Contacts of the strand formed by residues 214 - 223 (chain C) in PDB entry 2XAC


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 HIS 214 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210C  THR*     4.2     1.1    -      -       -      -
    211C  VAL      3.0    32.2    +      -       -      +
    212C  ASN      3.2     5.5    +      -       -      +
    213C  GLY*     1.3    75.0    -      -       -      +
    215C  LEU*     1.3    69.3    +      -       -      +
    216C  TYR*     3.2    54.1    +      +       +      +
----------------------------------------------------------
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Residues in contact with LEU 215 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  GLU*     3.4    46.0    -      -       +      +
    209C  ALA      3.9     4.7    -      -       -      +
    210C  THR*     3.4    22.7    -      -       +      +
    213C  GLY      3.6     5.1    +      -       -      +
    214C  HIS*     1.3    79.3    +      -       -      +
    216C  TYR*     1.3    62.0    +      -       -      +
    217C  LYS*     3.8    20.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 216 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130C  ASP      4.9     2.8    +      -       -      -
    132C  GLY      4.2    10.3    +      -       -      -
    133C  ARG*     4.1    21.9    +      -       +      +
    134C  PRO*     3.3    26.0    -      -       +      -
    135C  PHE*     3.3    18.2    -      +       +      -
    208C  GLU*     3.4     4.2    -      -       -      +
    209C  ALA      2.8    44.9    +      -       -      +
    211C  VAL*     3.6    26.6    +      -       +      +
    214C  HIS*     3.2    49.9    +      +       -      +
    215C  LEU*     1.3    72.5    -      -       -      +
    217C  LYS*     1.3    59.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 217 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  PHE*     4.2     2.6    -      -       -      -
    139C  TYR      5.1     1.0    -      -       -      +
    140C  SER*     3.9     8.3    -      -       -      +
    206C  THR*     5.4     7.1    -      -       +      -
    207C  CYS      3.2     8.7    -      -       -      +
    208C  GLU*     2.6    37.6    +      -       +      +
    215C  LEU*     3.9    21.8    -      -       -      +
    216C  TYR*     1.3    74.8    -      -       -      +
    218C  THR*     1.3    60.5    +      -       -      +
    219C  ASN*     3.6    20.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 218 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  PHE*     3.5    41.2    -      -       +      -
    137C  GLU      4.4     9.2    +      -       -      -
    140C  SER*     2.7    22.6    +      -       -      -
    158C  CYS*     3.7     5.6    -      -       +      -
    206C  THR*     3.6     1.4    -      -       -      -
    207C  CYS*     2.8    44.3    +      -       +      -
    217C  LYS*     1.3    73.5    -      -       -      +
    219C  ASN*     1.3    60.3    +      -       -      +
    220C  TYR*     3.2    36.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 219 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140C  SER*     2.9    39.5    +      -       -      -
    141C  GLU*     5.2     2.1    -      -       -      +
    143C  PRO*     3.3    26.8    -      -       +      +
    144C  GLU*     3.1    17.2    +      -       -      +
    204C  LEU*     3.9     9.7    -      -       +      +
    205C  LEU      3.7     3.4    -      -       -      -
    206C  THR*     3.4    21.8    -      -       -      +
    217C  LYS*     3.6    17.9    +      -       -      +
    218C  THR*     1.3    76.4    -      -       -      +
    220C  TYR*     1.3    73.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 220 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  PHE*     5.9     0.2    -      -       -      +
    137C  GLU*     5.0    14.1    +      -       +      +
    143C  PRO*     3.6     2.4    -      -       -      +
    144C  GLU*     3.5    27.6    -      -       +      -
    146C  ILE*     3.7    28.7    -      -       +      -
    156C  ILE*     3.7    22.9    -      -       +      -
    157C  PRO*     3.8    15.2    +      -       +      -
    158C  CYS*     3.2    41.3    -      -       +      +
    203C  GLY      3.1     2.6    -      -       -      +
    204C  LEU*     3.5     2.3    -      -       -      +
    205C  LEU*     2.8    48.6    +      -       +      +
    207C  CYS*     4.1     1.3    -      -       -      -
    218C  THR*     3.2    39.1    +      -       -      +
    219C  ASN*     1.3    89.2    -      -       -      +
    221C  LEU*     1.3    60.8    +      -       -      +
    222C  THR*     5.1     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 221 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  TRP*     3.9    23.6    -      -       +      -
     21A  TYR*     4.6    13.2    -      -       +      +
     62A  PRO*     6.0     1.3    -      -       +      -
     48B  VAL*     3.8    28.3    -      -       +      -
     81B  LEU*     4.0     4.0    -      -       +      -
     83B  ILE*     5.2     3.4    -      -       +      -
    143C  PRO*     3.6    14.9    -      -       +      +
    144C  GLU      2.8    10.2    +      -       -      +
    145C  ILE*     3.3    28.0    -      -       +      +
    146C  ILE      2.8    30.7    +      -       -      +
    203C  GLY*     3.3    26.2    -      -       -      -
    204C  LEU*     3.9     8.5    -      -       +      +
    220C  TYR*     1.3    72.5    -      -       -      +
    222C  THR*     1.3    62.4    +      -       -      +
    223C  HIS*     5.8     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 222 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  PRO*     5.3     2.8    -      -       -      +
    146C  ILE*     3.2    28.7    -      -       +      +
    148C  MET*     3.5    20.0    -      -       +      -
    154C  LEU*     4.2    13.0    -      -       +      -
    156C  ILE*     4.7     2.0    -      -       +      -
    201C  GLU      2.9    13.0    +      -       -      +
    202C  ILE*     3.4     4.6    -      -       -      +
    203C  GLY*     2.8    44.4    +      -       -      -
    205C  LEU*     4.0    15.9    -      -       +      -
    220C  TYR      4.9     0.4    -      -       -      +
    221C  LEU*     1.3    82.8    -      -       -      +
    223C  HIS*     1.3    68.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 223 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  PRO*     5.6     6.3    -      -       +      +
     63A  ASP*     5.6     2.2    -      -       -      +
     83B  ILE*     4.3    28.6    -      -       +      +
    145C  ILE*     3.3    33.3    -      -       +      +
    146C  ILE      3.3    11.8    +      -       -      -
    147C  HIS*     3.4    30.8    +      +       +      +
    148C  MET*     2.9    32.9    +      -       -      +
    202C  ILE*     4.2    12.8    -      -       +      -
    221C  LEU*     4.5     3.4    -      -       +      -
    222C  THR*     1.3    79.1    -      -       -      +
    224C  ARG*     1.3    77.8    +      -       -      +
    225C  GLN      5.7     1.3    -      -       -      -
----------------------------------------------------------
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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