Contacts of the helix formed by residues 1286 - 1291 (chain A) in PDB entry 6J8H
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 ILE1286 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1271A VAL* 4.8 13.7 - - + -
1272A THR* 5.2 9.2 - - + -
1275A ALA* 3.9 29.2 - - + -
1276A ASN* 3.9 22.4 - - - +
1280A TYR* 5.0 3.6 - - + +
1281A SER* 4.0 16.8 - - - +
1282A ASP* 4.4 11.4 - - - +
1283A LEU* 3.9 7.5 + - + +
1284A GLY 3.0 0.9 + - - -
1285A PRO* 1.3 64.8 + - - -
1287A LYS* 1.3 70.3 + - - +
1288A SER 3.3 2.0 - - - -
1289A LEU* 2.8 37.9 + - + +
1290A ARG* 3.3 7.7 + - + +
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Residues in contact with LYS1287 (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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1282A ASP* 3.7 34.5 - - + +
1283A LEU 4.7 0.4 - - - -
1284A GLY* 2.1 31.4 + - - +
1286A ILE* 1.3 80.0 - - - +
1288A SER* 1.3 66.2 + - - +
1290A ARG* 3.1 39.9 + - - +
1291A THR* 5.0 8.1 - - - +
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Residues in contact with SER1288 (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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1284A GLY* 3.1 8.4 + - - -
1285A PRO* 4.2 20.2 - - - -
1286A ILE 3.3 0.4 - - - -
1287A LYS* 1.3 81.5 - - - +
1289A LEU* 1.3 61.2 + - - +
1291A THR* 2.7 40.4 + - - +
1292A LEU* 4.8 0.3 - - - +
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Residues in contact with LEU1289 (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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1268A VAL* 3.6 33.2 - - + +
1271A VAL* 4.5 23.3 - - + -
1272A THR* 4.4 9.2 - - + +
1285A PRO* 4.5 9.1 - - + +
1286A ILE* 2.8 26.1 + - + +
1288A SER* 1.3 79.5 - - - +
1290A ARG* 1.3 64.0 + - - +
1292A LEU* 2.9 41.9 + - + +
1293A ARG 4.1 0.5 + - - -
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Residues in contact with ARG1290 (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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1212A GLU* 2.9 32.5 + - - -
1272A THR* 4.6 17.7 - - + +
1276A ASN* 5.4 9.2 + - - +
1286A ILE* 3.3 7.6 + - + +
1287A LYS* 3.1 35.0 + - - +
1289A LEU* 1.3 79.3 - - - +
1291A THR* 1.3 63.0 + - - +
1293A ARG* 3.0 54.2 + - - +
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Residues in contact with THR1291 (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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1287A LYS* 3.9 8.5 + - - +
1288A SER* 2.7 32.5 + - - +
1290A ARG* 1.3 79.6 - - - +
1292A LEU* 1.3 62.6 + - + +
1293A ARG* 3.0 6.0 + - - +
1294A ALA* 3.7 6.6 + - - +
1661A PHE* 3.4 22.8 - - + -
1664A SER* 3.5 25.9 + - - -
1665A ASN* 4.3 16.3 + - - +
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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