Contacts of the strand formed by residues 40 - 49 (chain K) 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 K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5J  PRO*     4.0     0.3    -      -       -      +
      9K  LEU*     5.1     5.4    -      -       +      -
     19K  VAL*     3.7    41.7    -      -       +      -
     31K  LEU*     4.9     7.2    -      -       +      -
     33K  GLY      3.5     4.7    -      -       -      +
     34K  TYR*     4.1    14.1    -      -       +      -
     38K  MET*     3.2    31.2    -      -       +      +
     39K  ASN*     1.3    76.9    -      -       -      +
     41K  VAL*     1.3    71.5    +      -       -      +
     42K  LEU*     4.5    10.8    -      -       +      -
     60K  VAL      4.5     0.2    -      -       -      -
     61K  VAL*     3.4     6.6    -      -       -      +
     62K  ILE*     3.1    37.3    +      -       +      -
     67K  VAL*     4.2    11.9    -      -       +      -
     70K  VAL*     3.9    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 41 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3J  PRO      4.7     1.1    -      -       -      +
      4J  ARG      4.2     2.9    -      -       -      -
      5J  PRO*     3.5    38.8    -      -       +      -
      8J  VAL*     4.0    23.3    -      -       +      -
     32K  ASP*     2.8    39.1    +      -       +      +
     33K  GLY*     3.0    20.2    +      -       -      +
     40K  LEU*     1.3    82.1    -      -       -      +
     42K  LEU*     1.3    71.3    +      -       -      +
     43K  LEU*     5.5     4.7    -      -       +      -
     59K  SER*     5.5     1.8    -      -       -      -
     60K  VAL      3.3    12.3    -      -       -      +
     61K  VAL*     4.6     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 42 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17K  VAL*     4.1    13.7    -      -       +      -
     19K  VAL*     3.9    18.8    -      -       +      -
     27K  PHE*     3.8    31.2    -      -       +      -
     28K  ARG      4.7     0.2    -      -       -      +
     29K  GLY      4.3    11.2    -      -       -      +
     30K  THR      3.2     4.7    -      -       -      +
     31K  LEU*     3.9    23.8    -      -       +      +
     40K  LEU*     4.5     4.0    -      -       +      -
     41K  VAL*     1.3    85.4    -      -       -      +
     43K  LEU*     1.3    65.0    +      -       -      +
     45K  ALA*     4.1    20.4    -      -       +      -
     59K  SER*     3.1    26.7    -      -       -      -
     60K  VAL*     3.2    18.0    +      -       +      -
     62K  ILE*     4.3    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 43 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29K  GLY*     3.7     0.9    -      -       -      -
     30K  THR*     3.0    41.5    +      -       +      +
     32K  ASP*     3.3    40.2    -      -       +      +
     41K  VAL*     5.5     3.8    -      -       +      -
     42K  LEU*     1.3    76.3    -      -       -      +
     44K  ASP*     1.3    80.4    +      -       -      +
     45K  ALA      3.2     3.2    +      -       -      -
     58K  GLY      3.5     4.7    -      -       -      +
     59K  SER*     3.6    24.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 44 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28K  ARG      4.0     3.5    -      -       -      +
     29K  GLY*     4.1     3.3    -      -       -      -
     30K  THR*     5.4     2.4    +      -       -      +
     43K  LEU*     1.3    80.4    -      -       -      +
     45K  ALA*     1.3    58.1    +      -       -      +
     46K  GLU*     5.2     2.6    -      -       -      +
     57K  VAL      3.5     9.0    -      -       -      -
     58K  GLY*     2.8    26.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 45 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27K  PHE*     4.2    11.2    -      -       +      -
     28K  ARG      2.9    22.9    -      -       -      +
     29K  GLY*     3.7     7.2    -      -       -      -
     42K  LEU*     4.1    24.0    -      -       +      +
     43K  LEU      3.3     0.4    -      -       -      -
     44K  ASP*     1.3    76.2    -      -       -      +
     46K  GLU*     1.3    61.6    +      -       -      +
     56K  LYS*     3.5     2.8    -      -       -      +
     57K  VAL*     3.0    41.2    +      -       +      +
     59K  SER      5.2     0.2    -      -       -      +
     60K  VAL*     4.9     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 46 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27K  PHE*     3.3    10.6    -      -       -      -
     28K  ARG*     3.0    50.3    +      -       +      +
     44K  ASP      5.2     2.0    -      -       -      +
     45K  ALA*     1.3    79.0    -      -       -      +
     47K  GLU*     1.3    60.7    +      -       -      +
     48K  ILE*     3.9     7.9    +      -       +      +
     53K  VAL*     4.0    30.8    -      -       +      +
     55K  ARG      3.4     5.6    -      -       -      +
     56K  LYS*     2.6    37.4    +      -       +      +
     57K  VAL*     5.9     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 47 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20J  ARG*     4.0    15.9    +      -       -      -
     69J  PHE*     4.2     6.1    -      -       -      -
     21K  LEU*     5.7     0.7    -      -       -      +
     25K  ARG*     3.4    34.0    +      -       +      +
     26K  GLU      3.7     4.7    -      -       -      +
     27K  PHE*     4.2    31.1    -      -       +      -
     46K  GLU*     1.3    71.0    -      -       -      +
     48K  ILE*     1.3    58.4    +      -       -      +
     53K  VAL*     3.6     2.3    -      -       -      -
     54K  VAL*     2.8    56.1    +      -       +      +
     55K  ARG*     2.8    45.0    +      -       +      +
     57K  VAL*     6.1     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 48 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24K  GLY      4.6     0.2    -      -       -      +
     25K  ARG*     3.7     6.1    -      -       -      -
     26K  GLU*     2.7    55.3    +      -       +      +
     27K  PHE      5.6     0.4    -      -       -      -
     28K  ARG*     3.5    46.4    -      -       +      +
     46K  GLU*     4.5    12.1    -      -       +      +
     47K  GLU*     1.3    74.8    -      -       -      +
     49K  GLN*     1.3    63.7    +      -       -      +
     50K  ASN      4.3     0.7    +      -       -      +
     51K  GLY*     3.8    26.9    -      -       -      +
     52K  GLU      3.4    10.8    -      -       -      +
     53K  VAL*     4.6    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 49 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6D  LEU      5.6     0.2    -      -       -      -
      7D  ASP*     4.6    19.1    +      -       -      +
     10D  ASN*     3.1    44.4    +      -       -      +
     34D  TYR*     4.2     3.4    +      -       -      -
     24K  GLY      5.2     1.8    -      -       -      +
     25K  ARG*     3.0    48.3    +      -       -      +
     47K  GLU      4.1     0.4    +      -       -      -
     48K  ILE*     1.3    73.4    -      -       -      +
     50K  ASN*     1.3    60.1    +      -       +      +
     51K  GLY      2.6    15.0    +      -       -      -
     52K  GLU      2.9    17.5    +      -       -      +
     54K  VAL*     3.5    22.4    -      -       +      +
----------------------------------------------------------
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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