Contacts of the strand formed by residues 240 - 244 (chain C) in PDB entry 1ZUM
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 LYS 240 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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159C VAL* 4.2 11.9 - - + -
161C VAL 3.3 3.2 + - - -
162C CYS* 3.4 11.5 - - + -
163C GLY 2.6 34.0 + - - -
238C VAL* 3.3 6.8 - - - +
239C ASP* 1.3 79.4 - - - +
241C VAL* 1.3 59.2 + - - +
242C ALA* 3.4 22.0 - - - +
263C LYS* 4.9 0.9 - - - -
264C ARG* 3.3 27.4 - - + +
266C THR* 4.1 12.7 + - - +
484C ALA* 3.2 42.3 - - - +
485C TYR* 3.4 42.6 + - + -
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Residues in contact with VAL 241 (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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163C GLY 3.3 10.5 - - - +
165C ILE* 4.3 20.2 - - + -
232C ILE* 4.7 2.5 - - + -
233C ALA* 4.3 26.2 - - + +
238C VAL* 4.8 4.5 - - + -
240C LYS* 1.3 78.7 - - - +
242C ALA* 1.3 66.6 + - - +
243C PHE* 4.1 4.0 - - + +
263C LYS* 4.0 16.6 - - + -
264C ARG 2.8 19.2 + - - +
265C VAL* 3.4 28.8 - - + +
266C THR* 3.1 22.5 + - - +
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Residues in contact with ALA 242 (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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163C GLY 2.9 9.7 + - - +
164C GLN* 3.8 3.3 - - + -
165C ILE* 3.1 28.1 + - - +
178C LYS* 3.9 24.8 - - + -
240C LYS* 3.4 24.4 - - - +
241C VAL* 1.3 73.2 - - - +
243C PHE* 1.3 59.8 + - - +
266C THR* 3.5 12.1 - - - +
268C GLU* 4.3 3.4 - - - +
485C TYR* 4.0 6.3 - - - +
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Residues in contact with PHE 243 (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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165C ILE* 3.7 39.7 - - + -
241C VAL* 4.1 4.4 - - + -
242C ALA* 1.3 73.1 - - - +
244C THR* 1.3 69.0 + - - +
245C GLY* 3.5 36.6 - - - -
266C THR 3.0 7.6 + - - +
267C LEU* 3.7 30.3 - - + -
268C GLU* 2.8 31.0 + - - +
269C LEU* 4.1 15.0 - - + -
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Residues in contact with THR 244 (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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165C ILE 3.4 9.4 + - - +
166C ILE 4.3 0.5 - - - -
167C PRO* 3.2 43.0 - - + +
174C MET* 4.3 13.7 - - - -
178C LYS* 2.9 20.1 + - - +
243C PHE* 1.3 79.9 - - - +
245C GLY* 1.3 61.1 + - - +
268C GLU* 2.7 38.8 + - + +
302C CYS* 6.4 3.6 - - + -
476C GLU* 5.1 3.1 - - - +
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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