Contacts of the strand formed by residues 149 - 153 (chain A) in PDB entry 1D1T


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 TYR 149 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  THR*     5.7     1.3    +      -       +      +
      7A  ILE*     3.9    36.3    -      -       +      -
      9A  CYS*     3.8    14.0    -      -       +      -
     28A  VAL*     3.8    18.6    -      -       +      +
     37A  ARG*     4.3     7.9    -      -       +      -
     38A  ILE      3.2    17.9    -      -       -      -
     39A  LYS*     3.6    42.3    -      -       +      +
     40A  ILE*     4.9     0.9    -      -       -      +
     74A  GLU*     3.8    24.5    -      -       +      +
    130A  PHE*     3.6     7.6    -      -       -      -
    147A  THR*     2.7    29.9    +      -       -      +
    148A  GLU*     1.3    97.0    -      -       +      +
    150A  THR*     1.3    59.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  VAL*     4.6     0.2    -      -       -      +
     36A  VAL      3.7     0.5    -      -       -      +
     37A  ARG*     3.2     4.6    -      -       -      +
     38A  ILE*     2.8    42.4    +      -       +      +
     40A  ILE*     4.2    19.3    -      -       +      -
     91A  PRO*     5.4     1.3    -      -       +      -
    130A  PHE*     3.0    22.8    -      -       -      -
    143A  THR      2.8    23.1    +      -       -      +
    144A  SER      2.9    21.4    +      -       -      +
    145A  THR*     4.8     3.1    -      -       +      -
    147A  THR*     3.9     1.8    -      -       -      -
    149A  TYR*     1.3    77.5    -      -       -      +
    151A  VAL*     1.3    65.6    +      -       -      +
    152A  VAL*     4.2    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  VAL*     3.5    15.5    -      -       +      -
     29A  ALA      3.5    23.6    -      -       -      +
     31A  PRO*     3.9    12.3    -      -       +      -
     35A  GLU*     3.3    36.3    -      -       +      +
     36A  VAL      3.3    13.5    -      -       -      +
     37A  ARG*     4.0     7.2    -      -       -      -
    123A  LEU*     3.4    19.8    -      -       -      +
    129A  ARG*     3.8    19.7    -      -       +      -
    130A  PHE*     4.2     3.2    -      -       +      -
    139A  HIS*     3.6     9.4    +      -       -      -
    143A  THR      4.7     0.2    -      -       -      +
    150A  THR*     1.3    82.7    +      -       -      +
    152A  VAL*     1.3    62.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  GLU*     3.4     5.0    -      -       -      +
     36A  VAL      2.9    29.4    +      -       -      +
     38A  ILE*     3.6    19.5    -      -       +      -
     91A  PRO*     4.1    15.7    -      -       +      -
    123A  LEU*     4.2     6.5    -      -       -      -
    142A  ASN      3.5    22.4    -      -       -      +
    143A  THR*     4.0    17.7    -      -       -      +
    150A  THR*     4.2     7.9    -      -       +      -
    151A  VAL*     1.3    77.7    -      -       -      +
    153A  ASP*     1.3    62.0    +      -       -      +
    156A  SER*     3.7     9.2    -      -       -      +
    157A  VAL*     3.3    28.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  THR      5.1     1.4    -      -       -      +
     34A  LYS      3.9     5.4    -      -       -      +
     35A  GLU*     3.8    17.4    -      -       -      +
    113A  ARG*     4.0     5.8    +      -       -      +
    123A  LEU*     3.5    17.8    -      -       -      +
    124A  ALA*     3.0    43.4    +      -       -      +
    125A  ASP      5.0     0.7    +      -       -      -
    142A  ASN*     4.8     6.3    +      -       -      +
    152A  VAL*     1.3    76.5    -      -       -      +
    154A  GLU*     1.3    61.0    +      -       -      +
    155A  SER*     3.0    17.3    -      -       -      +
    156A  SER*     2.8    26.2    +      -       -      +
    157A  VAL*     3.1    11.7    -      -       -      +
----------------------------------------------------------
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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