Contacts of the strand formed by residues 134 - 140 (chain A) in PDB entry 4YET


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 ALA 134 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  ILE*     5.0     3.6    -      -       +      -
     96A  LYS*     4.1    36.5    +      -       +      +
     97A  ILE*     4.2     7.4    -      -       +      -
    100A  LYS*     3.3    31.6    -      -       +      +
    101A  PHE*     4.7     1.6    -      -       +      -
    126A  LEU*     4.2    16.4    -      -       +      -
    127A  VAL      3.3    10.5    -      -       -      +
    128A  LEU*     4.7     1.8    -      -       -      +
    132A  GLY      4.3     0.4    +      -       -      -
    133A  THR*     1.3    78.1    +      -       -      +
    135A  ASP*     1.3    64.6    +      -       -      +
    154A  LEU*     5.2     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  LYS*     3.9    18.5    +      -       -      -
    101A  PHE*     4.4     7.2    -      -       -      -
    126A  LEU*     3.5     7.4    -      -       -      +
    127A  VAL*     2.8    36.9    +      -       +      +
    129A  LYS*     3.3    41.3    +      -       +      +
    134A  ALA*     1.3    77.1    -      -       -      +
    136A  ILE*     1.3    90.6    +      -       -      +
    137A  VAL*     5.2     4.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 136 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  PHE*     4.0    12.6    -      -       +      -
    107A  PHE*     3.6    25.6    -      -       +      -
    110A  ASP*     3.7    40.4    -      -       +      +
    111A  PHE*     3.4    27.6    -      -       +      +
    114A  LEU*     4.0    17.4    -      -       +      +
    125A  TRP      3.2     8.7    -      -       -      +
    126A  LEU*     4.2     3.6    -      -       +      -
    135A  ASP*     1.3    98.8    +      -       -      +
    137A  VAL*     1.3    68.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  LEU*     3.8     9.5    -      -       -      +
    124A  GLY*     3.6     2.9    -      -       -      -
    125A  TRP*     2.9    52.2    +      -       +      -
    127A  VAL*     3.8    22.2    -      -       +      -
    129A  LYS*     6.2     1.8    -      -       +      -
    135A  ASP*     5.2     5.6    -      -       -      +
    136A  ILE*     1.3    81.6    -      -       -      +
    138A  GLN*     1.3    62.6    +      -       -      +
    145A  PRO*     5.2     0.7    -      -       +      -
    150A  LEU*     4.0    44.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  LEU*     4.0    28.0    -      -       +      +
    117A  GLY      5.2     0.7    -      -       -      -
    118A  HIS*     2.8    44.3    +      -       +      +
    123A  TRP      3.3    13.0    -      -       -      +
    125A  TRP*     4.3     0.7    -      -       -      -
    137A  VAL*     1.3    77.0    -      -       -      +
    139A  THR*     1.3    69.3    +      -       -      +
    148A  GLU*     4.7     1.9    -      -       -      +
    150A  LEU*     4.0     9.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  HIS*     3.3     9.5    -      -       -      -
    122A  GLY*     3.3     2.3    -      -       -      -
    123A  TRP*     2.9    36.3    +      -       -      +
    125A  TRP*     2.9    27.2    +      -       +      +
    138A  GLN*     1.3    79.5    -      -       -      +
    140A  HIS*     1.3    61.7    +      -       -      +
    143A  GLY*     2.8    37.7    +      -       -      +
    145A  PRO      4.0     8.7    -      -       -      -
    148A  GLU*     4.0    10.3    -      -       -      +
    150A  LEU*     3.8    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 140 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  HIS*     2.8    24.6    +      +       +      +
    119A  PHE      3.1    25.1    -      -       -      -
    121A  SER      3.0    16.0    +      -       -      -
    139A  THR*     1.3    75.0    -      -       -      +
    141A  ASP*     1.3    83.6    +      -       -      +
    142A  ALA      3.1     0.7    +      -       -      -
    143A  GLY*     2.8    27.2    +      -       -      -
    148A  GLU*     5.1     1.8    +      -       -      -
    140B  HIS*     3.9     3.1    +      +       -      -
    141B  ASP*     2.6    35.3    +      -       -      -
----------------------------------------------------------
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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