Contacts of the strand formed by residues 554 - 561 (chain C) in PDB entry 3U1K


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 ILE 554 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233C  ALA*     3.5     7.8    -      -       -      +
    235C  ASN*     3.1    17.7    +      -       -      -
    236C  ILE      2.8    20.3    +      -       -      +
    238C  GLN*     4.0    18.2    -      -       +      +
    241C  PHE*     3.6    57.2    -      -       +      -
    547C  ILE*     3.9    28.5    -      -       +      -
    548C  ALA      3.7    10.3    -      -       -      +
    553C  GLY*     1.3    76.2    -      -       -      +
    555C  THR*     1.3    64.8    +      -       -      +
    556C  ALA      4.1     7.2    -      -       -      +
    575C  ILE*     4.1    12.6    -      -       +      -
    582C  LYS*     4.6     7.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 555 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232C  SER*     3.5     3.3    -      -       -      -
    233C  ALA*     2.8    32.5    +      -       -      +
    235C  ASN*     3.8    19.5    -      -       +      +
    456C  LYS      3.5     7.0    -      -       -      +
    457C  ALA*     2.9    28.9    +      -       -      +
    460C  PRO*     3.6    25.4    -      -       +      -
    461C  VAL*     5.3     2.0    -      -       +      -
    506C  VAL*     4.5     0.3    -      -       -      +
    548C  ALA      2.9     7.8    +      -       -      -
    549C  GLY*     3.2    23.8    +      -       -      -
    550C  THR*     4.6     7.4    -      -       +      -
    554C  ILE*     1.3    78.4    -      -       -      +
    556C  ALA*     1.3    62.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 556 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231C  ALA*     3.3    10.5    -      -       -      +
    241C  PHE*     6.1     0.2    -      -       -      -
    453C  LEU*     3.9    14.4    -      -       +      -
    456C  LYS*     3.9    15.7    -      -       +      -
    457C  ALA*     3.8    26.2    -      -       +      +
    485C  MET*     6.1     0.2    -      -       +      -
    546C  LYS      4.5     0.4    -      -       -      -
    547C  ILE*     3.3     8.8    -      -       -      +
    548C  ALA*     2.9    30.8    +      -       +      -
    554C  ILE*     3.9     4.3    -      -       -      +
    555C  THR*     1.3    80.4    +      -       -      +
    557C  LEU*     1.3    61.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 557 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  LEU*     5.0     1.1    -      -       +      -
    229C  LEU*     4.0    33.4    -      -       +      -
    230C  GLU*     3.4     5.5    -      -       -      +
    231C  ALA*     2.7    42.6    +      -       +      +
    241C  PHE*     3.5    40.4    -      -       +      -
    245C  ILE*     4.8     0.9    -      -       +      -
    453C  LEU*     4.6     2.9    -      -       -      -
    456C  LYS*     4.4     0.2    +      -       -      -
    545C  PHE*     3.6    36.3    -      -       +      -
    546C  LYS      3.4    11.4    -      -       -      +
    547C  ILE*     3.9    10.8    -      -       +      -
    556C  ALA*     1.3    74.7    -      -       -      +
    558C  GLN*     1.3    77.1    +      -       -      +
    559C  ALA      4.2     3.6    -      -       -      +
    575C  ILE*     5.0     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 558 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1C  CIT      4.1     4.9    -      -       -      +
    132C  ARG*     4.9     0.7    +      -       -      -
    136C  ARG*     3.5    23.0    +      -       -      +
    229C  LEU      3.6     3.6    -      -       -      -
    230C  GLU*     3.0    31.2    +      -       -      +
    449C  GLY*     4.7     6.9    +      -       -      -
    450C  HIS*     4.8     3.6    -      -       -      -
    453C  LEU*     3.9    33.0    -      -       +      +
    544C  ASP      3.3     5.9    -      -       -      +
    546C  LYS*     2.8    60.5    +      -       -      +
    557C  LEU*     1.3    73.7    -      -       -      +
    559C  ALA*     1.3    58.5    +      -       -      +
    560C  ASP*     3.7    19.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 559 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136C  ARG*     4.7     2.4    +      -       -      -
    228C  MET*     4.1    11.4    -      -       -      +
    229C  LEU*     2.8    43.6    +      -       +      +
    544C  ASP      3.9     2.5    -      -       -      -
    545C  PHE*     3.5    36.3    -      -       +      +
    557C  LEU*     4.2     1.8    -      -       +      +
    558C  GLN*     1.3    71.8    -      -       -      +
    560C  ASP*     1.3    61.4    +      -       -      +
    561C  ILE*     3.6    15.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 560 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1C  CIT      2.7    42.1    +      -       +      +
    136C  ARG*     2.6    39.3    +      -       +      +
    543C  MET*     3.1     4.6    -      -       -      +
    544C  ASP*     2.8    45.5    +      -       +      +
    546C  LYS*     3.0    22.5    -      -       -      -
    558C  GLN*     3.7     8.9    -      -       -      +
    559C  ALA*     1.3    71.1    -      -       -      +
    561C  ILE*     1.3    61.6    +      -       -      +
    562C  LYS*     3.9     8.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 561 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136C  ARG*     4.9     1.9    +      -       -      +
    140C  PRO*     3.1    26.3    -      -       -      +
    226C  ILE*     3.7    36.3    -      -       +      +
    227C  VAL      3.4    18.7    +      -       -      +
    228C  MET      4.5     0.9    -      -       -      +
    542C  ASP      3.8     6.3    -      -       -      +
    543C  MET*     4.1    13.7    -      -       +      -
    545C  PHE*     5.3     0.2    -      -       +      -
    559C  ALA*     3.6    24.0    +      -       +      +
    560C  ASP*     1.3    76.9    -      -       -      +
    562C  LYS*     1.3    62.3    +      -       -      +
    563C  LEU      3.5    18.8    -      -       -      +
    565C  GLY      4.5     0.4    -      -       -      +
    566C  ILE*     3.8    37.7    -      -       +      -
    571C  VAL*     5.0     2.9    -      -       +      -
----------------------------------------------------------
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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