Contacts of the helix formed by residues 178 - 185 (chain Q) in PDB entry 2GLJ
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 LEU 178 (chain Q).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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176Q ASP 3.4 3.0 + - - -
177Q ILE* 1.3 87.2 - - + +
179Q VAL* 1.3 65.9 + - - +
180Q HIS* 3.0 37.5 - - + +
181Q LEU* 3.0 28.5 + - + +
182Q ALA* 3.0 8.8 + - - +
137T LYS* 5.4 0.2 - - - -
345T ALA* 3.5 33.9 - - + -
355T MET* 5.6 4.9 - - + -
408T LEU* 4.3 7.0 - - + -
439T ASN* 4.9 2.7 - - - +
440T MSE 4.0 41.5 - - + +
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Residues in contact with VAL 179 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
177Q ILE 3.7 0.8 + - - -
178Q LEU* 1.3 72.0 - - - +
180Q HIS* 1.3 85.7 + - + +
181Q LEU 3.1 1.0 + - - -
182Q ALA* 3.2 18.9 + - - +
183Q SER* 4.3 3.6 + - - -
134T GLY 4.1 16.8 - - - +
135T ILE* 3.4 21.3 - - - +
136T LYS* 3.6 17.6 - - + +
137T LYS* 3.3 30.7 - - + +
440T MSE 4.9 3.2 + - - +
441T HIS* 4.4 12.8 - - + +
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Residues in contact with HIS 180 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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178Q LEU* 3.0 28.6 - - + -
179Q VAL* 1.3 88.9 - - + +
181Q LEU* 1.3 71.0 + - + +
183Q SER* 5.1 4.2 + - - -
408T LEU* 4.4 11.4 - - + -
414T GLY* 3.0 23.2 - - - -
415T GLY 3.9 14.4 + - - +
440T MSE 3.2 32.1 - - + +
441T HIS* 3.5 26.0 + + - -
6039T MN 4.5 2.9 - - - -
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Residues in contact with LEU 181 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
177Q ILE* 4.3 6.7 - - + +
178Q LEU* 3.0 22.9 + - + -
180Q HIS* 1.3 95.7 - - + +
182Q ALA* 1.3 58.7 + - - +
183Q SER* 3.1 9.7 + - - +
184Q GLU* 4.3 5.0 + - - +
345T ALA* 5.7 0.2 - - + -
354T VAL* 3.4 47.2 - - + +
355T MET* 4.2 6.7 - - + -
408T LEU* 3.8 22.9 - - + +
409T GLY* 3.6 27.4 - - - +
413T GLN* 3.8 13.1 + - - +
414T GLY* 3.8 20.6 - - - +
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Residues in contact with ALA 182 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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177Q ILE* 4.4 5.6 - - + +
178Q LEU 3.0 10.4 + - - +
179Q VAL* 3.2 11.4 + - - +
181Q LEU* 1.3 75.8 - - - +
183Q SER* 1.3 65.1 + - - +
184Q GLU 3.3 2.0 - - - -
185Q GLN* 2.9 34.0 + - - +
137T LYS* 3.3 37.2 - - + +
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Residues in contact with SER 183 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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179Q VAL 4.3 3.4 + - - -
180Q HIS 5.3 3.4 - - - -
181Q LEU* 3.1 5.3 - - - -
182Q ALA* 1.3 78.3 - - - +
184Q GLU* 1.3 62.9 + - - +
185Q GLN 3.1 5.9 + - - -
186Q LEU* 3.9 16.3 - - - +
413T GLN* 5.1 14.1 - - - -
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Residues in contact with GLU 184 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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181Q LEU 4.3 5.6 + - - +
182Q ALA 3.3 0.6 - - - -
183Q SER* 1.3 78.7 + - - +
185Q GLN* 1.3 56.8 + - - +
186Q LEU* 3.3 16.1 + - - +
187Q GLU* 4.7 1.2 + - - +
192Q LYS* 5.1 4.7 - - - +
353T ASN 5.5 2.1 - - - +
354T VAL* 6.5 0.4 - - + -
413T GLN* 3.9 23.6 - - - +
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Residues in contact with GLN 185 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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176Q ASP* 3.7 7.7 + - - -
177Q ILE* 3.3 23.4 - - + +
182Q ALA* 2.9 20.5 + - - +
184Q GLU* 1.3 76.4 - - - +
186Q LEU* 1.3 58.3 + - - +
192Q LYS* 2.9 50.3 + - + +
193Q VAL* 3.4 18.2 - - - +
137T LYS* 2.7 34.5 + - - -
189T LYS* 4.1 14.4 - - + +
190T ALA* 4.8 3.5 + - - -
351T TYR* 4.5 4.9 + - - -
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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