Contacts of the strand formed by residues 153 - 157 (chain M) in PDB entry 3INU
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 153 (chain M).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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151M PRO* 5.4 8.1 - - + -
152M VAL* 1.3 77.3 - - - +
154M VAL* 1.3 66.8 + - - +
209M ASN 3.5 1.3 - - - +
210M VAL* 3.4 4.3 - - - -
211M ASN* 2.9 56.7 + - - +
213M LYS* 6.4 2.2 - - - -
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Residues in contact with VAL 154 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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144M VAL* 4.5 2.0 - - + -
152M VAL* 3.9 17.7 - - + -
153M THR* 1.3 83.8 - - - +
156M SER* 1.3 73.7 + - - +
157M TRP* 4.4 1.1 - - - +
173M THR* 4.2 22.1 + - + +
187M LEU* 3.9 20.9 - - + -
189M SER* 3.7 22.4 - - - +
208M CYS* 4.2 15.0 - - + -
209M ASN 3.4 6.3 - - - +
210M VAL* 4.2 14.8 - - + -
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Residues in contact with SER 156 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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154M VAL* 1.3 77.0 - - - +
157M TRP* 1.3 64.7 + - - +
163M SER* 4.0 6.9 - - - -
164M GLY* 4.3 13.5 - - - -
208M CYS* 3.2 6.6 - - - +
209M ASN* 2.6 56.2 + - - +
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Residues in contact with TRP 157 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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140M LEU* 4.4 9.0 - - + -
141M GLY* 3.4 30.7 - - - -
142M CYS* 3.7 3.4 - - + -
154M VAL* 4.4 1.3 - - + +
156M SER* 1.3 78.5 - - - +
162M ASN* 1.3 73.6 + - - +
163M SER 3.0 2.3 + - - -
164M GLY* 3.2 7.8 + - - -
166M LEU* 3.3 39.3 + - + +
171M VAL* 3.8 27.7 - - + +
173M THR* 5.4 0.2 - - - -
189M SER* 3.0 47.0 + - - -
190M VAL 4.5 0.8 + - - -
191M VAL* 4.1 19.4 - - + +
206M TYR* 4.6 6.7 - + + -
207M ILE 3.7 12.1 - - - -
208M CYS* 3.5 41.0 - - + +
225M VAL* 4.4 15.3 - - + -
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Residues in contact with ASN 162 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157M TRP* 1.3 72.5 - - - +
163M SER* 1.3 71.5 + - - +
165M ALA* 2.9 30.0 + - + +
166M LEU* 4.1 11.4 - - - +
203M GLN* 5.2 5.7 + - - -
205M THR* 3.2 24.6 + - - +
206M TYR* 3.6 19.3 - - - -
207M ILE* 2.9 43.3 + - - +
209M ASN* 3.6 0.6 + - - -
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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