Contacts of the strand formed by residues 531 - 539 (chain D) in PDB entry 6IWQ


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 ASN 531 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481D  TYR      4.3     0.2    +      -       -      -
    482D  ALA*     2.9    37.1    +      -       -      +
    485D  PRO*     3.0    26.1    -      -       -      +
    488D  GLN*     5.7     0.2    +      -       -      -
    529D  PRO      4.6     1.0    -      -       -      +
    530D  LYS*     1.3    83.0    -      -       -      +
    532D  VAL*     1.3    63.6    +      -       -      +
    533D  ASP*     4.3     9.6    -      -       -      +
    534D  TRP*     4.8     4.7    -      -       +      -
    572D  ARG*     3.7    21.1    +      -       -      +
    573D  ILE      3.5    13.9    -      -       -      +
    574D  ASN*     4.3     5.0    -      -       -      +
    575D  GLU*     4.6     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 532 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531D  ASN*     1.3    75.5    -      -       -      +
    533D  ASP*     1.3    65.0    +      -       +      +
    573D  ILE*     2.8    24.5    +      -       +      -
    574D  ASN      3.8    18.8    -      -       -      +
    575D  GLU*     3.9    18.8    -      -       +      -
    610D  TYR*     5.1    14.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 533 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531D  ASN*     3.7     3.1    -      -       -      +
    532D  VAL*     1.3    81.4    -      -       +      +
    534D  TRP*     1.3    80.0    +      -       -      +
    572D  ARG*     3.4     1.0    -      -       -      +
    573D  ILE*     2.7    32.7    +      -       +      +
    610D  TYR*     3.7    15.4    -      -       +      -
    612D  LYS*     2.5    43.8    -      -       -      +
    651D  MET*     3.9    21.9    -      -       -      +
    653D  ASN*     3.5    12.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 534 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485D  PRO*     3.1    49.3    -      -       +      +
    486D  GLU*     3.7    28.3    -      -       +      -
    488D  GLN*     4.0    15.6    +      -       +      -
    531D  ASN*     4.8     7.6    -      -       +      +
    533D  ASP*     1.3    85.5    +      -       -      +
    535D  GLY*     1.3    62.8    +      -       -      +
    570D  LEU*     4.0    12.8    -      -       +      -
    571D  PHE      3.3    12.1    -      -       -      +
    572D  ARG*     3.8     4.5    -      -       +      -
    651D  MET*     3.5     8.3    -      -       -      -
    652D  ASN      3.7     2.3    +      -       -      -
    653D  ASN*     2.7    64.0    +      -       +      -
    654D  ILE      3.4    20.4    -      -       -      -
    655D  HIS*     3.9    21.1    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 535 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    534D  TRP*     1.3    91.2    -      -       -      +
    536D  GLU*     1.3    66.4    +      -       -      -
    537D  ILE      3.8     0.9    +      -       -      -
    570D  LEU*     3.4    11.3    -      -       -      +
    571D  PHE*     2.8    33.7    +      -       -      +
    651D  MET*     3.4     4.0    -      -       -      +
    652D  ASN      3.0    10.8    -      -       -      -
    653D  ASN*     4.1     0.7    -      -       -      -
    654D  ILE      4.5     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 536 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535D  GLY*     1.3    74.6    -      -       -      -
    537D  ILE*     1.3    62.4    +      -       -      +
    538D  ARG*     2.8    47.3    +      -       +      -
    545D  CYS*     3.8    14.2    -      -       +      -
    562D  CYS*     4.2     1.2    -      -       -      +
    564D  ARG*     3.7    18.9    +      -       -      +
    569D  GLN*     3.2    20.3    -      -       +      +
    650D  GLU      3.7     0.2    -      -       -      +
    651D  MET*     3.1     9.4    -      -       -      +
    652D  ASN*     2.8    60.2    +      -       -      +
    654D  ILE*     4.1    18.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 537 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535D  GLY      3.8     0.2    +      -       -      -
    536D  GLU*     1.3    75.8    -      -       -      +
    538D  ARG*     1.3    57.8    +      -       -      +
    545D  CYS*     3.5     3.3    -      -       -      +
    546D  ILE*     3.1    49.8    +      -       +      -
    569D  GLN      4.2     3.2    +      -       -      -
    571D  PHE*     3.7    37.5    -      -       +      -
    579D  LEU*     3.8    24.5    -      -       +      -
    617D  PHE*     3.6    32.1    -      -       +      -
    626D  LEU*     5.0     0.7    -      -       +      -
    649D  TRP*     3.8    20.3    -      -       +      -
    650D  GLU      3.6     4.7    -      -       -      +
    651D  MET*     3.8    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 538 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    536D  GLU*     2.8    39.6    +      -       -      +
    537D  ILE*     1.3    73.2    -      -       -      +
    539D  GLY*     1.3    67.1    +      -       -      +
    542D  THR      3.3    30.0    +      -       -      +
    543D  ALA*     3.8    14.6    -      -       -      +
    544D  TYR      3.7     4.0    -      -       -      -
    545D  CYS*     4.2     2.0    -      -       -      +
    562D  CYS*     3.5    29.1    -      -       -      +
    564D  ARG*     3.2    42.6    -      -       -      +
    649D  TRP*     3.3     9.6    -      -       -      -
    650D  GLU*     3.1    51.9    +      -       +      +
    652D  ASN*     4.1     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 539 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    538D  ARG*     1.3    76.4    -      -       -      +
    540D  PHE*     1.3    61.8    +      -       -      -
    541D  GLU      3.1     1.2    +      -       -      -
    542D  THR*     2.8    43.4    +      -       -      +
    544D  TYR      2.9    16.0    +      -       -      -
    628D  ARG*     3.4    22.9    -      -       -      -
    649D  TRP*     4.0     4.1    -      -       -      -
    650D  GLU*     4.8     0.2    -      -       -      -
----------------------------------------------------------
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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