Contacts of the helix formed by residues 348 - 354 (chain I) in PDB entry 3LUE
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 348 (chain I).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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22I ALA* 4.3 2.7 - - - -
23I GLY* 3.8 22.4 + - - -
344I SER 2.8 18.7 + - - -
345I ILE* 2.6 23.4 + - - -
346I LEU 2.8 2.4 + - - -
347I ALA* 1.3 73.9 - - - +
349I LEU* 1.3 66.5 + - - +
350I SER* 3.7 1.2 + - - -
95P ASP* 4.0 16.0 + - - +
101P PHE* 5.4 0.3 - - - -
102P HIS* 5.2 6.7 - - - -
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Residues in contact with LEU 349 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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49G GLN* 3.6 30.5 - - + +
143I TYR* 4.0 9.4 - - + +
345I ILE* 3.2 21.5 + - + +
346I LEU* 3.0 23.2 + - + +
347I ALA 4.7 0.7 - - - +
348I SER* 1.3 79.5 - - - +
350I SER* 1.3 62.4 + - - +
351I THR* 3.0 19.7 - - - +
352I PHE* 3.1 18.3 + - - +
353I GLN* 4.1 1.9 + - - +
95P ASP* 4.6 7.4 - - - +
101P PHE 4.4 7.2 - - - +
102P HIS* 6.0 0.2 - - - -
104P ILE* 6.3 0.4 - - + -
105P ALA* 3.1 37.2 - - + -
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Residues in contact with SER 350 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
348I SER 3.7 2.4 + - - -
349I LEU* 1.3 70.9 - - - +
351I THR* 1.3 61.1 + - - +
352I PHE 3.4 0.5 + - - -
353I GLN* 3.5 8.4 + - - +
354I GLN* 3.1 23.1 + - - -
95P ASP* 5.3 2.2 + - - -
109P LYS* 4.9 16.5 - - - +
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Residues in contact with THR 351 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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41G GLN* 2.7 49.5 + - + +
49G GLN* 4.2 10.2 + - - +
346I LEU* 6.0 0.9 - - + -
349I LEU* 3.8 20.7 - - + +
350I SER* 1.3 76.1 + - - +
352I PHE* 1.3 63.2 + - + +
354I GLN* 3.0 27.7 + - - +
355I MET* 4.0 2.2 - - + +
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Residues in contact with PHE 352 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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104I LEU* 3.5 15.5 - - + -
133I TYR* 3.5 32.1 - + + -
346I LEU* 3.3 42.0 - - + +
347I ALA* 3.7 10.5 - - - -
349I LEU* 3.1 14.5 + - + +
351I THR* 1.3 73.5 - - - +
353I GLN* 1.3 64.2 + - - +
354I GLN 2.9 6.7 + - - -
355I MET* 2.9 57.0 + - + +
356I TRP* 3.2 53.3 + + - -
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Residues in contact with GLN 353 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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102I PRO* 4.2 13.1 - - - +
131I ALA* 4.9 5.7 - - - +
349I LEU 4.1 2.0 + - - +
350I SER* 3.5 8.3 + - - +
351I THR 3.3 1.2 + - - -
352I PHE* 1.3 76.1 - - - +
354I GLN* 1.3 72.6 + - - +
355I MET 3.3 3.5 + - - -
356I TRP* 2.9 56.4 + - - +
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Residues in contact with GLN 354 (chain I).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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350I SER 3.1 23.4 + - - +
351I THR* 3.0 20.2 - - - +
352I PHE 2.9 0.2 - - - -
353I GLN* 1.3 89.7 - - - +
355I MET* 1.3 69.7 + - - +
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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