Contacts of the strand formed by residues 52 - 62 (chain N) 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 N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48N  ILE*     4.2     1.8    -      -       -      -
     49N  GLN      2.8    35.0    +      -       -      +
     50N  ASN      3.6     0.8    -      -       -      -
     51N  GLY*     1.3    74.4    -      -       -      -
     53N  VAL*     1.3    78.5    +      -       -      +
     54N  VAL*     3.1    11.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 53 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46N  GLU*     4.2    26.0    -      -       +      +
     47N  GLU      3.2     7.9    -      -       -      +
     48N  ILE*     4.2    18.1    -      -       +      +
     51N  GLY      4.1     1.9    +      -       -      +
     52N  GLU*     1.3    82.6    -      -       -      +
     54N  VAL*     1.3    61.3    +      -       -      +
     55N  ARG*     3.5    28.0    -      -       -      +
     56N  LYS*     4.5    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 54 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25N  ARG*     4.5     7.4    -      -       -      -
     47N  GLU*     2.8    49.1    +      -       +      +
     48N  ILE*     4.2     5.4    -      -       -      +
     49N  GLN*     3.9    22.2    -      -       +      +
     52N  GLU*     3.1    16.7    +      -       +      +
     53N  VAL*     1.3    72.6    -      -       -      +
     55N  ARG*     1.3    67.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 55 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18M  ILE*     4.5    23.2    -      -       -      +
     20M  ARG*     5.1     3.0    -      -       -      +
     26M  GLU*     2.7    38.2    +      -       -      -
     51M  GLY      6.1     1.0    -      -       -      +
     69M  PHE*     3.6    18.5    -      -       -      -
     46N  GLU*     3.2     4.5    -      -       -      -
     47N  GLU*     2.8    58.5    +      -       +      +
     53N  VAL*     3.4     8.7    -      -       -      +
     54N  VAL*     1.3    86.0    -      -       -      +
     56N  LYS*     1.3    87.1    +      -       -      +
     57N  VAL*     4.1    13.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 56 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45N  ALA      3.5     6.9    +      -       -      +
     46N  GLU*     2.5    41.9    +      -       +      +
     53N  VAL*     4.5     8.5    -      -       +      -
     55N  ARG*     1.3    84.5    -      -       -      +
     57N  VAL*     1.3    72.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 57 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18M  ILE*     6.5     1.1    -      -       +      -
     69M  PHE*     5.8     3.4    -      -       +      -
     71M  SER*     3.5    23.3    -      -       -      +
     72M  PRO      5.7     2.0    -      -       -      +
     27N  PHE*     4.5     8.3    -      -       +      -
     44N  ASP*     3.6     2.9    -      -       -      -
     45N  ALA*     3.1    38.6    +      -       +      +
     46N  GLU*     5.6     0.4    -      -       -      -
     55N  ARG*     4.1    19.5    -      -       +      +
     56N  LYS*     1.3    85.8    -      -       -      +
     58N  GLY*     1.3    67.5    +      -       -      +
     59N  SER      3.8     2.9    -      -       -      +
     60N  VAL*     3.4    26.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 58 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71M  SER*     5.1     0.2    +      -       -      -
     72M  PRO*     5.4     5.2    +      -       -      +
     43N  LEU*     3.4     4.2    -      -       -      +
     44N  ASP*     2.8    29.1    +      -       -      +
     57N  VAL*     1.3    72.6    -      -       -      +
     59N  SER*     1.3    63.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 59 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8M  VAL*     4.9    11.1    -      -       -      +
     71M  SER*     2.5    31.0    +      -       -      -
     72M  PRO*     3.4    24.3    -      -       -      +
     41N  VAL*     5.3     3.6    -      -       -      -
     42N  LEU      2.9    15.5    -      -       -      -
     43N  LEU*     3.6    18.2    -      -       -      -
     44N  ASP      4.7     0.2    -      -       -      +
     57N  VAL*     3.1     4.2    -      -       -      +
     58N  GLY*     1.3    79.4    -      -       -      +
     60N  VAL*     1.3    62.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 60 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8M  VAL*     6.0     0.2    -      -       -      -
     69M  PHE*     4.4     9.4    -      -       +      -
     70M  VAL      3.6     6.7    -      -       -      +
     71M  SER*     3.4    19.1    -      -       -      +
     72M  PRO*     5.0     0.7    -      -       -      -
     27N  PHE*     4.1    24.9    -      -       +      -
     41N  VAL*     3.2     8.9    -      -       -      +
     42N  LEU*     3.0    54.3    +      -       +      +
     45N  ALA*     4.8     1.3    -      -       +      -
     57N  VAL*     3.4    20.0    -      -       +      -
     59N  SER*     1.3    86.4    -      -       -      +
     61N  VAL*     1.3    67.8    +      -       -      +
     62N  ILE*     4.0     8.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 61 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5M  PRO*     4.1    24.0    -      -       +      +
      8M  VAL*     4.1    31.2    -      -       +      -
      9M  LEU*     4.5    16.4    -      -       +      -
     38M  MET*     4.3    24.1    -      -       +      +
     69M  PHE*     3.3     5.5    -      -       -      +
     70M  VAL*     3.0    41.4    +      -       +      +
     40N  LEU      3.3     8.5    -      -       -      +
     41N  VAL*     4.2     5.6    -      -       +      -
     60N  VAL*     1.3    77.0    -      -       -      +
     62N  ILE*     1.3    66.1    +      -       -      +
     63N  ARG      4.0     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 62 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68M  VAL      3.8     8.7    -      -       -      +
     69M  PHE*     4.5     8.5    -      -       +      -
     19N  VAL*     4.6    12.1    -      -       +      -
     21N  LEU*     4.2    14.6    -      -       +      -
     27N  PHE*     4.2    18.8    -      -       +      -
     38N  MET      4.4     0.2    -      -       -      +
     39N  ASN*     3.2     3.8    -      -       -      +
     40N  LEU*     3.0    37.2    +      -       +      +
     42N  LEU*     3.4    36.1    -      -       +      -
     60N  VAL*     4.4    11.2    -      -       +      -
     61N  VAL*     1.3    77.7    -      -       -      +
     63N  ARG*     1.3    78.3    +      -       -      +
     64N  GLY*     3.2     2.3    +      -       -      -
     66N  THR*     4.2     3.6    -      -       +      -
     67N  VAL*     3.9    18.6    -      -       +      -
----------------------------------------------------------
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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