Contacts of the helix formed by residues 188 - 194 (chain C) in PDB entry 5HMG
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 ASN 188 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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187C THR* 1.3 72.4 - - - +
189C GLN* 1.3 62.7 + - - +
191C GLN* 3.1 6.8 + - - +
192C THR* 3.0 29.6 + - + +
198C ALA* 4.4 11.3 - - - +
217C ILE* 3.6 27.5 - - - +
201E ARG* 4.3 22.2 - - - +
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Residues in contact with GLN 189 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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187C THR* 4.0 11.1 + - - +
188C ASN* 1.3 79.1 - - - +
190C GLU* 1.3 61.4 + - - +
192C THR* 3.0 7.0 + - - -
193C SER* 2.9 47.7 + - - -
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Residues in contact with GLU 190 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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183C HIS* 3.3 4.3 - - - -
185C PRO* 3.2 15.4 - - + +
186C SER* 3.0 32.6 + - - -
187C THR* 2.9 23.0 + - - +
189C GLN* 1.3 79.2 + - - +
191C GLN* 1.3 67.2 + - - +
193C SER* 3.4 4.8 + - - -
194C LEU* 3.0 34.2 + - + +
228C SER* 3.2 10.0 + - - -
329C SIA 2.8 41.8 + - - +
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Residues in contact with GLN 191 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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185C PRO* 3.5 18.7 - - + +
187C THR 3.1 10.4 + - - +
188C ASN* 3.3 10.3 - - - +
190C GLU* 1.3 76.1 - - - +
192C THR* 1.3 60.0 + - + +
195C TYR* 2.8 39.6 + - - +
197C GLN* 3.0 20.2 + - - +
198C ALA* 3.3 27.1 - - - +
200C GLY* 3.8 11.6 + - - +
215C PRO* 4.2 2.3 - - - +
217C ILE* 3.9 19.1 - - + +
250C ASN* 2.9 41.1 + - - +
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Residues in contact with THR 192 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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156C LYS* 4.7 0.9 + - - -
188C ASN* 3.0 19.3 + - + +
189C GLN* 3.0 16.3 + - - -
191C GLN* 1.3 75.8 - - + +
193C SER* 1.3 65.6 + - - +
196C VAL* 2.9 44.5 + - - +
197C GLN 4.0 7.2 - - - +
198C ALA* 4.2 14.6 - - + +
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Residues in contact with SER 193 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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156C LYS* 3.1 30.4 + - - +
189C GLN* 2.9 38.1 + - - -
190C GLU* 3.5 6.7 - - - -
192C THR* 1.3 76.4 + - - +
194C LEU* 1.3 63.6 + - - +
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Residues in contact with LEU 194 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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153C TRP* 4.1 11.4 - - + -
155C THR* 3.9 11.8 - - + -
156C LYS* 3.1 32.6 + - - +
183C HIS* 3.8 17.9 - - + -
190C GLU* 3.0 21.0 + - + +
193C SER* 1.3 84.2 - - - +
195C TYR* 1.3 98.2 + - + +
196C VAL 3.5 0.2 - - - -
329C SIA 3.3 43.1 - - - +
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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