Contacts of the strand formed by residues 51 - 54 (chain C) in PDB entry 1PV2
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 51 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50C LYS* 1.3 75.2 - - - +
52C LEU* 1.3 64.4 + - - +
53C VAL* 4.1 8.5 - - + -
82C LEU* 4.3 6.7 - - + -
85C LEU* 3.6 35.2 - - + -
90C PHE* 3.4 38.4 - - + +
91C GLU 2.8 10.7 + - - +
92C PHE* 4.0 5.6 - - + -
93C GLU* 2.8 31.9 + - - +
146C TYR* 4.2 2.2 - - - -
148C ALA* 3.9 24.7 - - + +
150C PHE* 3.9 28.5 - - + +
182C ILE* 5.5 0.4 - - + -
277C MET* 4.5 5.4 - - + -
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Residues in contact with LEU 52 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50C LYS 4.0 0.2 + - - -
51C ILE* 1.3 73.1 - - - +
53C VAL* 1.3 63.3 + - - +
54C ILE* 3.8 5.7 + - + -
93C GLU* 4.1 10.5 - - + +
94C VAL 4.8 0.4 - - - -
95C ALA* 4.2 22.4 - - + -
131C LYS* 6.5 0.7 - - + -
133C LEU* 4.6 12.8 - - + -
136C VAL* 4.1 20.6 - - + -
140C LEU* 5.8 4.0 - - + -
146C TYR* 3.6 39.9 - - + +
148C ALA 2.9 16.3 + - - +
149C ILE* 3.3 25.3 - - + +
150C PHE 2.6 32.0 + - - +
170C ALA* 5.3 2.2 - - + -
173C TRP* 6.4 0.4 - - + -
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Residues in contact with VAL 53 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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51C ILE* 4.1 3.8 - - + -
52C LEU* 1.3 74.5 - - - +
54C ILE* 1.3 64.4 + - - +
55C ALA* 3.6 4.6 + - + +
82C LEU* 3.8 35.4 - - + -
92C PHE* 4.4 4.9 - - + -
93C GLU 2.7 20.5 + - - +
94C VAL* 3.4 14.7 - - + -
95C ALA* 2.8 33.6 + - - +
127C PHE* 4.7 9.6 - - + -
150C PHE* 3.2 20.6 - - + +
152C PRO* 3.9 22.4 - - + -
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Residues in contact with ILE 54 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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52C LEU* 4.5 8.1 - - + +
53C VAL* 1.3 72.8 - - - +
55C ALA* 1.3 61.7 + - - +
73C ASN* 5.2 0.5 + - - -
95C ALA 3.4 7.2 - - - +
96C THR* 5.6 0.2 - - - -
97C ILE* 5.4 1.3 - - + -
133C LEU* 3.6 45.1 - - + -
149C ILE* 4.0 26.0 - - + -
150C PHE 2.8 9.0 + - - +
151C VAL* 4.0 18.8 - - + +
152C PRO* 3.3 18.5 - - - +
161C LEU* 4.0 16.4 - - + +
167C VAL* 4.0 20.2 - - + +
170C ALA* 4.2 14.6 - - + -
171C LEU* 6.2 1.1 - - + -
190C ALA* 6.4 0.4 - - + -
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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