Contacts of the strand formed by residues 336 - 339 (chain r) in PDB entry 6QX2
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 ILE 336 (chain r).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35r LEU* 3.9 25.2 - - + +
36r PRO* 4.1 5.7 - - - +
179r MET* 4.2 12.1 - - + -
180r ALA 3.3 26.5 - - - +
181r THR* 3.1 20.8 - - - -
183r ILE* 4.2 5.0 - - - +
334r ASN* 3.0 22.9 + - - +
335r MET* 1.3 73.0 - - - +
337r ALA* 1.3 62.7 + - - +
343r PRO* 4.1 13.7 - - + -
344r LYS 3.4 8.3 - - - +
345r LEU* 3.8 24.7 - - + +
701s JK8 3.9 25.6 - - + -
2018w C 5.9 0.9 - - - +
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Residues in contact with ALA 337 (chain r).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35r LEU* 5.1 2.0 - - - -
36r PRO* 3.4 21.3 - - + +
38r VAL* 4.2 17.7 - - + +
167r LEU* 4.2 21.3 - - + -
183r ILE* 4.9 1.3 - - + -
335r MET 4.1 1.2 + - - -
336r ILE* 1.3 74.8 - - - +
338r LEU* 1.3 62.8 - - - +
339r VAL* 3.7 3.1 + - - +
343r PRO* 3.5 3.1 - - - +
344r LYS* 2.9 32.4 + - - +
346r ILE* 4.3 8.5 - - + +
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Residues in contact with LEU 338 (chain r).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
30r ILE 3.7 18.8 - - - +
31r VAL* 3.8 26.9 - - + +
35r LEU* 3.6 25.6 - - + +
36r PRO 3.0 17.2 + - - +
37r ASP* 3.9 17.5 - - + +
38r VAL* 3.1 25.6 + - - +
44r PRO* 6.1 1.6 - - + -
337r ALA* 1.3 69.9 - - - +
339r VAL* 1.3 58.6 + - - +
340r ASN 4.3 0.8 + - - -
341r GLY* 4.0 19.1 - - - +
342r ARG 3.3 8.5 - - - +
343r PRO* 3.7 29.6 - - + -
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Residues in contact with VAL 339 (chain r).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38r VAL* 4.1 15.5 - - + -
337r ALA 4.1 4.3 - - - +
338r LEU* 1.3 76.3 - - - +
340r ASN* 1.3 83.5 + - - +
342r ARG* 2.8 28.9 + - - +
344r LYS* 4.0 25.1 - - + -
346r ILE* 4.2 9.9 - - + -
354r HIS* 3.4 47.3 - - + +
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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