Contacts of the strand formed by residues 238 - 245 (chain 1) in PDB entry 1AR9


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 GLY 238 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1091  LYS*     3.7     4.9    +      -       -      +
    1101  ILE*     3.0    25.2    +      -       -      +
    1601  VAL      3.5     6.7    -      -       -      -
    1621  PRO*     3.4    19.6    -      -       -      +
    2351  ASN*     3.1    23.1    +      -       -      -
    2371  PHE*     1.3    80.7    -      -       -      +
    2391  ILE*     1.3    67.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 239 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1071  VAL*     3.7    24.2    -      -       +      -
    1081  TRP      3.1    16.4    -      -       -      +
    1091  LYS*     3.7    17.5    -      -       +      +
    1101  ILE*     4.1     6.9    -      -       -      +
    1591  TYR*     3.4     5.4    -      -       -      -
    1601  VAL*     2.8    61.1    +      -       +      +
    1661  VAL*     4.2    20.2    -      -       +      -
    2351  ASN*     4.8     5.4    -      -       -      +
    2371  PHE      4.1     0.2    +      -       -      -
    2381  GLY*     1.3    81.4    -      -       -      +
    2401  LEU*     1.3    74.2    +      -       -      +
    2411  ALA*     3.8    11.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 240 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      01  SPH      4.0    36.3    -      -       +      -
     901  MET*     3.5    17.0    -      -       +      +
    1071  VAL*     3.4     2.9    -      -       -      -
    1081  TRP*     2.8    60.1    +      -       +      -
    1101  ILE*     4.0    14.1    -      -       +      +
    1341  LEU*     5.1     3.8    -      -       +      -
    1361  PHE*     3.9    28.3    -      -       +      -
    1571  ILE*     4.3    12.6    -      -       +      -
    1581  MET      3.4     3.1    -      -       -      +
    1591  TYR*     4.1     8.5    -      -       -      -
    2391  ILE*     1.3    78.9    -      -       -      +
    2411  ALA*     1.3    59.7    +      -       -      +
    2421  VAL*     4.8     0.2    -      -       +      -
    2591  VAL*     4.5     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 241 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1061  ALA      3.1     8.3    -      -       -      +
    1071  VAL*     4.4     3.6    -      -       +      -
    1561  GLN      3.4     2.1    -      -       -      +
    1571  ILE*     3.6     0.7    -      -       -      -
    1581  MET*     2.8    40.7    +      -       +      +
    1601  VAL*     4.4     3.4    -      -       +      -
    1671  PRO*     3.7    20.6    -      -       +      -
    1751  TRP*     3.5    22.9    -      -       +      -
    2391  ILE*     3.8    13.6    -      -       +      +
    2401  LEU*     1.3    73.5    -      -       -      +
    2421  VAL*     1.3    60.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 242 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     901  MET*     3.6    31.9    -      -       +      -
     921  VAL*     3.3    12.2    -      -       +      +
    1051  PHE*     3.3     4.9    -      -       -      +
    1061  ALA*     2.8    34.6    +      -       +      -
    1551  TYR*     4.8     4.9    -      -       +      -
    1561  GLN      3.2     8.3    -      -       -      +
    1571  ILE*     4.0    29.6    -      -       +      -
    1751  TRP*     3.9     1.1    -      -       -      -
    2401  LEU*     4.8     0.2    -      -       +      -
    2411  ALA*     1.3    80.7    -      -       -      +
    2431  ARG*     1.3    70.3    +      -       -      +
    2571  ILE*     3.7    33.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 243 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     921  VAL*     4.4     3.8    -      -       -      -
    1031  LYS*     5.8     0.2    -      -       -      -
    1051  PHE*     4.1    10.8    -      -       +      +
    1551  TYR*     3.3     8.2    -      -       -      +
    1561  GLN*     2.9    64.5    +      -       +      -
    1701  TRP*     2.8    58.3    +      -       +      +
    1711  ASP*     3.9    10.5    -      -       -      +
    1751  TRP*     3.5    45.4    +      -       +      +
    1841  PHE*     4.9     2.8    -      -       -      -
    2421  VAL*     1.3    78.3    -      -       -      +
    2441  VAL*     1.3    67.1    +      -       -      +
    2451  VAL*     4.0    23.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 244 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     921  VAL*     3.9    14.6    -      -       +      +
     931  ASP      3.9    23.9    +      -       -      +
     941  ASN*     4.0    10.8    -      -       +      +
    1031  LYS*     3.0    28.1    +      -       -      +
    1041  LEU      5.5     0.8    +      -       -      -
    1531  GLN*     3.6    29.4    -      -       +      +
    1541  VAL      3.7     4.7    -      -       -      +
    1551  TYR*     3.9    24.0    -      -       +      -
    1701  TRP*     3.5     8.0    -      -       -      -
    2431  ARG*     1.3    73.5    -      -       -      +
    2451  VAL*     1.3    59.3    +      -       -      +
    2461  ASN*     3.8    25.6    -      -       +      +
    2551  SER*     4.7     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 245 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1541  VAL*     2.8    30.6    +      -       +      +
    1551  TYR      4.0     2.0    -      -       -      -
    1561  GLN*     3.7    33.7    -      -       +      +
    1701  TRP*     3.5    14.7    -      -       -      -
    1841  PHE*     4.1    16.6    -      -       +      -
    2431  ARG*     4.0    22.8    +      -       -      +
    2441  VAL*     1.3    71.2    -      -       -      +
    2461  ASN*     1.3    66.3    +      -       -      +
    2471  ASP*     3.6     2.8    +      -       -      +
----------------------------------------------------------
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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