Contacts of the helix formed by residues 341 - 345 (chain A) in PDB entry 1JLH
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 341 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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339A PRO* 3.0 3.4 + - + +
340A TYR* 1.3 79.7 - - - +
342A GLN* 1.3 59.7 + - - +
343A TYR* 3.1 22.6 + - - +
344A LEU* 2.9 71.5 + - + +
382A PRO* 3.6 10.0 - - - +
383A GLY* 4.3 3.2 + - - +
408A PRO* 3.6 26.0 - - + +
412A GLN* 5.9 1.7 - - - +
421A HIS* 6.0 0.3 - - - -
424A LEU* 6.1 0.2 - - - +
481A LEU* 5.0 7.3 - - - +
185B ASN* 4.6 0.4 - - - +
187B ASP* 3.4 10.1 - - - +
189B THR* 5.1 3.5 - - - +
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Residues in contact with GLN 342 (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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341A ASP* 1.3 69.8 - - - +
343A TYR* 1.3 64.8 + - - +
345A HIS* 3.1 44.8 + - - +
382A PRO* 4.4 2.0 - - - +
385A ASN* 3.2 19.2 + - - +
185B ASN* 3.0 29.9 + - - +
187B ASP* 2.7 16.3 + - + +
189B THR* 3.4 20.6 - - - +
190B HIS* 3.8 39.0 + - + +
193B LYS* 4.3 12.7 - - - +
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Residues in contact with TYR 343 (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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165A MET 4.6 0.7 - - - +
168A GLU* 3.4 18.3 - - - +
169A ALA* 3.2 42.4 + - + +
171A LYS* 3.7 20.0 - - + +
172A PRO* 3.2 32.2 - - + +
341A ASP* 3.1 16.1 + - - +
342A GLN* 1.3 79.4 - - - +
344A LEU* 1.3 55.2 + - + +
345A HIS* 3.2 9.8 + + - -
346A ARG 4.8 0.2 + - - -
412A GLN* 4.0 14.4 - - + -
413A HIS* 2.7 30.7 + + - -
481A LEU* 5.7 2.0 - - + -
189B THR* 3.8 27.1 + - + -
193B LYS* 3.9 31.7 - - + +
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Residues in contact with LEU 344 (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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165A MET* 5.1 2.9 - - - -
169A ALA* 3.5 27.4 - - + -
339A PRO* 3.8 27.0 - - + +
341A ASP* 2.9 39.1 + - + +
343A TYR* 1.3 76.5 - - - +
345A HIS* 1.3 54.6 + - - +
346A ARG 2.8 13.3 + - - -
347A PHE* 2.9 36.7 + - + +
348A ALA 4.6 0.5 + - - -
406A LEU* 5.8 1.3 - - + -
407A ILE* 6.3 0.2 - - - -
478A PHE* 4.5 14.8 - - + -
481A LEU* 4.3 20.0 - - + -
486A LEU* 4.2 17.7 - - + -
489A LEU* 5.7 2.0 - - + -
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Residues in contact with HIS 345 (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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168A GLU* 2.7 37.3 + - + +
341A ASP 3.7 0.6 + - - -
342A GLN* 3.1 38.6 + - - +
343A TYR* 3.2 12.2 - + - -
344A LEU* 1.3 76.0 - - - +
346A ARG* 1.3 95.1 + - + +
347A PHE 4.1 0.2 + - - -
348A ALA* 5.2 3.1 + - - +
349A ALA* 5.5 0.5 + - - +
381A GLU* 4.1 7.3 - - - +
382A PRO* 3.9 35.2 - - + +
193B LYS* 6.6 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