Contacts of the strand formed by residues 2 - 10 (chain L) in PDB entry 3IT8


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 THR 2 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1L  ILE*     1.3    77.5    +      -       -      +
      3L  LEU*     1.3    70.2    +      -       -      +
      4L  LYS*     4.3     9.4    -      -       +      +
     24L  HIS      4.4     0.4    -      -       -      +
     25L  TYR*     3.2    12.0    -      -       -      -
     26L  ASN*     2.7    53.6    +      -       -      +
     97L  CYS      3.9     5.5    +      -       -      +
     98L  TYR*     3.9    11.6    -      -       -      +
    107L  TYR*     5.5     2.0    -      -       -      +
    167L  ILE*     3.9     4.0    -      -       -      -
    210L  PRO*     6.3     0.4    -      -       -      -
    211L  ASP*     3.9    20.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 3 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2L  THR*     1.3    75.7    -      -       -      +
      4L  LYS*     1.3    60.3    +      -       -      +
      5L  TYR*     4.0    15.0    -      -       +      +
     23L  ASP*     3.6    24.5    -      -       -      +
     24L  HIS      3.4     8.5    -      -       -      +
     25L  TYR*     4.4     3.1    -      -       +      -
     96L  GLY*     3.1     4.9    -      -       -      -
     97L  CYS      2.9    32.3    +      -       -      +
    107L  TYR*     3.4     2.1    +      -       -      -
    158L  PHE*     4.6     0.2    -      -       +      -
    163L  CYS*     3.9    22.2    -      -       -      -
    166L  ALA*     4.3     5.2    -      -       +      -
    167L  ILE*     3.8    42.1    -      -       +      +
    170L  TYR*     3.7    35.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 4 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2L  THR*     4.2     9.2    -      -       +      -
      3L  LEU*     1.3    74.3    -      -       -      +
      5L  TYR*     1.3    77.9    +      -       -      +
      6L  ASN*     4.2     6.3    -      -       +      -
     22L  TYR      3.6     3.1    -      -       -      +
     24L  HIS*     2.8    68.1    +      -       +      +
     94L  ILE*     4.7     4.3    -      -       +      -
     95L  THR      3.9     1.3    -      -       -      +
    107L  TYR*     3.6    15.0    -      -       +      +
    248L  PRO*     3.7    33.5    -      -       +      +
    325L  NAG      3.1    26.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 5 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3L  LEU*     4.0    13.5    -      -       +      +
      4L  LYS*     1.3    84.1    -      -       -      +
      6L  ASN*     1.3    60.5    +      -       -      +
      7L  TYR*     4.2     9.6    -      -       +      -
     21L  PHE*     3.9    17.9    -      +       +      -
     22L  TYR      3.5     2.7    -      -       -      -
     23L  ASP*     3.2    31.6    -      -       -      -
     59L  THR*     3.4    14.6    +      -       -      +
     60L  PRO*     3.7    18.1    -      -       +      +
     64L  TYR*     3.7     8.7    -      +       -      -
     93L  LEU      3.4     4.3    -      -       -      +
     94L  ILE*     3.6     2.6    -      -       -      -
     95L  THR*     2.7    49.2    +      -       +      +
    158L  PHE*     3.1    40.4    -      +       -      -
    166L  ALA*     5.2     0.3    -      -       -      +
    170L  TYR*     2.7    24.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 6 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4L  LYS*     5.1     8.7    -      -       -      +
      5L  TYR*     1.3    74.3    -      -       -      +
      7L  TYR*     1.3    65.1    +      -       -      +
      8L  THR*     2.9    12.6    +      -       -      -
     20L  VAL      3.7     1.2    -      -       -      +
     21L  PHE*     3.1     7.4    -      -       -      -
     22L  TYR*     2.9    53.1    +      -       +      +
     24L  HIS*     5.9     0.7    -      -       +      -
     92L  SER*     4.1     0.7    +      -       -      -
     93L  LEU      3.7     2.0    -      -       -      -
     94L  ILE*     3.3    17.7    -      -       +      +
    325L  NAG      1.5    64.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 7 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5L  TYR*     4.3    17.1    -      +       +      -
      6L  ASN*     1.3    73.3    +      -       -      +
      8L  THR*     1.3    63.4    +      -       -      +
     20L  VAL      3.5     4.7    -      -       -      +
     21L  PHE*     3.4    39.2    -      +       +      -
     60L  PRO*     5.3     3.3    -      -       -      +
     64L  TYR*     2.6    38.3    +      -       +      +
     66L  PHE*     4.5    13.2    -      +       +      -
     69L  TRP*     3.5    36.3    +      +       +      -
     70L  TYR      5.6     0.2    -      -       -      -
     73L  MET*     3.7    22.1    -      -       -      +
     92L  SER*     3.1     5.7    -      -       -      -
     93L  LEU*     2.8    59.9    +      -       +      -
     95L  THR*     4.7     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 8 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6L  ASN*     2.9    17.7    +      -       -      -
      7L  TYR*     1.3    73.0    +      -       -      +
      9L  VAL*     1.3    68.9    +      -       -      +
     10L  THR*     4.0    16.1    +      -       -      +
     18L  ASP      3.6     0.7    -      -       -      +
     19L  GLY*     3.2     2.3    -      -       -      -
     20L  VAL*     2.8    55.7    +      -       +      +
     90L  SER*     4.3     9.2    -      -       -      +
     91L  LEU      3.3     6.1    -      -       -      +
     92L  SER*     2.9    26.1    +      -       -      +
    325L  NAG      3.6    19.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 9 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8L  THR*     1.3    76.3    -      -       -      +
     10L  THR*     1.3    60.3    +      -       -      +
     17L  TYR*     5.1     4.5    -      -       +      -
     18L  ASP      2.9     8.1    -      -       -      +
     19L  GLY*     4.5     0.4    -      -       -      -
     70L  TYR*     3.8    36.1    -      -       +      +
     73L  MET*     3.8    42.1    -      -       +      +
     74L  LYS*     4.3     4.3    -      -       -      +
     77L  LEU*     3.6    21.0    -      -       +      +
     90L  SER*     3.1     3.5    -      -       -      -
     91L  LEU*     3.0    35.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 10 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8L  THR*     4.0    10.6    +      -       -      +
      9L  VAL*     1.3    77.1    +      -       -      +
     11L  LEU*     1.3    63.6    +      -       -      +
     12L  LYS*     3.1    19.0    +      -       +      +
     17L  TYR*     3.1    10.9    -      -       -      -
     18L  ASP*     2.8    40.2    +      -       -      +
     20L  VAL*     5.7     1.9    -      -       -      +
     77L  LEU*     4.6     0.2    -      -       -      -
     89L  THR*     3.5    24.5    -      -       +      +
     90L  SER*     3.5    14.5    -      -       -      -
----------------------------------------------------------
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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