Contacts of the strand formed by residues 516 - 520 (chain A) in PDB entry 2I91
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 MET 516 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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480A ALA* 4.1 24.0 - - + +
483A LEU* 3.8 12.6 - - + -
484A LYS* 5.2 4.5 - - - -
487A ARG* 3.7 8.5 - - - +
496A LEU* 3.1 31.9 - - + +
508A ILE 4.7 0.2 - - - +
509A ALA* 4.3 9.1 - - + +
510A ASP* 3.6 40.2 - - + +
511A PRO* 6.0 0.2 - - - +
513A ASP* 3.2 50.3 + - + +
514A ARG* 3.2 2.2 - - - +
515A GLY* 1.3 82.7 - - - +
517A LEU* 1.3 62.7 + - - +
533A PHE* 4.1 3.4 - - - -
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Residues in contact with LEU 517 (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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31A ASN* 5.6 1.1 - - - +
496A LEU 2.7 9.5 + - - -
497A ILE* 3.4 9.5 - - + -
498A VAL* 2.9 31.5 + - - +
509A ALA* 4.7 0.9 - - - -
516A MET* 1.3 74.8 - - - +
518A ASP* 1.3 71.9 + - - +
519A ILE* 3.5 25.5 + - + -
529A VAL* 4.3 12.8 - - + +
533A PHE* 3.5 54.9 - - + -
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Residues in contact with ASP 518 (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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27A VAL* 2.6 39.0 - - - +
28A SER 6.1 0.4 - - - +
31A ASN* 2.6 36.4 - - + +
34A ARG* 5.7 0.5 + - - -
35A ARG* 3.4 7.7 + - - -
498A VAL* 3.3 10.8 - - - +
507A SER* 2.6 23.7 + - - -
509A ALA* 3.1 16.2 - - + +
517A LEU* 1.3 80.8 - - - +
519A ILE* 1.3 62.8 + - - +
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Residues in contact with ILE 519 (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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35A ARG* 5.0 2.6 + - - -
465A ILE* 5.8 0.2 - - + -
497A ILE* 3.8 20.0 - - + -
498A VAL 3.1 5.9 + - - +
499A CYS* 3.8 25.4 - - + -
500A ALA* 3.0 27.4 + - - +
517A LEU* 3.5 29.8 + - + -
518A ASP* 1.3 78.8 - - - +
520A CYS* 1.3 65.5 + - - +
526A ALA* 4.6 10.1 - - + +
529A VAL* 4.6 18.6 - - + -
530A ILE* 3.6 35.2 - - + -
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Residues in contact with CYS 520 (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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31A ASN 5.4 0.4 - - - +
34A ARG* 4.3 13.2 - - + +
35A ARG* 3.5 33.9 - - + +
38A CYS* 3.5 29.6 - - - -
39A PHE* 3.6 7.4 - - - -
499A CYS* 4.0 6.1 - - - -
500A ALA* 4.2 4.3 - - - -
519A ILE* 1.3 77.3 - - - +
521A GLY* 1.3 78.6 + - - +
522A PHE 3.8 1.0 + - - -
523A ASP* 3.8 18.2 + - + +
526A ALA* 4.2 8.5 - - - +
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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