Contacts of the strand formed by residues 1974 - 1982 (chain A) in PDB entry 4UXL


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 GLU1974 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1946A  THR*     5.2     1.0    +      -       -      -
   1963A  THR*     2.7    43.1    +      -       -      +
   1964A  ALA      4.5     2.2    -      -       -      -
   1965A  VAL*     4.0    23.8    -      -       +      +
   1973A  GLY*     1.3    70.1    -      -       -      -
   1975A  ILE*     1.3    56.9    +      -       -      +
   1976A  LYS*     3.6     6.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1975 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1963A  THR*     3.6     0.2    -      -       -      -
   1964A  ALA      3.1    35.1    +      -       -      +
   1967A  ILE*     3.8    19.5    -      -       +      -
   1968A  LEU*     3.2    43.1    -      -       +      -
   1972A  SER*     3.2    34.8    -      -       -      +
   1973A  GLY      3.1     1.8    +      -       -      -
   1974A  GLU*     1.3    72.0    -      -       -      +
   1976A  LYS*     1.3    68.3    +      -       -      +
   1977A  VAL*     3.7     5.2    +      -       +      +
   2013A  LEU*     4.8     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1976 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1948A  ARG*     3.7    17.9    -      -       -      +
   1961A  GLU*     4.1    10.5    -      -       -      -
   1962A  GLY      3.4     8.7    -      -       -      +
   1963A  THR*     4.3     2.0    -      -       -      +
   1974A  GLU      4.7     5.6    -      -       -      +
   1975A  ILE*     1.3    80.6    -      -       -      +
   1977A  VAL*     1.3    64.3    +      -       -      +
   2013A  LEU*     5.5     0.7    -      -       -      +
   2027A  GLU*     5.4     0.7    -      -       -      -
   2028A  LEU*     3.9    25.1    +      -       +      +
   2030A  GLU*     3.6    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1977 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1945A  LEU*     4.0    23.3    -      -       +      -
   1961A  GLU*     3.5     8.3    -      -       -      +
   1962A  GLY      2.8    44.3    +      -       -      +
   1963A  THR      4.1     0.2    -      -       -      -
   1964A  ALA*     4.0    13.0    -      -       +      -
   1967A  ILE*     4.5     4.3    -      -       +      -
   1975A  ILE*     3.9    10.3    -      -       +      +
   1976A  LYS*     1.3    80.9    -      -       -      +
   1978A  ALA*     1.3    61.6    +      -       -      +
   1979A  VAL*     4.2     6.1    -      -       +      -
   2013A  LEU*     4.2    16.2    -      -       +      -
   2025A  ILE*     3.8    22.4    -      -       +      -
   2026A  LEU      3.6    10.8    -      -       -      +
   2028A  LEU*     3.8    10.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1978 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1951A  LEU*     4.5     3.6    -      -       +      -
   1959A  VAL*     4.7     2.5    -      -       +      -
   1960A  TYR      3.4     7.9    -      -       -      +
   1977A  VAL*     1.3    72.3    -      -       -      +
   1979A  VAL*     1.3    68.5    +      -       -      +
   2025A  ILE*     3.5     4.0    -      -       -      +
   2026A  LEU*     2.8    35.9    +      -       +      +
   2027A  GLU      4.3     0.2    -      -       -      +
   2028A  LEU*     3.9    13.4    -      -       +      +
   3230A  5P8      3.5    43.1    -      -       +      +
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Residues in contact with VAL1979 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1945A  LEU*     4.2    17.7    -      -       +      -
   1947A  LEU*     4.2    13.7    -      -       +      -
   1958A  GLU      3.7     1.4    -      -       -      +
   1959A  VAL*     3.2     9.1    -      -       -      -
   1960A  TYR*     2.7    41.7    +      -       +      +
   1962A  GLY      4.9     4.3    -      -       -      +
   1977A  VAL*     4.2     7.2    -      -       +      -
   1978A  ALA*     1.3    80.9    -      -       -      +
   1980A  LYS*     1.3    62.8    +      -       -      +
   1981A  THR*     3.9     5.4    +      -       +      +
   2023A  TYR*     3.6    33.4    -      -       +      -
   2024A  ILE      3.5     2.0    -      -       -      -
   2025A  ILE*     3.4    29.2    -      -       +      -
   2026A  LEU*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS1980 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1954A  GLY*     3.8    11.3    +      -       -      +
   1955A  ALA*     3.7    26.1    -      -       -      +
   1958A  GLU      3.9     2.2    -      -       -      +
   1959A  VAL*     4.5     8.5    -      -       +      +
   1978A  ALA      4.3     0.6    -      -       -      -
   1979A  VAL*     1.3    73.2    -      -       -      +
   1981A  THR*     1.3    63.9    +      -       -      +
   1994A  PHE*     3.6    17.4    -      -       +      -
   1997A  GLU*     3.1    32.3    -      -       -      +
   2001A  MET*     6.4     1.8    -      -       +      -
   2023A  TYR*     3.3     5.2    -      -       -      -
   2024A  ILE*     2.7    56.6    +      -       +      +
   2026A  LEU*     4.3    13.4    -      -       +      +
   2102A  ASP*     4.7    12.0    +      -       -      -
   3230A  5P8      4.2    23.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR1981 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1947A  LEU*     5.0     0.4    -      -       +      -
   1954A  GLY      5.0     0.2    -      -       -      +
   1955A  ALA*     5.7     0.7    -      -       -      +
   1957A  GLY*     3.5    18.7    +      -       -      -
   1958A  GLU*     2.8    29.2    +      -       -      +
   1960A  TYR*     3.9    22.7    -      -       +      -
   1979A  VAL*     4.1     5.2    -      -       +      +
   1980A  LYS*     1.3    79.2    -      -       -      +
   1982A  LEU*     1.3    61.1    +      -       -      +
   1983A  LYS*     2.9    22.6    +      -       -      -
   1994A  PHE*     3.8     9.0    -      -       -      -
   2021A  PRO*     4.7     4.9    -      -       +      -
   2022A  GLN      3.2     7.6    -      -       -      -
   2023A  TYR*     3.6    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1982 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1955A  ALA*     6.4     0.4    -      -       +      -
   1956A  PHE*     3.9    16.6    -      -       +      +
   1981A  THR*     1.3    73.9    -      -       -      +
   1983A  LYS*     1.3    88.2    +      -       -      +
   1986A  SER*     2.8    29.2    -      -       -      +
   1990A  GLU*     4.3    15.0    -      -       +      +
   1991A  LYS*     4.3    18.6    -      -       -      -
   1994A  PHE*     3.7    35.2    -      -       +      -
   2020A  GLU*     3.2    18.4    -      -       -      +
   2021A  PRO*     3.4    14.0    -      -       -      +
   2022A  GLN*     3.1    33.3    +      -       +      -
----------------------------------------------------------
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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