Contacts of the strand formed by residues 1717 - 1725 (chain B) in PDB entry 2D4Q


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 LYS1717 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1715B  ASP      5.0     3.1    -      -       -      +
   1716B  LEU*     1.3    74.9    -      -       -      +
   1718B  VAL*     1.3    59.9    +      -       -      +
   1719B  PHE*     4.0    15.9    -      -       +      -
   1734B  ILE      3.8     1.7    -      -       -      +
   1735B  LYS*     3.6     1.4    -      -       -      -
   1736B  VAL*     2.9    41.4    +      -       +      +
   1802B  SER*     3.9    21.0    +      -       -      +
   1805B  HIS*     6.0     4.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1718 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1716B  LEU*     3.7    23.5    +      -       +      +
   1717B  LYS*     1.3    74.9    -      -       -      +
   1719B  PHE*     1.3    69.0    +      -       -      +
   1720B  HIS*     3.6    40.9    +      -       +      +
   1733B  SER*     4.6     2.5    -      -       -      -
   1734B  ILE      3.7     2.5    -      -       -      -
   1735B  LYS*     4.2    32.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1719 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1717B  LYS*     4.0    20.4    -      -       +      -
   1718B  VAL*     1.3    80.1    -      -       -      +
   1720B  HIS*     1.3    63.1    +      -       -      +
   1722B  ALA*     4.5     1.7    -      -       -      +
   1732B  VAL      4.3     0.9    -      -       -      +
   1733B  SER*     3.4     1.7    -      -       -      -
   1734B  ILE*     2.9    45.0    +      -       +      +
   1736B  VAL*     4.2    14.4    -      -       +      -
   1793B  HIS*     3.9    22.4    -      -       +      +
   1795B  GLU*     4.6    12.8    -      -       +      -
   1798B  ALA*     4.0    21.3    -      -       +      -
   1799B  ILE*     3.6    52.3    -      -       +      -
   1802B  SER*     4.1    10.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS1720 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1718B  VAL*     3.6    28.5    +      -       +      +
   1719B  PHE*     1.3    72.6    -      -       -      +
   1721B  ASN*     1.3    76.7    +      -       -      +
   1722B  ALA      3.3     0.4    -      -       -      -
   1733B  SER*     3.1    25.1    +      -       -      +
   1735B  LYS*     5.9     1.8    -      -       -      -
   1793B  HIS*     2.7    33.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN1721 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1720B  HIS*     1.3    86.3    -      -       -      +
   1722B  ALA*     1.3    62.8    +      -       -      +
   1723B  LEU*     5.4     0.5    -      -       -      +
   1731B  LYS*     6.3     2.0    -      -       -      -
   1732B  VAL      3.7     6.1    +      -       -      +
   1733B  SER*     4.6     1.2    +      -       -      -
   1792B  MET      4.6     1.2    -      -       -      +
   1793B  HIS*     3.7     9.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1722 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1719B  PHE      4.5     3.6    -      -       -      +
   1720B  HIS      3.3     1.2    -      -       -      -
   1721B  ASN*     1.3    81.2    -      -       -      +
   1723B  LEU*     1.3    62.3    +      -       -      +
   1731B  LYS*     3.6     6.2    -      -       -      +
   1732B  VAL*     2.9    40.0    +      -       +      +
   1734B  ILE*     3.8    31.0    -      -       +      -
   1791B  PHE*     5.1     0.9    -      -       +      -
   1792B  MET      3.4    10.5    -      -       -      +
   1793B  HIS*     3.6    15.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1723 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1721B  ASN      5.4     0.2    -      -       -      +
   1722B  ALA*     1.3    76.6    -      -       -      +
   1724B  LYS*     1.3    62.5    +      -       -      +
   1725B  LEU*     3.5    26.6    +      -       +      +
   1729B  ASP*     3.7    26.0    -      -       +      +
   1730B  THR*     3.4    24.9    -      -       -      +
   1731B  LYS*     4.0    12.6    -      -       +      +
   1791B  PHE*     3.3     6.7    -      -       -      -
   1792B  MET*     2.9    51.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1724 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1663B  SER*     5.3     3.4    +      -       -      -
   1723B  LEU*     1.3    72.4    -      -       -      +
   1725B  LEU*     1.3    69.7    +      -       -      +
   1726B  ALA*     5.1     8.1    -      -       +      -
   1729B  ASP*     3.2     7.8    -      -       -      +
   1730B  THR*     2.8    57.0    +      -       +      +
   1732B  VAL*     4.2    11.1    -      -       +      +
   1743B  VAL*     5.1     8.7    -      -       +      +
   1760B  ASP*     4.6    13.5    +      -       -      -
   1762B  TYR*     4.8     4.2    +      -       -      -
   1789B  LEU*     4.3    29.3    -      -       -      +
   1790B  THR      3.6     8.5    -      -       -      +
   1791B  PHE*     3.7    25.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1725 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1723B  LEU*     3.7    20.9    -      -       +      +
   1724B  LYS*     1.3    76.3    -      -       -      +
   1726B  ALA*     1.3    64.3    +      -       -      +
   1729B  ASP*     3.2    28.7    -      -       -      +
   1777B  GLN*     3.7    11.7    -      -       -      +
   1790B  THR*     2.9    44.2    +      -       +      +
   1792B  MET*     3.6    35.9    -      -       +      -
----------------------------------------------------------
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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