Contacts of the strand formed by residues 376 - 384 (chain A) in PDB entry 4XE4


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 SER 376 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    372A  TYR*     3.5     8.1    -      -       -      +
    373A  TRP*     2.5    73.9    +      -       -      -
    374A  GLY      3.3     0.7    -      -       -      +
    375A  HIS*     1.3    79.1    +      -       -      +
    377A  PHE*     1.3    61.7    +      -       -      +
      1B  NAG      5.8     1.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 377 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370A  ALA*     3.9     9.2    -      -       +      -
    371A  LEU      3.2    10.8    -      -       -      -
    372A  TYR*     3.2    43.1    -      +       +      -
    373A  TRP*     4.0     3.6    -      -       -      -
    376A  SER*     1.3    79.0    -      -       -      +
    378A  CYS*     1.3    83.9    +      -       -      +
    413A  ARG*     3.7    45.8    -      -       -      +
    486A  TRP*     3.7    27.4    -      +       -      -
    543A  ASP*     3.9    28.7    -      -       +      -
    544A  SER*     5.5     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 378 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370A  ALA*     3.6     1.0    -      -       -      -
    371A  LEU*     2.6    50.4    +      -       +      +
    373A  TRP*     3.8    11.8    -      -       +      -
    377A  PHE*     1.3    88.9    -      -       -      +
    379A  ALA*     1.3    61.0    +      -       -      +
    390A  THR*     4.5     0.4    -      -       +      -
    394A  CYS*     2.0    55.9    -      -       +      -
    544A  SER*     3.5    18.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 379 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368A  ILE*     4.6    10.5    -      -       +      -
    369A  ALA      3.4    10.5    -      -       -      +
    370A  ALA*     4.7     1.1    -      -       -      +
    371A  LEU*     5.1     2.1    -      -       -      +
    377A  PHE*     4.1     1.8    -      -       -      -
    378A  CYS*     1.3    75.3    -      -       -      +
    380A  GLY*     1.3    50.8    +      -       -      +
    390A  THR*     2.8    31.7    -      -       -      +
    486A  TRP*     4.7     2.7    -      -       +      -
    543A  ASP*     3.7    31.3    -      -       +      +
    544A  SER      2.9     6.1    +      -       -      -
    545A  GLY*     3.3     7.4    -      -       -      -
    546A  GLY*     3.6    22.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 380 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368A  ILE*     3.6     9.5    -      -       -      +
    369A  ALA*     2.9    31.1    +      -       -      -
    379A  ALA*     1.3    76.6    -      -       -      +
    381A  SER*     1.3    66.5    +      -       -      -
    388A  VAL*     4.1     9.0    -      -       -      -
    389A  LEU      3.5    11.4    -      -       -      -
    390A  THR*     4.1     3.8    -      -       -      -
    545A  GLY      3.7     7.5    +      -       -      -
    547A  PRO*     4.2     2.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 381 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    367A  TYR*     3.5     6.3    -      -       -      -
    380A  GLY*     1.3    75.5    +      -       -      -
    382A  LEU*     1.3    63.7    -      -       -      +
    383A  ILE*     3.4     4.7    +      -       -      +
    388A  VAL*     3.4     5.4    -      -       -      +
    389A  LEU      2.9    35.8    +      -       -      -
    466A  VAL*     4.4     8.1    -      -       -      -
    545A  GLY      4.7     0.7    +      -       -      -
    546A  GLY      4.7     0.5    -      -       -      -
    547A  PRO*     3.3    31.2    -      -       -      +
    561A  LEU*     3.8    25.3    -      -       -      +
    564A  ILE*     6.0     1.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 382 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366A  PRO      5.1     0.4    -      -       -      +
    367A  TYR*     2.8    22.3    +      -       -      +
    369A  ALA*     4.8     1.0    -      -       -      +
    380A  GLY      4.3     0.2    -      -       -      -
    381A  SER*     1.3    69.3    -      -       -      +
    383A  ILE*     1.3    58.6    +      -       -      +
    384A  ALA      3.2    23.6    -      -       -      +
    385A  PRO*     4.4     3.6    -      -       +      +
    387A  TRP      3.5     8.3    -      -       -      +
    388A  VAL*     3.8    16.9    -      -       +      +
    408A  LEU*     4.2    17.5    -      -       +      -
    448A  LEU*     4.0    15.0    -      -       +      -
    457A  ALA*     4.5     6.3    -      -       +      -
    459A  LEU*     5.6     1.1    -      -       +      -
    463A  VAL*     4.1    21.8    -      -       +      -
    464A  GLN      3.8     6.7    -      -       -      +
    465A  PRO*     3.2    27.7    -      -       +      +
    466A  VAL*     3.0    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 383 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381A  SER      3.7    11.2    -      -       -      +
    382A  LEU*     1.3    78.4    -      -       -      +
    384A  ALA*     1.3    65.3    +      -       +      +
    387A  TRP*     3.1    23.9    +      -       +      +
    388A  VAL      4.6     0.2    -      -       -      +
    389A  LEU*     4.2    14.1    -      -       +      -
    445A  LEU*     3.9    28.7    -      -       +      -
    465A  PRO*     3.5    12.1    -      -       -      +
    466A  VAL*     3.9    23.4    -      -       +      +
    468A  LEU*     3.9    29.5    -      -       +      +
    561A  LEU*     4.4     4.9    -      -       +      -
    590A  ILE*     4.3    16.4    -      -       +      -
    594A  THR*     4.3     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 384 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382A  LEU*     3.2    11.7    -      -       -      +
    383A  ILE*     1.3    81.7    -      -       +      +
    385A  PRO*     1.3    77.1    -      -       +      +
    386A  CYS      2.9     4.3    +      -       -      -
    387A  TRP*     3.1    38.9    -      -       +      +
    465A  PRO*     4.0     6.7    -      -       -      -
----------------------------------------------------------
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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