Contacts of the strand formed by residues 43 - 50 (chain H) in PDB entry 3IU3


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 LEU 43 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35H  ILE*     3.8    18.4    -      -       +      -
     36H  LYS      3.3     1.8    -      -       -      -
     37H  GLN*     3.4    39.9    -      -       +      +
     42H  GLY*     1.3    72.7    -      -       -      -
     44H  GLU*     1.3    62.7    +      -       -      +
     93H  TYR*     5.1     2.7    -      -       +      -
     35L  TYR*     5.6     0.9    -      -       +      -
     43L  PRO*     3.8    32.1    -      -       +      -
     86L  TYR*     3.7    38.7    -      -       +      -
     95L  PHE*     3.2    50.7    -      -       +      +
     96L  GLY      4.6     2.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 44 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35H  ILE*     3.3     6.7    -      -       -      +
     36H  LYS*     2.7    75.8    +      -       +      +
     38H  ARG*     4.8    12.0    +      -       -      +
     42H  GLY      5.1     3.8    -      -       -      +
     43H  LEU*     1.3    77.0    -      -       -      +
     45H  TRP*     1.3    66.6    +      -       -      +
     59H  ASN*     5.4     2.2    -      -       -      +
     61H  LYS*     5.0     9.4    +      -       -      +
     62H  PHE*     3.4    24.2    -      -       +      -
     95L  PHE*     4.3     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 45 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33H  HIS*     2.8    37.3    -      +       +      -
     34H  TRP      4.0     9.0    -      -       -      -
     35H  ILE*     4.6     7.2    -      -       +      -
     44H  GLU*     1.3    73.2    -      -       -      +
     46H  ILE*     1.3    61.9    +      -       -      +
     47H  GLY*     3.4    29.5    +      -       -      -
     48H  ALA*     4.0     6.7    -      -       +      -
     57H  SER*     3.9    24.2    -      -       -      -
     58H  TYR      3.8     4.5    -      -       -      -
     59H  ASN*     2.9    68.0    +      -       +      +
     62H  PHE*     4.1     5.0    -      -       -      -
    102H  PHE*     5.0     1.8    -      +       -      -
     39I  SER*     6.2     3.1    -      -       -      -
     42I  LEU*     6.2     1.1    -      -       +      -
     92L  SER      3.5    19.7    -      -       -      -
     93L  TYR*     3.2    43.9    -      +       +      +
     94L  THR*     4.6     4.2    -      -       -      +
     95L  PHE*     4.0    13.9    -      +       +      +
----------------------------------------------------------
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Residues in contact with ILE 46 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34H  TRP*     2.8    27.5    +      -       +      +
     35H  ILE      3.9     0.7    -      -       -      +
     36H  LYS*     3.8    22.4    -      -       +      +
     45H  TRP*     1.3    76.2    -      -       -      +
     47H  GLY*     1.3    60.2    +      -       -      +
     58H  TYR*     3.7     4.9    -      -       +      +
     59H  ASN*     2.9    28.6    +      -       -      +
     62H  PHE*     4.1    26.0    -      -       +      +
     66H  ALA*     3.9    28.0    -      -       +      -
     68H  LEU*     4.6     7.9    -      -       +      -
     79H  MET*     3.9    17.0    -      -       +      -
     81H  LEU*     5.8     0.7    -      -       +      -
     92H  TYR*     3.6    35.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 47 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33H  HIS*     3.4     3.8    -      -       -      -
     34H  TRP*     3.0    24.0    +      -       -      +
     45H  TRP*     3.4    18.5    +      -       -      -
     46H  ILE*     1.3    84.0    -      -       -      +
     48H  ALA*     1.3    62.5    +      -       -      +
     57H  SER      3.1    14.4    -      -       -      -
     58H  TYR*     4.2     2.7    -      -       -      -
     68H  LEU*     4.0    10.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 48 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31H  TRP*     3.8    20.6    -      -       +      -
     32H  MET      3.3     9.2    -      -       -      +
     33H  HIS*     3.7    26.9    -      -       +      +
     45H  TRP*     4.2     5.8    -      -       +      -
     47H  GLY*     1.3    75.5    -      -       -      +
     49H  ILE*     1.3    62.3    +      -       -      +
     55H  ASP      3.8     0.3    -      -       -      +
     56H  THR*     3.3     8.0    -      -       -      -
     57H  SER*     2.9    32.7    +      -       -      +
     68H  LEU*     3.7     6.6    -      -       -      +
     42I  LEU*     5.5     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 49 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31H  TRP*     3.7     4.2    -      -       -      -
     32H  MET*     3.0    51.5    +      -       +      +
     34H  TRP*     4.6     4.5    -      -       -      +
     48H  ALA*     1.3    76.9    -      -       -      +
     50H  TYR*     1.3    71.0    +      -       -      +
     51H  PRO*     3.5     8.7    -      -       +      +
     54H  SER*     4.1    12.8    -      -       -      +
     55H  ASP      3.5     4.3    -      -       -      +
     56H  THR*     3.8    13.2    -      -       +      -
     68H  LEU*     3.3    40.6    -      -       +      +
     69H  THR*     3.6    23.1    -      -       -      +
     70H  ALA*     3.9    12.1    -      -       +      +
     77H  ALA*     4.8     9.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 50 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28H  THR      3.2    20.9    +      -       -      -
     29H  ARG*     3.5    33.5    +      -       -      -
     30H  TYR      3.8     7.0    -      -       -      -
     31H  TRP*     3.4    46.9    -      +       +      -
     49H  ILE*     1.3    74.6    -      -       -      +
     51H  PRO*     1.3    61.9    -      -       -      +
     52H  GLY*     3.6    13.7    -      -       -      -
     53H  ASN*     2.9    54.1    -      -       -      +
     54H  SER*     3.5     1.7    -      -       -      -
     55H  ASP*     3.0    16.3    +      -       +      +
     27I  ASN*     3.6    23.5    +      -       -      -
     29I  GLU*     4.9     0.7    -      -       -      -
----------------------------------------------------------
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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