Contacts of the strand formed by residues 52 - 62 (chain L) in PDB entry 1I5L


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 GLU 52 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48L  ILE*     3.5     6.6    -      -       -      +
     49L  GLN*     3.2    35.7    +      -       +      +
     50L  ASN*     2.9    17.1    +      -       +      +
     51L  GLY*     1.3    77.7    -      -       -      +
     53L  VAL*     1.3    69.2    +      -       +      +
     54L  VAL      4.2     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 53 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46L  GLU*     4.4    23.8    -      -       +      +
     47L  GLU      3.5     8.7    -      -       -      +
     48L  ILE*     4.7     8.5    -      -       +      -
     51L  GLY      5.0     2.0    -      -       -      +
     52L  GLU*     1.3    85.9    -      -       +      +
     54L  VAL*     1.3    63.7    +      -       -      +
     55L  ARG*     4.5     9.2    -      -       -      +
     56L  LYS*     6.2     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 54 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20K  ARG*     5.4     1.3    -      -       -      +
     25L  ARG*     3.9    11.9    -      -       -      +
     47L  GLU*     2.8    44.4    +      -       +      +
     49L  GLN*     3.6    41.5    -      -       +      +
     52L  GLU      5.8     0.2    -      -       -      -
     53L  VAL*     1.3    75.1    -      -       -      +
     55L  ARG*     1.3    71.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 55 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18K  ILE*     3.9    28.3    -      -       -      +
     20K  ARG*     5.3     0.6    -      -       -      +
     26K  GLU*     3.7    26.9    +      -       -      -
     28K  ARG*     5.6     2.8    -      -       -      +
     69K  PHE*     3.0    39.4    -      -       -      -
     71K  SER*     5.6     0.2    -      -       -      -
     46L  GLU*     3.5     5.0    -      -       -      +
     47L  GLU*     3.0    46.4    +      -       +      +
     53L  VAL*     3.4     6.9    -      -       -      +
     54L  VAL*     1.3    89.3    -      -       -      +
     56L  LYS*     1.3    72.5    +      -       -      +
     57L  VAL*     4.9    12.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 56 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45L  ALA      3.6     5.4    -      -       -      +
     46L  GLU*     2.8    40.8    +      -       +      +
     53L  VAL*     6.2     5.8    -      -       +      -
     55L  ARG*     1.3    83.4    -      -       -      +
     57L  VAL*     1.3    74.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 57 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18K  ILE*     5.9     4.7    -      -       +      -
     69K  PHE*     6.1     0.9    -      -       +      -
     71K  SER*     3.3    26.9    -      -       -      +
     72K  PRO      5.1     4.3    -      -       -      +
     27L  PHE*     4.5     9.2    -      -       +      -
     44L  ASP*     3.5     3.5    -      -       -      -
     45L  ALA*     3.1    36.6    +      -       +      +
     46L  GLU*     5.7     0.4    -      -       -      -
     55L  ARG*     4.9    18.4    -      -       +      +
     56L  LYS*     1.3    87.0    -      -       -      +
     58L  GLY*     1.3    65.4    +      -       -      +
     59L  SER*     4.0     5.2    -      -       -      +
     60L  VAL*     3.7    25.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 58 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72K  PRO*     5.3     7.0    +      -       -      +
     43L  LEU*     3.4     3.8    -      -       -      +
     44L  ASP*     2.6    34.2    +      -       -      +
     57L  VAL*     1.3    73.5    -      -       -      +
     59L  SER*     1.3    64.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 59 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8K  VAL*     5.2     9.9    -      -       -      +
     71K  SER*     3.0    22.5    +      -       -      -
     72K  PRO*     3.0    28.6    -      -       -      +
     41L  VAL*     5.2     4.5    -      -       -      -
     42L  LEU      3.0    15.5    -      -       -      -
     43L  LEU*     3.6    15.5    -      -       -      +
     45L  ALA      5.5     0.4    -      -       -      +
     57L  VAL*     3.1     5.0    -      -       -      +
     58L  GLY*     1.3    82.4    -      -       -      +
     60L  VAL*     1.3    65.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 60 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69K  PHE*     4.2    12.8    -      -       +      -
     70K  VAL      3.5     4.9    -      -       -      +
     71K  SER*     3.4    23.1    -      -       -      +
     72K  PRO*     5.1     0.4    -      -       -      -
     27L  PHE*     3.7    35.0    -      -       +      -
     40L  LEU      3.6     1.2    -      -       -      +
     41L  VAL*     3.2     7.5    -      -       -      -
     42L  LEU*     3.1    42.9    +      -       +      +
     45L  ALA*     4.8     1.3    -      -       +      -
     57L  VAL*     3.7    15.7    -      -       +      -
     59L  SER*     1.3    85.3    -      -       -      +
     61L  VAL*     1.3    66.5    +      -       -      +
     62L  ILE*     3.9    11.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 61 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5K  PRO*     4.1    27.4    -      -       +      +
      8K  VAL*     4.0    26.9    -      -       +      -
      9K  LEU*     4.1    29.8    -      -       +      -
     38K  MET*     4.7    21.3    -      -       +      +
     69K  PHE*     3.2     6.2    -      -       -      +
     70K  VAL*     3.0    34.1    +      -       +      +
     39L  ASN*     5.4     0.2    -      -       +      -
     40L  LEU      3.3     8.5    -      -       -      +
     41L  VAL*     4.5     4.3    -      -       +      -
     60L  VAL*     1.3    76.5    -      -       -      +
     62L  ILE*     1.3    61.1    +      -       -      +
     63L  ARG      4.1     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 62 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68K  VAL      3.7     8.1    -      -       -      +
     69K  PHE*     4.4     8.5    -      -       +      -
     19L  VAL*     4.2    16.8    -      -       +      -
     21L  LEU*     4.0    14.8    -      -       +      -
     27L  PHE*     4.1    25.8    -      -       +      -
     38L  MET      4.5     0.2    -      -       -      +
     39L  ASN*     3.3     5.9    -      -       -      +
     40L  LEU*     2.9    39.1    +      -       +      +
     42L  LEU*     4.2    22.2    -      -       +      -
     60L  VAL*     4.4    13.5    -      -       +      +
     61L  VAL*     1.3    77.5    -      -       -      +
     63L  ARG*     1.3    75.4    +      -       -      +
     64L  GLY*     4.2     0.2    -      -       -      -
     66L  THR*     4.8     1.1    -      -       -      -
     67L  VAL*     3.9    19.3    -      -       +      -
----------------------------------------------------------
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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