Contacts of the strand formed by residues 147 - 155 (chain D) in PDB entry 2IB8


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 147 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81D  ILE*     4.1    21.5    -      -       +      -
     85D  GLU*     3.4    31.4    -      -       -      +
     86D  VAL*     4.0    11.7    -      -       +      -
     87D  LYS*     3.0    31.0    +      -       -      +
    140D  LEU*     4.3     0.4    -      -       -      -
    145D  GLN      3.7     0.2    -      -       -      -
    146D  ASP*     1.3   100.2    +      -       -      +
    148D  MET*     1.3    68.0    +      -       -      +
    294D  VAL*     4.3     5.6    -      -       +      -
    295D  LEU      3.4    11.0    -      -       -      +
    296D  MET*     4.1    14.1    -      -       +      -
    300D  ALA*     4.1     7.6    -      -       +      -
    304D  LEU*     4.3     9.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 148 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86D  VAL*     4.2     3.4    -      -       -      -
     88D  GLU*     3.4    41.3    -      -       +      +
     89D  ALA*     4.5     0.9    -      -       -      +
     90D  TYR*     3.8    29.4    -      -       +      +
    136D  ALA*     3.8    37.5    -      -       +      +
    139D  SER*     3.9    17.5    -      -       -      -
    140D  LEU*     4.3     9.3    -      -       +      +
    145D  GLN*     3.9    17.7    -      -       +      -
    147D  VAL*     1.3    79.7    -      -       -      +
    149D  VAL*     1.3    66.7    +      -       -      +
    294D  VAL*     3.7     4.3    -      -       -      +
    295D  LEU*     2.8    36.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 149 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72D  ILE*     4.1    23.8    -      -       +      -
     75D  ALA*     5.4     0.4    -      -       +      -
     76D  ILE*     3.7    25.6    -      -       +      -
     86D  VAL*     3.4    24.5    -      -       +      -
     88D  GLU      3.2     6.3    +      -       -      +
     89D  ALA*     3.3    12.5    -      -       +      +
     90D  TYR*     3.0    24.7    +      -       -      +
     91D  MET*     5.2     2.0    -      -       -      -
    113D  LEU*     5.0     0.4    -      -       +      -
    148D  MET*     1.3    79.4    -      -       -      +
    150D  ALA*     1.3    66.5    +      -       -      +
    292D  ALA*     3.9    24.7    -      -       +      -
    293D  LEU      3.3    10.8    -      -       -      +
    294D  VAL*     4.3     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 150 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90D  TYR*     3.2     7.6    -      -       +      +
     91D  MET*     4.3     3.4    -      -       -      -
    132D  ALA      3.8    10.3    -      -       -      +
    133D  ILE*     3.7    32.1    -      -       +      -
    136D  ALA*     3.8    13.5    -      -       +      -
    148D  MET      4.2     0.2    -      -       -      -
    149D  VAL*     1.3    76.0    -      -       -      +
    151D  GLY*     1.3    59.8    +      -       -      +
    292D  ALA*     3.6     1.1    -      -       -      -
    293D  LEU*     2.8    36.0    +      -       -      +
    295D  LEU*     3.9    10.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 151 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90D  TYR      3.2     6.7    +      -       -      -
     91D  MET*     3.5     8.8    -      -       -      -
     92D  GLY*     2.8    25.5    +      -       -      -
    129D  GLY*     3.8     5.2    -      -       -      -
    132D  ALA*     3.4    12.6    -      -       -      +
    133D  ILE*     4.8     0.2    -      -       -      -
    150D  ALA*     1.3    75.5    -      -       -      +
    152D  GLY*     1.3    52.5    +      -       -      -
    291D  ALA      3.2    13.2    -      -       -      -
    392D  ALA*     3.8    19.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 152 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  MET*     3.6     6.1    -      -       -      +
     92D  GLY      3.2     8.3    -      -       -      -
    129D  GLY*     4.4     0.9    -      -       -      -
    151D  GLY*     1.3    74.4    -      -       -      -
    153D  MET*     1.3    61.9    +      -       -      +
    290D  ALA*     3.2     3.5    -      -       -      +
    291D  ALA      2.9    33.2    +      -       -      +
    388D  GLY      3.2    17.7    -      -       -      -
    389D  MET*     3.8    10.5    -      -       -      +
    392D  ALA*     3.9     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 153 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64D  ALA*     3.7    28.0    -      -       +      +
     65D  THR*     4.1     6.7    -      -       +      -
     68D  GLY*     4.1     4.5    -      -       -      -
     91D  MET*     4.0    17.9    -      -       +      -
     92D  GLY      2.8    17.0    +      -       -      +
     93D  ASN*     3.3    31.4    +      -       +      +
    103D  PRO*     3.6    43.5    -      -       +      +
    104D  THR*     3.8    11.0    -      -       -      +
    107D  ALA*     3.9    18.8    -      -       +      -
    152D  GLY*     1.3    74.6    -      -       -      +
    154D  GLU*     1.3    66.7    +      -       -      +
    289D  GLY      3.5     6.7    -      -       -      +
    290D  ALA*     3.8    11.4    -      -       +      -
    388D  GLY*     3.8     2.9    +      -       -      -
    389D  MET*     4.3     2.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 154 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64D  ALA*     3.9     8.1    -      -       -      +
     67D  LEU*     4.2     1.7    -      -       -      +
     93D  ASN*     3.1    11.4    +      -       -      -
     94D  VAL*     2.9    21.8    +      -       -      +
     95D  LEU*     3.0    35.2    +      -       +      +
     99D  GLU*     4.7     0.3    -      -       -      +
    153D  MET*     1.3    74.2    -      -       -      +
    155D  SER*     1.3    64.4    +      -       -      +
    156D  MET*     3.8    23.1    -      -       +      +
    159D  VAL*     5.2     0.9    -      -       +      +
    288D  ASP*     3.2     3.7    -      -       -      +
    289D  GLY      3.0    34.0    +      -       -      +
    386D  PRO*     3.8    22.7    -      -       +      +
    387D  ILE*     3.6    13.2    -      -       +      +
    388D  GLY*     2.8    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 155 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62D  LEU      3.5     7.2    +      -       -      -
     64D  ALA*     3.4    34.0    -      -       -      +
     67D  LEU*     4.7     1.6    -      -       -      -
     99D  GLU*     5.1     1.9    +      -       -      +
    154D  GLU*     1.3    75.3    +      -       -      +
    156D  MET*     1.3    63.7    +      -       -      +
    158D  ASN*     2.9    40.9    +      -       -      -
    159D  VAL*     3.4    15.0    +      -       -      +
    288D  ASP*     3.4    15.7    +      -       -      -
----------------------------------------------------------
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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