Contacts of the strand formed by residues 308 - 312 (chain B) in PDB entry 2BEW
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 SER 308 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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275B LEU 3.1 6.3 + - - -
276B LEU* 3.4 13.0 - - - +
277B ILE 2.9 25.1 + - - -
306B PRO 3.6 0.8 + - - -
307B ILE* 1.3 75.7 - - - +
309B ARG* 1.3 64.5 + - - +
310B VAL* 3.8 7.8 - - - +
335B ALA* 3.7 24.1 + - - +
339B MET* 3.8 23.8 - - - -
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Residues in contact with ARG 309 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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277B ILE* 3.3 7.0 - - + -
283B LEU* 3.6 57.1 + - + +
284B THR* 5.2 2.2 - - - +
285B GLY 5.2 0.6 - - - +
288B ALA* 3.7 36.3 - - + +
289B SER* 3.5 26.4 - - - +
292B SER* 4.5 14.1 + - - +
307B ILE 4.2 2.8 + - - +
308B SER* 1.3 77.7 + - - +
310B VAL* 1.3 62.8 + - - +
311B CYS* 3.9 7.9 + - - -
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Residues in contact with VAL 310 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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276B LEU* 4.0 17.3 - - + -
277B ILE 2.9 7.8 + - - +
278B SER* 2.8 38.2 + - - +
279B HIS 3.2 1.0 + - - -
308B SER* 3.8 7.2 - - - +
309B ARG* 1.3 74.9 - - - +
311B CYS* 1.3 62.1 + - - +
327B PRO* 3.6 12.3 - - + +
331B LYS* 4.1 13.5 - - + +
332B CYS* 3.9 30.1 - - - +
335B ALA* 3.6 28.7 - - + -
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Residues in contact with CYS 311 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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277B ILE 4.8 0.2 - - - -
279B HIS* 3.1 39.5 - - - +
281B ALA 3.6 11.7 - - - +
283B LEU* 3.7 33.1 - - + +
288B ALA* 4.2 3.1 - - - -
309B ARG* 3.9 8.3 + - - -
310B VAL* 1.3 88.4 - - - +
312B GLY* 1.3 72.3 + - - +
313B TYR* 3.7 7.1 + - - -
325B TYR 4.7 1.7 - - - +
327B PRO* 3.9 12.3 - - - +
331B LYS* 6.1 0.5 - - - +
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Residues in contact with GLY 312 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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279B HIS 3.2 6.3 + - - -
280B GLU 3.5 17.6 + - - -
281B ALA 3.2 8.0 + - - -
282B PRO* 4.0 0.9 - - - -
283B LEU* 3.0 25.1 + - - +
311B CYS* 1.3 80.1 - - - +
313B TYR* 1.3 62.4 + - - -
325B TYR* 3.5 21.1 - - - -
327B PRO* 4.0 3.8 - - - +
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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