Contacts of the helix formed by residues 429 - 433 (chain O) in PDB entry 3H1J
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 ASP 429 (chain O).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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60B THR* 3.0 45.3 + - - +
61B ALA* 5.1 1.4 - - - -
247O GLN* 3.3 11.5 + - - +
249O GLY* 3.5 22.3 - - - +
250O HIS 3.3 9.5 + - - +
251O SER* 5.2 0.9 - - - -
253O VAL* 3.4 17.0 - - - +
330O ALA* 3.7 21.7 - - + +
428O GLY* 1.3 68.9 - - - -
430O LEU* 1.3 55.6 + - - +
431O GLY* 2.9 14.6 + - - -
432O SER 4.5 1.2 + - - -
433O THR* 4.4 0.2 + - - -
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Residues in contact with LEU 430 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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245O ARG* 3.5 52.8 + - + +
246O GLU 3.6 20.2 - - - +
247O GLN* 2.9 16.7 + - + +
253O VAL* 3.9 7.9 - - + -
426O ALA* 3.8 14.6 - - + -
427O SER 3.6 31.0 - - - +
428O GLY 2.7 15.5 + - - +
429O ASP* 1.3 68.7 - - - +
431O GLY* 1.3 63.6 + - - +
432O SER 3.3 2.2 - - - -
433O THR* 3.0 32.5 + - - +
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Residues in contact with GLY 431 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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60B THR* 4.3 14.1 - - - -
247O GLN* 4.1 2.2 + - - -
429O ASP* 2.9 22.3 + - - -
430O LEU* 1.3 78.5 - - - +
432O SER* 1.3 58.7 + - - -
433O THR 3.7 1.7 + - - +
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Residues in contact with SER 432 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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330O ALA* 3.6 12.5 + - - +
331O ALA* 3.6 32.4 + - - +
333O ALA* 4.1 2.5 - - - -
334O GLY* 3.0 25.1 + - - -
429O ASP 4.5 0.4 + - - -
430O LEU 3.3 0.4 - - - -
431O GLY* 1.3 74.6 - - - +
433O THR* 1.3 60.9 + - - +
434O PRO* 3.7 0.5 - - - +
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Residues in contact with THR 433 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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245O ARG* 3.1 29.6 + - - +
253O VAL* 3.6 19.4 - - + +
333O ALA* 3.6 6.9 - - - +
337O ILE* 3.6 18.4 - - + -
424O MET* 4.4 5.8 - - + -
426O ALA* 4.5 4.7 - - + -
430O LEU* 3.0 40.3 + - + +
431O GLY 3.4 1.6 - - - +
432O SER* 1.3 78.3 + - - +
434O PRO* 1.3 77.3 - - + +
435O PHE* 4.0 5.9 + - - -
438O GLU* 4.8 0.2 - - - +
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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