Contacts of the strand formed by residues 320 - 333 (chain C) 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 C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94B  TRP*     6.3     3.1    -      -       +      -
    316C  TRP*     3.2    32.7    +      -       +      +
    317C  THR*     3.1    36.2    +      -       +      +
    319C  ILE*     1.3    80.4    -      -       +      +
    321C  SER*     1.3    67.1    +      -       -      +
    349C  GLN*     3.8    21.3    -      -       -      +
    350C  GLN      3.4     9.0    -      -       -      +
    351C  TRP*     3.8    34.5    -      -       +      +
    352C  GLN*     4.7     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 321 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313C  MET*     3.1    30.7    -      -       -      +
    314C  TYR      3.2    16.4    -      -       -      -
    315C  LYS*     4.1     2.0    -      -       -      -
    316C  TRP*     3.9     5.2    -      -       -      -
    320C  MET*     1.3    78.2    -      -       -      +
    322C  THR*     1.3    62.8    +      -       -      +
    323C  VAL*     3.8     5.4    -      -       -      +
    349C  GLN*     3.4     8.1    -      -       -      -
    350C  GLN*     2.8    40.6    +      -       -      -
    352C  GLN*     2.9    20.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 322 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312C  PRO      4.2     0.5    -      -       -      +
    313C  MET*     3.5     2.4    -      -       -      +
    314C  TYR*     2.8    38.7    +      -       -      +
    316C  TRP*     2.8    28.8    +      -       +      -
    321C  SER*     1.3    70.7    -      -       -      +
    323C  VAL*     1.3    63.2    +      -       -      +
    324C  MET*     4.4     0.6    +      -       +      -
    347C  LEU*     4.0    22.4    -      -       +      -
    348C  ALA      3.4     9.2    -      -       -      +
    349C  GLN*     2.5    22.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 323 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  LEU*     4.0    17.9    -      -       +      +
    311C  ARG*     3.8    25.6    -      -       +      +
    312C  PRO      3.7    12.1    -      -       -      +
    313C  MET*     3.9    13.9    -      -       +      -
    321C  SER*     3.8    17.0    -      -       -      +
    322C  THR*     1.3    79.9    -      -       -      +
    324C  MET*     1.3    63.7    +      -       -      +
    347C  LEU*     3.6     3.3    -      -       -      +
    348C  ALA*     2.6    48.1    +      -       +      +
    350C  GLN*     4.0    28.0    -      -       +      +
    357C  ILE*     5.3     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 324 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  LEU*     4.6     0.7    -      -       -      -
    311C  ARG*     3.2    10.6    -      -       -      +
    312C  PRO*     3.1    45.3    +      -       +      +
    322C  THR*     5.8     0.9    -      -       +      -
    323C  VAL*     1.3    77.6    -      -       -      +
    325C  GLU*     1.3    65.6    +      -       -      +
    326C  ILE*     4.1    28.5    -      -       +      -
    345C  ILE*     5.2     9.2    -      -       +      -
    346C  THR      3.1    10.5    -      -       -      +
    347C  LEU*     3.9    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 325 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  TYR*     3.4    22.1    -      -       +      +
     33C  ARG      4.3     0.7    -      -       -      -
     34C  LEU*     3.0    29.1    +      -       +      +
    114C  MET*     3.7    18.4    -      -       +      +
    310C  ILE      3.5    10.5    -      -       -      +
    311C  ARG*     2.9    35.7    +      -       -      -
    324C  MET*     1.3    76.7    -      -       -      +
    326C  ILE*     1.3    66.2    +      -       -      +
    344C  LYS*     2.6    33.6    +      -       -      +
    345C  ILE*     3.4     3.1    -      -       -      -
    346C  THR*     2.8    41.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 326 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309C  GLY*     3.0     3.8    -      -       -      -
    310C  ILE*     2.9    56.2    +      -       +      +
    312C  PRO*     6.2     0.2    -      -       +      -
    324C  MET*     4.1    27.4    -      -       +      -
    325C  GLU*     1.3    82.6    -      -       -      +
    327C  GLY*     1.3    63.5    -      -       -      +
    328C  TYR*     6.3     0.9    -      -       +      -
    343C  TYR*     5.9     4.3    -      -       +      -
    344C  LYS      3.3     9.0    -      -       -      +
    345C  ILE*     4.4    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 327 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  TYR*     3.7    30.7    -      -       -      +
    308C  VAL      3.6     7.4    -      -       -      -
    325C  GLU      4.2     0.2    -      -       -      -
    326C  ILE*     1.3    78.4    -      -       -      +
    328C  TYR*     1.3    61.2    +      -       -      -
    329C  ASP*     5.2     0.7    -      -       -      +
    342C  GLN      3.8     0.5    -      -       -      +
    343C  TYR*     3.2     4.8    -      -       -      +
    344C  LYS*     2.7    40.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 328 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  TYR*     3.8     1.0    -      -       -      -
    306C  TRP*     5.0     6.3    -      -       +      -
    307C  THR*     3.3     9.5    -      -       -      +
    308C  VAL*     2.8    51.4    +      -       +      +
    326C  ILE*     6.3     0.7    -      -       +      -
    327C  GLY*     1.3    74.6    -      -       -      +
    329C  ASP*     1.3    73.2    -      -       -      +
    330C  ASN*     3.3    37.8    +      -       +      +
    341C  ASN*     4.0    15.8    -      -       +      +
    342C  GLN      3.3    15.5    -      -       -      -
    343C  TYR*     4.2    13.9    -      +       +      -
----------------------------------------------------------
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Residues in contact with ASP 329 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  GLN*     5.9     0.2    -      -       -      -
     25C  THR*     3.3    34.4    +      -       +      +
     28C  ALA*     4.2     3.4    -      -       -      +
     30C  SER*     4.6     7.1    +      -       -      +
     31C  LYS*     5.1     2.3    -      -       -      -
     32C  TYR*     4.0    14.8    +      -       -      -
    305C  TRP*     3.3    17.7    +      -       -      +
    306C  TRP      3.6     3.1    -      -       -      -
    307C  THR*     2.7    28.9    -      -       -      +
    327C  GLY      5.2     0.5    -      -       -      +
    328C  TYR*     1.3    81.7    -      -       -      +
    330C  ASN*     1.3    61.3    +      -       -      +
    340C  ASN      4.4     0.2    -      -       -      -
    341C  ASN*     3.1     7.4    -      -       -      +
    342C  GLN*     2.8    42.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 330 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304C  LYS      3.8     0.9    -      -       -      +
    305C  TRP*     3.5     2.3    -      -       -      -
    306C  TRP*     2.9    50.8    +      -       +      +
    328C  TYR*     3.3    30.6    +      -       +      +
    329C  ASP*     1.3    74.2    -      -       -      +
    331C  VAL*     1.3    69.0    +      -       -      +
    332C  GLU*     4.4     1.9    +      -       -      +
    339C  LYS*     3.7    35.7    -      -       -      +
    340C  ASN      3.3     3.9    +      -       -      -
    341C  ASN*     3.7    14.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 331 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25C  THR*     3.6    17.9    -      -       +      -
     26C  THR      3.9     7.2    -      -       -      +
     27C  GLY*     3.8    18.8    -      -       -      +
     28C  ALA*     3.6    23.3    -      -       +      +
    303C  THR*     4.0    14.8    -      -       -      -
    304C  LYS      3.5     8.5    -      -       -      +
    305C  TRP*     3.7    20.4    -      -       +      -
    329C  ASP*     5.1     0.2    -      -       +      -
    330C  ASN*     1.3    81.2    +      -       -      +
    332C  GLU*     1.3    62.6    +      -       -      +
    339C  LYS*     3.2     0.7    -      -       -      -
    340C  ASN*     2.7    40.7    +      -       +      +
    376C  TRP*     3.2    20.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 332 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303C  THR*     3.4     4.2    -      -       -      -
    304C  LYS*     2.8    65.6    +      -       +      +
    330C  ASN*     4.2     2.2    +      -       -      +
    331C  VAL*     1.3    76.3    -      -       -      +
    333C  SER*     1.3    75.8    +      -       -      +
    334C  GLN*     3.5     1.9    +      -       -      -
    337C  GLY*     3.9    11.1    -      -       -      +
    338C  ASP      3.2    12.3    -      -       -      +
    339C  LYS*     2.6    40.2    +      -       +      +
    376C  TRP*     4.2     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 333 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302C  GLY      4.1     5.0    +      -       -      -
    332C  GLU*     1.3    76.9    -      -       -      +
    334C  GLN*     1.3    62.5    +      -       -      +
    335C  ARG      3.0    13.9    +      -       -      -
    336C  THR*     3.3    21.7    +      -       -      -
    337C  GLY*     3.0    22.9    +      -       -      -
    338C  ASP      3.0     8.0    +      -       -      -
    376C  TRP*     3.5    33.9    -      -       -      +
    393C  ALA*     3.2    22.0    -      -       -      +
----------------------------------------------------------
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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