Contacts of the strand formed by residues 244 - 251 (chain A) in PDB entry 2H07


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 244 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  ALA*     3.0     7.0    -      -       +      +
    218A  LEU*     3.9    12.3    -      -       +      -
    233A  ALA*     4.1    15.9    -      -       +      +
    236A  LEU*     3.7    33.9    -      -       +      -
    237A  LEU*     4.6     7.6    -      -       +      +
    241A  ALA*     5.4     0.7    -      -       +      -
    243A  ARG*     1.3    72.2    -      -       -      +
    245A  TYR*     1.3    74.0    +      -       -      +
    265A  CYS*     3.2    40.9    +      -       -      +
    266A  PHE*     3.5     7.1    -      -       +      -
    267A  GLU*     3.2    20.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154A  TRP*     4.4    13.7    -      +       -      -
    158A  ASN      4.6     6.5    +      -       -      -
    159A  ILE*     3.7    32.1    -      -       +      +
    215A  VAL*     3.4    32.5    -      -       +      -
    216A  ALA      2.8     8.8    +      -       -      +
    217A  ILE*     4.3    15.5    -      -       +      -
    218A  LEU*     2.8    27.4    +      -       -      +
    243A  ARG*     3.1    36.6    +      -       +      -
    244A  VAL*     1.3    82.9    -      -       -      +
    246A  ALA*     1.3    64.2    +      -       -      +
    247A  ILE*     5.1     3.6    -      -       +      -
    266A  PHE*     4.3     0.4    -      -       -      -
    267A  GLU*     3.2    29.8    -      -       +      +
    268A  ALA*     3.7    26.0    -      -       +      +
    270A  VAL*     5.7     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  LEU*     3.2     7.2    -      -       +      +
    229A  ILE*     4.2    16.6    -      -       +      -
    245A  TYR*     1.3    76.9    -      -       -      +
    247A  ILE*     1.3    63.1    +      -       -      +
    248A  LEU*     4.1     3.4    -      -       +      -
    266A  PHE*     3.5    31.6    -      -       +      -
    268A  ALA      3.3     5.5    +      -       -      -
    269A  VAL*     3.3    17.6    -      -       +      +
    270A  VAL*     2.9    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  VAL*     3.6    31.6    -      -       +      +
    154A  TRP*     4.4    16.4    -      -       +      -
    155A  ILE*     3.6    33.7    -      -       +      -
    159A  ILE*     5.6     0.2    -      -       +      -
    217A  ILE*     3.8    20.6    -      -       +      -
    218A  LEU      2.7    12.4    +      -       -      +
    219A  VAL*     3.5    11.6    -      -       +      +
    220A  ASP      3.1    25.1    +      -       -      +
    245A  TYR*     5.1     2.9    -      -       +      -
    246A  ALA*     1.3    77.9    -      -       -      +
    248A  LEU*     1.3    68.3    +      -       -      +
    270A  VAL*     3.4    24.9    -      -       +      +
    290A  ILE*     5.6     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  LEU      5.7     0.2    -      -       -      +
    220A  ASP*     3.3    32.8    -      -       +      +
    222A  MET*     3.8     4.9    -      -       -      +
    223A  ALA*     3.2    37.7    -      -       +      +
    226A  CYS*     5.3     1.1    -      -       -      -
    229A  ILE*     4.3    17.0    -      -       +      -
    246A  ALA*     4.9     2.7    -      -       +      -
    247A  ILE*     1.3    85.5    -      -       -      +
    249A  THR*     1.3    60.8    +      -       -      +
    250A  HIS      4.0    11.4    -      -       -      +
    253A  PHE*     3.6    22.9    -      -       +      -
    269A  VAL*     4.4     8.7    -      -       +      -
    270A  VAL      2.8     6.7    +      -       -      +
    271A  VAL*     3.0    38.8    -      -       +      -
    272A  THR*     3.5     1.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  MET*     4.3     4.3    -      -       -      +
    128A  ASP*     3.4    31.7    +      -       +      +
    147A  ALA*     4.3     4.7    -      -       -      -
    177A  ARG*     6.2     0.4    -      -       -      -
    220A  ASP      3.7     1.7    +      -       -      +
    221A  ASP*     2.8    34.5    +      -       -      +
    248A  LEU*     1.3    73.9    -      -       -      +
    250A  HIS*     1.3    79.1    +      -       +      +
    251A  GLY      3.9     0.9    +      -       -      -
    272A  THR*     2.5    51.7    +      -       -      +
    274A  THR*     3.2     1.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  PRO      3.2    16.8    -      -       -      -
     91A  CYS*     3.8    29.6    -      -       -      -
     92A  PHE      5.6     0.6    +      -       -      -
    127A  MET      3.0    29.1    +      -       -      -
    128A  ASP*     3.2    15.0    +      -       -      +
    221A  ASP*     3.0    23.4    +      -       +      +
    222A  MET*     3.1    40.7    -      -       +      +
    223A  ALA      3.3     5.9    +      -       -      -
    248A  LEU*     4.0     5.2    -      -       -      +
    249A  THR*     1.3    91.2    +      -       +      +
    251A  GLY*     1.3    60.4    +      -       -      +
    252A  ILE*     3.6     2.0    +      -       +      -
    274A  THR*     3.1    27.6    +      -       +      +
    275A  ILE*     4.5     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  ALA      4.1     2.9    -      -       -      -
    248A  LEU*     4.9     0.7    -      -       -      -
    249A  THR      3.9     3.6    +      -       -      -
    250A  HIS*     1.3    69.0    -      -       -      +
    252A  ILE*     1.3    57.8    +      -       -      -
    253A  PHE*     2.9    33.7    +      -       -      +
    271A  VAL*     4.2     8.2    -      -       -      +
    272A  THR      5.3     0.6    +      -       -      -
    274A  THR*     4.7     1.0    +      -       -      -
    275A  ILE*     3.9    15.4    -      -       -      +
    276A  PRO      5.2     0.2    -      -       -      +
    277A  GLN*     3.0    29.8    +      -       -      +
    280A  LYS*     5.5     0.7    -      -       -      +
----------------------------------------------------------
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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