Contacts of the helix formed by residues 63 - 72 (chain A) in PDB entry 1YQZ
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.
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 63 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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38A MET* 3.8 2.9 - - - -
60A LEU* 4.5 14.8 - - + -
62A TYR* 1.3 79.1 - - - +
64A PRO* 1.3 77.6 - - - +
65A GLU* 3.6 7.2 + - - +
66A LYS* 3.2 41.3 + - - +
67A PHE* 2.9 21.8 + - - +
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Residues in contact with PRO 64 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36A ARG 5.8 0.9 - - - +
38A MET* 3.9 21.3 - - + +
63A THR* 1.3 86.9 - - - +
65A GLU* 1.3 63.0 + - - +
67A PHE* 3.2 3.4 + - + +
68A TYR* 3.0 24.6 + - - +
73A ILE 4.6 2.1 - - - +
75A VAL* 3.5 31.3 + - + +
77A THR* 3.9 28.5 - - + +
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Residues in contact with GLU 65 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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63A THR* 3.2 7.4 + - - +
64A PRO* 1.3 79.4 - - - +
66A LYS* 1.3 60.1 + - + +
68A TYR* 3.4 6.0 + - - +
69A ASP* 3.0 47.8 + - - +
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Residues in contact with LYS 66 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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60A LEU* 5.1 4.0 + - - +
61A ALA 4.1 14.8 + - - -
62A TYR* 3.8 19.6 - - + +
63A THR* 3.2 43.8 + - + +
65A GLU* 1.3 76.5 - - + +
67A PHE* 1.3 61.9 + - - +
69A ASP* 4.2 9.0 - - - +
70A ARG* 3.0 36.0 + - + +
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Residues in contact with PHE 67 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14A ALA* 3.8 23.3 - - + -
18A SER* 4.5 0.4 - - - -
31A ILE* 4.1 9.0 - - + -
38A MET* 3.6 26.7 - - + -
62A TYR* 3.5 26.8 - + - -
63A THR 2.9 15.5 + - - +
64A PRO* 3.2 5.6 + - + +
66A LYS* 1.3 76.5 - - - +
68A TYR* 1.3 57.9 + - - +
71A LYS* 2.8 55.5 + - + +
72A GLN 3.4 0.9 + - - -
73A ILE* 3.7 43.3 + - + +
75A VAL* 3.6 17.9 - - + -
441A COA 3.8 21.5 - - + -
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Residues in contact with TYR 68 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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64A PRO 3.0 15.7 + - - +
65A GLU* 3.8 5.6 - - - +
67A PHE* 1.3 78.7 - - - +
69A ASP* 1.3 67.3 + - - +
72A GLN* 2.8 52.5 + - + +
73A ILE 3.5 25.0 + - - +
74A THR* 3.8 19.1 - - - -
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Residues in contact with ASP 69 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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65A GLU* 3.0 40.3 + - - +
66A LYS* 3.7 10.0 - - - +
68A TYR* 1.3 85.4 - - - +
70A ARG* 1.3 61.7 + - + +
72A GLN* 3.1 14.6 + - - -
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Residues in contact with ARG 70 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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62A TYR* 4.3 21.8 - - + +
66A LYS* 3.0 20.0 + - + +
69A ASP* 1.3 83.5 + - + +
71A LYS* 1.3 68.9 + - + +
72A GLN* 3.7 9.0 + - - +
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Residues in contact with LYS 71 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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18A SER* 3.1 27.9 + - - +
21A ARG* 2.8 37.7 + - + +
22A ARG* 5.9 2.2 - - - +
62A TYR* 3.8 22.3 + - - -
67A PHE* 2.8 45.4 + - + +
70A ARG* 1.3 82.7 - - + +
72A GLN* 1.3 71.5 + - - +
73A ILE* 3.2 15.1 + - + +
441A COA 2.9 27.6 + - - -
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Residues in contact with GLN 72 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21A ARG* 2.8 30.7 + - - +
25A LYS* 5.4 4.4 - - - +
29A ILE 4.8 1.9 + - - +
68A TYR* 2.8 48.5 + - + +
69A ASP 3.1 26.1 + - - -
70A ARG 3.7 9.1 + - - +
71A LYS* 1.3 82.4 - - - +
73A ILE* 1.3 57.5 + - - +
74A THR 4.3 0.3 + - - -
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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
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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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