Contacts of the strand formed by residues 520 - 530 (chain A) in PDB entry 2Y74


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 HIS 520 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370A  ALA*     5.3     0.7    -      -       +      -
    371A  ILE      3.0    17.0    -      -       -      +
    372A  TYR*     3.5    35.1    +      +       +      -
    471A  T0I      4.9     1.3    -      +       -      -
    495A  ILE*     5.3     7.4    -      -       +      -
    496A  SER      5.7     1.6    -      -       -      -
    518A  THR      2.9    23.8    +      -       -      -
    519A  VAL*     1.3    76.7    -      -       -      +
    521A  THR*     1.3    67.0    +      -       -      +
    522A  HIS*     2.6    30.6    +      +       -      -
    683A  LEU*     3.5     5.0    -      -       -      +
    684A  HIS*     2.8    51.7    +      +       -      +
    686A  PRO*     4.3     5.4    -      -       +      -
    801A   CU      1.9    29.2    -      -       -      -
    562B  LEU*     4.1     3.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369A  LEU      3.6     0.3    -      -       -      +
    370A  ALA*     3.2     7.4    -      -       -      +
    371A  ILE*     2.9    42.4    +      -       +      +
    520A  HIS*     1.3    77.8    -      -       -      +
    522A  HIS*     1.3    65.2    +      -       -      +
    523A  SER*     4.5     4.5    +      -       -      -
    612A  GLY*     4.7     7.6    -      -       -      -
    613A  GLU      4.6     5.1    +      -       -      +
    628A  GLU*     4.2    12.1    +      -       -      -
    682A  PHE      3.5    13.0    -      -       -      +
    683A  LEU*     4.3     4.7    -      -       +      -
    684A  HIS      4.7     0.4    -      -       -      +
    544B  MET*     3.9    35.4    -      -       +      -
    546B  PHE*     5.8     0.4    -      -       +      -
    562B  LEU*     4.7     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369A  LEU      3.3     4.5    -      -       -      +
    370A  ALA*     4.5     4.4    -      -       +      +
    471A  T0I      3.4    33.4    -      +       -      -
    473A  TYR*     3.9    20.2    +      -       +      +
    489A  PHE*     4.6    10.8    -      -       +      -
    491A  ALA*     4.7     8.2    -      -       +      +
    520A  HIS*     2.6    23.0    +      +       -      -
    521A  THR*     1.3    73.1    -      -       -      +
    523A  SER*     1.3    63.9    +      -       -      +
    681A  GLY*     3.2    20.5    -      -       -      -
    682A  PHE*     3.2    47.6    +      +       +      +
    684A  HIS*     4.0     2.7    -      -       +      -
    801A   CU      1.8    32.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368A  ALA*     3.4     2.9    -      -       -      +
    369A  LEU*     2.7    49.0    +      -       -      +
    489A  PHE*     4.6     5.1    -      -       -      -
    521A  THR*     4.5     4.5    +      -       -      -
    522A  HIS*     1.3    76.8    +      -       -      +
    524A  ALA*     1.3    59.9    +      -       -      +
    627A  TRP*     3.8    21.2    -      -       -      -
    628A  GLU*     3.9    13.8    +      -       -      +
    679A  THR*     4.4     7.6    -      -       -      -
    680A  ALA      3.3    11.2    -      -       -      -
    681A  GLY*     4.6     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    365A  LEU*     4.2     6.5    -      -       +      -
    367A  GLU      3.2    10.8    -      -       -      +
    368A  ALA*     4.5     1.1    -      -       -      -
    475A  TRP*     4.3     7.0    -      -       +      -
    489A  PHE*     3.9    25.5    -      -       +      -
    523A  SER*     1.3    75.4    -      -       -      +
    525A  HIS*     1.3    61.1    +      -       -      +
    526A  PHE*     3.9    19.2    -      -       +      -
    627A  TRP*     3.9     3.8    -      -       -      -
    678A  VAL      3.8     0.7    -      -       -      +
    679A  THR*     3.5     4.5    -      -       -      +
    680A  ALA      3.0    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 525 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    365A  LEU*     3.2     7.6    -      -       -      +
    366A  GLN*     2.7    38.7    +      -       +      +
    367A  GLU      2.8    13.4    +      -       -      +
    524A  ALA*     1.3    73.4    -      -       -      +
    526A  PHE*     1.3    56.4    +      -       -      +
    627A  TRP*     3.4    47.2    -      +       +      +
    630A  TYR*     5.9     1.0    -      -       -      +
    644A  SER*     2.7    30.8    +      -       -      -
    660A  PHE*     3.9     8.2    -      +       -      -
    677A  TRP*     3.6    40.0    +      +       +      +
    678A  VAL      3.5     8.7    -      -       -      -
    679A  THR*     3.1    27.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 526 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363A  ILE*     5.6     1.3    -      -       +      -
    364A  SER      3.4     3.8    -      -       -      +
    365A  LEU*     3.9    21.8    -      -       +      -
    366A  GLN*     4.1     4.0    -      -       -      -
    475A  TRP*     4.4     2.7    -      +       -      -
    487A  ILE*     3.8    17.5    -      -       +      -
    489A  PHE*     4.1    20.6    -      -       +      -
    524A  ALA*     3.9    29.6    -      -       +      -
    525A  HIS*     1.3    78.0    -      -       -      +
    527A  LYS*     1.3    61.2    +      -       -      +
    528A  VAL*     3.9     1.3    +      -       +      -
    676A  ALA      3.8     0.2    -      -       -      +
    677A  TRP*     3.3     9.4    -      -       -      +
    678A  VAL*     2.8    45.1    +      -       +      +
    680A  ALA*     4.4    15.0    -      -       +      -
    702A  GLY*     4.9     3.4    -      -       -      -
    703A  PHE*     3.7    34.8    -      +       +      -
    806A  IMD      3.8    26.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with LYS 527 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362A  GLU*     3.0    36.4    +      -       -      +
    363A  ILE*     3.2     7.8    -      -       -      +
    364A  SER*     2.7    34.8    +      -       -      +
    366A  GLN*     3.2    29.3    -      -       -      +
    526A  PHE*     1.3    72.5    -      -       -      +
    528A  VAL*     1.3    62.1    +      -       -      +
    529A  ASP*     3.9     3.1    -      -       -      +
    637A  ARG*     3.7    19.7    -      -       -      +
    638A  LYS      5.9     0.2    +      -       -      -
    641A  GLU      4.6     3.0    +      -       -      -
    642A  PRO*     2.9    30.9    +      -       -      +
    675A  VAL*     3.9    20.0    -      -       +      -
    676A  ALA      3.7     2.2    -      -       -      -
    677A  TRP*     3.5    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 528 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362A  GLU      3.8     1.6    -      -       -      -
    363A  ILE*     4.4     8.7    -      -       +      +
    526A  PHE      4.3     4.3    -      -       -      +
    527A  LYS*     1.3    77.1    -      -       -      +
    529A  ASP*     1.3    58.9    +      -       -      +
    530A  LEU*     3.2    23.9    +      -       +      +
    589A  LEU*     5.3     0.2    -      -       -      +
    605A  ILE*     5.2     1.1    -      -       +      -
    675A  VAL*     3.6     1.7    -      -       -      -
    676A  ALA*     2.6    49.8    +      -       +      +
    678A  VAL*     4.1    16.6    -      -       +      -
    703A  PHE*     3.6    29.6    -      -       +      -
    705A  LEU*     3.7    34.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 529 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  LYS*     3.3    17.2    +      -       -      -
    360A  VAL*     3.3     5.1    -      -       -      +
    361A  TYR*     2.7    41.7    +      -       -      +
    362A  GLU*     2.6    31.6    +      -       +      +
    527A  LYS*     3.9     1.9    -      -       -      -
    528A  VAL*     1.3    68.2    -      -       -      +
    530A  LEU*     1.3    58.2    +      -       -      +
    531A  ASP*     3.3     0.2    -      -       -      +
    637A  ARG*     3.2    30.1    +      -       -      -
    673A  ASP*     3.9     0.3    -      -       -      +
    674A  LEU      3.4     3.8    -      -       -      +
    675A  VAL*     4.0    16.4    -      -       +      +
    803A   CA      2.2    33.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 530 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359A  LEU*     3.4    18.6    -      -       +      +
    360A  VAL*     3.5    19.7    -      -       +      -
    528A  VAL*     3.2    25.9    +      -       +      +
    529A  ASP*     1.3    73.6    -      -       -      +
    531A  ASP*     1.3    57.9    +      -       -      +
    532A  VAL*     3.6     9.2    -      -       +      -
    537A  ASN*     3.4     7.6    +      -       -      -
    589A  LEU*     4.1    29.0    -      -       +      +
    603A  TYR*     4.1    38.1    -      -       +      +
    605A  ILE*     4.7     7.0    -      -       +      -
    674A  LEU      3.3     5.1    +      -       -      +
    675A  VAL*     5.0     0.2    -      -       -      +
    705A  LEU*     4.3    15.7    -      -       +      -
    803A   CA      2.1    28.1    -      -       -      -
----------------------------------------------------------
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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