Contacts of the strand formed by residues 48 - 51 (chain A) in PDB entry 2V5Y
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 PHE 48 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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9A PHE* 4.0 9.7 - - - +
30A GLN* 3.7 4.5 - - - +
31A VAL* 2.9 63.4 + - + +
33A THR* 4.1 6.1 - - + -
43A MET* 4.6 5.4 - - + -
44A PRO* 3.3 42.2 - - + -
45A SER 3.8 9.6 - - - -
46A GLY* 3.7 12.1 - - - -
47A SER* 1.3 80.8 - - - +
49A MET* 1.3 71.0 + - - +
50A LEU* 4.6 13.5 - - + -
120A TRP* 4.0 18.6 - + + -
151A ALA* 4.5 6.3 - - + -
152A ILE 3.1 16.8 - - - +
153A ASP* 3.8 11.2 - - + +
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Residues in contact with MET 49 (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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9A PHE* 3.2 31.4 - - + -
13A TYR* 3.3 43.3 - - + -
20A GLN* 4.2 2.7 - - - +
28A TRP* 3.6 38.6 - - + -
29A GLU 3.1 25.6 - - - +
30A GLN* 3.5 15.0 - - - -
48A PHE* 1.3 73.7 - - - +
50A LEU* 1.3 58.7 + - - +
64A LEU* 3.8 16.8 - - + -
151A ALA* 3.4 5.5 - - - +
152A ILE* 2.8 36.5 + - + +
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Residues in contact with LEU 50 (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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28A TRP* 3.5 4.4 - - - -
29A GLU* 2.6 61.1 + - + +
31A VAL* 4.1 21.8 - - + -
43A MET* 3.7 28.5 - - + -
44A PRO* 6.0 2.7 - - + -
48A PHE* 4.1 10.4 - - + -
49A MET* 1.3 73.9 - - - +
51A VAL* 1.3 68.3 + - - +
52A ASN* 4.1 2.0 - - + +
149A TYR* 3.9 29.4 - - + -
150A LEU 3.5 17.9 - - - +
151A ALA* 3.9 15.7 - - + -
1572A NAG 4.4 5.8 - - + +
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Residues in contact with VAL 51 (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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26A PHE* 3.5 33.7 - - + -
27A ASN 5.6 0.4 - - - -
28A TRP* 3.2 51.1 - - + +
50A LEU* 1.3 74.9 - - - +
52A ASN* 1.3 60.5 + - - +
53A ALA* 3.5 12.8 + - + +
62A ALA* 5.0 0.9 - - + -
141A VAL* 3.7 28.9 - - + -
149A TYR* 3.6 2.4 - - - -
150A LEU* 2.8 39.1 + - + +
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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