Contacts of the strand formed by residues 502 - 506 (chain A) in PDB entry 5IL2
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 VAL 502 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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456A ILE* 3.4 15.9 - - + +
458A VAL* 3.9 25.8 - - + -
500A CYS* 3.2 7.8 - - + +
501A ASP* 1.3 85.7 - - - +
503A ILE* 1.3 68.9 + - - +
504A VAL* 4.2 7.9 - - + -
120B CYS* 4.9 2.1 - - - -
130B PRO* 3.5 22.7 - - - +
131B GLN* 3.4 28.9 - - + +
262B ILE* 4.1 13.9 - - + -
284B THR* 3.5 17.9 - - - +
285B LYS* 4.2 10.5 - - + -
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Residues in contact with ILE 503 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
431A TRP* 4.8 7.0 - - + -
455A ILE* 3.8 20.9 - - + -
456A ILE 2.9 9.7 + - - +
457A TRP* 3.5 9.1 - - + -
458A VAL* 2.7 35.2 + - - +
502A VAL* 1.3 77.1 - - - +
504A VAL* 1.3 66.3 + - - +
505A ALA* 4.1 0.4 - - + -
514A PRO* 3.9 31.6 - - + -
516A GLU* 4.1 18.2 - - + -
517A ILE* 4.0 17.5 - - + +
520A MET* 3.6 34.1 - - + -
120B CYS* 4.1 8.3 - - - -
130B PRO* 4.9 0.2 - - - -
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Residues in contact with VAL 504 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
458A VAL* 3.8 5.8 - - + +
460A THR* 3.9 26.0 - - + +
464A GLN* 6.2 2.7 - - + -
502A VAL* 4.2 7.0 - - + -
503A ILE* 1.3 79.3 - - - +
505A ALA* 1.3 67.7 + - - +
516A GLU* 4.5 5.0 - - - +
117B ASN 5.3 0.2 - - - +
119B TYR* 3.8 30.3 - - + +
120B CYS* 5.6 0.6 - - - -
130B PRO* 3.6 42.6 - - + +
131B GLN* 3.8 4.5 - - - +
133B PHE 5.3 2.2 - - - -
134B ILE* 3.8 28.7 - - + +
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Residues in contact with ALA 505 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
457A TRP* 3.0 29.0 + - + +
458A VAL 3.4 6.1 + - - +
460A THR* 3.3 19.5 + - - -
503A ILE* 4.5 0.9 - - + -
504A VAL* 1.3 77.8 - - - +
506A GLU* 1.3 66.4 + - - +
507A VAL 3.6 0.2 + - - -
514A PRO* 4.2 15.9 - - + -
516A GLU* 3.8 20.6 - - - +
119B TYR* 5.8 0.4 - - - -
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Residues in contact with GLU 506 (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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457A TRP* 4.0 6.5 - - - -
460A THR* 3.3 21.3 + - - +
461A ASN* 3.7 16.6 - - - +
462A GLN* 3.3 34.4 + - - +
464A GLN* 5.6 1.7 + - - -
505A ALA* 1.3 78.7 - - - +
507A VAL* 1.3 74.4 + - - +
508A ARG 3.7 2.1 + - - -
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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