Contacts of the helix formed by residues 383 - 388 (chain A) in PDB entry 2G1T
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 GLY 383 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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290A MET* 3.2 14.6 - - - +
359A PHE* 3.5 3.5 - - - -
360A ILE 3.8 0.4 - - - -
361A HIS 2.9 22.2 + - - -
381A ASP 3.5 0.2 + - - -
382A PHE* 1.3 71.8 - - - +
384A LEU* 1.3 64.8 + - - +
385A SER* 3.1 3.4 - - - -
386A ARG* 2.8 49.4 + - - +
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Residues in contact with LEU 384 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
253A TYR* 3.5 36.5 - - + -
271A LYS* 3.3 34.8 - - + +
273A LEU* 4.3 11.9 - - + -
290A MET* 4.1 6.7 - - + -
313A ILE* 3.8 27.8 - - + -
361A HIS 4.6 0.8 + - - -
363A ASP* 4.6 1.3 + - - +
381A ASP* 3.5 31.7 + - + +
382A PHE 3.1 4.6 + - - +
383A GLY* 1.3 76.5 - - - +
385A SER* 1.3 62.4 + - - +
387A LEU* 2.9 22.2 + - + +
388A MET* 4.0 3.1 + - + -
1101E 112 5.2 0.2 - - - +
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Residues in contact with SER 385 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
253A TYR* 3.4 31.2 + - - -
362A ARG* 3.6 45.7 + - - +
363A ASP* 4.3 3.2 + - - -
383A GLY 4.3 2.4 + - - -
384A LEU* 1.3 78.6 - - - +
386A ARG* 1.3 65.4 + - - +
387A LEU 3.2 0.7 - - - -
388A MET* 3.0 24.7 + - - +
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Residues in contact with ARG 386 (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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278A MET* 3.2 22.6 - - - +
286A GLU* 3.1 36.9 + - - +
359A PHE* 3.3 35.2 - - - +
360A ILE* 2.9 48.1 + - - +
361A HIS 4.8 1.4 + - - -
362A ARG* 4.9 5.9 - - - +
383A GLY* 2.8 19.3 + - - +
385A SER* 1.3 82.2 + - - +
387A LEU* 1.3 60.1 + - - +
388A MET 3.4 2.0 - - - -
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Residues in contact with LEU 387 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
273A LEU* 4.6 1.5 - - + +
276A ASP* 4.2 2.6 - - - +
278A MET* 3.3 17.9 - - - +
283A PHE* 3.6 44.5 - - + +
286A GLU* 3.5 34.5 - - + -
287A ALA* 4.1 8.5 - - + +
290A MET* 3.6 32.1 - - + -
313A ILE* 3.7 28.9 - - + -
384A LEU* 2.9 18.4 + - + +
386A ARG* 1.3 77.7 - - - +
388A MET* 1.3 69.0 + - + +
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Residues in contact with MET 388 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
252A GLN 5.2 1.1 - - - +
253A TYR* 3.8 49.6 - - + +
273A LEU* 4.0 27.1 - - + -
274A LYS* 3.7 29.6 - - + +
275A GLU 4.8 0.9 - - - +
276A ASP* 3.6 26.7 - - + +
278A MET* 4.5 3.4 - - - -
384A LEU* 4.5 3.1 - - + +
385A SER 3.0 18.9 + - - +
386A ARG* 3.4 2.0 - - - -
387A LEU* 1.3 90.6 - - + +
389A THR* 1.3 62.6 + - - +
390A GLY* 4.3 9.6 - - - +
392A THR* 4.8 1.2 + - - -
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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
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
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