Contacts of the helix formed by residues 188 - 193 (chain C) in PDB entry 3FKS
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 GLN 188 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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148C VAL* 3.6 17.3 - - - +
149C GLN 2.7 33.4 + - - +
163C ARG* 4.9 2.1 + - - -
184C THR* 3.1 24.4 + - + +
185C ILE* 3.6 11.9 - - - +
186C LEU 3.2 1.2 - - - -
187C ASN* 1.3 75.4 - - - +
189C LYS* 1.3 62.4 + - - +
190C ARG 3.2 1.1 - - - -
191C TRP* 3.1 32.4 + - + +
192C ASN* 2.8 37.7 + - - +
201C LEU* 3.8 37.2 - - + +
203C CYS* 4.7 3.1 - - - -
230C TYR* 4.3 1.1 - - + -
267C LEU* 5.9 0.7 - - + -
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Residues in contact with LYS 189 (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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186C LEU 3.3 15.5 + - - +
187C ASN 2.9 2.3 + - - +
188C GLN* 1.3 79.0 - - - +
190C ARG* 1.3 64.8 + - + +
191C TRP 3.0 1.2 + - - -
192C ASN* 3.1 13.0 + - - +
193C ASN* 3.2 42.3 + - - +
225C HIS* 2.9 31.0 + - + +
226C ASP* 3.3 26.0 + - - +
230C TYR* 3.8 18.9 + - + +
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Residues in contact with ARG 190 (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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149C GLN* 5.5 1.1 + - - -
187C ASN* 2.8 40.5 + - - +
188C GLN 3.2 0.2 - - - -
189C LYS* 1.3 78.3 - - + +
191C TRP* 1.3 84.5 + - + +
193C ASN* 5.0 0.9 - - - +
194C GLY* 4.2 11.3 + - - -
437C PRO* 3.1 28.7 + - - +
439C ALA* 3.8 31.8 - - - +
442C GLU* 5.0 2.0 + - - -
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Residues in contact with TRP 191 (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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149C GLN* 3.1 58.1 - - + -
163C ARG* 5.6 2.2 - - - -
187C ASN* 4.0 14.8 - - - -
188C GLN* 3.1 48.6 + - + +
189C LYS 3.0 0.8 - - - -
190C ARG* 1.3 96.2 - - + +
192C ASN* 1.3 63.3 + - - +
193C ASN 3.4 2.0 - - - -
194C GLY* 3.5 12.2 + - - +
196C ASP 4.4 3.3 - - - +
199C LYS* 3.1 53.1 - - + +
200C LYS* 3.1 22.8 + - - +
201C LEU 5.1 0.7 - - - +
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Residues in contact with ASN 192 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
188C GLN* 2.8 26.3 + - - +
189C LYS 3.1 4.3 + - - +
191C TRP* 1.3 79.1 - - - +
193C ASN* 1.3 62.3 + - - +
194C GLY 3.3 0.4 - - - +
200C LYS* 3.3 29.4 + - + +
201C LEU 3.3 31.0 + - - +
202C TYR* 4.2 3.4 + - + -
229C LYS* 4.9 5.1 + - - -
230C TYR* 3.0 63.5 - - + +
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Residues in contact with ASN 193 (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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189C LYS* 3.2 47.4 + - - +
190C ARG 5.3 1.3 - - - +
192C ASN* 1.3 77.7 - - - +
194C GLY* 1.3 66.4 + - - +
226C ASP* 4.5 4.9 + - - -
229C LYS* 3.0 34.5 + - - +
230C TYR* 5.1 0.9 - - - -
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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