Contacts of the strand formed by residues 38 - 46 (chain U) in PDB entry 2FD6


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 38 (chain U).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  GLY*     3.9    13.5    -      -       -      +
     40A  GLN*     3.6    27.1    -      -       +      +
     29U  VAL      3.7     0.5    -      -       -      +
     30U  ARG*     3.1     4.2    -      -       -      +
     31U  LEU*     2.7    60.3    +      -       +      +
     37U  GLU*     1.3    77.7    -      -       -      +
     39U  GLU*     1.3    72.2    +      -       -      +
     40U  LEU*     3.4    25.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 39 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  LYS*     4.7    12.3    +      -       -      -
     28U  ILE*     3.6    22.5    -      -       +      +
     29U  VAL      3.3     4.0    -      -       -      +
     30U  ARG*     3.6    36.5    +      -       +      -
     37U  GLU*     4.8     7.9    -      -       -      +
     38U  LEU*     1.3    81.0    -      -       -      +
     40U  LEU*     1.3    67.9    +      -       -      +
     41U  VAL*     3.7    17.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 40 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ILE*     4.2    10.8    -      -       +      -
     29A  HIS      4.1     3.8    -      -       -      +
     30A  TRP*     3.8    19.7    -      -       +      -
     40A  GLN*     3.6    41.5    -      -       +      +
     98A  LYS*     6.0     0.7    -      -       -      +
      8U  THR*     4.2     8.7    -      -       +      -
     27U  THR      3.8     0.4    -      -       -      +
     28U  ILE*     3.3     5.9    -      -       -      +
     29U  VAL*     2.7    56.3    +      -       +      +
     31U  LEU*     4.4     3.8    -      -       +      -
     38U  LEU*     3.4    36.3    -      -       +      +
     39U  GLU*     1.3    80.0    -      -       -      +
     41U  VAL*     1.3    62.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 41 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  LYS*     5.9     1.2    -      -       -      +
      6U  CYS*     5.2     2.7    -      -       +      +
      7U  LYS      3.4    18.0    -      -       -      +
      8U  THR*     3.5    14.1    +      -       -      +
     26U  THR*     4.1    13.9    -      -       +      -
     27U  THR      3.4     3.8    -      -       -      +
     28U  ILE*     4.3     8.5    -      -       +      -
     39U  GLU*     3.7    28.2    +      -       +      +
     40U  LEU*     1.3    80.5    -      -       -      +
     42U  GLU*     1.3    65.1    +      -       -      +
     43U  LYS*     3.7    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 42 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  SER      4.5     4.9    -      -       -      +
     28A  ILE*     3.9    38.1    -      -       +      +
     29A  HIS*     5.5     3.1    +      -       -      -
      6U  CYS*     3.6    14.8    -      -       -      +
      7U  LYS*     5.0     2.5    -      -       -      -
      8U  THR*     4.2    12.8    +      -       +      +
     25U  ARG*     3.0    36.6    +      -       -      +
     26U  THR*     4.1     0.2    -      -       -      +
     27U  THR      2.7    40.1    +      -       -      +
     41U  VAL*     1.3    76.8    -      -       -      +
     43U  LYS*     1.3    71.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 43 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4U  MET*     3.3    11.4    -      -       +      +
      5U  GLN*     3.3     3.8    -      -       -      +
      6U  CYS*     3.1    49.5    +      -       +      +
     25U  ARG*     3.1    10.8    +      -       -      +
     26U  THR*     3.7    14.8    -      -       +      +
     41U  VAL*     3.7    21.8    -      -       +      -
     42U  GLU*     1.3    84.4    -      -       -      +
     44U  SER*     1.3    66.8    +      -       -      +
     77U  ASN*     3.0    47.9    +      -       -      +
     78U  GLN*     3.2    20.0    +      -       -      +
     79U  GLY      3.5     7.9    +      -       -      -
     80U  ASN*     4.7     6.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 44 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3U  CYS*     3.9     2.0    -      -       -      -
      4U  MET      3.1    12.9    +      -       -      -
      5U  GLN*     4.1    11.7    -      -       -      +
     15U  GLU*     3.5    12.1    -      -       -      -
     25U  ARG*     2.8    60.6    +      -       -      +
     43U  LYS*     1.3    76.9    -      -       -      +
     45U  CYS*     1.3    70.2    +      -       -      +
     77U  ASN*     3.1     7.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 45 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3U  CYS*     3.6    12.1    -      -       -      -
     15U  GLU*     2.8    40.4    +      -       -      +
     17U  CYS*     2.0    59.7    -      -       +      -
     21U  GLN*     4.0    19.1    +      -       +      +
     23U  LEU      3.4     4.9    -      -       -      -
     44U  SER*     1.3    87.7    +      -       -      +
     46U  THR*     1.3    62.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 46 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  SER*     5.1     1.9    +      -       -      -
     21U  GLN*     3.1    28.8    -      -       -      +
     23U  LEU*     2.5    48.5    +      -       +      +
     24U  CYS      4.0     1.1    -      -       -      +
     25U  ARG*     3.6    31.5    -      -       +      +
     45U  CYS*     1.3    78.2    -      -       -      +
     47U  HIS*     1.3    74.8    +      -       -      +
     50U  LYS*     3.2    31.3    -      -       +      +
     68U  GLU*     5.1     0.3    +      -       -      -
     70U  VAL*     4.4     1.6    -      -       +      -
----------------------------------------------------------
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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