Contacts of the strand formed by residues 89 - 105 (chain A) 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 GLN 89 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  LEU*     3.8     2.7    -      -       -      +
     82A  MET*     2.8    55.8    +      -       +      +
     84A  ARG*     3.4    30.7    -      -       -      +
     87A  SER      3.9     2.0    +      -       -      +
     88A  SER*     1.3    77.0    -      -       -      +
     90A  LEU*     1.3    70.3    +      -       -      +
     91A  GLY*     5.3     0.2    -      -       -      -
    142X  ILE*     3.9     8.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  GLN*     4.2    24.5    -      -       +      +
     80A  ILE      3.5     9.4    -      -       -      +
     81A  LEU*     3.8    17.3    -      -       +      -
     82A  MET*     3.7     2.0    -      -       -      -
     89A  GLN*     1.3    87.9    +      -       -      +
     91A  GLY*     1.3    58.3    +      -       -      +
     17B  TRP*     3.6    34.8    -      -       +      -
    141X  GLU*     3.8    36.3    -      -       +      +
    142X  ILE*     3.5    20.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  LEU*     4.5     5.4    -      -       -      -
     79A  GLN*     3.1     4.5    -      -       -      -
     80A  ILE*     2.7    42.4    +      -       -      +
     82A  MET*     3.5    24.0    -      -       -      +
     90A  LEU*     1.3    74.6    -      -       -      +
     92A  GLU*     1.3    58.9    +      -       -      -
     93A  MET      3.7     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  LEU*     3.4    17.8    -      -       -      +
     77A  ARG*     3.4    57.0    +      -       +      +
     78A  MET      4.0     2.5    -      -       -      +
     79A  GLN*     4.3     4.5    -      -       +      +
     91A  GLY*     1.3    70.7    -      -       -      -
     93A  MET*     1.3    60.1    +      -       -      +
     94A  SER*     4.1     4.0    +      -       -      +
     14B  VAL*     3.5    28.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  LEU*     3.7    22.9    -      -       +      -
     36A  THR*     2.9    47.6    -      -       +      +
     39A  LEU*     3.6    21.1    -      -       +      -
     52A  VAL*     3.6    43.1    -      -       +      -
     76A  VAL      3.1     3.5    -      -       -      +
     77A  ARG*     3.4     0.6    -      -       -      -
     78A  MET*     2.7    50.3    +      -       +      +
     80A  ILE*     3.6    11.9    -      -       +      -
     91A  GLY      3.7     0.8    +      -       -      -
     92A  GLU*     1.3    71.4    -      -       -      +
     94A  SER*     1.3    67.2    +      -       -      +
     95A  LEU*     4.4     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  THR*     4.1    12.5    +      -       -      +
     39A  LEU*     5.2     0.8    -      -       -      +
     75A  GLN*     4.1    17.0    +      -       -      -
     76A  VAL      3.1     6.5    -      -       -      -
     77A  ARG*     3.4    28.8    -      -       -      +
     92A  GLU*     4.1     5.1    +      -       -      +
     93A  MET*     1.3    74.7    -      -       -      +
     95A  LEU*     1.3    63.5    +      -       -      +
     11B  GLN*     4.6     3.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  VAL*     4.0    16.8    -      -       +      -
     34A  PRO      5.1     0.2    -      -       -      +
     36A  THR*     3.9    22.2    -      -       +      -
     52A  VAL*     3.7    19.5    -      -       +      -
     54A  VAL*     3.7    26.5    -      -       +      -
     56A  ARG*     4.5     5.8    -      -       -      +
     75A  GLN*     3.0    34.6    -      -       -      +
     76A  VAL*     3.1    37.4    +      -       +      +
     78A  MET*     4.3    14.1    -      -       +      -
     93A  MET*     4.4     5.8    -      -       +      -
     94A  SER*     1.3    76.5    -      -       -      +
     96A  GLU*     1.3    62.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  VAL*     4.1     4.3    -      -       -      +
     56A  ARG*     2.7    44.9    +      -       -      +
     73A  GLN*     2.9    33.4    +      -       -      +
     75A  GLN*     3.0    14.6    +      -       -      +
     95A  LEU*     1.3    74.8    -      -       -      +
     97A  GLU*     1.3    57.2    +      -       -      +
     98A  HIS*     3.4    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  THR      5.0     1.2    -      -       -      +
     54A  VAL*     3.9     7.5    -      -       +      -
     55A  GLN*     3.1    50.7    +      -       +      +
     73A  GLN*     3.2     1.4    -      -       -      +
     74A  HIS*     2.7    77.2    +      -       -      +
     76A  VAL*     3.3    37.2    -      -       +      +
     78A  MET*     5.7     1.6    -      -       -      +
     96A  GLU*     1.3    73.1    -      -       -      +
     98A  HIS*     1.3    63.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  PRO*     3.6     4.7    -      -       -      +
     55A  GLN*     2.7    46.5    +      -       -      +
     56A  ARG*     3.6    22.1    -      -       +      -
     57A  CYS*     3.4    28.1    +      -       +      -
     70A  PRO*     3.4    38.8    -      -       +      +
     72A  GLY      3.5     3.6    -      -       -      +
     73A  GLN*     3.7    15.4    +      -       +      -
     74A  HIS*     4.6     1.8    -      -       -      -
     96A  GLU*     3.4    33.2    +      -       +      +
     97A  GLU*     1.3    79.4    -      -       -      +
     99A  SER*     1.3    54.6    +      -       -      +
    101A  CYS*     4.5     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  PRO*     3.0    27.6    -      -       -      +
     55A  GLN*     3.8     7.0    -      -       -      -
     72A  GLY*     2.7    23.6    +      -       -      -
     73A  GLN*     3.5     5.1    +      -       -      +
     74A  HIS*     3.9    17.7    +      -       -      -
     97A  GLU      4.1     0.2    +      -       -      -
     98A  HIS*     1.3    73.2    -      -       -      +
    100A  GLN*     1.3    78.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  PRO*     3.3     4.3    -      -       -      +
     71A  THR*     2.7    40.8    +      -       -      +
     72A  GLY*     2.9    25.4    +      -       -      +
     99A  SER*     1.3    91.0    +      -       -      +
    101A  CYS*     1.3    59.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  CYS*     4.1    10.1    -      -       -      +
     27A  GLN*     4.1    16.4    -      -       -      -
     28A  PRO*     3.4    28.4    -      -       +      +
     57A  CYS*     2.0    54.5    -      -       +      -
     69A  VAL      3.3     4.5    -      -       -      +
     71A  THR*     3.7     5.8    +      -       -      -
     98A  HIS*     4.5     2.0    -      -       -      -
     99A  SER      4.0     0.6    +      -       -      -
    100A  GLN*     1.3    79.2    -      -       -      +
    102A  GLU*     1.3    66.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  CYS*     3.7     6.7    -      -       -      -
     69A  VAL*     2.6    45.4    +      -       -      +
     71A  THR*     3.4    31.7    +      -       +      +
    101A  CYS*     1.3    79.0    -      -       -      +
    103A  CYS*     1.3    60.9    +      -       -      +
    104A  ARG*     3.6    24.8    +      -       +      -
    199C  TYR*     5.2     2.3    +      -       +      -
    200C  LYS*     4.6    23.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  THR*     5.9     1.6    -      -       -      -
     26A  CYS*     3.3    28.9    -      -       +      +
     60A  CYS      4.2     0.7    -      -       -      -
     61A  CYS*     2.0    57.4    -      -       +      -
     62A  PRO*     4.4     5.2    -      -       +      -
     66A  LEU*     4.5    10.9    -      -       +      +
     67A  GLU      3.6     0.9    -      -       -      -
    102A  GLU*     1.3    74.0    -      -       -      +
    104A  ARG*     1.3    60.4    +      -       -      +
    199C  TYR*     3.6    21.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  LEU*     3.7     4.9    -      -       -      -
     67A  GLU*     2.5    44.3    +      -       +      +
     69A  VAL*     3.7    27.2    -      -       +      +
     71A  THR*     5.3     4.8    -      -       -      +
    102A  GLU*     3.4    29.1    +      -       +      +
    103A  CYS*     1.3    79.0    -      -       -      +
    105A  PRO*     1.4    73.0    -      -       +      +
    199C  TYR*     4.2    18.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  GLY      4.0     3.1    -      -       -      +
     66A  LEU*     3.5    17.0    -      -       +      -
     67A  GLU*     4.4     4.9    -      -       -      +
    104A  ARG*     1.4    96.5    -      -       +      +
    106A  LYS*     1.3    67.5    +      -       -      +
    107A  LYS*     5.4     0.5    -      -       -      +
    150C  GLU*     5.3     2.9    -      -       -      +
    199C  TYR*     3.6    36.1    -      -       +      -
----------------------------------------------------------
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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