Contacts of the helix formed by residues 328 - 332 (chain D) in PDB entry 1OHV
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 328 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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354C TRP* 3.6 12.1 - - - -
135D CYS* 3.4 10.6 - - - -
136D GLY* 3.2 34.1 + - - -
299D GLU 5.3 0.2 - - - +
300D VAL* 3.7 15.3 - - - +
303D GLY 5.3 0.7 - - - +
327D PHE* 1.3 80.5 - - - +
329D LYS* 1.3 77.4 + - - +
330D LYS* 2.9 2.8 + - - +
331D MET* 2.9 17.1 + - - +
333D THR 3.6 13.7 - - - -
334D GLY* 3.7 6.1 - - - -
600D PLP 4.4 0.9 + - - -
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Residues in contact with LYS 329 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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353C THR* 3.2 22.9 - - + +
354C TRP* 3.6 13.8 - - + -
72D ILE* 3.3 30.5 - - - +
73D SER 3.5 11.9 - - - +
74D SER* 3.5 25.7 - - - +
300D VAL* 3.4 24.0 - - + +
301D GLN* 3.5 13.3 - - + +
328D SER* 1.3 78.9 + - - +
330D LYS* 1.3 66.5 + - - +
332D MET* 2.9 17.8 + - - -
500D ACT 4.2 2.4 - - - +
600D PLP 1.4 83.2 + - + +
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Residues in contact with LYS 330 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70D SER* 4.8 2.0 + - - -
73D SER* 3.4 40.6 + - - +
74D SER* 3.6 11.9 - - - +
75D ILE 4.5 3.4 + - - +
76D PRO* 3.6 49.8 - - + +
300D VAL 4.8 0.2 + - - -
301D GLN 5.3 1.1 + - - +
303D GLY 3.8 24.5 - - - +
304D GLY* 4.2 25.6 - - - +
306D SER* 4.2 15.5 + - - -
328D SER 2.9 1.9 + - - +
329D LYS* 1.3 77.4 - - + +
331D MET* 1.3 62.8 + - - +
332D MET* 3.1 5.7 + - - +
364D LEU* 4.4 3.6 - - - +
367D VAL* 4.9 0.2 - - - +
447D ARG* 5.2 1.6 + - - +
448D PRO 3.9 19.2 + - - -
450D LEU* 4.4 15.9 - - + -
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Residues in contact with MET 331 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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119D LEU* 3.4 26.5 - - + -
122D VAL* 4.2 6.3 - - + -
303D GLY 5.4 1.1 - - - -
304D GLY* 4.5 9.4 - - - +
310D PHE* 3.6 39.9 - - + -
311D TRP* 3.9 17.0 - - + -
327D PHE* 3.7 22.4 - - + -
328D SER 2.9 13.1 + - - +
330D LYS* 1.3 78.5 - - + +
332D MET* 1.3 64.9 + - - +
333D THR 2.9 24.2 + - - +
364D LEU* 3.2 40.5 - - + +
368D ILE* 4.3 1.1 - - + -
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Residues in contact with MET 332 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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98C ILE 5.0 7.4 - - - +
100C ARG* 4.1 7.3 + - + -
354C TRP* 3.4 24.1 - - - -
74D SER 4.8 2.5 - - - +
76D PRO* 3.9 20.6 - - + -
84D LEU* 4.8 9.0 - - + -
134D ALA 4.8 0.5 - - - +
329D LYS 2.9 13.6 + - - +
330D LYS 3.7 11.2 - - - +
331D MET* 1.3 81.6 - - - +
333D THR* 1.3 56.6 + - - +
360D LYS* 3.7 38.0 - - + +
363D LEU* 3.8 34.3 - - + -
364D LEU* 4.1 19.1 - - + -
367D VAL* 4.6 10.5 - - + -
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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