Contacts of the strand formed by residues 180 - 183 (chain D) in PDB entry 1C9T
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 MET 180 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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98D THR* 3.5 16.2 - - - +
99D LEU 3.2 26.0 - - - +
100D ASN* 3.7 7.9 - - - -
101D ASN 6.0 0.4 - - - +
165D ASP* 4.8 4.5 - - - +
175D GLN 3.8 11.2 - - - +
176D ILE* 4.3 11.3 - - + +
177D THR* 3.1 53.0 + - + +
178D SER 3.3 1.1 + - - -
179D ASN* 1.3 83.2 - - + +
181D PHE* 1.3 66.2 + - - +
215D TRP* 3.6 33.4 - - - +
227D VAL* 3.9 11.2 - - + -
228D TYR 3.2 7.2 - - - +
229D THR* 5.5 0.4 - - - -
230D LYS* 4.4 8.0 + - - +
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Residues in contact with PHE 181 (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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162D ILE* 4.0 32.5 - - + -
163D LEU 5.7 1.6 - - - +
165D ASP* 6.0 1.1 - - - +
168D CYS* 4.0 7.4 - - - -
180D MET* 1.3 77.7 - - - +
182D CYS* 1.3 71.3 + - - +
183D ALA* 4.0 11.4 - - + -
199D VAL* 4.0 13.0 - - + -
210D GLN* 3.5 29.2 - - + -
211D GLY* 3.5 24.5 - - - -
227D VAL* 3.5 1.4 - - - -
228D TYR* 2.8 51.5 + + + -
229D THR 3.8 3.4 - - - -
230D LYS* 3.9 26.2 - - + -
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Residues in contact with CYS 182 (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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162D ILE 3.7 0.2 - - - -
163D LEU* 2.8 45.9 + - + +
165D ASP* 6.2 0.2 - - - +
168D CYS* 2.0 64.3 - - + +
172D TYR* 4.3 9.9 - - - -
181D PHE* 1.3 79.6 - - - +
183D ALA* 1.3 63.4 + - - +
225D PRO* 4.2 6.5 - - + -
226D GLY 3.3 6.3 - - - +
227D VAL* 4.1 17.9 - - - -
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Residues in contact with ALA 183 (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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136D CYS* 6.3 1.1 - - + -
138D ILE* 4.7 9.2 - - + -
160D ALA* 4.8 2.0 - - + +
161D PRO 3.2 18.8 - - - +
162D ILE* 4.3 2.0 - - + -
163D LEU* 4.0 5.4 - - - -
181D PHE* 4.0 12.6 - - + -
182D CYS* 1.3 77.3 - - - +
184D GLY* 1.3 59.9 + - - +
189D ASP* 4.8 1.0 - - - +
199D VAL* 5.6 3.1 - - + -
225D PRO* 4.0 1.6 - - - +
226D GLY* 3.0 28.2 + - - +
228D TYR* 3.6 27.4 + - + -
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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