Contacts of the helix formed by residues 47 - 52 (chain J) in PDB entry 6RQT
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 ARG 47 (chain J).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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973B ALA 3.3 22.4 - - - +
974B LEU* 3.2 27.2 + - - +
36J LEU* 3.6 31.0 - - + +
37J SER* 3.4 23.4 + - - -
41J LEU* 2.8 43.6 + - - +
42J LYS 4.1 4.4 + - - -
43J ARG 2.7 25.3 + - - +
44J TYR* 3.5 13.2 + - + +
45J CYS 3.4 1.6 - - - -
46J CYS* 1.3 75.9 - - - +
48J ARG* 1.3 62.6 + - - +
49J MET 3.6 0.2 + - - -
50J ILE* 3.9 1.8 + - - -
51J LEU* 3.2 22.1 + - + +
169N GLU* 2.9 29.9 + - - +
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Residues in contact with ARG 48 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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748B GLN* 4.4 4.0 - - - +
751B ILE* 5.3 4.3 - - + -
770B ASN* 3.8 37.3 + - + +
771B ALA* 4.0 12.1 - - - +
772B VAL* 4.3 1.8 - - - +
946B ASP* 4.9 4.4 + - - -
973B ALA* 4.9 14.7 + - + +
1030B VAL* 4.5 11.9 - - - +
7J CYS* 4.1 4.0 - - - -
8J PHE* 3.9 28.1 - - - +
9J SER* 4.8 4.4 + - - +
44J TYR 4.0 5.3 + - - -
45J CYS* 2.4 52.8 + - - +
47J ARG* 1.3 75.5 - - - +
49J MET* 1.3 69.9 + - + +
50J ILE 2.8 6.4 + - - -
51J LEU* 2.8 10.5 + - + -
52J THR* 2.5 50.7 + - - +
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Residues in contact with MET 49 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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748B GLN* 3.5 28.7 - - - +
3J VAL* 5.3 4.1 - - + +
4J PRO* 4.4 20.7 - - + +
7J CYS* 3.5 30.1 - - + -
8J PHE* 3.5 52.3 - - + -
14J VAL* 4.0 16.4 - - + +
18J TRP* 5.3 0.2 - - - -
45J CYS 4.2 1.8 - - - +
46J CYS 3.0 14.5 + - - +
48J ARG* 1.3 95.7 - - + +
50J ILE* 1.3 61.8 + - + +
53J HIS* 3.3 23.6 + - - +
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Residues in contact with ILE 50 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21B ARG* 5.3 2.6 + - - -
3J VAL* 5.8 0.7 - - + -
14J VAL* 3.7 42.8 - - + +
17J LYS* 4.7 10.1 - - + +
18J TRP* 3.9 35.2 - - + +
21J TYR* 3.5 47.2 - - + -
36J LEU* 3.8 23.3 - - + -
41J LEU* 5.4 4.3 - - + -
46J CYS 4.3 3.8 + - - +
47J ARG* 3.9 2.2 + - - +
49J MET* 1.3 85.2 - - + +
51J LEU* 1.3 63.0 + - - +
52J THR 3.2 1.9 + - - -
53J HIS* 3.8 9.6 + - - +
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Residues in contact with LEU 51 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16B PHE* 3.2 44.6 - - + -
21B ARG* 4.8 2.0 + - - -
751B ILE* 4.6 11.2 - - + -
972B GLY 4.0 12.3 - - - +
973B ALA* 5.0 4.3 - - + +
976B GLY* 3.3 39.0 - - - +
21J TYR* 5.2 4.7 - - + +
32J GLU* 3.4 37.2 - - + +
36J LEU* 5.0 8.8 - - + +
47J ARG* 3.2 21.5 + - + +
48J ARG* 2.8 8.9 + - - +
50J ILE* 1.3 73.5 - - - +
52J THR* 1.3 65.7 + - - +
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Residues in contact with THR 52 (chain J).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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21B ARG* 4.7 3.3 + - - -
748B GLN* 3.4 24.5 - - + +
749B THR* 3.2 56.5 + - + +
751B ILE* 4.4 5.7 - - + +
770B ASN* 3.5 8.6 + - - +
48J ARG* 2.5 38.0 + - - +
51J LEU* 1.3 83.1 - - - +
53J HIS* 1.3 61.6 - - - +
54J VAL* 3.5 8.5 + - - +
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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