Contacts of the strand formed by residues 40 - 49 (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 LEU 40 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9N  LEU*     5.0     6.3    -      -       +      -
     19N  VAL*     3.8    37.5    -      -       +      -
     31N  LEU*     4.5    14.6    -      -       +      -
     33N  GLY      3.8     5.6    -      -       -      +
     34N  TYR*     3.9    16.2    -      -       +      -
     38N  MET*     3.4    28.9    -      -       +      +
     39N  ASN*     1.3    79.0    -      -       -      +
     41N  VAL*     1.3    69.4    +      -       -      +
     42N  LEU*     4.3     2.2    -      -       +      -
     61N  VAL*     3.3     8.0    -      -       -      +
     62N  ILE*     3.0    40.7    +      -       +      -
     67N  VAL*     4.3     9.0    -      -       +      -
     70N  VAL*     3.8    21.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 41 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3M  PRO      4.7     2.5    -      -       -      +
      4M  ARG      4.3     1.3    -      -       -      -
      5M  PRO*     3.4    36.6    -      -       +      -
      8M  VAL*     3.9    30.1    -      -       +      -
     30N  THR      3.5     0.2    -      -       -      +
     31N  LEU*     3.7     4.0    -      -       -      +
     32N  ASP*     2.7    49.3    +      -       +      +
     33N  GLY*     3.5    16.0    +      -       -      +
     40N  LEU*     1.3    81.4    -      -       -      +
     42N  LEU*     1.3    59.3    +      -       -      +
     43N  LEU*     4.6     9.4    -      -       +      -
     59N  SER*     5.3     0.4    -      -       -      -
     60N  VAL      3.2    11.7    -      -       -      +
     61N  VAL*     4.2     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 42 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17N  VAL*     3.9    20.9    -      -       +      -
     19N  VAL*     4.0    12.6    -      -       +      -
     27N  PHE*     3.7    25.8    -      -       +      -
     29N  GLY      4.3     6.3    -      -       -      +
     30N  THR      3.2     9.0    -      -       -      +
     31N  LEU*     3.8    24.9    -      -       +      +
     40N  LEU*     4.9     2.5    -      -       +      -
     41N  VAL*     1.3    81.8    -      -       -      +
     43N  LEU*     1.3    64.5    +      -       -      +
     45N  ALA*     4.3    11.1    -      -       +      +
     59N  SER*     2.9    26.3    -      -       -      -
     60N  VAL*     3.0    21.9    +      -       +      +
     62N  ILE*     3.4    31.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 43 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29N  GLY*     3.7     0.2    -      -       -      -
     30N  THR*     3.0    41.7    +      -       +      +
     32N  ASP*     3.5    40.2    -      -       +      +
     41N  VAL*     4.6     5.6    -      -       +      -
     42N  LEU*     1.3    77.1    -      -       -      +
     44N  ASP*     1.3    81.8    +      -       -      +
     45N  ALA      3.4     1.0    +      -       -      -
     58N  GLY      3.4     4.3    -      -       -      +
     59N  SER*     3.6    21.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 44 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28N  ARG      3.9     0.7    -      -       -      +
     29N  GLY*     3.8     8.5    -      -       -      -
     30N  THR*     4.5     3.2    +      -       -      +
     43N  LEU*     1.3    84.9    -      -       -      +
     45N  ALA*     1.3    59.0    +      -       -      +
     46N  GLU*     5.4     1.6    -      -       -      +
     57N  VAL      3.6     7.6    -      -       -      -
     58N  GLY*     2.8    20.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 45 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27N  PHE*     4.2    18.6    -      -       +      -
     28N  ARG      2.8    21.1    -      -       -      +
     29N  GLY*     3.9     4.7    -      -       -      -
     42N  LEU*     4.3    17.3    -      -       +      -
     43N  LEU      4.6     0.7    -      -       -      -
     44N  ASP*     1.3    75.7    -      -       -      +
     46N  GLU*     1.3    68.1    +      -       -      +
     56N  LYS*     3.5     4.3    -      -       -      +
     57N  VAL*     3.1    37.8    +      -       +      -
     60N  VAL*     4.8     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 46 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26N  GLU      3.8     0.7    -      -       -      +
     27N  PHE*     3.1    28.5    -      -       -      -
     28N  ARG*     3.0    24.1    +      -       +      +
     44N  ASP      5.4     1.6    -      -       -      +
     45N  ALA*     1.3    80.6    -      -       -      +
     47N  GLU*     1.3    60.1    +      -       -      +
     48N  ILE*     4.4    10.0    -      -       +      +
     53N  VAL*     4.2    25.6    -      -       +      +
     55N  ARG      3.2    10.3    -      -       -      +
     56N  LYS*     2.5    41.4    +      -       +      +
     57N  VAL*     5.6     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 47 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20M  ARG*     4.4     7.6    +      -       -      -
     69M  PHE*     4.0    15.1    -      -       -      -
     25N  ARG*     2.9    35.9    +      -       +      +
     26N  GLU      3.9     2.2    -      -       -      +
     27N  PHE*     4.2    29.8    -      -       +      -
     46N  GLU*     1.3    73.0    -      -       -      +
     48N  ILE*     1.3    62.7    +      -       -      +
     53N  VAL*     3.2     6.8    -      -       -      -
     54N  VAL*     2.8    47.2    +      -       +      +
     55N  ARG*     2.8    46.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 48 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25N  ARG*     3.2     7.9    -      -       -      +
     26N  GLU*     2.9    51.7    +      -       +      +
     28N  ARG*     3.9    39.0    -      -       +      +
     46N  GLU*     4.4    10.3    -      -       -      +
     47N  GLU*     1.3    82.0    -      -       -      +
     49N  GLN*     1.3    64.2    +      -       -      +
     50N  ASN      5.0     0.2    -      -       -      +
     51N  GLY*     3.9    32.5    -      -       -      +
     52N  GLU      3.6     3.4    -      -       -      +
     53N  VAL*     4.2    19.5    -      -       +      -
     54N  VAL*     4.5     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 49 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24N  GLY      5.1     2.7    -      -       -      +
     25N  ARG*     2.6    48.4    +      -       +      +
     48N  ILE*     1.3    75.5    -      -       -      +
     50N  ASN*     1.3    64.5    +      -       +      +
     51N  GLY      2.6    17.9    +      -       -      -
     52N  GLU*     2.8    24.2    +      -       -      +
     54N  VAL*     3.9    24.0    -      -       +      +
----------------------------------------------------------
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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