Contacts of the helix formed by residues 209 - 214 (chain M) in PDB entry 5M64
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 PRO 209 (chain M).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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205M GLU* 3.3 16.1 - - - +
207M ILE 4.2 2.2 - - - +
208M ILE* 1.3 88.2 - - + +
210M LYS* 1.3 60.8 + - - +
211M LYS* 4.2 8.3 - - + +
212M GLU* 3.2 39.9 + - + +
213M LEU* 2.8 27.2 + - - +
301M ARG* 4.0 21.3 - - - +
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Residues in contact with LYS 210 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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204M ILE* 5.5 4.0 - - - +
205M GLU* 3.0 39.1 + - - +
209M PRO* 1.3 74.2 - - - +
211M LYS* 1.3 72.9 + - + +
212M GLU 3.3 0.5 + - - -
213M LEU* 4.5 15.3 - - + +
214M GLN* 3.3 41.2 + - + +
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Residues in contact with LYS 211 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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209M PRO* 3.2 7.7 - - + +
210M LYS* 1.3 87.7 - - + +
212M GLU* 1.3 63.1 + - + +
214M GLN* 4.7 10.6 + - - +
215M PHE* 4.0 12.3 - - - -
293M ILE* 3.4 20.2 - - + +
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Residues in contact with GLU 212 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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208M ILE* 3.6 16.2 - - + +
209M PRO* 3.2 28.1 + - + +
210M LYS 3.2 0.2 - - - -
211M LYS* 1.3 84.1 - - + +
213M LEU* 1.3 63.8 + - - +
214M GLN 3.2 2.7 - - - -
215M PHE* 3.4 13.0 + - - +
216M ILE* 3.9 4.2 - - - +
264M TYR* 5.8 1.7 - - - -
293M ILE* 3.5 31.1 - - + +
294M LEU* 3.5 35.5 - - + +
297M GLY* 3.2 26.0 - - - -
298M ILE* 5.7 0.5 - - - +
301M ARG* 3.6 12.0 + - - -
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Residues in contact with LEU 213 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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204M ILE* 3.8 31.6 - - + +
205M GLU* 4.8 6.1 - - - +
208M ILE* 3.4 26.9 - - + +
209M PRO 2.8 22.6 + - - +
210M LYS* 3.7 14.1 + - + +
212M GLU* 1.3 72.3 - - - +
214M GLN* 1.3 64.2 + - + +
215M PHE 3.2 0.7 + - - -
216M ILE* 3.6 34.6 + - + +
260M GLN* 4.1 23.6 - - + +
261M LEU* 5.5 4.5 - - + -
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Residues in contact with GLN 214 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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210M LYS* 3.3 32.9 + - + +
211M LYS* 4.8 11.8 + - - +
212M GLU 3.2 1.2 - - - -
213M LEU* 1.3 78.2 - - + +
215M PHE* 1.3 61.1 + - + +
216M ILE 3.4 2.2 - - - -
217M ARG* 2.7 35.8 + - - +
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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