Contacts of the helix formed by residues 794 - 798 (chain A) in PDB entry 1MUK
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 794 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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278A PRO* 5.8 1.4 - - - +
369A MET* 3.2 29.3 - - + +
522A GLN* 4.7 4.8 + - - -
783A LYS 5.5 0.7 - - - +
785A TYR* 3.4 46.8 + - + -
792A ILE 3.4 1.0 + - - -
793A PRO* 1.3 70.1 - - - +
795A LEU* 1.3 62.2 + - - +
796A SER* 2.6 28.2 + - - -
797A ARG* 3.2 30.8 + - - +
798A HIS* 4.0 10.8 + - - -
831A ASP* 4.9 3.0 + - - -
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Residues in contact with LEU 795 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
239A LEU* 4.2 22.4 - - + +
243A ALA* 3.9 11.4 - - + -
366A ARG* 3.9 24.9 + - + +
369A MET 4.6 2.4 + - - -
370A ALA* 3.7 29.7 - - + +
793A PRO* 3.7 19.0 + - + +
794A ASN* 1.3 74.7 + - - +
796A SER* 1.3 61.0 + - - +
797A ARG 3.2 0.4 - - - -
798A HIS* 3.1 22.4 + - - +
799A PRO* 5.0 0.7 - - - +
831A ASP* 3.9 35.4 - - + +
833A LEU* 3.9 22.7 - - + -
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Residues in contact with SER 796 (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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239A LEU* 5.7 1.1 - - - -
369A MET 3.3 18.2 + - - -
370A ALA* 4.1 6.8 - - - +
372A THR* 3.3 32.9 - - - -
374A GLY* 3.4 24.1 - - - -
521A VAL* 3.6 3.5 - - - +
522A GLN* 2.9 22.8 + - - -
794A ASN* 2.6 22.4 + - - -
795A LEU* 1.3 78.2 - - - +
797A ARG* 1.3 58.1 + - - +
798A HIS 3.2 1.4 + - - -
799A PRO* 4.0 4.0 - - - +
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Residues in contact with ARG 797 (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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521A VAL* 4.0 35.1 + - + +
522A GLN* 4.4 22.7 + - - +
523A ARG* 5.9 1.0 - - - +
780A GLU* 5.2 1.0 + - - -
783A LYS* 3.7 45.1 - - - +
785A TYR* 2.8 33.8 + - - -
794A ASN* 3.2 28.0 + - - +
795A LEU 3.2 1.0 - - - -
796A SER* 1.3 80.4 + - - +
798A HIS* 1.3 74.9 + - + +
799A PRO* 3.3 10.1 - - - +
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Residues in contact with HIS 798 (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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239A LEU* 6.2 0.2 - - - +
561A SER 5.5 4.9 + - - -
563A VAL* 5.1 13.2 - - + -
794A ASN 4.0 11.6 + - - -
795A LEU 3.1 16.7 + - - +
797A ARG* 1.3 93.5 + - + +
799A PRO* 1.3 68.2 - - - +
800A ILE* 3.1 9.0 + - - +
827A ASN* 4.4 32.7 + - + +
831A ASP* 3.4 32.4 + - - +
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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