Contacts of the strand formed by residues 320 - 333 (chain A) in PDB entry 1AF6


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 320 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316A  TRP*     3.2    38.2    +      -       +      +
    317A  THR*     3.1    30.7    +      -       +      +
    319A  ILE*     1.3    80.3    -      -       +      +
    321A  SER*     1.3    66.2    +      -       -      +
    349A  GLN*     3.8    21.1    -      -       -      +
    350A  GLN      3.3     8.7    -      -       -      +
    351A  TRP*     3.7    35.0    -      -       +      +
     94C  TRP*     6.0     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 321 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  MET*     3.1    32.6    -      -       -      +
    314A  TYR      3.2    16.2    -      -       -      -
    315A  LYS*     4.1     2.5    -      -       -      -
    316A  TRP*     4.0     4.7    -      -       -      -
    320A  MET*     1.3    77.5    -      -       -      +
    322A  THR*     1.3    62.1    +      -       -      +
    323A  VAL*     3.8     3.0    -      -       -      +
    349A  GLN*     3.3     9.2    -      -       -      -
    350A  GLN*     2.8    40.7    +      -       -      +
    352A  GLN*     2.9    20.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 322 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312A  PRO      4.2     0.5    -      -       -      +
    313A  MET*     3.5     1.9    -      -       -      -
    314A  TYR*     2.8    39.8    +      -       +      +
    316A  TRP*     2.8    28.0    +      -       +      -
    321A  SER*     1.3    71.7    -      -       -      +
    323A  VAL*     1.3    64.5    +      -       -      +
    324A  MET*     5.8     0.7    -      -       +      -
    347A  LEU*     4.0    22.7    -      -       +      -
    348A  ALA      3.4    10.5    -      -       -      +
    349A  GLN*     2.6    22.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 323 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LEU*     4.0    18.1    -      -       +      +
    311A  ARG*     3.8    25.4    -      -       +      +
    312A  PRO      3.7    11.7    -      -       -      +
    313A  MET*     3.9    14.4    -      -       +      -
    321A  SER*     3.8    17.3    -      -       -      +
    322A  THR*     1.3    80.5    -      -       -      +
    324A  MET*     1.3    63.8    +      -       -      +
    346A  THR      4.0     0.2    -      -       -      +
    347A  LEU*     3.6     2.9    -      -       -      +
    348A  ALA*     2.7    47.1    +      -       +      +
    350A  GLN*     4.0    28.0    -      -       +      +
    357A  ILE*     5.3     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LEU*     4.6     0.4    -      -       -      -
    311A  ARG*     3.2    10.7    -      -       -      +
    312A  PRO*     3.0    44.4    +      -       +      +
    322A  THR*     5.8     0.7    -      -       +      -
    323A  VAL*     1.3    77.8    -      -       -      +
    325A  GLU*     1.3    64.5    +      -       -      +
    326A  ILE*     4.0    30.5    -      -       +      -
    345A  ILE*     5.2     9.2    -      -       +      -
    346A  THR      3.1    10.8    -      -       -      +
    347A  LEU*     3.9    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  TYR*     3.3    21.5    -      -       +      +
     33A  ARG      4.3     0.2    -      -       -      -
     34A  LEU*     3.0    27.5    +      -       +      +
    114A  MET*     3.6    19.9    -      -       +      +
    310A  ILE      3.4    10.3    -      -       -      +
    311A  ARG*     2.9    37.7    +      -       -      -
    324A  MET*     1.3    76.2    -      -       -      +
    326A  ILE*     1.3    67.7    +      -       -      +
    327A  GLY      4.2     0.4    -      -       -      -
    344A  LYS*     2.6    33.0    +      -       -      +
    345A  ILE*     3.4     3.8    -      -       -      +
    346A  THR*     2.8    37.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  TYR*     4.6     0.7    -      -       -      -
    308A  VAL      4.8     0.2    -      -       -      -
    309A  GLY*     3.0     4.5    -      -       -      -
    310A  ILE*     2.9    56.3    +      -       +      +
    324A  MET*     4.0    28.3    -      -       +      -
    325A  GLU*     1.3    80.5    -      -       -      +
    327A  GLY*     1.3    64.3    +      -       -      +
    328A  TYR*     6.3     0.7    -      -       +      -
    343A  TYR*     5.8     4.0    -      -       +      -
    344A  LYS      3.4     8.7    -      -       -      +
    345A  ILE*     4.4    19.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  TYR*     3.7    32.3    -      -       -      +
    308A  VAL      3.6     5.8    -      -       -      -
    325A  GLU      4.2     0.2    -      -       -      -
    326A  ILE*     1.3    78.2    -      -       -      +
    328A  TYR*     1.3    61.4    +      -       -      -
    329A  ASP*     5.2     0.6    -      -       -      +
    342A  GLN      3.8     0.5    -      -       -      +
    343A  TYR*     3.2     5.2    -      -       -      +
    344A  LYS*     2.8    40.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  TYR*     3.8     1.4    -      -       -      -
    306A  TRP*     5.0     6.5    -      -       +      -
    307A  THR*     3.3     9.1    -      -       -      +
    308A  VAL*     2.8    53.9    +      -       +      +
    326A  ILE*     6.3     0.4    -      -       +      -
    327A  GLY*     1.3    75.0    -      -       -      +
    329A  ASP*     1.3    73.0    +      -       -      +
    330A  ASN*     3.2    38.5    +      -       +      +
    341A  ASN*     4.0    15.2    -      -       +      +
    342A  GLN      3.3    16.2    -      -       -      -
    343A  TYR*     4.2    14.1    -      +       +      -
----------------------------------------------------------
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Residues in contact with ASP 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  THR*     3.2    34.2    +      -       +      +
     28A  ALA*     4.2     4.5    -      -       -      +
     30A  SER*     4.6     8.0    +      -       -      +
     31A  LYS*     5.1     2.3    -      -       -      -
     32A  TYR*     3.9    16.2    -      -       -      -
    305A  TRP*     3.2    17.9    +      -       -      +
    306A  TRP      3.6     3.4    -      -       -      -
    307A  THR*     2.7    27.6    -      -       -      +
    327A  GLY      5.2     0.5    -      -       -      +
    328A  TYR*     1.3    81.4    -      -       -      +
    330A  ASN*     1.3    62.1    +      -       -      +
    340A  ASN      4.4     0.4    -      -       -      -
    341A  ASN*     3.1     7.1    -      -       -      +
    342A  GLN*     2.9    42.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304A  LYS      3.8     1.4    -      -       -      +
    305A  TRP*     3.4     2.5    -      -       -      -
    306A  TRP*     2.9    53.3    +      -       +      +
    328A  TYR*     3.2    30.8    +      -       +      +
    329A  ASP*     1.3    75.5    -      -       -      +
    331A  VAL*     1.3    66.9    +      -       -      +
    332A  GLU*     4.5     1.6    +      -       -      +
    339A  LYS*     3.7    35.7    -      -       -      +
    340A  ASN      3.3     3.4    +      -       -      -
    341A  ASN*     3.7    14.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  THR*     3.6    25.8    -      -       +      -
     26A  THR      3.9     7.4    -      -       -      +
     27A  GLY*     3.8    18.8    -      -       -      +
     28A  ALA*     3.6    16.4    -      -       +      +
    303A  THR*     4.0    13.7    -      -       -      -
    304A  LYS      3.5     7.9    -      -       -      +
    305A  TRP*     3.7    20.2    -      -       +      -
    330A  ASN*     1.3    81.2    +      -       -      +
    332A  GLU*     1.3    63.1    +      -       -      +
    339A  LYS*     3.2     1.8    -      -       -      -
    340A  ASN*     2.7    39.7    +      -       +      +
    376A  TRP*     3.2    19.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 332 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303A  THR*     3.4     5.0    -      -       -      -
    304A  LYS*     2.8    65.8    +      -       +      +
    330A  ASN*     4.2     1.5    +      -       -      +
    331A  VAL*     1.3    76.0    -      -       -      +
    333A  SER*     1.3    73.2    +      -       -      +
    334A  GLN*     5.6     1.4    -      -       -      -
    337A  GLY*     4.0    11.2    -      -       -      +
    338A  ASP      3.2    13.9    -      -       -      +
    339A  LYS*     2.6    40.6    +      -       +      +
    376A  TRP*     4.2     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 333 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301A  ASN      5.9     0.2    -      -       -      -
    302A  GLY      4.1     5.2    +      -       -      -
    332A  GLU*     1.3    76.1    -      -       -      +
    334A  GLN*     1.3    62.0    +      -       -      +
    335A  ARG      3.1    13.9    +      -       -      -
    336A  THR*     3.3    22.7    +      -       -      -
    337A  GLY*     2.9    23.4    +      -       -      -
    338A  ASP      2.9     8.4    +      -       -      -
    376A  TRP*     3.6    32.3    -      -       -      +
    393A  ALA*     3.2    21.8    -      -       -      +
----------------------------------------------------------
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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