Contacts of the strand formed by residues 76 - 83 (chain E) in PDB entry 1A4Y
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 PHE 76 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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46E ILE* 3.7 18.4 - - + -
47E HIS 4.1 8.5 - - - -
48E GLY* 5.9 0.2 - - - -
49E ASN 4.9 2.2 - - - -
52E SER* 3.4 37.0 - - - -
53E ILE* 3.8 17.7 - - + -
56E ILE* 3.8 13.0 - - + -
61E ASN* 4.0 9.6 - - - -
72E SER* 3.6 29.4 - - - -
74E SER* 3.6 13.5 - - - -
75E SER* 1.3 74.8 - - - +
77E GLN* 1.3 65.1 + - - +
78E VAL* 3.3 16.2 + - + +
100E PHE* 3.2 10.0 - - - -
101E ARG 2.7 34.3 + - - +
103E VAL* 4.1 13.2 - - + -
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Residues in contact with GLN 77 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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18E PRO* 5.8 0.7 - - + -
21E ARG* 2.7 45.5 + - - +
46E ILE* 3.9 0.2 - - - -
47E HIS* 2.8 48.4 + - + +
48E GLY* 5.9 0.4 - - - -
76E PHE* 1.3 71.5 - - - +
78E VAL* 1.3 61.1 + - - +
99E GLY 3.6 5.9 - - - +
100E PHE* 3.6 29.0 - - + +
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Residues in contact with VAL 78 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21E ARG* 3.1 8.1 + - - +
44E THR* 4.1 10.5 - - + -
45E PHE 3.2 11.4 - - - +
46E ILE* 4.2 9.2 - - + -
47E HIS* 3.8 1.3 - - - -
76E PHE* 3.6 21.1 - - + +
77E GLN* 1.3 80.9 - - - +
79E THR* 1.3 64.5 + - - +
80E THR* 4.9 2.0 - - - +
97E THR 5.5 0.7 - - - +
98E ALA* 3.4 1.1 - - - -
99E GLY* 2.9 48.7 + - - +
101E ARG* 4.3 10.8 - - + +
103E VAL* 4.2 15.9 - - + -
120E PHE* 4.0 22.0 - - + -
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Residues in contact with THR 79 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21E ARG* 3.1 39.9 + - + +
25E TYR* 3.9 25.8 - - + -
26E CYS* 4.4 4.3 - - - -
43E ASN 3.8 1.4 - - - +
44E THR* 3.4 0.8 - - - -
45E PHE* 2.7 40.5 + - - +
47E HIS* 2.6 28.2 + - - -
78E VAL* 1.3 72.8 + - - +
80E THR* 1.3 62.7 + - - +
81E CYS 4.0 0.3 + - - -
96E ALA* 4.3 13.0 - - + -
97E THR 3.5 8.7 - - - +
98E ALA* 4.6 0.8 - - - +
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Residues in contact with THR 80 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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26E CYS* 4.3 0.2 - - - -
42E ILE* 3.9 24.5 - - + -
43E ASN 3.6 3.4 - - - +
44E THR* 2.7 30.3 + - - +
78E VAL* 4.2 2.5 - - - +
79E THR* 1.3 73.7 - - - +
81E CYS* 1.3 64.5 + - - +
82E LYS* 4.8 5.3 - - + +
95E ARG 3.6 2.3 - - - +
96E ALA* 3.5 3.6 - - - -
97E THR* 2.8 52.7 + - - -
120E PHE* 3.7 27.5 + - - +
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Residues in contact with CYS 81 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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25E TYR* 4.9 0.4 - - - -
26E CYS* 2.0 57.0 - - + -
29E ILE* 4.5 1.1 - - - -
30E MET* 4.4 11.4 - - + -
41E ASP 4.1 0.3 - - - +
42E ILE* 3.4 6.2 - - - +
43E ASN* 2.7 42.1 + - - +
45E PHE* 4.1 23.6 - - - -
79E THR* 4.7 3.6 - - - -
80E THR* 1.3 73.0 - - - +
82E LYS* 1.3 61.4 + - - +
94E TYR* 4.0 12.8 - - + -
95E ARG 3.9 0.9 - - - -
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Residues in contact with LYS 82 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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320D LYS* 3.9 7.9 - - - +
349D ASN* 4.8 5.5 + - - -
41E ASP* 3.2 31.2 + - - +
42E ILE* 3.7 31.9 - - + -
80E THR* 4.8 5.6 - - + +
81E CYS* 1.3 72.3 - - - +
83E LEU* 1.3 90.7 + - - +
84E HIS* 3.2 1.4 + - - +
94E TYR* 3.1 9.5 - - - -
95E ARG* 2.8 46.6 + - + +
97E THR* 6.0 0.7 - - - +
120E PHE 5.9 0.2 - - - +
121E ARG* 4.7 11.3 - - - +
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Residues in contact with LEU 83 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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320D LYS* 4.1 20.0 + - + +
39E CYS* 3.7 22.7 - - + +
40E LYS 3.7 7.6 - - - +
41E ASP* 2.9 31.2 + - + +
82E LYS* 1.3 83.8 + - - +
84E HIS* 1.3 63.1 + - - +
85E GLY* 3.9 6.4 + - - +
87E SER 4.4 15.5 - - - +
88E PRO* 5.1 4.5 - - + -
92E CYS* 3.8 17.0 - - + -
93E GLN 3.2 20.2 - - - +
94E TYR* 3.2 25.0 - - + -
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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
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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