Contacts of the helix formed by residues 454 - 462 (chain A) in PDB entry 1N8T
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 SER 454 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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452A GLY 3.8 2.2 + - - -
453A LYS* 1.3 75.0 - - - +
455A PRO* 1.3 66.7 - - - +
456A GLU* 3.8 6.5 + - - +
457A ASP* 2.9 32.1 + - - +
458A LEU* 2.6 33.4 + - - +
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Residues in contact with PRO 455 (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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449A GLN* 5.9 2.7 - - - +
453A LYS 3.7 2.4 - - - +
454A SER* 1.3 86.9 - - - +
456A GLU* 1.3 55.6 + - - +
458A LEU* 3.7 8.8 - - + +
459A MET* 2.9 31.0 + - - +
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Residues in contact with GLU 456 (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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454A SER* 3.1 7.0 + - - +
455A PRO* 1.3 79.8 - - - +
457A ASP* 1.3 67.3 + - - +
459A MET* 3.3 9.3 + - - +
460A LYS* 3.1 25.2 + - + +
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Residues in contact with ASP 457 (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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453A LYS* 4.0 21.3 + - + +
454A SER* 2.9 28.6 + - - +
456A GLU* 1.3 84.5 - - - +
458A LEU* 1.3 63.3 + - - +
460A LYS* 3.4 37.7 + - - +
461A LEU* 3.4 10.6 + - - +
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Residues in contact with LEU 458 (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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445A ARG* 4.0 21.8 - - + +
448A LEU* 3.7 20.6 - - + +
449A GLN* 3.6 45.8 - - + +
453A LYS* 4.0 14.4 - - + +
454A SER 2.6 18.2 + - - +
455A PRO* 3.7 8.5 - - + +
457A ASP* 1.3 69.4 - - - +
459A MET* 1.3 69.0 + - - +
461A LEU* 3.0 2.3 + - - +
462A LEU* 2.8 52.9 + - + +
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Residues in contact with MET 459 (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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455A PRO 2.9 19.0 + - - +
456A GLU* 3.3 8.9 + - - +
458A LEU* 1.3 85.6 - - + +
460A LYS* 1.3 64.2 + - - +
461A LEU 3.2 0.2 + - - -
462A LEU* 4.0 4.6 - - - +
463A PRO* 3.5 17.8 - - - +
367B GLY* 6.0 0.3 - - - -
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Residues in contact with LYS 460 (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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453A LYS* 5.1 8.1 - - - +
456A GLU* 3.1 16.4 + - + +
457A ASP* 3.4 32.0 + - - +
458A LEU 3.2 0.2 - - - -
459A MET* 1.3 79.9 - - + +
461A LEU* 1.3 63.2 + - - +
463A PRO* 4.4 2.4 - - - +
464A HIS* 3.2 22.0 + - - -
91B SER* 3.8 20.8 + - - +
92B THR* 3.5 26.3 + - - +
93B GLU 5.2 0.4 - - - -
94B ASP* 5.0 10.6 - - - +
367B GLY* 5.5 3.1 - - - -
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Residues in contact with LEU 461 (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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448A LEU* 4.0 21.1 - - + -
453A LYS* 3.8 26.7 - - - +
457A ASP 3.7 11.9 - - - +
458A LEU 3.0 2.7 + - - +
460A LYS* 1.3 87.6 - - + +
462A LEU* 1.3 67.1 + - - +
463A PRO* 3.5 1.6 - - - -
464A HIS* 3.0 22.9 + - + +
465A LYS* 3.4 20.4 + - + +
92B THR* 4.1 17.0 - - - +
512B TRP* 3.6 48.9 - - + +
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Residues in contact with LEU 462 (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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441A THR* 3.5 33.7 - - + +
444A ALA* 3.6 17.5 - - + +
445A ARG* 3.4 44.9 - - - +
448A LEU* 3.7 12.0 - - + +
458A LEU* 2.8 29.9 + - + +
459A MET* 4.0 5.2 - - - +
461A LEU* 1.3 73.8 - - - +
463A PRO* 1.3 66.8 - - + +
465A LYS* 2.8 25.8 + - - +
466A VAL* 3.4 10.8 - - + +
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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