Contacts of the strand formed by residues 245 - 250 (chain B) in PDB entry 2AVD


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 VAL 245 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ARG*     2.8    29.0    +      -       -      +
    195B  TYR*     3.6    22.0    -      -       -      +
    199B  LEU*     3.6    29.4    -      -       +      -
    239B  ILE*     4.6     0.9    -      -       +      +
    242B  ASP*     3.3    21.7    -      -       +      +
    243B  VAL      3.2     4.0    -      -       -      +
    244B  ARG*     1.3    82.9    -      -       -      +
    246B  TYR*     1.3    58.1    +      -       -      +
    247B  ILE*     3.6    20.0    -      -       +      -
    259B  ALA*     4.1    17.7    -      -       +      -
    260B  PHE      3.1    16.8    -      -       -      +
    261B  LYS*     4.2     0.2    -      -       -      -
    262B  ILE*     4.1     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ARG*     4.2     6.3    -      -       -      +
     96A  ASN*     3.3    46.4    -      -       +      +
     99A  ARG*     3.5    47.5    +      -       +      +
    100A  LEU*     3.2    26.7    +      -       -      +
    205B  GLY*     5.4     2.3    -      -       -      -
    245B  VAL*     1.3    72.4    -      -       -      +
    247B  ILE*     1.3    62.6    +      -       -      +
    260B  PHE*     2.8    68.3    +      +       +      +
    261B  LYS      4.5     5.4    +      -       -      -
    262B  ILE*     3.6    24.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  ARG      3.5    25.6    -      -       -      +
     62A  SER*     3.6    20.9    -      -       -      +
     64A  ARG*     3.8    26.5    -      -       -      +
     92A  GLN*     2.8    28.5    +      -       -      +
     96A  ASN*     2.9    15.4    +      -       -      +
    239B  ILE*     3.8    28.9    -      -       +      +
    240B  ARG*     4.2     2.2    -      -       -      -
    245B  VAL*     3.6    25.6    -      -       +      -
    246B  TYR*     1.3    81.8    -      -       -      +
    248B  SER*     1.3    59.8    +      -       -      +
    257B  THR*     4.9     3.6    -      -       +      -
    258B  LEU      3.3     5.8    -      -       -      +
    259B  ALA*     3.9    10.5    -      -       +      -
    260B  PHE*     4.8     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  SER*     4.5     3.4    -      -       -      -
     89A  GLU      4.9     1.2    +      -       -      -
     92A  GLN*     4.3     2.8    -      -       -      +
     93A  LEU*     3.5    38.8    +      -       -      +
     96A  ASN*     3.0    22.9    +      -       -      +
    247B  ILE*     1.3    72.4    +      -       -      +
    249B  LEU*     1.3    60.3    +      -       -      +
    250B  LEU*     4.1    12.3    -      -       -      +
    256B  LEU      3.7     1.2    -      -       -      +
    257B  THR*     3.5     3.3    -      -       -      +
    258B  LEU*     2.8    40.6    +      -       -      +
    260B  PHE*     4.7     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  TYR*     5.0     0.9    -      -       +      -
     58A  LEU*     3.5    47.0    -      -       +      +
     61A  ARG*     4.2    29.2    -      -       +      +
     62A  SER*     3.7    21.7    +      -       -      +
     89A  GLU*     5.3     5.7    -      -       -      +
    213B  VAL*     3.8    22.2    -      -       +      -
    214B  LEU*     4.2    16.8    -      -       +      -
    236B  ASN*     4.9     9.9    -      -       +      +
    248B  SER*     1.3    73.8    -      -       -      +
    250B  LEU*     1.3    73.4    +      -       -      +
    251B  PRO*     4.4     0.7    -      -       -      +
    256B  LEU      3.4     3.4    -      -       -      +
    257B  THR*     3.5    22.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  LEU*     4.1     3.4    -      -       -      -
     89A  GLU*     5.8     2.2    -      -       +      +
     93A  LEU*     4.3    14.1    -      -       +      -
    250A  LEU*     4.4    12.6    -      -       +      -
    252A  LEU*     4.1    26.7    -      -       +      -
     93B  LEU*     3.7    30.1    -      -       +      -
    248B  SER*     4.3    15.7    -      -       -      +
    249B  LEU*     1.3    84.3    -      -       -      +
    251B  PRO*     1.4    64.8    -      -       +      +
    252B  LEU*     3.0    19.2    +      -       +      +
    255B  GLY*     3.6     4.5    -      -       -      -
    256B  LEU*     2.7    43.5    +      -       +      +
    258B  LEU*     4.0    16.8    -      -       +      -
----------------------------------------------------------
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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