Contacts of the strand formed by residues 1281 - 1285 (chain A) in PDB entry 6CNC
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 ALA1281 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1158A LYS* 3.4 33.3 + - + +
1161A VAL* 3.7 22.7 - - + +
1162A GLU* 4.5 12.7 - - + +
1278A ILE* 5.1 1.3 - - + -
1280A ARG* 1.3 77.9 + - - +
1282A VAL* 1.3 65.5 + - - +
1293A LEU* 5.8 3.6 - - + -
1294A LEU 3.7 5.2 - - - +
1295A VAL* 4.1 20.0 - - + +
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Residues in contact with VAL1282 (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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1117A MET* 5.2 7.0 - - + +
1158A LYS* 4.6 4.9 - - - +
1280A ARG* 3.3 44.0 - - - +
1281A ALA* 1.3 75.6 - - - +
1283A ILE* 1.3 76.2 + - + +
1284A ASN* 5.2 2.0 - - + -
1293A LEU* 3.3 7.1 - - - +
1294A LEU* 2.9 50.7 + - + +
1296A GLU* 4.9 2.6 + - - +
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Residues in contact with ILE1283 (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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1150A ASP* 4.7 11.4 - - + +
1154A ALA* 3.5 32.5 - - + -
1155A ARG* 5.4 12.8 - - + +
1158A LYS* 4.4 24.3 - - + +
1282A VAL* 1.3 86.5 - - + +
1284A ASN* 1.3 71.4 + - - +
1285A ILE* 5.8 0.3 - - - +
1291A ARG* 4.5 19.1 - - + -
1292A GLU 4.5 7.9 - - - +
1293A LEU* 3.9 9.4 - - + +
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Residues in contact with ASN1284 (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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1117A MET* 6.3 1.0 - - - +
1282A VAL* 4.1 2.4 + - + -
1283A ILE* 1.3 75.2 - - - +
1285A ILE* 1.3 98.3 + - - +
1291A ARG* 3.2 8.8 - - - +
1292A GLU 2.9 38.0 + - - +
1294A LEU* 3.9 28.8 - - + +
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Residues in contact with ILE1285 (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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1283A ILE 5.8 0.2 - - - +
1284A ASN* 1.3 99.1 + - - +
1286A ARG* 1.3 61.3 + - - +
1287A ASP 3.3 15.3 + - - +
1288A ASP* 3.2 26.7 - - - +
1290A LYS 3.5 8.5 - - - +
1291A ARG* 3.3 37.9 - - + +
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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