Contacts of the strand formed by residues 710 - 718 (chain D) in PDB entry 1XSK


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 VAL 710 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    575D  ARG*     3.7    27.6    -      -       -      +
    702D  GLU*     3.4    35.7    -      -       +      +
    703D  VAL      3.7     4.7    -      -       -      +
    704D  PRO*     4.3     1.3    -      -       -      -
    708D  GLY      5.2     0.7    -      -       -      +
    709D  SER*     1.3    76.4    +      -       -      +
    711D  ILE*     1.3    61.7    +      -       -      +
    712D  PHE      3.7    11.4    -      -       -      +
    713D  THR*     3.5    24.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 711 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    683D  HIS*     3.7    53.2    -      -       +      +
    703D  VAL      2.9    16.5    +      -       -      +
    704D  PRO      3.9    13.7    -      -       -      +
    705D  ALA*     4.0    20.4    -      -       +      +
    709D  SER*     3.5     1.2    +      -       -      -
    710D  VAL*     1.3    74.3    -      -       -      +
    712D  PHE*     1.3    60.5    +      -       +      +
    729D  GLY*     3.4     5.4    -      -       -      -
    730D  GLU*     2.9    44.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 712 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    683D  HIS*     4.9     1.3    -      -       +      -
    688D  PHE*     3.6    33.0    -      +       -      -
    701D  CYS      3.6     1.2    -      -       -      +
    702D  GLU*     3.6     1.6    -      -       -      -
    703D  VAL*     2.8    40.5    +      -       +      +
    710D  VAL*     3.6     2.2    -      -       -      +
    711D  ILE*     1.3    89.1    -      -       +      +
    713D  THR*     1.3    65.2    +      -       -      +
    714D  LEU*     3.8    31.6    -      -       +      -
    727D  GLY*     4.2     5.2    -      -       -      -
    728D  ALA      3.3    27.4    -      -       -      -
    729D  GLY      3.7    14.8    -      -       -      -
    730D  GLU      3.4    10.3    -      -       -      +
    731D  ALA*     3.4    30.7    -      -       +      -
    734D  TRP*     3.9    13.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with THR 713 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700D  VAL*     3.7    27.4    -      -       +      -
    701D  CYS      3.4     4.5    -      -       -      +
    702D  GLU*     4.1     8.7    +      -       +      +
    710D  VAL*     3.5    20.1    -      -       -      +
    712D  PHE*     1.3    76.3    -      -       -      +
    714D  LEU*     1.3    63.3    +      -       -      +
    715D  LYS*     4.2    21.5    -      -       +      +
    726D  THR      4.1     0.2    -      -       -      +
    727D  GLY*     3.2     3.3    -      -       -      -
    728D  ALA*     2.7    46.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 714 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    668D  LEU*     3.2    32.0    -      -       +      +
    688D  PHE*     4.3    15.3    -      -       +      -
    700D  VAL*     3.5     0.7    -      -       -      -
    701D  CYS      2.9    35.6    +      -       -      +
    712D  PHE*     3.8    26.2    -      -       +      -
    713D  THR*     1.3    75.5    -      -       -      +
    715D  LYS*     1.3    67.2    +      -       -      +
    716D  ALA*     4.7     1.3    -      -       +      +
    725D  VAL*     3.9    21.8    -      -       +      -
    726D  THR      3.6    10.8    -      -       -      +
    727D  GLY*     3.9     4.3    -      -       -      -
    734D  TRP*     3.6    33.9    -      -       +      -
    736D  LEU*     4.9     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 715 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    698D  GLU*     3.0    27.5    +      -       +      +
    699D  ALA      3.3     4.9    -      -       -      +
    700D  VAL*     3.6    17.5    -      -       +      +
    713D  THR*     4.2    20.4    -      -       +      -
    714D  LEU*     1.3    82.5    -      -       -      +
    716D  ALA*     1.3    61.8    +      -       -      +
    717D  ALA*     4.1     0.7    -      -       +      +
    724D  THR      3.5     1.4    -      -       -      +
    725D  VAL*     3.3     4.0    -      -       -      -
    726D  THR*     2.8    48.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 716 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    668D  LEU*     4.4     7.4    -      -       +      -
    690D  LEU*     4.0    31.2    -      -       +      -
    693D  LEU*     3.2    15.5    -      -       +      +
    698D  GLU*     3.5     0.8    -      -       -      -
    699D  ALA      3.0    30.7    +      -       -      +
    714D  LEU*     5.0     1.3    -      -       +      -
    715D  LYS*     1.3    75.9    -      -       -      +
    717D  ALA*     1.3    61.2    +      -       -      +
    723D  ILE*     5.5     1.6    -      -       +      -
    724D  THR      3.2     7.0    -      -       -      +
    725D  VAL*     4.3    13.0    -      -       +      -
    736D  LEU*     6.0     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 717 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    693D  LEU*     4.0     0.9    -      -       -      -
    697D  HIS      3.6     7.0    -      -       -      +
    698D  GLU*     3.7    19.7    -      -       +      +
    715D  LYS*     4.1     0.4    -      -       +      -
    716D  ALA*     1.3    73.5    -      -       -      +
    718D  ARG*     1.3    60.8    +      -       -      +
    719D  THR*     4.0     0.7    +      -       -      -
    722D  THR      3.6     1.4    -      -       -      +
    723D  ILE*     3.0     3.4    -      -       -      -
    724D  THR*     2.6    49.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 718 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    693D  LEU*     3.3    28.1    +      -       +      +
    694D  GLN*     3.4    17.0    -      -       -      +
    695D  ASP*     3.4    32.4    -      -       -      +
    696D  GLY*     3.0    26.7    +      -       -      -
    697D  HIS      3.0     9.1    +      -       -      +
    717D  ALA*     1.3    73.4    -      -       -      +
    719D  THR*     1.3    61.8    +      -       -      +
    720D  GLY      3.3    28.0    +      -       -      +
    721D  ASN*     4.0     9.3    +      -       -      -
    722D  THR      3.5     4.9    -      -       -      +
    723D  ILE*     3.4    23.3    -      -       +      -
    772D  LEU*     4.3    21.4    -      -       -      +
----------------------------------------------------------
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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