    410A  GLY*     3.4     1.0    -      -       -      -
    411A  PRO*     1.4    73.8    -      -       -      +
    413A  SER*     1.3    63.5    +      -       -      +
    414A  VAL      3.1     0.3    +      -       -      -
    417A  ILE*     3.8    20.9    -      -       +      -
    425A  GLN      4.6     0.7    -      -       -      -
    426A  PHE      3.3    21.3    -      -       -      +
    428A  ALA*     4.0    18.2    -      -       +      -
    431A  VAL*     4.3     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 413 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382A  ARG*     4.0     3.4    -      -       -      +
    385A  LEU*     4.2     9.2    -      -       -      -
    389A  PHE*     2.7    38.3    +      -       -      +
    390A  GLY      4.6     0.2    +      -       -      -
    392A  TRP      4.5     0.5    +      -       -      -
    393A  GLN*     3.2    17.6    +      -       -      -
    412A  ALA*     1.3    69.6    -      -       -      +
    414A  VAL*     1.3    63.3    +      -       -      +
    415A  GLN*     3.4     4.7    +      -       -      +
    416A  ALA*     3.2    28.5    +      -       -      +
    417A  ILE*     2.8    24.4    +      -       -      +
    424A  PHE      5.7     1.0    +      -       -      -
    425A  GLN      4.8     2.2    +      -       -      -
    428A  ALA*     5.8     0.8    -      -       -      +
----------------------------------------------------------
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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