Contacts of the strand formed by residues 181 - 186 (chain I) in PDB entry 5LK5
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 181 (chain I).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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176I VAL* 3.7 2.3 - - - +
177I ARG* 2.9 53.7 + - - +
179I ASP* 2.5 34.2 + - - +
180I ASN* 1.3 82.8 - - - +
182I TYR* 1.3 63.3 + - - +
194I GLY 3.3 9.0 - - - +
195I SER* 3.9 16.6 - - - +
196I LEU* 5.0 0.7 - - - -
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Residues in contact with TYR 182 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
146I VAL* 5.4 0.2 - - + -
148I PHE* 5.6 0.7 - - + -
157I ILE* 3.5 27.7 - - + +
159I LYS* 3.8 1.0 + - - +
174I LEU* 4.6 6.3 - - + -
175I ILE 3.0 13.9 - - - +
176I VAL* 4.6 7.9 - - + -
177I ARG* 4.3 7.0 + - - +
181I THR* 1.3 76.4 - - - +
183I GLU* 1.3 71.7 + - - +
184I VAL* 4.1 17.7 - - + -
192I GLU* 3.8 11.9 - - + +
193I SER* 3.4 18.3 + - - -
194I GLY 2.9 47.4 + - - +
195I SER 3.8 1.6 - - - -
196I LEU* 4.0 14.8 - - + -
199I ASP* 2.5 32.3 + - - -
200I TRP* 3.4 28.3 - + + -
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Residues in contact with GLU 183 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
174I LEU* 3.7 2.8 - - - +
175I ILE* 2.9 47.7 + - + +
177I ARG* 2.9 26.8 + - - +
182I TYR* 1.3 77.8 - - - +
184I VAL* 1.3 71.0 + - - +
185I LYS* 3.2 29.9 - - + -
190I GLN* 3.0 39.9 + - + +
192I GLU 3.4 9.0 - - - +
193I SER* 4.4 2.8 - - - -
336I GLU* 4.4 2.8 - - - +
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Residues in contact with VAL 184 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
132I PHE* 4.0 15.0 - - + -
144I VAL* 4.5 11.4 - - + -
146I VAL* 4.0 18.8 - - + -
161I ILE* 4.2 8.7 - - + -
173I THR 3.4 7.6 - - - +
174I LEU* 4.0 19.1 - - + -
182I TYR* 4.1 13.5 - - + -
183I GLU* 1.3 78.1 - - - +
185I LYS* 1.3 69.8 + - - +
186I ILE* 5.0 2.9 - - + -
190I GLN* 3.6 2.6 - - - +
191I VAL* 2.8 38.6 + - + +
192I GLU* 2.8 23.8 + - + +
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Residues in contact with LYS 185 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
172I TYR* 3.6 2.4 - - - +
173I THR* 2.9 59.3 + - + +
175I ILE* 4.8 12.7 - - + +
183I GLU* 3.2 27.8 - - + +
184I VAL* 1.3 80.4 - - - +
186I ILE* 1.3 66.4 + - - +
187I ASP 4.3 0.2 - - - -
188I ASN* 4.4 18.1 + - - +
189I SER 3.4 12.6 - - - +
190I GLN* 3.9 16.2 - - - +
336I GLU* 5.2 9.0 + - - +
340I GLU* 3.6 32.9 + - - +
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Residues in contact with ILE 186 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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144I VAL* 4.2 6.1 - - + -
162I ARG 3.5 24.7 - - - +
163I CYS* 4.4 2.7 - - - -
164I LYS* 3.9 37.7 - - + +
170I HIS* 4.7 0.9 - - + -
171I LEU 3.2 7.6 - - - +
172I TYR* 3.8 31.0 - - + +
184I VAL* 5.0 2.0 - - + -
185I LYS* 1.3 75.5 - - - +
187I ASP* 1.3 78.3 + - + +
188I ASN 3.1 1.1 - - - -
189I SER* 3.0 21.5 + - - +
191I VAL* 4.0 31.7 - - + +
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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
------------------------------------------------------------
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