Contacts of the strand formed by residues 203 - 207 (chain A) in PDB entry 2EIT
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 203 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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83A ALA* 2.9 30.0 + - - +
86A ALA* 4.1 2.9 - - + -
87A PHE* 3.6 24.4 - - - +
90A TRP* 4.1 9.0 - - + -
175A GLY 3.1 6.3 + - - +
176A ALA* 3.3 18.7 + - - +
177A GLY 3.0 24.0 + - - -
198A VAL* 4.6 0.2 - - - -
202A ASN* 1.3 78.3 - - - +
204A VAL* 1.3 68.2 + - - +
231A GLY 3.9 6.3 - - - -
232A VAL* 3.4 24.2 - - + -
255A PHE* 3.9 1.7 - - - -
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Residues in contact with VAL 204 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
83A ALA* 4.8 0.6 - - - +
177A GLY 3.4 4.5 - - - +
179A VAL* 3.5 31.0 - - + -
194A ILE* 4.1 24.9 - - + +
197A PRO* 4.1 17.7 - - + -
198A VAL* 3.7 23.6 - - + -
203A THR* 1.3 81.5 - - - +
205A ILE* 1.3 74.3 + - - +
206A ALA* 4.0 3.6 - - + +
231A GLY 4.8 0.2 + - - -
232A VAL 2.9 8.0 + - - +
233A VAL* 3.5 2.3 - - + -
234A ASN* 3.0 31.9 + - - +
255A PHE* 4.2 7.4 - - + -
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Residues in contact with ILE 205 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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79A ALA* 3.7 15.5 - - + +
80A LEU* 3.5 51.6 - - + +
83A ALA* 4.3 5.4 - - + -
176A ALA* 5.6 0.4 - - + -
177A GLY 2.9 12.1 + - - +
178A VAL* 3.3 8.7 - - + +
179A VAL 2.8 29.8 + - - -
204A VAL* 1.3 76.9 - - - +
206A ALA* 1.3 58.2 + - - +
207A LYS* 6.1 0.2 - - + -
234A ASN* 3.7 8.5 - - + +
236A LEU* 3.5 36.6 - - + -
247A LEU* 3.7 26.2 - - + -
253A ILE* 4.4 4.7 - - + -
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Residues in contact with ALA 206 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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179A VAL* 3.5 7.6 - - + -
190A PHE* 4.1 7.2 - - + -
194A ILE* 3.6 35.9 - - + -
204A VAL* 4.0 3.8 - - + +
205A ILE* 1.3 72.9 - - - +
207A LYS* 1.3 60.0 + - - +
208A PRO* 3.5 4.8 - - - +
220A PHE* 4.0 11.2 - - + -
234A ASN 2.7 17.5 + - - +
235A PHE* 3.7 0.7 - - - -
236A LEU* 2.8 31.5 + - - -
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Residues in contact with LYS 207 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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178A VAL* 4.8 6.3 - - + -
179A VAL 2.7 15.5 + - - +
180A ILE* 3.7 12.9 - - + -
181A ALA* 3.1 22.2 + - - +
190A PHE* 4.6 2.4 - - - -
205A ILE 4.0 0.2 + - - -
206A ALA* 1.3 72.9 - - - +
208A PRO* 1.3 88.4 + - - +
210A GLU* 3.6 4.0 + - - -
236A LEU* 3.3 23.1 - - + +
238A GLY 3.0 26.2 + - - +
240A GLY* 3.8 13.6 - - - +
243A VAL* 3.8 18.8 - - + -
244A GLY* 4.6 9.0 - - - +
247A LEU* 5.7 2.5 - - + -
1518A NAD 2.6 41.2 + - - -
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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