Contacts of the strand formed by residues 191 - 195 (chain A) in PDB entry 1MRA
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 GLY 191 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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161A ARG 3.0 13.9 + - - -
162A ALA* 3.5 17.5 - - - -
163A VAL* 3.2 15.6 + - - +
190A PHE* 1.3 89.9 - - - +
192A ILE* 1.3 62.9 + - - +
193A MET* 4.1 0.7 - - - -
218A THR* 3.5 12.8 - - - -
315A TRP* 6.2 0.4 - - - -
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Residues in contact with ILE 192 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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163A VAL* 3.7 6.7 - - + +
165A THR* 4.5 20.2 - - + -
179A VAL* 4.1 24.2 - - + +
182A ILE* 4.0 29.8 - - + -
183A ARG* 3.2 54.8 - - + +
186A VAL* 5.1 1.6 - - + -
190A PHE* 3.8 2.6 + - + +
191A GLY* 1.3 79.4 - - - +
193A MET* 1.3 57.9 + - - +
194A VAL* 4.7 1.6 - - + -
217A VAL* 3.5 14.0 - - + +
218A THR* 2.7 36.2 + - - +
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Residues in contact with MET 193 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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137A TYR* 4.1 15.7 - - + -
162A ALA* 4.1 15.0 - - + -
163A VAL 3.2 15.5 + - - +
164A LYS* 3.2 15.2 - - + +
165A THR* 2.8 28.1 + - - +
191A GLY* 5.6 0.2 - - - -
192A ILE* 1.3 74.0 - - - +
194A VAL* 1.3 62.7 + - - +
218A THR* 3.6 26.0 - - + +
219A TRP* 3.3 48.9 - - + +
315A TRP* 3.6 46.4 - - + +
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Residues in contact with VAL 194 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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164A LYS* 4.7 1.8 - - - -
165A THR* 3.3 11.2 - - + +
167A ILE* 3.3 26.5 - - + -
179A VAL* 3.9 20.4 - - + -
192A ILE* 4.5 2.5 - - + +
193A MET* 1.3 78.8 - - - +
195A ASP* 1.3 61.2 + - - +
196A TYR* 5.1 0.7 - - + -
212A LEU* 4.2 5.6 - - + -
217A VAL* 3.8 25.6 - - + -
219A TRP* 3.0 16.2 + - - +
220A ILE* 3.9 22.9 - - + -
221A GLU* 3.0 27.7 + - - +
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Residues in contact with ASP 195 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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25A ALA* 3.5 0.3 - - - +
164A LYS* 4.1 14.1 - - + -
165A THR 3.0 13.4 + - - +
166A LYS* 3.3 18.5 - - - +
167A ILE* 3.1 22.0 + - - +
194A VAL* 1.3 75.0 - - - +
196A TYR* 1.3 60.5 + - - +
197A ASN* 2.7 35.3 + - - -
221A GLU* 3.0 17.5 - - - +
222A GLU* 4.5 0.7 - - - +
360A MG 2.1 31.2 - - - -
399A APG 3.1 20.6 - - - +
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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