Contacts of the strand formed by residues 646 - 651 (chain D) 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 THR 646 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    609D  THR*     3.9    22.7    -      -       +      -
    610D  VAL      3.6     2.2    -      -       -      +
    611D  GLN*     3.2    32.1    +      -       -      +
    641D  GLN*     3.7     3.5    -      -       -      +
    642D  VAL*     3.0    42.7    +      -       +      -
    643D  ASP*     2.5    33.0    +      -       -      +
    645D  GLU*     1.3    78.8    -      -       -      +
    647D  PHE*     1.3    64.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 647 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    609D  THR*     3.3     3.4    -      -       -      -
    610D  VAL*     2.8    47.8    +      -       +      +
    612D  VAL*     3.2    34.8    -      -       +      -
    617D  ARG*     4.4    10.5    -      -       +      -
    620D  PHE*     3.7    24.9    -      +       +      -
    621D  VAL*     3.9    21.5    -      -       +      -
    628D  LEU*     4.2     8.3    -      -       +      -
    639D  ILE*     3.7    26.2    -      -       +      -
    640D  SER      3.6     2.0    -      -       -      -
    641D  GLN*     3.5    48.2    -      -       +      -
    642D  VAL*     4.4     2.0    -      -       -      -
    644D  GLU      5.1     0.7    -      -       -      -
    645D  GLU      4.2     3.6    -      -       -      -
    646D  THR*     1.3    80.1    -      -       -      +
    648D  SER*     1.3    59.7    +      -       -      +
    649D  VAL*     3.9     2.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with SER 648 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623C  PRO*     5.1     3.1    -      -       -      -
    403D  GLU*     5.2     3.4    +      -       -      +
    607D  VAL*     3.6    21.0    -      -       -      +
    608D  GLU      4.2     3.6    +      -       -      -
    609D  THR*     4.5     8.1    -      -       -      +
    638D  THR      3.9     1.2    -      -       -      +
    639D  ILE*     3.3     6.2    -      -       -      +
    640D  SER*     2.7    46.8    +      -       -      -
    642D  VAL*     3.6    18.2    -      -       -      +
    647D  PHE*     1.3    72.2    -      -       -      +
    649D  VAL*     1.3    61.2    +      -       -      +
    650D  PHE*     5.9     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 649 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    606D  VAL      3.6     1.9    -      -       -      +
    607D  VAL*     3.2     7.4    -      -       -      -
    608D  GLU      3.1    35.5    +      -       -      +
    610D  VAL*     4.0    26.0    -      -       +      -
    620D  PHE*     6.3     0.2    -      -       +      -
    637D  VAL*     3.8    26.2    -      -       +      -
    638D  THR      4.0     1.8    -      -       -      -
    639D  ILE*     3.9    21.3    -      -       +      -
    647D  PHE*     4.4     3.8    -      -       +      +
    648D  SER*     1.3    77.6    +      -       -      +
    650D  PHE*     1.3    64.1    +      -       -      +
    657D  MET*     3.7    28.3    -      -       +      +
    660D  ALA*     4.7     5.6    -      -       +      -
    664D  ILE*     4.6     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 650 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112B  ILE*     6.2     1.3    -      -       +      -
    399D  PHE      4.5     2.2    -      -       -      -
    400D  ASP*     3.6    13.2    -      -       -      -
    401D  SER*     3.3    39.9    -      -       -      -
    402D  LEU      5.3     0.4    -      -       -      -
    403D  GLU*     5.0     4.7    -      -       -      +
    468D  PHE*     3.4    28.0    -      +       -      -
    605D  PRO*     3.8    19.3    -      -       +      -
    606D  VAL      3.5     2.9    -      -       -      -
    607D  VAL*     3.4    26.0    -      -       +      -
    636D  GLY      4.8     0.2    -      -       -      -
    637D  VAL*     3.3     6.1    -      -       -      +
    638D  THR*     3.0    51.8    +      -       +      +
    648D  SER*     4.2     0.6    -      -       -      +
    649D  VAL*     1.3    73.6    -      -       -      +
    651D  ALA*     1.3    61.0    +      -       -      +
    652D  PRO*     3.9    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 651 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605D  PRO*     2.9     4.3    -      -       -      +
    606D  VAL*     2.8    40.9    +      -       +      +
    637D  VAL*     3.4    20.4    -      -       +      -
    649D  VAL      4.1     0.2    +      -       -      -
    650D  PHE*     1.3    79.6    -      -       -      +
    652D  PRO*     1.3    64.7    -      -       +      +
    653D  THR      3.1     7.2    +      -       -      +
    657D  MET*     3.5    35.7    -      -       +      +
----------------------------------------------------------
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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