Contacts of the strand formed by residues 425 - 433 (chain A) in PDB entry 5IXM


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 MET 425 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    417A  GLU*     4.1     6.7    -      -       -      +
    418A  TYR      3.4    13.9    -      -       -      +
    419A  ARG*     4.4    10.3    -      -       +      +
    423A  ASP      5.5     0.4    -      -       -      -
    424A  ARG*     1.3    75.5    -      -       -      +
    426A  ILE*     1.3    78.2    +      -       -      +
    427A  GLN*     3.7     8.7    -      -       +      +
    460A  THR*     3.1    42.8    -      -       +      +
    461A  ALA*     3.2     8.5    -      -       -      +
    462A  SER*     2.9    39.6    +      -       -      +
    463A  TRP*     3.7     4.2    -      -       -      -
    545A  LEU*     4.9     9.0    -      -       -      -
    552A  TYR*     3.3    45.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 426 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  MET*     5.0    13.2    -      -       +      +
    417A  GLU*     3.4     3.8    -      -       -      +
    418A  TYR*     2.8    46.9    +      -       +      +
    425A  MET*     1.3    81.3    -      -       -      +
    427A  GLN*     1.3    68.6    +      -       -      +
    428A  LEU*     5.7     5.4    -      -       +      -
    459A  THR*     6.5     1.1    -      -       +      -
    460A  THR      3.5     7.9    -      -       -      +
    461A  ALA*     4.6     9.2    -      -       +      -
    463A  TRP*     3.6    31.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 427 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415A  ILE*     3.7    27.8    -      -       +      +
    416A  MET      3.4    11.7    -      -       -      +
    417A  GLU*     2.6    33.7    +      -       +      +
    425A  MET*     3.8    12.1    -      -       +      -
    426A  ILE*     1.3    81.1    -      -       -      +
    428A  LEU*     1.3    63.7    +      -       -      +
    429A  ASN*     5.0     4.7    -      -       +      +
    458A  GLY      3.7     0.9    -      -       -      +
    459A  THR*     3.2     7.3    -      -       -      -
    460A  THR*     2.9    41.5    +      -       -      +
    476A  TYR*     4.5    12.6    +      -       -      -
    552A  TYR*     3.4    24.3    -      -       -      -
    553A  GLN      3.5    14.2    +      -       -      +
    555A  ALA      3.9     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 428 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415A  ILE*     3.2     3.3    -      -       -      +
    416A  MET*     2.9    65.0    +      -       +      +
    426A  ILE*     5.7     4.9    -      -       +      -
    427A  GLN*     1.3    73.7    -      -       -      +
    429A  ASN*     1.3    64.6    +      -       -      +
    457A  VAL*     5.3     9.2    -      -       +      -
    458A  GLY      3.4     6.5    -      -       -      +
    459A  THR*     3.6    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 429 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414A  ALA      3.2    12.6    -      -       -      +
    415A  ILE*     3.7    19.5    -      -       +      +
    427A  GLN*     5.0     4.5    -      -       +      +
    428A  LEU*     1.3    80.2    -      -       -      +
    430A  TYR*     1.3    64.2    +      -       -      +
    431A  ARG*     3.8    24.6    -      -       +      +
    456A  GLN*     4.5     5.1    +      -       -      +
    457A  VAL*     3.5     7.1    -      -       -      +
    458A  GLY*     2.9    58.5    +      -       -      +
    476A  TYR*     3.5    23.1    +      -       -      -
     67B  VAL      5.4     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 430 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412A  GLY      5.2     0.2    -      -       -      -
    413A  ASN*     3.1     6.6    -      -       -      +
    414A  ALA*     2.9    39.2    +      -       +      +
    429A  ASN*     1.3    75.6    -      -       -      +
    431A  ARG*     1.3    69.6    +      -       -      +
    432A  TYR*     3.6    33.1    -      -       +      +
    455A  SER*     2.7    29.6    +      -       -      -
    456A  GLN      3.3    17.7    -      -       -      -
    457A  VAL*     3.6    22.4    -      -       +      -
    479A  THR*     4.9     1.8    -      -       +      -
    480A  LYS*     5.7     0.2    -      -       -      -
    604A  C8E      3.8    38.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 431 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    411A  LEU*     5.7     1.0    -      -       -      +
    412A  GLY      3.8     4.0    -      -       -      -
    413A  ASN*     3.8    32.7    +      -       +      +
    429A  ASN*     3.8    18.2    -      -       +      +
    430A  TYR*     1.3    83.7    -      -       -      +
    432A  TYR*     1.3    60.1    +      -       -      +
    454A  ILE*     3.5     9.8    -      -       +      +
    455A  SER*     3.2     6.2    +      -       -      -
    456A  GLN*     2.9    37.6    +      -       +      +
     67B  VAL*     3.7    38.8    -      -       -      +
     68B  SER*     4.4     1.8    -      -       -      -
     77B  GLU*     2.4    45.8    +      -       -      +
     79B  GLN*     5.2     4.9    +      -       -      -
    105B  THR*     3.3    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 432 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409A  LEU*     3.7    36.5    +      -       +      +
    410A  THR      4.1     6.5    -      -       -      -
    411A  LEU*     3.5     6.1    -      -       -      +
    412A  GLY      2.8    40.5    +      -       -      +
    430A  TYR*     3.6    30.0    -      -       +      +
    431A  ARG*     1.3    75.3    -      -       -      +
    433A  ALA*     1.3    67.3    +      -       -      +
    434A  SER*     3.4    35.8    +      -       -      -
    435A  PRO*     4.2     5.7    -      -       +      +
    453A  GLY*     6.1     0.2    -      -       -      -
    454A  ILE*     3.0    17.3    -      -       -      -
    455A  SER*     4.4     3.6    -      -       -      -
    480A  LYS*     5.0    13.5    -      -       -      -
    604A  C8E      3.8    29.4    +      -       -      -
     77B  GLU*     4.6     3.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 433 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410A  THR      3.3     7.4    -      -       -      +
    411A  LEU*     3.6     8.1    -      -       +      -
    432A  TYR*     1.3    81.9    -      -       -      +
    434A  SER*     1.3    65.6    +      -       -      +
    437A  TYR*     5.0     0.9    -      -       +      -
    438A  ILE*     4.4     2.2    -      -       +      -
    453A  GLY*     3.0     9.0    -      -       -      -
    454A  ILE*     2.9    42.1    +      -       +      +
     77B  GLU*     4.3     1.3    -      -       -      +
    107B  PHE*     3.5    32.3    -      -       +      -
----------------------------------------------------------
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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