Contacts of the strand formed by residues 318 - 327 (chain A) in PDB entry 1UCU


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 318 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310A  SER*     5.0     7.7    -      -       -      -
    311A  TYR      3.1     8.5    -      -       -      -
    312A  THR*     3.0    27.8    -      -       +      +
    316A  GLY      3.7    11.7    -      -       -      +
    317A  LYS*     1.3    82.3    -      -       -      +
    319A  ILE*     1.3    67.9    +      -       -      +
    320A  ASP*     5.1     3.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 319 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178A  TYR*     5.2     8.7    -      -       +      +
    310A  SER*     3.4     4.0    -      -       -      -
    311A  TYR*     3.0    51.3    +      -       +      +
    317A  LYS*     4.3    22.2    -      -       +      +
    318A  THR*     1.3    79.6    -      -       -      +
    320A  ASP*     1.3    71.5    +      -       -      +
    369A  LYS*     4.6    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 320 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  LYS*     2.9    36.0    +      -       +      -
    309A  MET      3.6     3.8    -      -       -      -
    310A  SER*     4.1     4.4    +      -       -      +
    311A  TYR*     4.7     0.2    -      -       -      -
    318A  THR*     5.1     4.0    +      -       -      +
    319A  ILE*     1.3    89.1    -      -       -      +
    321A  GLY*     1.3    65.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 321 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  LYS*     4.6     5.2    -      -       -      +
    309A  MET*     2.7    18.6    +      -       -      +
    311A  TYR*     3.6    23.8    -      -       -      -
    319A  ILE*     3.9     0.4    +      -       -      -
    320A  ASP*     1.3    80.9    -      -       -      +
    322A  GLY*     1.3    64.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 322 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  LYS*     3.7     4.7    -      -       -      -
    309A  MET*     3.0    31.9    +      -       -      +
    311A  TYR*     5.0     1.0    +      -       -      -
    321A  GLY*     1.3    74.5    -      -       -      -
    323A  LEU*     1.3    66.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 323 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  ALA*     3.8    23.1    -      -       +      -
    187A  VAL*     4.6     7.9    -      -       +      -
    306A  VAL*     3.8    14.6    -      -       +      -
    307A  VAL      3.4    15.5    -      -       -      +
    308A  LYS*     4.7     7.0    -      -       +      -
    309A  MET*     5.0     0.5    -      -       -      +
    322A  GLY*     1.3    75.8    -      -       -      -
    324A  ALA*     1.3    62.4    +      -       -      +
    333A  SER*     4.0     3.3    -      -       -      -
    334A  ALA*     3.1    38.8    +      -       +      +
    335A  THR*     5.1     0.7    -      -       -      -
    336A  GLN*     3.9    39.9    -      -       +      +
    342A  ILE*     5.8     3.4    -      -       +      -
    363A  LEU*     5.5     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305A  SER      3.5     0.2    -      -       -      +
    306A  VAL*     3.3     7.5    -      -       -      +
    307A  VAL*     2.8    36.9    +      -       +      -
    309A  MET*     3.6    33.2    -      -       +      -
    323A  LEU*     1.3    76.8    -      -       -      +
    325A  VAL*     1.3    64.3    +      -       -      +
    326A  LYS      3.7     0.7    -      -       -      -
    331A  TYR*     4.4     6.5    -      -       +      -
    332A  TYR      3.4    15.7    -      -       -      +
    334A  ALA*     4.0     2.7    -      -       -      +
    363A  LEU*     4.3     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    288A  LEU*     4.9     3.6    -      -       +      -
    291A  ALA*     4.5     5.6    -      -       +      -
    295A  LEU*     3.7    17.3    -      -       +      -
    304A  ALA*     3.7    29.6    -      -       +      -
    305A  SER      3.3     7.0    -      -       -      +
    306A  VAL*     5.1     0.7    -      -       +      -
    324A  ALA*     1.3    71.3    -      -       -      +
    326A  LYS*     1.3    58.0    +      -       -      +
    327A  VAL*     4.0     1.1    -      -       +      -
    332A  TYR*     2.9    42.1    +      -       +      +
    334A  ALA*     3.7    11.0    -      -       +      -
    342A  ILE*     3.4    33.0    -      -       +      -
    344A  ILE*     3.9    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  ASP*     2.9    36.3    +      -       -      +
    303A  THR      3.5     2.4    -      -       -      +
    304A  ALA*     3.3     2.8    -      -       -      -
    305A  SER*     2.8    44.0    +      -       -      +
    307A  VAL*     4.1    16.6    -      -       +      -
    324A  ALA      3.7     2.0    -      -       -      -
    325A  VAL*     1.3    72.0    -      -       -      +
    327A  VAL*     1.3    66.6    +      -       -      +
    328A  GLY      3.8    19.3    -      -       -      +
    329A  ASP*     5.1     5.6    -      -       -      +
    330A  ASP      3.6    11.4    -      -       -      +
    331A  TYR*     3.8    20.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    295A  LEU*     3.4    30.5    -      -       +      -
    300A  VAL*     3.2    27.0    -      -       +      +
    302A  GLY*     3.8    31.0    -      -       -      +
    303A  THR      3.8     4.3    -      -       -      +
    304A  ALA*     4.2     2.0    -      -       +      -
    325A  VAL*     3.9     3.8    -      -       +      +
    326A  LYS*     1.3    79.7    -      -       -      +
    328A  GLY*     1.3    65.9    +      -       -      +
    329A  ASP      3.2     0.2    +      -       -      -
    330A  ASP*     3.0    27.4    +      -       -      +
    332A  TYR*     3.6    26.2    -      -       +      -
----------------------------------------------------------
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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