Contacts of the strand formed by residues 277 - 280 (chain B) in PDB entry 1JEQ


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 277 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318A  ARG*     3.6     3.1    -      -       -      -
    319A  SER*     2.6    53.4    +      -       -      -
    320A  GLN*     5.3     1.4    -      -       -      -
    275B  THR*     4.1    10.9    +      -       -      +
    276B  TRP*     1.3    74.2    -      -       -      +
    278B  VAL*     1.3    71.7    +      -       -      +
    279B  VAL*     3.4     7.7    +      -       +      -
    286B  LYS*     3.6    40.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 278 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302A  THR*     5.7     2.5    -      -       +      -
    316A  THR*     3.7    24.7    -      -       +      +
    317A  LYS      3.9     3.6    -      -       -      -
    318A  ARG*     3.6    35.0    -      -       -      +
    276B  TRP      3.8     4.7    +      -       -      +
    277B  THR*     1.3    78.9    -      -       -      +
    279B  VAL*     1.3    67.4    +      -       -      +
    286B  LYS*     4.1    10.1    -      -       -      +
    289B  ILE*     4.1    21.3    -      -       +      +
    291B  LYS*     6.5     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 279 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316A  THR*     3.1    27.9    -      -       -      -
    317A  LYS*     3.1    29.8    +      -       +      +
    318A  ARG      4.4     0.9    -      -       -      -
    319A  SER*     3.8    28.9    -      -       -      +
    328A  ILE*     4.5     4.7    -      -       +      -
    277B  THR*     3.9     9.0    -      -       +      +
    278B  VAL*     1.3    79.5    -      -       -      +
    280B  ASP*     1.3    63.3    +      -       -      +
    284B  LEU*     3.6    31.4    -      -       +      +
    285B  LYS      3.3    17.3    -      -       -      +
    286B  LYS*     4.1     2.2    -      -       +      +
    289B  ILE*     4.0     6.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 280 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304A  ASN*     3.4    22.8    +      -       -      +
    311A  LEU*     4.9     4.0    -      -       -      +
    315A  ASP      3.9     9.3    -      -       -      +
    317A  LYS      4.5     0.4    -      -       -      -
    279B  VAL*     1.3    74.5    -      -       -      +
    281B  ALA*     1.3    57.3    +      -       -      +
    282B  LYS*     2.5    47.2    +      -       -      +
    283B  THR*     3.0    29.9    +      -       -      +
    284B  LEU*     2.8    24.7    +      -       -      +
    285B  LYS      3.2     6.9    +      -       -      +
    288B  ASP*     4.9     0.9    -      -       +      -
    289B  ILE*     3.6    19.5    -      -       +      +
----------------------------------------------------------
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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