Contacts of the helix formed by residues 510 - 523 (chain A) in PDB entry 1MH3


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 THR 510 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  GLN*     5.1    10.0    +      -       -      +
    504A  ALA*     4.0     0.2    -      -       -      -
    509A  ILE*     1.3    77.9    -      -       -      +
    511A  PRO*     1.3    74.0    -      -       +      +
    512A  LEU*     3.1    30.1    -      -       +      +
    513A  GLN*     3.0    31.9    +      -       +      +
    514A  VAL*     3.0    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 511 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    500A  LYS*     4.9     7.1    -      -       +      +
    501A  GLU*     5.0    15.0    -      -       +      +
    504A  ALA*     3.8    19.7    -      -       +      -
    505A  LYS*     6.1     2.5    -      -       -      +
    509A  ILE      4.0     3.8    -      -       -      +
    510A  THR*     1.3    89.7    -      -       +      +
    512A  LEU*     1.3    58.7    +      -       +      +
    514A  VAL*     3.4     5.2    +      -       +      +
    515A  ARG*     3.0    26.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 512 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    510A  THR*     3.1    13.5    -      -       +      +
    511A  PRO*     1.3    76.0    -      -       +      +
    513A  GLN*     1.3    61.8    +      -       -      +
    515A  ARG*     3.6    20.3    -      -       +      +
    516A  VAL*     2.9    43.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 513 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    476A  ALA*     3.0    37.1    +      -       -      +
    477A  ILE*     3.8     9.7    -      -       +      +
    509A  ILE*     2.7    38.7    -      -       +      +
    510A  THR*     3.0    31.1    +      -       +      +
    512A  LEU*     1.3    80.4    -      -       +      +
    514A  VAL*     1.3    61.8    +      -       -      +
    516A  VAL*     3.9     3.6    -      -       -      +
    517A  TRP*     2.9    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 514 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485A  LEU*     4.5     7.0    -      -       +      -
    495A  LEU*     4.5     0.4    -      -       +      -
    500A  LYS*     4.0    28.0    -      -       +      +
    503A  VAL*     4.1    15.0    -      -       +      -
    504A  ALA*     3.7    22.4    -      -       +      +
    509A  ILE*     3.5    22.4    -      -       +      +
    510A  THR      3.0    17.9    +      -       -      +
    511A  PRO      3.5     7.6    -      -       -      +
    512A  LEU      3.2     0.2    -      -       -      -
    513A  GLN*     1.3    77.0    -      -       -      +
    515A  ARG*     1.3    63.8    +      -       -      +
    517A  TRP*     3.3     4.6    +      -       -      +
    518A  PHE*     3.1    48.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 515 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    500A  LYS*     3.5    42.7    -      -       +      +
    511A  PRO      3.0    16.8    +      -       -      +
    512A  LEU*     3.3    21.3    +      -       -      +
    514A  VAL*     1.3    79.4    -      -       -      +
    516A  VAL*     1.3    64.4    +      -       +      +
    518A  PHE*     3.4     5.2    +      -       -      +
    519A  ILE*     3.1    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 516 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512A  LEU*     2.9    32.0    +      -       +      +
    513A  GLN*     4.2     3.6    -      -       -      +
    515A  ARG*     1.3    73.9    -      -       +      +
    517A  TRP*     1.3    60.9    +      -       -      +
    519A  ILE*     3.2    13.4    +      -       +      +
    520A  ASN*     2.8    49.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 517 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477A  ILE*     3.9    17.0    -      -       +      -
    482A  ARG*     4.9    14.5    -      -       +      +
    485A  LEU*     3.6    60.5    -      -       +      +
    486A  GLU*     3.7    26.5    -      -       +      -
    489A  PHE*     3.8    25.4    -      +       +      -
    513A  GLN      2.9    19.0    +      -       -      +
    514A  VAL*     3.5     4.3    -      -       -      +
    516A  VAL*     1.3    77.7    -      -       -      +
    518A  PHE*     1.3    83.4    +      +       -      +
    520A  ASN*     3.7     6.5    -      -       +      +
    521A  LYS*     2.8    52.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 518 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485A  LEU*     4.1     9.9    -      -       +      -
    488A  VAL*     3.9    16.4    -      -       +      -
    489A  PHE*     3.8    20.4    -      +       -      -
    492A  LYS      3.5    22.4    -      -       -      -
    493A  GLN      3.4    19.5    -      -       -      -
    494A  SER*     4.5     0.9    -      -       -      -
    495A  LEU*     3.4    36.3    -      -       +      +
    500A  LYS*     5.7     2.2    -      -       +      -
    503A  VAL*     5.2     0.7    -      -       +      -
    514A  VAL*     3.1    34.9    +      -       +      +
    515A  ARG*     3.7     9.0    -      -       -      +
    516A  VAL      3.2     0.2    -      -       -      -
    517A  TRP*     1.3   103.3    -      +       -      +
    519A  ILE*     1.3    61.6    +      -       -      +
    521A  LYS*     3.2     3.5    +      -       -      +
    522A  ARG*     3.0    41.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 519 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    515A  ARG*     3.1    36.9    +      -       +      +
    516A  VAL*     3.2    17.0    +      -       +      +
    518A  PHE*     1.3    75.3    -      -       -      +
    520A  ASN*     1.3    65.1    +      -       -      +
    522A  ARG*     3.1    25.5    +      -       -      +
    523A  MET*     3.1    44.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516A  VAL*     2.8    45.3    +      -       -      +
    517A  TRP*     3.7     6.9    -      -       +      +
    519A  ILE*     1.3    76.7    -      -       -      +
    521A  LYS*     1.3    61.0    +      -       -      +
    522A  ARG      3.4     0.7    +      -       -      -
    523A  MET*     3.5    23.9    +      -       -      +
    524A  ARG*     4.9     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    486A  GLU*     2.7    36.5    +      -       -      -
    489A  PHE*     3.6    37.2    -      -       +      -
    517A  TRP*     2.8    39.2    +      -       +      +
    518A  PHE*     3.5     9.2    -      -       -      +
    520A  ASN*     1.3    78.8    -      -       -      +
    522A  ARG*     1.3    57.3    +      -       -      +
    523A  MET      3.5     0.2    -      -       -      -
    524A  ARG*     3.1    20.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    489A  PHE*     4.0    15.3    -      -       +      -
    493A  GLN*     2.7    48.1    +      -       +      +
    494A  SER*     3.8    14.9    -      -       -      +
    495A  LEU      4.9     1.0    -      -       -      +
    518A  PHE*     3.0    35.0    +      -       -      +
    519A  ILE*     3.1    30.0    +      -       -      +
    521A  LYS*     1.3    75.0    -      -       -      +
    523A  MET*     1.3    68.0    +      -       -      +
    524A  ARG*     3.3    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519A  ILE*     3.1    36.1    +      -       +      +
    520A  ASN*     3.5    23.2    +      -       -      +
    522A  ARG*     1.3    76.1    -      -       -      +
    524A  ARG*     1.3    90.6    +      -       -      +
----------------------------------------------------------
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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