Contacts of the strand formed by residues 43 - 49 (chain C) in PDB entry 1XV2


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 ASP 43 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  LEU*     3.2    25.5    +      -       +      +
     40C  THR      3.4    15.7    -      -       -      +
     41C  GLY      3.1     0.6    -      -       -      -
     42C  SER*     1.3    73.4    -      -       -      +
     44C  GLY*     1.3    62.1    +      -       -      +
     55C  HIS*     2.7    38.0    +      -       -      -
     57C  ASN*     3.8    17.7    +      -       -      +
     58C  GLU*     4.3     4.2    +      -       -      +
    126C  MSE      4.5     0.3    -      -       -      +
    128C  ALA*     3.5    31.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 44 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  THR*     2.8    26.6    +      -       -      -
     42C  SER      3.3     1.0    +      -       -      -
     43C  ASP*     1.3    77.8    +      -       -      +
     45C  GLU*     1.3    72.3    +      -       -      +
     46C  VAL      4.3     0.2    -      -       -      -
     55C  HIS*     3.7     3.4    -      -       -      -
     56C  ALA      3.4    12.1    -      -       -      -
     57C  ASN*     4.1     4.9    -      -       -      -
    126C  MSE      2.7    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 45 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37C  ALA      3.9     1.7    -      -       -      +
     38C  THR*     5.5     0.7    -      -       -      -
     44C  GLY*     1.3    78.8    -      -       -      +
     46C  VAL*     1.3    62.8    +      -       -      +
     47C  ILE*     3.5     6.2    -      -       +      +
     55C  HIS*     3.3     5.5    -      -       -      -
     56C  ALA*     2.8    35.1    +      -       +      +
    124C  ARG*     2.9    32.6    +      -       -      +
    125C  MSE      3.8     8.1    -      -       -      -
    126C  MSE      2.8    26.8    +      -       -      +
    175C  HIS*     3.2    28.2    +      -       +      +
    185C  GLY*     3.7    18.8    -      -       -      -
    186C  HIS*     3.5    17.5    -      -       -      +
    803C   ZN      3.8     3.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 46 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25C  ILE*     4.2     2.5    -      -       +      -
     36C  ILE*     3.5     1.4    -      -       -      -
     37C  ALA*     2.8    31.8    +      -       +      +
     38C  THR*     3.8    16.6    -      -       -      +
     39C  LEU*     3.7    33.0    -      -       +      -
     45C  GLU*     1.3    74.8    -      -       -      +
     47C  ILE*     1.3    65.7    +      -       -      +
     48C  PHE*     4.0    32.5    -      -       +      -
     53C  ALA*     4.8     0.7    -      -       +      -
     54C  TYR      3.2     8.5    -      -       -      +
     55C  HIS*     4.0     6.1    -      -       +      -
     65C  LEU*     4.2    14.8    -      -       +      -
    175C  HIS*     2.8    19.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 47 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35C  GLY      3.9     2.0    -      -       -      -
     45C  GLU*     3.5    24.2    -      -       +      +
     46C  VAL*     1.3    77.9    -      -       -      +
     48C  PHE*     1.3    67.0    +      -       -      +
     49C  LEU*     3.5    11.1    +      -       +      -
     52C  LYS      3.4     2.3    -      -       -      +
     53C  ALA*     3.7     0.2    -      -       -      -
     54C  TYR*     2.8    47.8    +      -       +      +
     56C  ALA*     4.6     1.8    -      -       +      +
     62C  PHE*     4.3    20.2    -      -       +      -
    154C  ALA      5.6     0.2    -      -       -      +
    156C  VAL*     3.6    26.7    -      -       +      -
    175C  HIS*     3.8    15.7    -      -       +      +
    176C  PHE      3.8    22.9    -      -       -      +
    177C  ALA*     4.3    14.1    -      -       +      +
    185C  GLY      4.6     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 48 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25C  ILE*     4.1    17.0    -      -       +      -
     28C  LEU*     4.0    20.4    -      -       +      -
     29C  LEU*     3.7    27.8    -      -       +      -
     33C  ASN      3.9     4.7    -      -       -      -
     34C  LEU*     3.2    12.1    -      -       -      +
     35C  GLY*     2.9    53.4    +      -       -      +
     36C  ILE*     3.7     5.4    -      -       -      -
     37C  ALA*     3.9    23.1    -      -       +      -
     46C  VAL*     4.0    12.3    -      -       +      -
     47C  ILE*     1.3    72.8    -      -       -      +
     49C  LEU*     1.3    59.3    +      -       -      +
     52C  LYS      3.3     2.5    -      -       -      +
     53C  ALA*     3.8    24.9    -      -       +      -
     74C  ALA*     4.4     7.0    -      -       +      -
     75C  SER      4.2     2.0    -      -       -      -
     76C  ILE*     3.6    19.7    -      -       +      -
    156C  VAL*     3.9     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 49 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  ASN      3.8     1.0    +      -       -      -
     34C  LEU*     4.9     2.5    -      -       +      +
     47C  ILE*     3.5    10.5    +      -       +      -
     48C  PHE*     1.3    75.2    -      -       -      +
     50C  ASP*     1.3    88.3    +      -       -      +
     51C  GLY      3.2     1.3    -      -       -      -
     52C  LYS*     2.9    27.3    +      -       -      +
     54C  TYR*     4.1    11.3    +      -       +      -
    113C  LYS*     4.1    13.9    -      -       -      +
    154C  ALA*     4.0    27.8    -      -       +      +
    156C  VAL*     3.7    24.2    -      -       +      -
    177C  ALA*     4.0    21.3    -      -       +      +
    181C  ARG*     3.4    30.4    +      -       -      +
----------------------------------------------------------
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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