Contacts of the strand formed by residues 179 - 183 (chain C) in PDB entry 3SWD
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 179 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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153C GLY* 3.4 4.7 - - - -
154C ALA* 3.4 15.8 + - - +
178C GLY* 1.3 74.3 - - - -
180C THR* 1.3 67.7 + - - +
181C ILE* 4.1 15.1 - - + +
214C VAL* 3.8 28.0 - - + -
215C ILE 3.3 5.2 - - - +
216C GLU* 3.7 17.7 - - - +
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Residues in contact with THR 180 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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132C LEU* 3.7 18.0 - - + +
153C GLY* 3.1 21.5 - - - -
154C ALA 3.2 13.0 + - - +
156C ILE* 4.6 2.7 - - + -
169C ILE* 4.5 5.6 - - + -
173C ALA* 3.6 31.5 + - + +
176C ALA* 4.9 0.3 - - - +
178C GLY 4.1 1.1 + - - -
179C THR* 1.3 73.7 - - - +
181C ILE* 1.3 72.2 + - - +
182C ILE* 4.2 13.5 - - + -
213C ILE 3.7 0.3 - - - +
214C VAL* 3.4 3.5 - - - -
215C ILE* 2.8 36.5 + - + +
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Residues in contact with ILE 181 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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154C ALA 2.9 8.0 + - - +
155C HIS* 3.5 29.9 - - + +
156C ILE* 2.8 33.6 + - - +
179C THR* 4.1 16.6 - - + +
180C THR* 1.3 80.2 - - - +
182C ILE* 1.3 59.5 + - - +
183C GLU* 4.2 3.8 - - - -
212C ARG* 3.4 53.4 - - + +
213C ILE 3.3 4.0 - - - +
214C VAL* 4.2 10.5 - - + -
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Residues in contact with ILE 182 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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156C ILE* 3.4 5.8 - - + +
158C MET* 4.0 27.4 - - + -
166C THR* 4.1 9.9 - - + +
169C ILE* 3.7 32.8 - - + -
170C MET* 3.7 28.9 - - + +
180C THR* 4.4 2.9 - - + -
181C ILE* 1.3 72.8 - - - +
183C GLU* 1.3 61.1 + - - +
185C ALA* 3.7 19.9 - - + +
211C ASP 3.4 7.8 - - - +
212C ARG* 3.4 2.6 - - - +
213C ILE* 2.8 44.0 + - + +
215C ILE* 4.0 13.7 - - + -
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Residues in contact with GLU 183 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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155C HIS* 3.2 26.3 + - + +
156C ILE 2.8 11.7 + - - +
157C VAL* 3.9 23.3 - - + -
158C MET* 2.9 28.4 + - - +
181C ILE* 4.2 3.4 - - + -
182C ILE* 1.3 71.2 - - - +
184C ASN* 1.3 66.9 + - - +
185C ALA 3.2 2.1 + - - -
211C ASP* 3.8 2.6 - - - +
212C ARG* 2.6 53.8 + - - +
260G ASP* 2.8 23.7 - - + +
300G PRO* 5.2 11.1 - - + +
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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