Contacts of the strand formed by residues 49 - 52 (chain A) in PDB entry 2JI8
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 49 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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26A ASP* 3.0 18.1 + - - +
27A THR* 3.1 30.9 + - + +
28A MET 3.0 15.5 + - - -
43A TRP* 2.8 22.2 + - - -
44A GLN* 5.5 0.2 - - - +
47A GLY 5.9 0.2 - - - +
48A GLN* 1.3 72.8 - - - +
50A PHE* 1.3 58.9 + - - +
51A TYR* 3.0 34.7 + - + -
440A ALA* 3.0 38.1 + - - +
441A VAL* 4.4 6.7 - - - +
494B VAL* 6.4 2.0 - - - -
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Residues in contact with PHE 50 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28A MET* 3.5 35.0 - - + -
30A GLY* 3.5 27.8 - - - -
31A VAL 4.2 1.1 - - - -
32A VAL* 3.9 19.1 - - + -
40A ALA* 4.2 9.9 - - + +
43A TRP* 4.2 5.6 - + + -
44A GLN* 3.7 36.5 + - + +
48A GLN 3.8 2.4 + - - -
49A ARG* 1.3 73.2 - - - +
51A TYR* 1.3 69.9 + - - +
52A SER* 3.4 26.1 + - - -
77A LEU* 3.7 33.2 - - + -
468A TYR* 3.6 15.9 + - - -
497B CYS* 3.8 10.7 - - + +
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Residues in contact with TYR 51 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27A THR* 3.7 20.6 - - + -
28A MET 3.0 6.7 + - - -
29A TYR* 3.7 21.1 - + + -
30A GLY 2.8 27.9 + - - -
49A ARG* 3.0 40.4 + - + -
50A PHE* 1.3 75.7 - - - +
52A SER* 1.3 59.8 + - - +
53A PHE* 3.1 23.6 - - + -
436A VAL* 4.2 12.8 - - + -
440A ALA* 3.3 27.2 - - + +
468A TYR* 3.7 44.4 - + + -
470A LEU* 4.9 8.9 - - + +
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Residues in contact with SER 52 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
30A GLY 3.3 6.5 - - - -
31A VAL* 5.4 2.2 - - - -
32A VAL* 4.6 3.4 + - - +
50A PHE* 3.4 9.9 + - - -
51A TYR* 1.3 73.0 - - - +
53A PHE* 1.3 62.8 - - - +
464A THR* 3.4 12.0 - - - +
467A ARG* 3.2 26.9 + - - -
468A TYR* 2.9 14.7 + - - -
482B ILE* 6.1 2.0 - - - -
497B CYS* 2.7 46.6 + - - +
499B ARG 5.4 0.2 - - - -
500B LEU* 6.3 0.9 - - - -
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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
------------------------------------------------------------
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