Contacts of the strand formed by residues 204 - 208 (chain D) in PDB entry 1XV2
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 204 (chain D).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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206C GLN* 3.9 31.4 + - + +
207C GLN 3.4 9.2 - - - +
208C HIS* 4.0 14.3 - - + -
209C PHE* 5.0 1.1 - - - -
3D ASN 3.2 4.3 + - - +
4D VAL* 3.4 29.8 - - + +
5D LEU 3.0 24.1 + - - -
202D PHE* 4.0 7.3 - - - +
203D GLU* 1.3 86.8 + - - +
205D PHE* 1.3 67.6 + - - +
206D GLN* 4.5 1.8 - - + +
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Residues in contact with PHE 205 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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164C PHE* 5.2 3.1 - + - -
205C PHE* 3.6 4.7 - + - +
207C GLN* 2.8 50.9 + - + +
209C PHE* 3.9 16.8 - - + -
5D LEU* 3.7 26.9 - - + +
7D GLN* 3.8 33.0 - - + -
109D PHE* 3.7 37.5 - + + -
164D PHE* 4.3 8.5 - + - -
167D VAL* 3.9 15.3 - - + -
204D THR* 1.3 74.0 - - - +
206D GLN* 1.3 57.9 + - - +
207D GLN* 3.6 36.8 - - + -
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Residues in contact with GLN 206 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
204C THR* 3.9 24.9 + - + +
205C PHE 3.6 3.1 - - - +
206C GLN* 4.7 7.3 - - + +
4D VAL* 3.5 29.1 - - + +
5D LEU 2.8 10.0 + - - +
6D TYR* 3.5 29.8 - - + -
7D GLN 3.0 26.5 + - - +
31D HIS* 4.8 8.0 + - - -
204D THR* 4.0 5.2 - - + +
205D PHE* 1.3 73.0 - - - +
207D GLN* 1.3 59.5 + - - +
208D HIS 3.9 0.3 + - - -
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Residues in contact with GLN 207 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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164C PHE* 4.0 7.4 - - + -
204C THR* 3.3 6.2 - - - +
205C PHE* 2.8 51.4 + - + +
7D GLN* 2.8 39.7 + - - -
9D GLY 2.8 26.8 + - - +
10D THR* 3.6 12.0 - - - +
167D VAL* 3.6 3.6 - - - +
205D PHE* 3.6 19.7 + - + -
206D GLN* 1.3 71.5 - - - +
208D HIS* 1.3 81.7 + - - +
209D PHE* 3.6 26.3 - - + -
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Residues in contact with HIS 208 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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203C GLU* 2.9 42.7 + - + +
204C THR* 3.8 11.2 - - + +
6D TYR* 3.4 32.6 + + + +
7D GLN 2.8 15.0 + - - +
8D HIS* 3.1 31.1 + + - +
9D GLY* 3.0 27.2 + - - -
206D GLN 3.9 0.4 + - - -
207D GLN* 1.3 78.9 + - - +
209D PHE* 1.3 74.9 + - - +
210D PRO* 4.6 2.0 - - + -
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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