Contacts of the strand formed by residues 2 - 6 (chain V) in PDB entry 5A0Q
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 2 (chain V).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1V THR* 1.8 60.0 + - - +
3V ILE* 1.3 74.0 + - - +
4V MET 4.2 0.4 - - - -
16V ALA* 3.7 9.3 - - - +
17V ASP* 3.5 24.1 + - - +
128V GLY 3.4 3.6 - - - -
131V GLY 4.5 1.2 - - - -
132V SER* 4.5 7.4 - - - -
135V ILE* 3.4 32.8 - - + -
160V LEU* 3.6 18.4 - - + -
163V ALA* 3.8 13.3 - - + +
164V MET* 4.5 2.1 - - - +
167V ASP* 4.4 0.3 + - - -
170V SER* 3.0 27.9 + - - -
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Residues in contact with ILE 3 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1V THR* 4.4 2.2 - - + -
2V THR* 1.3 84.6 - - - +
4V MET* 1.3 66.0 + - - +
5V ALA* 4.0 0.4 - - + -
15V GLY 3.9 3.4 - - - +
16V ALA* 3.7 17.9 - - + -
33V LYS* 4.3 7.9 - - + -
44V CYS* 3.7 20.9 - - + -
45V ARG 3.3 39.3 - - - +
46V SER* 4.4 8.1 - - - -
97V GLY 5.2 0.4 - - - +
99V ILE* 3.2 38.6 - - + -
127V ILE* 2.9 29.8 - - - +
128V GLY* 2.9 14.7 + - - +
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Residues in contact with MET 4 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3V ILE* 1.3 75.3 - - - +
5V ALA* 1.3 57.3 + - - +
6V VAL* 3.5 28.7 - - + -
14V LEU* 3.5 2.8 - - - -
15V GLY 2.8 37.3 + - - -
125V PHE* 5.5 0.4 - - + -
126V ALA 3.6 5.8 - - - +
127V ILE* 3.2 26.5 - - + -
135V ILE* 4.5 2.2 - - + -
139V VAL* 3.4 31.0 - - + -
155V PHE* 3.9 10.3 - - + -
156V THR* 4.2 14.5 - - + +
159V ALA* 4.3 13.0 - - + -
160V LEU* 2.8 38.6 - - + +
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Residues in contact with ALA 5 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3V ILE* 4.0 2.0 - - + -
4V MET* 1.3 74.1 - - - +
6V VAL* 1.3 66.1 + - - +
14V LEU* 3.6 19.1 - - + -
44V CYS* 5.9 0.9 - - - -
99V ILE* 3.5 32.1 - - + -
111V VAL* 3.6 17.3 - - + -
125V PHE* 3.3 5.6 - - - +
126V ALA 2.9 32.3 + - - +
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Residues in contact with VAL 6 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4V MET* 3.5 27.1 - - + -
5V ALA* 1.3 74.2 - - - +
7V GLN* 1.3 73.9 + - - +
8V PHE* 5.0 0.9 - - + -
12V VAL* 3.5 8.3 - - - +
13V VAL* 2.7 32.3 + - + +
14V LEU* 4.4 0.3 - - - +
111V VAL* 3.6 5.8 - - - +
124V SER 4.4 0.4 - - - -
125V PHE* 4.2 14.6 - - + -
143V TYR* 4.4 5.4 - - + -
152V CYS* 3.7 28.3 - - + -
155V PHE* 3.6 21.1 - - + -
156V THR* 3.6 9.6 - - + -
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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
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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