Contacts of the strand formed by residues 64 - 73 (chain I) in PDB entry 4XLN


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 64 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54I  ILE      3.6     1.3    -      -       -      +
     55I  GLU*     3.3    29.6    +      -       -      +
     56I  GLU      3.8     5.9    +      -       -      -
     63I  GLY*     1.3    75.3    -      -       -      +
     65I  VAL*     1.3    65.7    +      -       -      +
     66I  LEU*     4.3     1.6    -      -       +      +
    100I  LEU*     3.6    38.4    -      -       +      -
    101I  ILE      3.3    33.9    -      -       -      +
    102I  HIS*     3.7    18.4    -      -       +      +
    103I  LYS*     4.7     4.6    -      -       -      +
    359I  MET*     3.6    42.7    -      -       +      +
    372I  LEU*     3.9     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 65 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53I  PRO*     3.9    26.7    -      -       +      -
     54I  ILE      3.4     4.0    -      -       -      +
     55I  GLU*     4.1    15.0    -      -       +      -
     64I  LEU*     1.3    76.2    -      -       -      +
     66I  LEU*     1.3    63.7    +      -       -      +
     67I  ASP*     4.9     6.7    -      -       +      +
    101I  ILE*     2.9    64.8    +      -       +      +
    103I  LYS*     4.7    16.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 66 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52I  PHE*     3.2    15.3    -      -       +      -
     53I  PRO*     3.3     3.7    -      -       -      +
     54I  ILE*     2.9    47.3    +      -       +      +
     64I  LEU*     4.3     3.3    -      -       +      +
     65I  VAL*     1.3    72.5    -      -       -      +
     67I  ASP*     1.3    59.5    +      -       -      +
     98I  LEU*     3.6    35.2    -      -       +      -
     99I  GLN      3.3    21.5    -      -       -      +
    100I  LEU*     3.8     9.4    -      -       +      +
    355I  VAL*     4.0    23.3    -      -       +      -
    359I  MET*     5.7     0.2    -      -       -      -
    369I  PRO*     4.3     3.6    -      -       +      -
    372I  LEU*     3.7    35.2    -      -       +      -
    373I  VAL*     5.1     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 67 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52I  PHE*     3.5     7.0    -      -       -      +
     53I  PRO*     3.8    24.7    -      -       +      +
     65I  VAL*     3.9     6.7    +      -       +      +
     66I  LEU*     1.3    71.8    -      -       -      +
     68I  PHE*     1.3    77.3    +      -       -      +
     98I  LEU*     3.2     7.8    -      -       -      +
     99I  GLN*     2.9    60.3    +      -       +      +
    101I  ILE*     4.8     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 68 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45I  GLN*     3.9    24.2    -      -       +      -
     48I  PHE*     3.5    53.6    -      +       +      -
     49I  LYS*     4.8    11.2    -      -       +      -
     52I  PHE*     3.3    38.8    -      +       +      -
     67I  ASP*     1.3    89.0    +      -       -      +
     69I  LEU*     1.3    82.7    +      -       -      +
     70I  GLU*     3.6    33.7    -      -       -      -
     71I  TYR      4.4     0.4    -      -       -      -
     96I  ALA*     5.9     1.1    -      -       +      -
     97I  ARG      4.1     5.4    -      -       -      -
     98I  LEU*     5.5     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 69 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36I  PRO      4.9     4.7    -      -       -      +
     45I  GLN*     5.3     0.3    -      -       -      +
     68I  PHE*     1.3    97.9    -      -       -      +
     70I  GLU*     1.3    70.4    +      -       +      +
     97I  ARG*     2.9    36.8    +      -       +      +
     98I  LEU*     3.6    19.1    -      -       -      +
     99I  GLN*     3.6    25.1    -      -       +      +
    110I  GLU*     3.3    34.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 70 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36I  PRO*     3.2    41.3    -      -       +      +
     39I  ARG*     3.8     4.9    -      -       -      +
     45I  GLN*     4.9     0.9    -      -       -      +
     68I  PHE*     3.6    19.8    -      -       -      -
     69I  LEU*     1.3    86.5    -      -       -      +
     71I  TYR*     1.3    62.3    +      -       -      +
     96I  ALA*     3.7     0.5    -      -       -      -
     97I  ARG*     2.6    57.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 71 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30I  LEU      2.5    29.5    +      -       -      -
     31I  GLN*     3.4    14.1    +      -       -      +
     36I  PRO*     5.7     0.2    -      -       -      +
     39I  ARG*     3.0    51.8    +      -       -      -
     44I  ILE*     3.2    23.9    -      -       +      +
     45I  GLN*     3.1    31.1    +      -       -      -
     48I  PHE*     3.7    33.7    -      +       +      -
     68I  PHE*     4.5     0.4    -      +       -      -
     70I  GLU*     1.3    80.5    -      -       -      +
     72I  ARG*     1.3    59.0    +      -       -      +
     73I  ILE*     3.9    15.7    -      -       +      -
     94I  LEU*     3.7    24.7    -      -       +      -
     95I  TYR      3.5     8.1    -      -       -      +
     96I  ALA*     4.3     2.7    -      -       -      +
     97I  ARG*     4.3     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 72 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71I  TYR*     1.3    72.5    -      -       -      +
     73I  ILE*     1.3    76.7    +      -       +      +
     74I  GLY*     3.6     3.9    +      -       -      -
     75I  ASP*     3.8    22.4    +      -       -      -
     94I  LEU*     3.2    11.2    -      -       -      +
     95I  TYR*     2.5    86.4    +      -       +      +
    112I  GLU*     4.6     9.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 73 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30I  LEU*     5.0     3.4    -      -       +      +
     32I  ALA*     3.3    55.4    -      -       +      +
     33I  ASP*     4.6     5.8    -      -       -      +
     39I  ARG*     5.0     4.2    -      -       -      +
     71I  TYR*     3.9    24.3    +      -       +      -
     72I  ARG*     1.3    80.7    +      -       +      +
     74I  GLY*     1.3    66.4    +      -       -      +
     75I  ASP*     3.9     4.3    +      -       -      +
     94I  LEU*     4.5     7.6    -      -       +      -
----------------------------------------------------------
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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