Contacts of the helix formed by residues 516 - 528 (chain B) in PDB entry 1UPX


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 516 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  ASP*     3.8    14.4    -      -       -      -
    138B  ASP*     2.8    27.1    +      -       -      -
    141B  SER*     3.0    20.7    +      -       -      -
    514B  PHE      3.8     0.2    -      -       -      -
    515B  LEU*     1.3    73.7    -      -       -      +
    517B  PRO*     1.3    76.4    -      -       -      +
    519B  VAL*     3.1    18.8    +      -       -      +
    520B  ALA*     2.8    21.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 517 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  ASP*     6.0     2.2    -      -       +      -
    515B  LEU      4.5     0.9    -      -       -      +
    516B  SER*     1.3    89.2    -      -       -      +
    518B  ASN*     1.3    64.4    +      -       -      +
    520B  ALA*     3.6     5.2    +      -       +      +
    521B  LYS*     3.0    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 518 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  ASP*     2.7    35.5    +      -       -      +
    516B  SER*     3.3     1.8    +      -       -      -
    517B  PRO*     1.3    83.2    -      -       -      +
    519B  VAL*     1.3    58.6    +      -       -      +
    521B  LYS*     3.4    14.7    +      -       -      +
    522B  VAL*     3.1    31.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 519 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  ASP*     3.9    10.8    -      -       +      +
    141B  SER*     3.6    22.7    -      -       -      +
    142B  LEU*     3.7    42.6    -      -       +      -
    145B  LEU*     4.8     2.7    -      -       +      -
    188B  VAL*     5.6     1.8    -      -       +      -
    192B  VAL*     6.0     1.1    -      -       +      -
    515B  LEU*     4.1    18.4    -      -       +      -
    516B  SER*     3.1    21.7    +      -       -      +
    518B  ASN*     1.3    75.4    -      -       -      +
    520B  ALA*     1.3    65.7    +      -       -      +
    522B  VAL*     3.1    10.8    +      -       +      +
    523B  LEU*     3.0    29.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 520 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511B  LEU*     6.4     2.5    -      -       +      -
    515B  LEU*     4.2    21.9    -      -       +      +
    516B  SER      2.8    18.1    +      -       -      +
    517B  PRO*     3.8     5.4    -      -       +      +
    519B  VAL*     1.3    76.4    -      -       -      +
    521B  LYS*     1.3    63.3    +      -       -      +
    523B  LEU*     3.2     9.2    +      -       -      +
    524B  VAL*     3.0    30.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 521 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517B  PRO      3.0    18.8    +      -       -      +
    518B  ASN*     3.4    15.7    -      -       -      +
    519B  VAL      3.2     0.2    -      -       -      -
    520B  ALA*     1.3    78.3    -      -       -      +
    522B  VAL*     1.3    56.8    +      -       +      +
    524B  VAL*     3.3     8.1    +      -       +      +
    525B  GLU*     2.9    60.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 522 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188B  VAL*     5.9     5.2    -      -       +      -
    192B  VAL*     4.3    27.8    -      -       +      -
    518B  ASN*     3.1    20.0    +      -       +      +
    519B  VAL*     3.1    11.6    +      -       +      +
    521B  LYS*     1.3    76.4    -      -       +      +
    523B  LEU*     1.3    63.3    +      -       +      +
    525B  GLU*     3.2    14.5    +      -       -      +
    526B  GLN*     2.9    56.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 523 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  LEU*     4.7    11.7    -      -       +      -
    192B  VAL*     6.2     2.2    -      -       +      -
    195B  THR*     5.5     7.9    -      -       +      -
    196B  LEU*     6.2     0.4    -      -       +      -
    494B  LEU*     6.2     2.7    -      -       +      -
    495B  LEU*     6.0     1.6    -      -       +      -
    498B  LEU*     4.5    13.0    -      -       +      -
    515B  LEU*     3.8    38.4    -      -       +      -
    519B  VAL*     3.0    22.1    +      -       +      +
    520B  ALA*     3.2     7.2    +      -       -      +
    522B  VAL*     1.3    82.2    -      -       +      +
    524B  VAL*     1.3    57.9    +      -       -      +
    527B  PHE*     2.9    56.9    +      -       +      +
    528B  ASN      3.4     1.2    +      -       -      -
    529B  ILE*     3.9    23.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 524 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    520B  ALA*     3.0    23.7    +      -       +      +
    521B  LYS*     3.6     7.6    -      -       -      +
    523B  LEU*     1.3    75.2    -      -       -      +
    525B  GLU*     1.3    64.0    +      -       +      +
    528B  ASN*     2.8    44.7    +      -       -      +
    529B  ILE*     3.5    24.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 525 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521B  LYS*     2.9    55.5    +      -       +      +
    522B  VAL*     3.2    17.0    +      -       -      +
    524B  VAL*     1.3    82.4    -      -       +      +
    526B  GLN*     1.3    63.8    +      -       +      +
    528B  ASN      4.9     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 526 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192B  VAL*     4.2    11.8    -      -       -      +
    196B  LEU*     4.2    11.6    -      -       -      +
    503B  LYS*     3.4    21.5    +      -       -      +
    522B  VAL*     2.9    38.4    +      -       +      +
    525B  GLU*     1.3    82.5    -      -       +      +
    527B  PHE*     1.3    90.7    +      -       +      +
    528B  ASN      3.9     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 527 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192B  VAL*     6.3     1.1    -      -       +      -
    196B  LEU*     3.4    34.8    -      -       +      -
    498B  LEU*     3.7    50.0    -      -       +      +
    502B  VAL      4.5     1.5    -      -       -      +
    503B  LYS*     3.4    32.3    -      -       +      -
    504B  ASN      3.0    20.1    +      -       -      -
    505B  ILE      4.6     0.5    +      -       -      -
    522B  VAL*     6.0     0.2    -      -       +      -
    523B  LEU*     2.9    40.7    +      -       +      +
    526B  GLN*     1.3   110.9    -      -       +      +
    528B  ASN*     1.3    68.6    +      -       -      +
    529B  ILE*     3.2     5.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 528 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    503B  LYS*     5.3     0.9    -      -       +      -
    504B  ASN*     2.9    42.4    +      -       -      +
    506B  HIS*     5.8     0.9    -      -       -      -
    523B  LEU      3.4     0.2    +      -       -      -
    524B  VAL*     2.8    31.7    +      -       -      +
    525B  GLU      4.9     0.4    +      -       -      -
    526B  GLN      3.9     0.2    -      -       -      -
    527B  PHE*     1.3    79.1    -      -       -      +
    529B  ILE*     1.3    67.5    +      -       -      +
    530B  GLY*     3.6     1.0    +      -       -      -
----------------------------------------------------------
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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