Contacts of the strand formed by residues 148 - 152 (chain Q) in PDB entry 1E50
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 LEU 148 (chain Q).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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72Q CYS* 5.3 0.7 - - - -
75Q LEU* 3.9 17.7 - - + -
89Q PHE* 3.6 32.8 - - + -
105Q VAL* 3.7 21.1 - - + -
106Q MET 3.2 5.6 - - - +
107Q ALA* 4.7 4.3 - - + -
134Q LEU* 5.7 0.4 - - + -
136Q PHE* 4.4 9.2 - - + -
146Q PHE 4.5 1.6 - - - +
147Q THR* 1.3 78.2 - - - +
149Q THR* 1.3 61.0 + - - +
150Q ILE* 3.9 7.0 - - + -
160Q ALA 4.4 0.2 - - - -
161Q THR* 3.4 5.9 - - - -
162Q TYR* 3.1 48.5 + - + -
165Q ALA* 3.7 22.7 - - + -
166Q ILE* 4.3 17.3 - - + -
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Residues in contact with THR 149 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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104Q THR 3.3 10.0 - - - +
105Q VAL* 3.5 1.2 - - - -
106Q MET* 2.9 45.2 + - + +
147Q THR* 4.0 8.5 + - - +
148Q LEU* 1.3 77.1 + - - +
150Q ILE* 1.3 61.4 + - - +
151Q THR* 3.3 18.4 + - - +
159Q VAL* 3.9 17.7 - - + -
160Q ALA 3.8 3.1 - - - -
161Q THR* 4.7 5.2 + - - +
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Residues in contact with ILE 150 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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65Q THR* 3.7 20.2 - - + -
70Q PHE* 5.4 0.4 - - + -
72Q CYS* 3.6 32.1 - - + -
89Q PHE* 4.6 3.8 - - + -
91Q VAL* 3.7 27.8 - - + -
103Q VAL* 3.6 27.8 - - + -
104Q THR 3.3 5.6 - - - +
105Q VAL* 4.7 9.4 - - + +
148Q LEU* 4.9 8.7 - - + -
149Q THR* 1.3 72.3 - - - +
151Q THR* 1.3 59.4 + - - +
152Q VAL* 3.8 7.3 + - + +
158Q GLN 3.7 1.2 - - - +
159Q VAL* 3.3 4.2 - - - -
160Q ALA* 2.8 51.8 + - + +
162Q TYR* 5.5 1.8 - - + -
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Residues in contact with THR 151 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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102Q LEU 3.8 0.2 - - - +
103Q VAL* 3.5 1.4 - - - -
104Q THR* 2.9 43.1 + - - -
106Q MET* 5.2 5.2 - - - -
149Q THR* 3.3 20.7 + - - +
150Q ILE* 1.3 75.1 - - - +
152Q VAL* 1.3 58.2 + - - +
153Q PHE* 3.2 41.6 + - + -
157Q PRO* 4.5 8.1 - - + -
158Q GLN 3.3 9.0 - - - +
159Q VAL* 3.8 14.5 - - + +
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Residues in contact with VAL 152 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70Q PHE* 3.1 51.4 - - + -
97Q VAL* 4.2 11.4 - - + -
101Q THR* 3.9 17.0 - - + -
102Q LEU 3.7 3.6 - - - -
103Q VAL* 4.1 25.8 - - + -
124Q MET* 4.4 2.2 - - + -
150Q ILE* 4.4 8.3 - - + +
151Q THR* 1.3 69.2 - - - +
153Q PHE* 1.3 52.6 + - - +
154Q THR* 2.6 34.7 + - - +
158Q GLN* 2.7 27.0 + - + +
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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