Contacts of the strand formed by residues 167 - 171 (chain B) in PDB entry 4IYM
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 ALA 167 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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48B ALA* 3.7 31.2 - - + +
52B GLN* 3.6 22.4 - - + +
139B GLY 3.0 8.5 + - - +
140B ILE* 3.4 5.6 - - + -
141B GLY* 2.9 26.2 + - - -
166B ASN* 1.3 77.7 - - - +
168B PHE* 1.3 60.6 + - - +
195B GLY 4.1 3.1 - - - +
196B ILE* 3.5 16.2 - - + +
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Residues in contact with PHE 168 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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48B ALA* 6.0 0.2 - - - -
141B GLY* 3.3 11.4 - - - -
142B ALA 3.7 5.6 - - - -
143B GLY* 3.4 33.2 - - - -
157B MSE 3.7 24.9 - - + -
158B PHE* 3.3 24.0 - + + -
161B ALA* 3.7 20.4 - - + -
162B ILE* 4.0 18.4 - - + -
167B ALA* 1.3 74.9 - - - +
169B ILE* 1.3 65.0 + - - +
170B LEU* 3.9 29.4 - - + -
195B GLY 5.3 0.3 - - - +
196B ILE 2.8 14.7 + - - +
197B LEU* 3.6 10.0 - - + -
198B ASN* 3.0 26.5 + - - +
470B TRP* 3.9 15.0 - + - -
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Residues in contact with ILE 169 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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41B LEU* 4.2 10.8 - - + -
44B ALA* 4.2 8.7 - - + +
45B VAL* 3.5 46.2 - - + +
48B ALA* 4.8 3.6 - - + -
140B ILE* 4.0 16.8 - - + -
141B GLY 2.9 14.3 + - - +
142B ALA* 3.2 9.7 - - + +
143B GLY 3.0 24.1 + - - +
168B PHE* 1.3 77.5 - - - +
170B LEU* 1.3 63.2 + - - +
171B LYS 3.8 0.3 + - - -
198B ASN* 3.4 10.1 - - + +
200B VAL* 3.7 31.6 - - + -
210B ILE* 5.0 6.6 - - + +
216B ILE* 4.3 9.4 - - + -
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Residues in contact with LEU 170 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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143B GLY 3.8 4.5 - - - +
145B THR* 4.1 19.5 - - + +
154B PRO* 3.8 37.2 - - + -
158B PHE* 5.1 7.4 - - + -
168B PHE* 3.9 22.1 - - + -
169B ILE* 1.3 72.5 - - - +
171B LYS* 1.3 62.1 + - - +
172B PRO* 3.3 11.1 - - + +
180B PRO* 3.8 32.3 - - + +
183B LEU* 6.1 0.2 - - + -
197B LEU* 4.4 4.7 - - + -
198B ASN 2.7 16.5 + - - +
199B VAL* 3.5 15.4 - - + -
200B VAL* 2.8 28.6 + - - +
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Residues in contact with LYS 171 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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143B GLY 2.9 14.4 + - - +
144B ILE* 3.6 11.9 - - + +
145B THR* 3.4 18.6 + - - -
169B ILE 3.8 0.6 + - - -
170B LEU* 1.3 73.4 - - - +
172B PRO* 1.3 85.2 + - - +
173B SER* 4.3 1.4 - - - +
174B GLU* 3.7 10.1 + - - -
200B VAL* 3.4 17.9 - - + +
202B GLY 2.7 36.1 + - - +
203B ASP* 4.5 2.2 - - - +
206B ALA* 3.9 12.8 - - + -
207B VAL* 3.8 24.6 - - + +
210B ILE* 3.6 30.5 - - + -
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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