Contacts of the helix formed by residues 205 - 213 (chain B) in PDB entry 1FT9
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 ASN 205 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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192B TYR* 4.8 0.7 - - - +
203B ILE* 3.1 11.1 + - - +
204B PRO* 1.3 83.6 - - + +
206B LEU* 1.3 60.1 + - - +
207B VAL* 3.0 10.2 + - - +
208B ARG* 2.5 48.3 + - + +
209B LEU* 3.9 8.7 + - - +
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Residues in contact with LEU 206 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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144B ILE* 3.7 25.8 - - + +
147B ALA* 5.0 8.1 - - + -
149B THR* 5.5 4.0 - - - +
160B VAL* 4.8 17.7 - - + -
203B ILE* 3.4 37.8 + - + +
205B ASN* 1.3 71.0 + - - +
207B VAL* 1.3 63.7 + - + +
208B ARG 3.2 1.6 - - - -
209B LEU* 3.3 2.0 + - - +
210B LYS* 2.8 36.3 + - + +
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Residues in contact with VAL 207 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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205B ASN* 3.0 6.8 + - - +
206B LEU* 1.3 79.9 - - + +
208B ARG* 1.3 56.7 + - - +
210B LYS* 3.3 8.2 + - + +
211B ALA* 2.9 29.3 + - + +
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Residues in contact with ARG 208 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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192B TYR* 3.8 34.9 - - + -
204B PRO 5.3 0.4 - - - +
205B ASN* 2.5 37.3 + - + +
207B VAL* 1.3 72.7 - - - +
209B LEU* 1.3 62.1 + - - +
211B ALA* 3.1 20.8 + - - +
212B ALA 3.2 5.7 + - - -
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Residues in contact with LEU 209 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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140B ALA* 3.7 30.9 - - + +
143B PHE* 3.6 24.9 - - + -
144B ILE* 3.4 22.8 - - + +
187B LEU* 5.8 3.1 - - + -
192B TYR* 4.2 16.7 - - + +
193B ILE* 4.1 23.3 - - + -
203B ILE* 3.6 32.3 - - + -
205B ASN 3.9 2.8 + - - +
206B LEU 3.3 7.8 + - - +
208B ARG* 1.3 74.4 - - - +
210B LYS* 1.3 57.5 + - - +
211B ALA 2.9 9.9 + - - -
212B ALA* 3.1 16.2 + - + +
213B ALA* 3.3 12.1 + - - +
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Residues in contact with LYS 210 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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144B ILE* 3.8 33.3 - - + +
206B LEU* 2.8 21.9 + - + +
207B VAL* 3.3 8.7 + - + +
209B LEU* 1.3 75.3 - - - +
211B ALA* 1.3 58.8 + - - +
213B ALA* 4.2 13.3 - - + +
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Residues in contact with ALA 211 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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207B VAL* 2.9 13.9 + - + +
208B ARG* 3.1 17.7 - - - +
209B LEU 2.9 0.4 - - - -
210B LYS* 1.3 80.4 - - - +
212B ALA* 1.3 66.8 + - - +
213B ALA 3.5 2.8 + - - -
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Residues in contact with ALA 212 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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136B LYS 6.1 0.2 - - - -
137B GLN* 3.6 22.8 + - + -
140B ALA* 3.8 15.5 - - + -
187B LEU* 5.5 8.5 - - + -
192B TYR* 5.4 7.4 - - + -
208B ARG 3.2 6.9 + - - +
209B LEU* 3.1 12.5 + - + +
211B ALA* 1.3 82.4 - - - +
213B ALA* 1.3 68.5 + - - +
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Residues in contact with ALA 213 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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137B GLN* 3.9 31.0 + - - +
140B ALA* 3.8 1.4 - - - +
141B GLY* 3.9 26.7 - - - +
144B ILE* 5.0 2.7 - - + -
209B LEU 3.3 9.8 + - - +
210B LYS* 4.2 15.9 - - + +
211B ALA 4.2 4.0 - - - -
212B ALA* 1.3 87.4 - - - +
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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