Contacts of the helix formed by residues 514 - 530 (chain A) in PDB entry 1WSU


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 514 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512A  SER*     3.5    13.5    +      -       -      +
    513A  GLU*     1.3    80.5    -      -       +      +
    515A  GLN*     1.3    67.3    +      -       -      +
    516A  LYS      3.2     0.7    -      -       -      -
    517A  LYS*     3.4    11.7    +      -       -      +
    518A  LEU*     3.2    18.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 515 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511A  GLY*     4.0    19.6    +      -       -      -
    512A  SER*     3.8    21.1    -      -       -      +
    513A  GLU      3.9     0.4    -      -       -      +
    514A  THR*     1.3    84.6    +      -       -      +
    516A  LYS*     1.3    62.2    +      -       +      +
    518A  LEU*     3.1    33.5    +      -       -      +
    519A  LEU*     3.2    16.5    +      -       +      +
    553A  LEU*     4.0    25.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 516 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512A  SER      4.0    18.7    +      -       -      +
    513A  GLU*     2.9    40.1    +      -       -      +
    514A  THR      3.2     0.6    -      -       -      -
    515A  GLN*     1.3    79.9    -      -       +      +
    517A  LYS*     1.3    60.8    +      -       -      +
    519A  LEU*     3.4    24.7    +      -       +      +
    520A  LYS*     3.4    15.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 517 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    513A  GLU      3.5     9.8    +      -       -      +
    514A  THR*     3.4    13.8    +      -       -      +
    515A  GLN      3.2     0.6    -      -       -      -
    516A  LYS*     1.3    76.5    -      -       -      +
    518A  LEU*     1.3    61.1    +      -       -      +
    519A  LEU      3.2     0.2    -      -       -      -
    520A  LYS*     3.3     8.5    +      -       +      +
    521A  ASP*     2.8    66.4    +      -       -      +
    586B  ASN      5.2     6.3    +      -       -      -
    589B  SER*     5.7     2.2    -      -       -      +
    590B  THR*     4.0    28.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 518 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514A  THR      3.2    12.0    +      -       -      +
    515A  GLN*     3.1    38.9    +      -       -      +
    517A  LYS*     1.3    79.3    -      -       -      +
    519A  LEU*     1.3    54.2    +      -       -      +
    521A  ASP*     3.3     4.3    +      -       +      -
    522A  LEU*     2.9    41.1    +      -       +      +
    543A  PHE*     3.5    35.7    -      -       +      -
    545A  LEU*     4.6    12.1    -      -       +      -
    553A  LEU*     4.1    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 519 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    515A  GLN*     3.2    17.2    +      -       +      +
    516A  LYS*     3.6    19.1    -      -       +      +
    517A  LYS      3.2     0.4    -      -       -      -
    518A  LEU*     1.3    75.9    -      -       -      +
    520A  LYS*     1.3    60.4    +      -       +      +
    522A  LEU*     3.5     6.7    +      -       +      +
    523A  GLU*     3.0    30.0    +      -       -      +
    553A  LEU*     3.7    29.2    -      -       +      +
    556A  TYR*     3.6    41.3    -      -       +      +
    557A  LEU*     4.0    23.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516A  LYS      3.4    11.5    +      -       -      +
    517A  LYS*     3.3    14.6    +      -       +      +
    518A  LEU      3.2     0.2    -      -       -      -
    519A  LEU*     1.3    79.1    -      -       +      +
    521A  ASP*     1.3    59.7    +      -       -      +
    523A  GLU*     3.7    15.3    +      -       -      +
    524A  ASP*     2.6    39.4    +      -       -      +
    586B  ASN*     3.0    47.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  LYS*     2.8    58.0    +      -       -      +
    518A  LEU*     3.3     3.9    +      -       -      +
    520A  LYS*     1.3    79.8    -      -       -      +
    522A  LEU*     1.3    57.7    +      -       -      +
    524A  ASP*     3.7     9.8    +      -       -      +
    525A  LYS*     3.1    20.3    +      -       -      +
    543A  PHE*     3.5    29.0    -      -       +      -
    586B  ASN*     5.9     1.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  LEU*     2.9    31.9    +      -       +      +
    519A  LEU*     3.7     6.3    -      -       +      +
    520A  LYS      3.2     0.2    -      -       -      -
    521A  ASP*     1.3    75.6    -      -       -      +
    523A  GLU*     1.3    67.4    +      -       -      +
    525A  LYS*     3.0    18.2    +      -       +      +
    526A  TYR*     3.2    23.4    +      -       +      -
    539A  VAL*     3.5    32.3    -      -       +      -
    543A  PHE*     3.9    17.7    -      -       +      -
    545A  LEU*     4.9     1.6    -      -       +      -
    550A  LEU*     4.3     7.9    -      -       +      -
    553A  LEU*     4.0    39.9    -      -       +      -
    554A  LEU*     4.5     3.4    -      -       +      -
    557A  LEU*     4.0    15.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519A  LEU      3.0    18.9    +      -       -      +
    520A  LYS*     3.7    18.1    +      -       -      +
    522A  LEU*     1.3    76.9    -      -       -      +
    524A  ASP*     1.3    54.6    +      -       -      +
    526A  TYR*     2.9    11.1    +      -       -      +
    527A  ARG*     2.7    61.3    +      -       -      +
    557A  LEU*     4.5     7.1    -      -       +      +
    562A  VAL*     3.2    39.1    -      -       +      +
    563A  LEU*     5.2     0.7    -      -       -      -
    573A  HIS*     3.0    17.7    +      -       +      -
    586B  ASN*     5.7     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    520A  LYS      2.6    26.3    +      -       -      +
    521A  ASP*     3.9    10.1    -      -       -      +
    523A  GLU*     1.3    76.3    -      -       -      +
    525A  LYS*     1.3    65.1    +      -       -      +
    527A  ARG*     4.0    11.9    +      -       -      -
    528A  VAL*     2.9    34.9    +      -       +      +
    582B  GLU      4.5     0.7    -      -       -      +
    583B  VAL*     3.9    30.1    +      -       +      +
    586B  ASN*     2.9    32.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 525 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521A  ASP      3.1    11.2    +      -       -      +
    522A  LEU*     3.0    13.6    +      -       -      +
    524A  ASP*     1.3    76.3    -      -       -      +
    526A  TYR*     1.3    63.9    +      -       +      +
    528A  VAL*     4.2     2.0    -      -       -      +
    529A  SER*     3.0    43.0    +      -       -      +
    534A  PRO*     4.0    28.4    -      -       +      +
    538A  GLU*     5.8     2.2    -      -       -      +
    539A  VAL*     5.4     2.7    -      -       +      -
    542A  SER*     3.8    26.4    +      -       -      -
    543A  PHE*     3.7    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 526 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522A  LEU*     3.2    28.4    +      -       +      -
    523A  GLU      2.9     7.4    +      -       -      +
    525A  LYS*     1.3    82.3    -      -       +      +
    527A  ARG*     1.3    59.9    +      -       -      +
    529A  SER*     4.1     3.1    -      -       -      -
    530A  ARG*     2.9    28.2    +      -       -      +
    533A  PRO*     4.1     4.9    -      -       +      +
    534A  PRO*     3.9    27.5    +      -       +      -
    535A  SER      4.7     2.6    +      -       -      -
    536A  PHE*     5.2     0.9    +      -       -      -
    539A  VAL*     3.4    30.8    -      -       +      +
    554A  LEU*     4.0    21.6    -      -       +      +
    563A  LEU*     3.9    36.8    -      -       +      -
    569A  GLU      5.7     0.3    +      -       -      -
    571A  TYR*     3.2    50.4    -      -       +      +
    572A  TRP*     4.6     1.3    -      -       -      -
    573A  HIS*     4.0    12.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 527 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    523A  GLU*     2.7    47.2    +      -       -      +
    524A  ASP*     3.9    12.8    +      -       -      +
    526A  TYR*     1.3    76.0    -      -       -      +
    528A  VAL*     1.3    63.1    +      -       -      +
    530A  ARG*     3.4     6.2    +      -       -      +
    573A  HIS*     3.3    34.0    +      -       +      +
    575A  GLN*     4.3     7.1    -      -       -      +
    576A  ALA*     5.7     0.4    -      -       -      +
    530B  ARG*     3.2    22.0    +      -       -      -
    531B  TRP*     4.5     3.4    -      -       +      -
    579B  GLU*     2.6    62.5    +      -       -      +
    582B  GLU*     3.3    35.1    -      -       -      +
    583B  VAL*     3.8    18.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 528 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524A  ASP*     2.9    23.6    +      -       +      +
    525A  LYS*     4.2     2.0    -      -       -      +
    527A  ARG*     1.3    75.9    -      -       -      +
    529A  SER*     1.3    64.6    +      -       -      +
    530A  ARG*     3.6     0.5    -      -       -      +
    530B  ARG*     3.0    22.7    +      -       -      +
    531B  TRP*     4.1    15.3    -      -       +      -
    583B  VAL*     4.3    11.4    -      -       +      -
    601B  ALA      3.4    25.4    -      -       -      +
    602B  LEU      4.2    18.6    -      -       -      +
    603B  GLY*     4.8     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 529 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525A  LYS*     3.0    32.7    +      -       -      +
    526A  TYR      4.1     1.3    -      -       -      -
    528A  VAL*     1.3    78.1    -      -       -      +
    530A  ARG*     1.3    64.9    +      -       -      +
    531A  TRP      3.1     1.4    +      -       -      -
    532A  GLN*     3.0    34.7    +      -       -      +
    533A  PRO*     3.8     1.8    -      -       -      -
    534A  PRO*     3.6    26.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 530 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    526A  TYR      2.9    18.1    +      -       -      +
    527A  ARG      3.7     2.0    -      -       -      +
    528A  VAL      3.1     0.8    -      -       -      +
    529A  SER*     1.3    75.9    -      -       -      +
    531A  TRP*     1.3   110.1    +      -       +      +
    532A  GLN*     3.3     1.3    -      -       -      +
    533A  PRO*     3.5    15.2    -      -       -      +
    572A  TRP*     4.3     5.2    -      -       -      -
    573A  HIS      5.2     1.4    +      -       -      -
    576A  ALA*     3.7    25.1    -      -       +      +
    579A  GLU*     3.0    30.9    +      -       -      +
    527B  ARG      3.1    28.5    +      -       -      -
    528B  VAL      3.4    12.7    +      -       -      -
    530B  ARG*     3.1    60.7    -      -       -      +
    579B  GLU*     4.6     2.8    +      -       -      +
----------------------------------------------------------
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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