Contacts of the strand formed by residues 119 - 124 (chain N) in PDB entry 3DXA


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 119 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6N  GLN*     3.3    24.7    +      -       -      +
      8N  PRO*     3.0    30.3    +      -       +      +
     11N  MET*     4.0    24.2    -      -       +      -
     21N  LEU*     4.5    20.6    -      -       +      -
     22N  PRO*     4.6     2.9    +      -       +      -
     41N  TRP*     5.7     0.7    -      -       -      -
    101N  VAL*     3.5     1.2    -      -       -      -
    102N  TYR*     2.7    48.7    +      -       -      +
    118N  GLY*     1.3    71.6    -      -       -      +
    120N  LYS*     1.3    65.6    +      -       -      +
    121N  LEU      3.7     2.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 120 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9N  THR      3.2    25.7    +      -       -      +
     10N  SER*     3.6    11.9    -      -       -      +
     11N  MET      2.9    24.4    +      -       -      +
    100N  ALA      3.7     5.2    -      -       -      +
    101N  VAL*     3.8    30.0    -      -       +      +
    117N  THR*     3.9    26.5    -      -       -      -
    118N  GLY      4.3     4.3    -      -       -      +
    119N  THR*     1.3    75.0    -      -       -      +
    121N  LEU*     1.3    60.7    +      -       -      +
    122N  GLN*     3.7    16.7    +      -       -      +
     47O  GLY*     4.3    16.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 121 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11N  MET*     3.5    21.1    -      -       +      +
     12N  ASP      3.8     3.8    -      -       -      -
     13N  CYS*     3.6    16.8    -      -       +      -
     19N  ALA*     4.3    11.4    -      -       +      -
     21N  LEU*     3.4    35.4    -      -       +      -
     91N  LEU*     4.2    15.9    -      -       +      -
     98N  ASP*     5.2     2.0    -      -       +      +
     99N  THR*     3.4     8.5    -      -       -      -
    100N  ALA      3.0    26.2    +      -       -      +
    102N  TYR*     4.0    19.1    -      -       +      +
    119N  THR*     3.7     2.5    +      -       +      -
    120N  LYS*     1.3    71.8    -      -       -      +
    122N  GLN*     1.3    83.4    +      -       -      +
    123N  VAL*     4.1    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 122 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10N  SER*     6.1     1.5    -      -       -      -
     11N  MET      3.2     7.4    +      -       -      +
     12N  ASP*     3.2    21.7    -      -       -      +
     13N  CYS      2.8    32.1    +      -       -      +
     99N  THR*     4.3     8.2    -      -       -      +
    100N  ALA      6.3     0.2    -      -       -      -
    120N  LYS*     4.2    19.6    -      -       -      +
    121N  LEU*     1.3    84.2    +      -       -      +
    123N  VAL*     1.3    59.5    +      -       -      +
    124N  ILE*     3.6    16.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 123 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13N  CYS*     3.3     5.4    -      -       +      +
     14N  ALA      3.8     4.3    -      -       -      -
     15N  GLU*     3.4    37.0    -      -       +      +
     94N  ALA*     3.9    19.3    -      -       +      -
     95N  THR      3.6    21.5    -      -       -      +
     96N  LEU*     3.1    23.8    -      -       -      +
     98N  ASP*     4.7     2.9    -      -       +      -
     99N  THR*     3.2    27.7    -      -       +      +
    121N  LEU*     4.1    19.7    -      -       +      -
    122N  GLN*     1.3    76.1    -      -       -      +
    124N  ILE*     1.3    62.5    +      -       -      +
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Residues in contact with ILE 124 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12N  ASP*     4.9    11.4    -      -       +      +
     13N  CYS      3.1    12.7    +      -       -      +
     14N  ALA*     3.6     9.1    -      -       -      +
     15N  GLU*     3.2    19.7    +      -       -      +
    122N  GLN*     3.6    28.7    -      -       +      +
    123N  VAL*     1.3    82.8    -      -       -      +
    125N  PRO*     1.4    77.5    -      -       +      +
    126N  ILE      4.2     0.2    +      -       -      -
    154N  SER*     3.3    28.7    -      -       -      +
    171N  LYS*     6.4     2.5    -      -       -      -
    184N  ASN*     4.7     6.3    -      -       -      +
----------------------------------------------------------
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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