Contacts of the strand formed by residues 154 - 157 (chain C) in PDB entry 5Y7K
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 TRP 154 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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128C TYR* 4.6 23.8 - + - -
132C TYR* 5.1 4.7 + - - -
152C THR* 3.6 1.7 - - - +
153C GLN* 1.3 83.9 - - - +
155C VAL* 1.3 83.4 + - + +
156C THR* 3.6 24.2 - - - +
166C TYR* 3.1 6.4 - - - +
167C VAL* 2.9 29.5 + - + +
197C GLY 4.7 1.3 - - - -
198C ILE* 4.2 16.2 - - + -
211C TYR* 5.0 8.1 - - + -
212C SER* 3.0 44.3 + - - -
214C LEU* 3.8 23.2 - - + +
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Residues in contact with VAL 155 (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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115C LEU* 3.4 30.3 - - + -
117C GLU* 5.3 0.7 - - - +
132C TYR* 3.4 36.8 - - + +
148C ILE* 4.6 7.2 - - + -
152C THR* 3.5 15.9 - - + -
154C TRP* 1.3 100.6 - - + +
156C THR* 1.3 67.4 + - - +
164C LEU* 5.5 2.7 - - + -
165C ALA 3.6 6.1 - - - +
166C TYR* 3.5 18.6 - - + -
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Residues in contact with THR 156 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
115C LEU* 5.2 1.3 - - - +
154C TRP* 3.6 27.9 - - - +
155C VAL* 1.3 78.6 - - - +
157C TRP* 1.3 72.2 + - - +
164C LEU* 3.6 7.0 - - - +
165C ALA* 3.1 33.4 + - + +
214C LEU* 4.2 14.1 - - + -
216C TRP* 3.8 19.6 + - + +
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Residues in contact with TRP 157 (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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106C SER* 3.1 38.0 + - - -
107C ILE 3.7 12.9 + - - -
108C SER* 3.0 25.4 - - - -
109C PRO* 3.8 13.2 - - + -
113C PHE* 3.7 17.3 - + + -
114C ILE 4.3 0.2 - - - -
115C LEU* 3.9 32.9 - - + +
134C ILE* 4.2 13.5 - - + -
156C THR* 1.3 83.9 + - - +
158C SER* 1.3 71.6 + - - +
162C HIS* 3.7 26.2 - - + -
163C LYS 3.4 22.4 - - - -
164C LEU* 3.4 25.8 - - + -
178C PRO* 4.5 4.7 - - + -
216C TRP* 3.0 16.9 + - - -
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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