Contacts of the strand formed by residues 710 - 718 (chain B) 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 B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    575B  ARG*     3.9    26.0    -      -       -      +
    702B  GLU*     3.6    28.9    -      -       +      +
    703B  VAL      3.9     4.0    -      -       -      +
    704B  PRO*     4.5     1.3    -      -       -      -
    708B  GLY      5.0     0.7    -      -       -      +
    709B  SER*     1.3    76.4    +      -       -      +
    711B  ILE*     1.3    60.0    +      -       -      +
    712B  PHE      3.4    18.4    -      -       -      +
    713B  THR*     3.2    27.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 711 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    683B  HIS*     3.6    54.3    -      -       +      +
    703B  VAL      3.0    17.7    +      -       -      +
    704B  PRO      3.9    14.6    -      -       -      +
    705B  ALA*     4.0    20.9    -      -       +      -
    709B  SER*     3.4     1.8    +      -       -      -
    710B  VAL*     1.3    74.3    -      -       -      +
    712B  PHE*     1.3    58.8    +      -       +      +
    728B  ALA      5.1     0.4    -      -       -      -
    729B  GLY*     3.5     5.9    -      -       -      -
    730B  GLU*     3.0    42.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 712 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    688B  PHE*     3.8    31.4    -      +       -      -
    703B  VAL*     2.7    45.8    +      -       +      -
    710B  VAL*     3.4     6.3    -      -       -      +
    711B  ILE*     1.3    84.0    -      -       +      +
    713B  THR*     1.3    66.8    +      -       -      +
    714B  LEU*     3.9    19.7    -      -       +      -
    727B  GLY*     3.8    20.0    -      -       -      -
    728B  ALA      3.8    17.7    -      -       -      -
    729B  GLY*     3.8     7.2    -      -       -      -
    730B  GLU      3.5    27.4    -      -       -      +
    731B  ALA*     3.6    28.3    -      -       +      -
    734B  TRP*     4.1    14.4    -      +       -      -
    766B  ASN*     6.0     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 713 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700B  VAL*     3.6    28.0    -      -       +      -
    701B  CYS      3.4     2.7    -      -       -      -
    702B  GLU*     3.9    12.1    +      -       +      +
    710B  VAL*     3.2    23.2    -      -       -      +
    712B  PHE*     1.3    75.4    -      -       -      +
    714B  LEU*     1.3    62.4    +      -       -      +
    715B  LYS*     3.8    19.9    -      -       -      +
    726B  THR      3.8     1.4    -      -       -      +
    727B  GLY*     3.7     1.9    -      -       -      -
    728B  ALA*     3.1    39.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 714 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    668B  LEU*     3.2    27.9    -      -       +      +
    688B  PHE*     4.4    21.5    -      -       +      -
    700B  VAL*     3.3     3.6    -      -       -      +
    701B  CYS      2.8    36.4    +      -       -      +
    712B  PHE*     3.9    22.0    -      -       +      -
    713B  THR*     1.3    73.6    -      -       -      +
    715B  LYS*     1.3    81.2    +      -       -      +
    716B  ALA*     5.0     0.7    -      -       +      -
    725B  VAL*     3.4    23.8    -      -       +      -
    726B  THR      3.3    15.7    -      -       -      +
    727B  GLY*     3.8    13.2    -      -       -      -
    734B  TRP*     3.9    20.9    -      -       +      -
    736B  LEU*     5.5     4.7    -      -       +      -
    766B  ASN*     5.1     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 715 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    698B  GLU*     3.3    28.6    +      -       -      +
    699B  ALA      3.3     6.3    -      -       -      +
    700B  VAL*     3.8    20.0    -      -       +      -
    713B  THR*     3.8    22.9    -      -       +      +
    714B  LEU*     1.3    84.4    -      -       -      +
    716B  ALA*     1.3    60.0    +      -       -      +
    717B  ALA*     3.9     0.9    -      -       +      +
    724B  THR      3.5     2.0    -      -       -      +
    725B  VAL*     3.2     6.9    -      -       -      +
    726B  THR*     3.0    46.2    +      -       -      +
    728B  ALA*     6.4     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 716 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    668B  LEU*     4.1     9.4    -      -       +      +
    690B  LEU*     3.8    23.6    -      -       +      -
    693B  LEU*     2.9    30.1    -      -       +      +
    698B  GLU*     3.5     0.7    -      -       -      -
    699B  ALA      2.8    28.8    +      -       -      +
    714B  LEU*     5.0     0.2    -      -       +      -
    715B  LYS*     1.3    72.7    -      -       -      +
    717B  ALA*     1.3    59.3    +      -       -      +
    723B  ILE*     5.3     2.0    -      -       +      -
    724B  THR      3.8     4.0    -      -       -      -
    725B  VAL*     4.4    15.7    -      -       +      +
    736B  LEU*     6.3     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 717 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    693B  LEU*     4.3     0.2    -      -       -      -
    697B  HIS      3.5     5.4    -      -       -      +
    698B  GLU*     3.9    25.6    -      -       +      +
    715B  LYS*     3.9     1.3    -      -       +      -
    716B  ALA*     1.3    73.4    -      -       -      +
    718B  ARG*     1.3    60.4    +      -       -      +
    719B  THR      3.9     0.4    +      -       -      -
    722B  THR      3.6     1.6    -      -       -      +
    723B  ILE*     3.0     3.1    -      -       -      -
    724B  THR*     2.7    47.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 718 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    693B  LEU*     3.3    37.3    +      -       +      -
    694B  GLN*     3.7     4.6    -      -       -      +
    695B  ASP*     3.1    39.0    -      -       -      +
    696B  GLY*     2.7    32.6    +      -       -      -
    697B  HIS      3.0     8.8    +      -       -      -
    716B  ALA      4.0     0.6    +      -       -      -
    717B  ALA*     1.3    73.2    -      -       -      +
    719B  THR*     1.3    58.9    +      -       -      +
    720B  GLY      3.9    11.9    +      -       -      -
    721B  ASN*     3.8    13.5    +      -       -      +
    722B  THR      3.6     6.7    -      -       -      +
    723B  ILE*     3.3    22.9    -      -       +      -
    772B  LEU*     3.0    34.1    -      -       -      +
----------------------------------------------------------
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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