Contacts of the helix formed by residues 604 - 611 (chain A) in PDB entry 3C7N
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 MET 604 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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600A LYS* 3.7 24.8 + - + +
601A LEU* 3.0 28.7 + - + -
603A GLY* 1.3 69.6 - - - -
605A LEU* 1.3 64.3 + - - +
606A ASN 3.1 2.0 + - - -
607A LYS* 3.7 16.7 + - + +
608A ALA* 3.4 20.8 + - - +
630A GLU* 5.3 9.4 - - + +
631A LEU* 4.2 14.5 - - + +
634A LEU* 3.5 33.9 - - + -
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Residues in contact with LEU 605 (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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578A ILE* 3.4 40.4 - - + +
581A LEU* 3.8 26.2 - - + -
582A ARG* 3.5 40.2 - - + +
585A LEU* 5.2 2.2 - - + -
601A LEU* 3.9 18.8 - - + -
602A GLN* 3.7 19.5 - - - +
604A MET* 1.3 77.8 - - - +
606A ASN* 1.3 55.1 + - - +
608A ALA* 3.3 7.8 + - - +
609A GLU* 2.7 34.3 + - - +
631A LEU* 3.8 14.8 - - + -
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Residues in contact with ASN 606 (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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582A ARG* 3.1 27.9 - - - +
602A GLN* 3.1 12.2 + - - +
603A GLY* 3.2 24.7 + - - +
604A MET 3.1 1.0 - - - -
605A LEU* 1.3 75.1 - - - +
607A LYS* 1.3 64.8 + - + +
609A GLU* 3.1 19.0 - - + +
610A GLU* 3.3 15.6 + - - +
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Residues in contact with LYS 607 (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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603A GLY 3.4 25.5 + - - +
604A MET* 4.2 16.4 - - + +
605A LEU 3.5 0.2 - - - -
606A ASN* 1.3 74.2 - - + +
608A ALA* 1.3 54.2 + - - +
609A GLU 2.9 4.5 - - - -
610A GLU* 3.7 10.2 - - - +
611A TRP* 2.7 40.1 + - + +
627A LYS* 6.1 2.5 - - - +
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Residues in contact with ALA 608 (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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574A LEU* 4.6 3.8 - - + +
578A ILE* 3.2 14.4 - - + +
604A MET 3.4 15.7 + - - +
605A LEU 3.3 5.1 + - - +
607A LYS* 1.3 77.6 - - - +
609A GLU* 1.3 60.6 + - - +
611A TRP* 3.3 20.2 - - - +
612A LEU* 3.5 11.6 - - - +
627A LYS* 4.9 13.0 - - + +
631A LEU* 3.6 28.9 - - + -
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Residues in contact with GLU 609 (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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578A ILE* 3.6 23.7 - - - +
579A TYR* 4.0 13.8 + - - -
582A ARG* 3.8 21.8 + - - +
605A LEU 2.7 13.4 + - - +
606A ASN* 3.1 18.2 - - + +
607A LYS 2.9 0.6 - - - -
608A ALA* 1.3 75.4 - - - +
610A GLU* 1.3 62.4 + - + +
611A TRP 2.8 9.0 + - - -
612A LEU* 2.8 21.5 + - - +
613A TYR* 3.4 21.8 + - + -
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Residues in contact with GLU 610 (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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606A ASN 3.5 14.7 - - - +
607A LYS* 3.9 8.4 - - - +
609A GLU* 1.3 78.5 - - + +
611A TRP* 1.3 66.1 + - - +
612A LEU 3.1 0.4 - - - -
613A TYR* 3.1 30.4 + - + +
614A ASP* 3.8 13.2 - - - +
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Residues in contact with TRP 611 (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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574A LEU* 4.6 3.4 - - + -
607A LYS* 2.7 22.4 + - + +
608A ALA* 3.3 15.3 - - - +
610A GLU* 1.3 78.9 - - - +
612A LEU* 1.3 80.9 + - + +
613A TYR 2.9 7.1 + - - -
614A ASP* 5.4 0.2 - - - -
615A GLU 2.7 49.4 + - - +
616A GLY* 3.1 22.4 + - - -
619A SER* 3.5 21.3 - - - -
623A LYS* 3.9 25.1 - - + -
624A TYR* 3.6 27.8 - + - -
627A LYS* 3.4 46.6 - - + +
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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