Contacts of the helix formed by residues 406 - 413 (chain A) in PDB entry 3APO
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 ALA 406 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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355A ALA* 4.0 27.6 - - + -
401A PHE* 4.1 12.4 - - + -
403A CYS 2.9 7.8 + - - +
404A SER 3.2 0.8 - - - -
405A SER* 1.3 83.4 + - - +
407A PRO* 1.3 71.6 - - - +
408A GLY 3.1 4.3 + - - -
409A ILE* 3.2 22.7 + - + +
410A CYS 4.1 1.4 + - - -
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Residues in contact with PRO 407 (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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373A PHE* 6.1 3.6 - - + -
403A CYS* 2.9 15.2 - - + +
404A SER* 4.1 10.3 - - - +
405A SER 4.3 0.4 - - - -
406A ALA* 1.3 87.6 - - - +
408A GLY* 1.3 51.1 + - - +
410A CYS* 3.1 8.4 + - + +
411A SER* 2.8 37.2 + - - -
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Residues in contact with GLY 408 (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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406A ALA 3.1 1.6 + - - -
407A PRO* 1.3 78.2 - - - +
409A ILE* 1.3 67.4 + - - +
411A SER* 3.8 9.0 - - - -
412A ASP* 3.1 33.2 + - - -
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Residues in contact with ILE 409 (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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355A ALA* 3.7 28.3 - - + -
358A LEU* 4.0 17.7 - - + -
359A GLU* 4.4 28.0 - - + +
371A PHE* 4.6 1.1 - - + -
401A PHE* 3.9 23.3 - - + -
406A ALA* 3.2 19.1 + - + +
408A GLY* 1.3 78.5 - - - +
410A CYS* 1.3 62.7 + - - +
412A ASP* 3.9 5.0 - - - +
413A LEU* 3.5 31.5 + - + +
428A THR* 6.3 1.8 - - + -
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Residues in contact with CYS 410 (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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371A PHE* 3.7 16.8 - - - -
373A PHE* 4.7 1.8 - - + -
401A PHE* 3.8 9.4 - - - -
403A CYS* 2.0 59.5 - - + -
406A ALA 4.7 0.2 - - - -
407A PRO* 3.1 9.4 + - + +
409A ILE* 1.3 74.0 - - - +
411A SER* 1.3 60.0 + - - +
412A ASP 3.2 2.2 - - - -
413A LEU* 3.0 14.6 + - - +
415A VAL* 2.8 42.5 + - + +
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Residues in contact with SER 411 (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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407A PRO* 2.8 21.9 + - - -
408A GLY* 3.8 10.0 + - - -
410A CYS* 1.3 72.3 - - - +
412A ASP* 1.3 70.9 + - - +
414A TYR* 3.1 24.4 + - - +
415A VAL 4.7 3.8 - - - +
416A PHE* 4.8 14.2 - - - -
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Residues in contact with ASP 412 (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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408A GLY* 3.1 21.8 + - - +
409A ILE* 3.9 6.1 - - - +
411A SER* 1.3 81.8 + - - +
413A LEU* 1.3 62.7 + - + +
414A TYR* 3.2 17.2 + - - -
461A GLN* 5.5 1.6 + - - -
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Residues in contact with LEU 413 (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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358A LEU* 6.1 0.4 - - + -
362A LEU* 6.1 0.7 - - + -
371A PHE* 4.0 31.2 - - + -
409A ILE* 3.5 21.2 + - + +
410A CYS* 3.0 10.2 + - - +
412A ASP* 1.3 80.7 - - + +
414A TYR* 1.3 72.3 + - - +
415A VAL* 3.1 14.0 + - + +
423A PHE* 4.1 11.9 - - + -
428A THR* 3.8 28.5 - - + -
431A TYR* 3.7 46.1 + - + +
433A ILE* 4.8 6.2 - - - +
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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