Contacts of the helix formed by residues 621 - 640 (chain 1) in PDB entry 6AH0


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 ASP 621 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6191  ASN      3.1    12.3    +      -       -      +
    6201  MET*     1.3    73.5    -      -       -      +
    6221  GLU*     1.3    67.3    +      -       -      +
    6231  TYR      3.1     4.4    +      -       -      +
    6241  VAL*     3.5     6.1    +      -       -      +
    6251  ARG*     3.5    11.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 622 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6201  MET      3.2     5.5    +      -       -      -
    6211  ASP*     1.3    73.4    -      -       -      +
    6231  TYR*     1.3    66.9    +      -       -      +
    6251  ARG*     3.1     3.3    +      -       -      +
    6261  ASN*     2.9    18.2    +      -       -      -
    156G    U      5.5     8.5    -      -       -      -
    157G    U      6.1     4.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 623 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6211  ASP*     3.1     1.8    -      -       -      +
    6221  GLU*     1.3    79.8    -      -       -      +
    6241  VAL*     1.3    62.6    +      -       -      +
    6261  ASN*     2.8    10.1    +      -       -      +
    6271  THR*     3.0    11.8    +      -       -      -
    156G    U      6.4     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 624 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6161  ASP*     4.7     7.4    -      -       -      +
    6211  ASP*     3.5     7.8    +      -       -      +
    6221  GLU      3.3     0.4    -      -       -      -
    6231  TYR*     1.3    73.5    -      -       -      +
    6251  ARG*     1.3    64.7    +      -       -      +
    6271  THR*     4.8     1.3    -      -       -      +
    6281  THR*     2.8    18.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 625 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6161  ASP      4.3    14.7    +      -       -      -
    6171  ILE*     5.0     7.0    -      -       -      +
    6191  ASN      5.6     0.4    -      -       -      -
    6211  ASP      3.5     8.7    +      -       -      -
    6221  GLU*     3.1     7.1    +      -       -      +
    6241  VAL*     1.3    73.9    -      -       -      +
    6261  ASN*     1.3    54.9    +      -       -      +
    6281  THR*     2.5    27.0    +      -       -      +
    6291  ALA      2.8    11.3    +      -       -      -
    6631  THR*     6.2     5.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 626 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6221  GLU      2.9     9.6    +      -       -      -
    6231  TYR*     2.8    12.0    +      -       -      +
    6251  ARG*     1.3    69.8    -      -       -      +
    6271  THR*     1.3    67.0    +      -       -      +
    6291  ALA*     3.1     8.8    +      -       -      -
    6301  ARG      3.2     7.3    +      -       -      -
    156G    U      6.1     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 627 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5791  GLU*     5.5    13.0    -      -       -      +
    6231  TYR      3.0    11.3    +      -       -      -
    6241  VAL*     4.2     1.1    -      -       -      +
    6261  ASN*     1.3    73.9    -      -       -      +
    6281  THR*     1.3    54.5    +      -       -      +
    6301  ARG*     2.5    26.9    +      -       -      +
    6311  ALA*     2.9     9.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 628 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6161  ASP      6.4     1.1    -      -       -      -
    6241  VAL      2.8    14.5    +      -       -      -
    6251  ARG*     2.5    17.2    +      -       -      +
    6271  THR*     1.3    63.3    -      -       -      +
    6291  ALA*     1.3    68.2    +      -       -      +
    6311  ALA*     3.3     4.2    +      -       -      +
    6321  PHE*     3.1    13.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 629 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6251  ARG      2.8    10.9    +      -       -      -
    6261  ASN      3.1     4.7    +      -       -      -
    6281  THR*     1.3    74.1    -      -       -      +
    6301  ARG*     1.3    55.4    +      -       -      +
    6321  PHE*     2.4    32.0    +      -       -      +
    6331  ALA      2.9     7.4    +      -       -      -
    6631  THR*     6.0     1.8    -      -       -      +
    6661  LYS      5.7     0.7    -      -       -      -
    6671  ILE*     4.8    20.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 630 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6261  ASN      3.2     7.3    +      -       -      -
    6271  THR*     2.5    14.9    +      -       -      +
    6291  ALA*     1.3    68.2    -      -       -      +
    6311  ALA*     1.3    64.4    +      -       -      +
    6331  ALA*     3.1     5.2    +      -       -      +
    6341  VAL*     3.0    15.1    +      -       -      -
    6701  GLN*     5.9     5.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 631 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6271  THR      2.9     9.4    +      -       -      -
    6281  THR*     3.5     5.4    -      -       -      +
    6291  ALA      2.6     4.6    +      -       -      -
    6301  ARG*     1.3    72.5    -      -       -      +
    6321  PHE*     1.3    52.9    +      -       -      +
    6341  VAL*     2.5    28.9    +      -       -      +
    6351  VAL*     3.0    10.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 632 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6281  THR      3.1     7.4    +      -       -      -
    6291  ALA*     2.4    15.7    +      -       -      +
    6311  ALA*     1.3    67.9    -      -       -      +
    6331  ALA*     1.3    65.0    +      -       -      +
    6351  VAL*     4.4     3.6    -      -       -      +
    6361  ALA*     3.0    17.7    +      -       -      -
    6671  ILE*     6.3     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 633 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6291  ALA      2.9     8.7    +      -       -      -
    6301  ARG*     3.1     6.9    +      -       -      +
    6311  ALA      2.7     5.7    +      -       -      -
    6321  PHE*     1.3    78.4    -      -       -      +
    6341  VAL*     1.3    60.8    +      -       -      +
    6361  ALA*     3.0     1.4    +      -       -      -
    6371  SER*     3.0    16.1    +      -       -      -
    6671  ILE*     5.4     4.6    +      -       -      +
    6701  GLN      4.8     4.7    -      -       -      -
    6711  ILE*     4.5    25.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 634 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5941  ARG*     6.1     2.5    -      -       -      +
    5971  ILE      6.0     0.9    -      -       -      -
    5981  SER*     5.4    10.8    -      -       -      +
    6301  ARG      3.0     8.1    +      -       -      -
    6311  ALA*     2.5    14.0    +      -       -      +
    6331  ALA*     1.3    69.5    -      -       -      +
    6351  VAL*     1.3    53.7    +      -       -      +
    6371  SER*     2.6    25.8    +      -       -      +
    6381  ALA*     2.9     8.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 635 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5971  ILE      5.4     7.4    +      -       -      -
    5981  SER*     5.7     1.6    -      -       -      +
    6011  ALA*     5.5     9.6    -      -       -      +
    6311  ALA      3.0    11.0    +      -       -      -
    6321  PHE*     4.1     2.9    -      -       -      +
    6341  VAL*     1.3    74.1    -      -       -      +
    6361  ALA*     1.3    56.1    +      -       -      +
    6381  ALA*     3.2     3.1    +      -       -      +
    6391  LEU*     2.9    25.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 636 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6321  PHE      3.0    13.0    +      -       -      -
    6331  ALA      3.4     4.5    -      -       -      -
    6341  VAL      2.7     2.0    +      -       -      -
    6351  VAL*     1.3    75.9    -      -       -      +
    6371  SER*     1.3    63.5    +      -       -      +
    6381  ALA      3.0     1.3    -      -       -      -
    6391  LEU      4.4     0.4    -      -       -      +
    6401  GLY*     2.8    36.3    +      -       -      -
    6411  ILE*     4.1     2.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 637 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6331  ALA      3.0     8.4    +      -       -      -
    6341  VAL*     2.6    14.3    +      -       -      +
    6361  ALA*     1.3    74.1    -      -       -      +
    6381  ALA*     1.3    61.3    +      -       -      +
    6401  GLY*     4.2     2.3    +      -       -      -
    6751  MET*     6.2     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 638 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    5981  SER*     5.6     8.5    -      -       -      +
    6021  LYS*     5.7     9.6    -      -       -      +
    6341  VAL      2.9    10.8    +      -       -      -
    6351  VAL*     3.2     4.7    +      -       -      +
    6371  SER*     1.3    81.3    -      -       -      +
    6391  LEU*     1.3    57.1    +      -       -      +
    6401  GLY      3.3     3.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 639 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6021  LYS*     6.2     0.4    -      -       -      +
    6351  VAL      2.9    15.8    +      -       -      -
    6361  ALA      3.8     0.2    -      -       -      -
    6381  ALA*     1.3    71.4    -      -       -      +
    6401  GLY*     1.3    67.1    +      -       -      +
    6431  SER*     4.5    10.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 640 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6361  ALA*     2.8    22.2    +      -       -      +
    6371  SER      4.2     2.2    +      -       -      -
    6381  ALA      3.3     4.4    +      -       -      -
    6391  LEU*     1.3    84.5    -      -       -      +
    6411  ILE*     1.3    69.9    +      -       -      +
    6421  PRO      3.4     1.6    -      -       -      -
    6431  SER      3.8     0.6    +      -       -      -
    6441  LEU*     3.7     7.1    +      -       -      -
----------------------------------------------------------
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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