Contacts of the strand formed by residues 19 - 25 (chain E) in PDB entry 4NQE
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 MET 19 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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8E PRO* 3.6 34.3 - - + -
11E GLN* 3.8 27.1 - - + +
13E LEU* 3.7 30.3 - - + -
18E SER* 1.3 76.9 - - - +
20E THR* 1.3 87.8 + - - +
21E LEU* 3.8 15.7 - - + -
76E LEU 3.9 0.7 - - - +
77E ARG* 3.5 3.6 - - - +
78E LEU* 2.8 44.3 + - + +
112E LEU* 4.5 5.4 - - + -
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Residues in contact with THR 20 (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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8E PRO* 4.5 1.9 - - - +
19E MET* 1.3 91.3 - - - +
21E LEU* 1.3 65.7 + - - +
22E GLN* 3.3 29.7 + - - +
75E SER* 4.1 12.3 - - - +
76E LEU 3.3 10.1 - - - +
77E ARG* 2.9 36.5 + - + +
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Residues in contact with LEU 21 (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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7E THR 3.7 5.2 - - - +
8E PRO* 3.6 24.5 - - + -
19E MET* 3.8 13.9 - - + -
20E THR* 1.3 72.0 - - - +
22E GLN* 1.3 61.0 + - - +
34E TRP* 3.6 21.8 - - + -
75E SER* 3.3 6.2 - - - -
76E LEU* 2.7 51.3 + - + +
78E LEU* 4.9 4.5 - - + -
89E TYR* 3.7 39.7 - - + -
110E SER* 3.9 12.1 - - - +
112E LEU* 3.8 23.8 - - + -
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Residues in contact with GLN 22 (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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5E THR 4.7 0.2 - - - -
6E GLN* 3.2 7.2 - - - +
7E THR* 3.1 45.0 + - - +
20E THR* 3.3 28.6 - - - +
21E LEU* 1.3 75.2 - - - +
23E CYS* 1.3 65.8 + - - +
34E TRP* 4.0 2.1 - - - -
69E LEU* 4.2 14.5 - - - +
73E GLU* 4.3 10.7 + - - -
75E SER* 4.1 14.3 - - - +
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Residues in contact with CYS 23 (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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4E VAL* 3.6 18.4 - - - -
5E THR 3.5 6.5 - - - -
6E GLN* 4.3 1.3 - - + -
22E GLN* 1.3 80.1 + - - +
24E ALA* 1.3 63.5 + - - +
32E MET* 3.9 9.2 - - - -
34E TRP* 3.5 7.0 - - + -
72E ARG 3.9 0.2 - - - +
73E GLU* 3.2 6.7 - - - +
74E PHE 3.0 43.5 + - - +
91E CYS* 2.0 51.1 - - + -
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Residues in contact with ALA 24 (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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3E GLY 3.8 0.5 - - - +
4E VAL* 3.6 2.8 - - - +
5E THR* 2.9 40.5 + - + +
23E CYS* 1.3 75.9 - - - +
25E GLN* 1.3 59.9 + - - +
32E MET* 4.5 2.0 - - - -
72E ARG* 3.2 35.7 - - - +
73E GLU* 3.9 12.6 - - + -
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Residues in contact with GLN 25 (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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3E GLY 3.3 10.3 - - - +
4E VAL* 4.1 9.2 - - + -
24E ALA* 1.3 75.0 - - - +
26E ASP* 1.4 58.6 + - - +
27E MET* 3.0 19.9 + - + +
28E ASN* 4.2 3.1 + - - +
29E HIS* 3.0 44.3 + - - +
32E MET* 3.8 21.7 - - + -
71E LYS* 3.1 27.1 + - - +
72E ARG* 2.9 36.9 + - - +
93E SER* 3.8 22.9 - - - +
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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