Contacts of the strand formed by residues 118 - 126 (chain B) in PDB entry 3DPR


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 HIS 118 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114B  ALA*     4.1    17.0    -      -       +      +
    115B  SER*     3.0    52.4    +      -       -      +
    117B  PHE*     1.3    80.0    -      -       +      +
    119B  GLN*     1.3    61.8    +      -       -      +
    194B  LEU*     4.6     9.9    -      -       +      -
    195B  ARG      4.7     6.2    +      -       -      -
    231B  LEU*     4.6     9.4    -      -       +      -
    232B  GLU      3.8     8.3    -      -       -      +
    233B  THR*     3.2    23.3    -      -       +      +
    235B  SER*     3.7    15.9    +      -       -      -
    237B  ILE*     3.6    22.9    +      -       -      +
    240B  ILE*     5.3     6.2    -      -       +      +
    122C  THR*     2.9    22.2    +      -       -      -
    123C  ALA      4.1     1.9    +      -       -      -
    203C  PRO*     5.6     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 119 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118B  HIS*     1.3    72.0    -      -       -      +
    120B  GLY*     1.3    58.5    +      -       -      +
    194B  LEU*     3.4    11.8    -      -       -      +
    195B  ARG      5.3     0.4    -      -       -      +
    230B  PRO      3.5     1.3    +      -       -      +
    231B  LEU*     3.5     4.0    -      -       -      +
    232B  GLU*     3.1    66.1    +      -       +      +
    120C  CYS      3.2    19.0    +      -       -      +
    121C  GLY*     3.5     7.5    -      -       -      +
    122C  THR*     3.3    23.2    +      -       -      +
    125C  THR*     5.1     1.2    +      -       -      +
    203C  PRO*     3.3    24.0    -      -       +      +
    205C  THR      3.0    30.1    +      -       -      +
    206C  ALA*     4.1     6.7    -      -       -      +
    207C  ARG*     4.4     7.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 120 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  TRP*     3.9     5.4    -      -       -      -
    119B  GLN*     1.3    78.7    -      -       -      +
    121B  THR*     1.4    64.5    +      -       -      -
    193B  ASN*     3.0    17.5    +      -       -      -
    194B  LEU*     3.3    25.8    -      -       -      +
    229B  CYS*     3.1    16.2    -      -       -      -
    230B  PRO      3.8     4.0    -      -       -      -
    120C  CYS*     3.6     6.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 121 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  TRP*     3.8     1.8    -      -       -      -
    120B  GLY*     1.4    76.6    +      -       -      -
    122B  LEU*     1.3    66.7    +      -       -      +
    191B  PHE*     4.3    10.3    -      -       +      -
    192B  ILE      3.3    12.3    -      -       -      +
    193B  ASN*     3.2    12.1    +      -       +      -
    227B  PRO*     3.4     5.2    -      -       -      +
    228B  ILE*     2.9    44.7    +      -       +      +
    229B  CYS*     2.7    20.5    +      -       -      +
    118C  MET*     3.9    25.8    -      -       +      -
    120C  CYS*     3.1    24.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 122 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  TRP*     3.7    36.6    -      -       +      -
     78B  TRP*     4.7     1.8    -      -       +      -
    110B  VAL*     6.1     1.8    -      -       +      -
    112B  CYS*     5.0     1.8    -      -       +      -
    121B  THR*     1.3    76.7    -      -       -      +
    123B  ILE*     1.3    62.9    +      -       -      +
    124B  VAL*     3.6     3.7    +      -       +      +
    191B  PHE*     3.2     9.7    -      -       -      -
    192B  ILE*     2.8    49.7    +      -       +      +
    225B  ILE*     3.8    22.2    -      -       +      -
    226B  ILE      3.3     1.6    -      -       -      -
    227B  PRO*     3.2    45.1    -      -       +      -
    242B  ILE*     4.0    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 123 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  LEU*     1.3    71.7    -      -       -      +
    124B  VAL*     1.3    68.8    +      -       -      +
    125B  ALA*     4.5    11.0    -      -       +      -
    181B  LEU*     3.9    25.6    -      -       +      -
    184B  ILE*     4.6    18.8    -      -       +      -
    185B  THR*     5.9     0.2    -      -       +      -
    189B  HIS*     5.0     5.2    -      -       +      -
    190B  GLN      3.8     4.0    -      -       -      +
    191B  PHE*     3.3    33.0    -      -       +      -
    224B  VAL*     3.1    15.7    -      -       +      +
    225B  ILE*     3.2    13.9    -      -       -      -
    226B  ILE*     3.0    21.0    +      -       +      +
    228B  ILE*     3.7    32.1    -      -       +      -
     52C  LEU*     5.3     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 124 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108B  ILE*     6.0     0.9    -      -       +      -
    110B  VAL*     3.8    30.5    -      -       +      -
    122B  LEU*     4.0     6.3    -      -       +      +
    123B  ILE*     1.3    76.5    -      -       -      +
    125B  ALA*     1.3    59.2    +      -       -      +
    189B  HIS*     3.0     4.1    -      -       -      +
    190B  GLN      2.7    46.7    +      -       -      +
    192B  ILE*     3.9    28.3    -      -       +      -
    200B  ALA*     4.3    10.3    -      -       +      -
    202B  ILE*     4.6     8.2    -      -       +      +
    223B  LEU*     3.7    19.7    -      -       +      -
    224B  VAL      3.7     0.7    -      -       -      -
    225B  ILE*     4.0    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 125 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123B  ILE*     4.5     5.2    -      -       +      -
    124B  VAL*     1.3    76.5    -      -       -      +
    126B  LEU*     1.3    59.5    +      -       -      +
    127B  ILE*     3.3    18.8    -      -       +      +
    184B  ILE*     4.1    21.8    -      -       +      -
    187B  PHE*     4.9     2.0    -      -       +      -
    188B  PRO      3.3     9.9    -      -       -      +
    189B  HIS*     4.0     9.4    -      -       +      -
    202B  ILE*     5.2     0.9    -      -       -      -
    223B  LEU*     3.2     4.2    -      -       -      +
    224B  VAL*     2.7    42.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 126 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  ALA*     5.8     0.2    -      -       +      -
     82B  LEU*     4.9     5.2    -      -       +      -
    106B  TYR*     5.8     0.4    -      -       +      -
    108B  ILE*     4.2    24.9    -      -       +      -
    125B  ALA*     1.3    71.5    -      -       -      +
    127B  ILE*     1.3    73.9    +      -       -      +
    128B  PRO*     3.8     0.7    -      -       -      +
    187B  PHE*     3.7     1.6    -      -       -      +
    188B  PRO*     2.9    38.7    +      -       +      +
    202B  ILE*     4.4    14.9    -      -       +      +
    204B  ALA*     3.9    20.9    -      -       +      -
    221B  TRP*     2.9    47.5    -      -       +      -
    222B  SER      3.4    23.3    -      -       -      +
    223B  LEU*     3.8    10.5    -      -       +      +
----------------------------------------------------------
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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