Contacts of the strand formed by residues 148 - 154 (chain B) in PDB entry 3QI6


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 THR 148 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103B  HIS*     2.6    35.3    +      -       -      +
    105B  VAL*     3.8    14.4    -      -       +      +
    144B  ILE*     3.5    11.9    -      -       +      +
    145B  ARG      2.7    33.4    +      -       -      +
    147B  THR*     1.3    76.6    +      -       -      +
    149B  ARG*     1.3    79.1    +      -       -      +
    150B  LEU      3.3    28.9    -      -       -      +
    151B  ILE*     4.7     0.7    -      -       +      -
    176B  SER      4.4     1.7    -      -       -      +
    178B  ALA*     3.7    15.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 149 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97B  MET*     3.9    20.5    -      -       -      +
     98B  LEU*     4.0     7.6    -      -       +      -
    102B  ASP*     3.6    30.8    +      -       -      +
    103B  HIS      3.2     3.8    +      -       -      -
    145B  ARG      5.5     0.2    +      -       -      -
    146B  PRO      2.9    26.9    +      -       -      -
    147B  THR*     3.1    11.3    +      -       -      +
    148B  THR*     1.3    94.8    +      -       -      +
    150B  LEU*     1.3    60.0    -      -       -      +
    176B  SER      3.7     8.9    +      -       -      -
    177B  SER*     2.9    27.3    +      -       -      +
    178B  ALA*     3.6     7.4    -      -       -      +
    179B  LYS*     3.0    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 150 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94B  LEU*     3.8    31.2    -      -       +      -
     97B  MET*     3.8    39.7    -      -       +      -
     98B  LEU*     4.0    22.2    -      -       +      -
    103B  HIS      3.7     2.8    +      -       -      -
    104B  VAL*     3.2    11.3    -      -       +      -
    105B  VAL      3.0    22.7    +      -       -      -
    148B  THR*     3.3     6.9    -      -       -      +
    149B  ARG*     1.3    79.8    -      -       -      +
    151B  ILE*     1.3    74.2    +      -       -      +
    152B  TRP*     3.8    15.5    -      -       +      -
    178B  ALA*     4.8     0.2    -      -       -      -
    179B  LYS*     3.5    20.4    -      -       +      +
    181B  LEU*     4.2    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 151 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  VAL*     3.5    30.3    -      -       +      +
    134B  LEU*     4.8     3.8    -      -       +      -
    140B  VAL*     4.5     7.2    -      -       +      -
    144B  ILE*     3.9    28.0    -      -       +      -
    148B  THR*     4.7     0.4    -      -       +      -
    150B  LEU*     1.3    79.2    -      -       -      +
    152B  TRP*     1.3    62.2    +      -       -      +
    153B  VAL*     3.9     8.9    +      -       +      -
    169B  ILE*     3.4    32.5    -      -       +      +
    172B  LEU      4.6     0.4    -      -       -      -
    173B  GLY*     4.0    26.2    -      -       -      +
    178B  ALA*     4.3    10.3    -      -       +      -
    179B  LYS      3.1     8.3    +      -       -      +
    180B  VAL*     3.6     7.3    -      -       +      +
    181B  LEU      3.1    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 152 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  ALA*     3.6    37.9    -      -       +      -
     93B  ALA*     4.2     4.5    -      -       +      -
     94B  LEU*     3.7    28.9    -      -       +      -
    104B  VAL*     4.0    10.0    -      -       +      +
    105B  VAL      2.8    15.9    +      -       -      +
    106B  ILE*     3.8     9.8    -      -       +      -
    107B  PRO*     3.2    37.1    -      -       +      +
    114B  THR*     3.5    35.3    +      -       +      +
    118B  ILE*     4.8     2.2    -      -       +      -
    134B  LEU*     4.2     4.3    -      -       -      +
    150B  LEU*     3.8    20.2    -      -       +      -
    151B  ILE*     1.3    70.3    -      -       -      +
    153B  VAL*     1.3    65.7    +      -       -      +
    154B  GLU*     4.7     5.3    -      -       +      +
    181B  LEU*     3.8    42.8    -      -       +      +
    183B  ASP*     4.5    14.1    -      -       +      +
    203B  LEU*     4.4     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 153 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134B  LEU*     3.6    16.6    -      -       +      -
    151B  ILE*     3.9     8.3    -      -       +      +
    152B  TRP*     1.3    77.4    -      -       -      +
    154B  GLU*     1.3    62.3    +      -       -      +
    155B  THR*     4.1    15.0    -      -       +      -
    164B  ALA*     3.9    17.3    -      -       +      -
    166B  ILE*     4.6     6.3    -      -       +      -
    169B  ILE*     3.8    37.7    -      -       +      -
    180B  VAL*     4.1     9.9    -      -       +      -
    181B  LEU      3.0    15.6    +      -       -      +
    182B  VAL*     3.3    14.5    -      -       +      +
    183B  ASP*     2.9    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 154 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107B  PRO*     4.1    10.3    -      -       +      +
    110B  ALA*     3.6    10.3    -      -       -      +
    111B  TYR*     2.6    45.2    +      -       -      +
    114B  THR*     4.3     4.5    +      -       -      -
    134B  LEU*     4.0    12.4    -      -       -      +
    152B  TRP*     4.7     5.8    +      -       -      +
    153B  VAL*     1.3    73.5    -      -       -      +
    155B  THR*     1.3    65.8    +      -       -      +
    156B  PRO      4.1     5.0    -      -       -      +
    157B  THR*     3.5    23.4    -      -       +      +
    158B  ASN      3.4    23.9    +      -       -      -
    162B  SER      4.7     0.3    -      -       -      +
    164B  ALA*     4.3     1.4    -      -       -      +
    183B  ASP*     3.8    27.6    -      -       +      +
    208B  LLP      3.9    13.9    -      -       +      +
----------------------------------------------------------
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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