Contacts of the strand formed by residues 1037 - 1042 (chain A) in PDB entry 4UI2


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 VAL1037 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1023A  ILE      3.5     1.4    -      -       -      +
   1024A  TYR*     3.2     8.3    -      -       -      +
   1025A  TYR*     2.9    82.0    +      -       +      +
   1026A  SER*     5.9     0.2    -      -       -      -
   1035A  ASP      5.5     0.9    -      -       -      +
   1036A  TRP*     1.3    71.9    -      -       -      +
   1038A  ILE*     1.3    71.0    +      -       -      +
   1039A  GLU*     5.2     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1038 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1022A  ILE*     3.9    18.8    -      -       +      -
   1023A  ILE      3.6     2.9    -      -       -      -
   1024A  TYR*     3.5    27.1    -      -       +      -
   1033A  ILE      4.6     3.8    -      -       -      +
   1034A  HIS*     4.0    16.4    -      -       -      +
   1036A  TRP      3.1    24.5    -      -       -      +
   1037A  VAL*     1.3    81.2    -      -       -      +
   1039A  GLU*     1.3    63.5    +      -       -      +
   1040A  PRO*     3.9    14.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1039 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1022A  ILE*     3.6     2.8    -      -       -      -
   1023A  ILE*     2.8    49.5    +      -       +      +
   1025A  TYR*     4.2    24.5    +      -       +      -
   1037A  VAL*     5.2     1.7    -      -       -      +
   1038A  ILE*     1.3    74.3    -      -       -      +
   1040A  PRO*     1.3    75.5    -      -       +      +
   1041A  VAL*     3.7     4.0    -      -       +      +
   1048A  HIS*     3.1    33.2    +      -       +      +
   1049A  GLN      4.2     4.5    -      -       -      +
   1050A  ILE*     4.3    12.5    -      -       +      +
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Residues in contact with PRO1040 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1021A  TYR      3.8     5.8    -      -       -      +
   1022A  ILE*     4.1    14.8    -      -       +      -
   1038A  ILE*     3.9    15.2    -      -       +      +
   1039A  GLU*     1.3    93.9    -      -       +      +
   1041A  VAL*     1.3    65.6    +      -       -      +
   1048A  HIS*     4.9     2.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1041 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1008A  TRP*     4.0    26.7    -      -       +      -
   1019A  THR      4.8     0.2    -      -       -      +
   1020A  GLY*     3.3     5.0    -      -       -      -
   1021A  TYR*     3.0    36.5    +      -       +      +
   1023A  ILE*     3.6    28.9    -      -       +      -
   1039A  GLU      3.7     5.4    -      -       -      +
   1040A  PRO*     1.3    81.9    -      -       -      +
   1042A  VAL*     1.3    76.6    +      -       +      +
   1045A  ARG*     4.5     5.4    -      -       +      +
   1048A  HIS*     4.0    25.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1042 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1019A  THR      4.8     2.0    -      -       -      -
   1020A  GLY*     4.4     0.7    -      -       -      -
   1021A  TYR*     3.7     6.6    -      -       -      -
   1041A  VAL*     1.3    93.3    -      -       +      +
   1043A  GLY*     1.3    63.1    +      -       -      +
   1044A  ASN*     3.4    27.3    +      -       -      +
   1045A  ARG*     3.7    30.7    +      -       +      -
----------------------------------------------------------
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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