Contacts of the strand formed by residues 275 - 280 (chain B) in PDB entry 3EJW
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 GLY 275 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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269B LEU 3.6 0.7 - - - +
270B GLU* 3.5 14.9 - - - -
271B ILE* 2.7 45.3 + - - +
273B GLY 4.6 0.2 - - - +
274B VAL* 1.3 78.4 - - - +
276B THR* 1.3 61.7 + - - -
277B VAL* 3.8 0.7 + - - +
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Residues in contact with THR 276 (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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268B LYS* 4.0 28.7 - - + -
269B LEU 3.5 1.8 - - - +
270B GLU* 2.5 27.1 + - - +
274B VAL* 4.3 0.7 + - - +
275B GLY* 1.3 71.6 - - - -
277B VAL* 1.3 78.1 + - - +
278B GLU* 5.4 1.6 - - + +
300B PRO* 5.5 7.3 - - - +
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Residues in contact with VAL 277 (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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249B ILE* 4.1 28.7 - - + -
253B VAL* 4.5 8.1 - - + -
263B MET* 5.5 1.0 - - + +
268B LYS* 3.3 4.7 - - - +
269B LEU* 2.9 50.7 + - + +
271B ILE* 4.0 23.1 - - + -
274B VAL* 4.8 7.9 - - + -
275B GLY 4.8 0.4 - - - +
276B THR* 1.3 79.6 - - - +
278B GLU* 1.3 62.4 + - - +
297B ILE* 3.8 24.0 - - + -
298B LEU 5.0 8.3 - - - +
299B LEU* 6.1 0.2 - - + -
300B PRO* 5.2 4.9 - - + -
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Residues in contact with GLU 278 (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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263B MET* 5.9 0.7 - - - -
266B GLY* 3.9 16.6 - - - +
267B GLU 3.4 11.9 - - - +
268B LYS* 3.7 29.2 - - + -
276B THR* 5.4 2.0 - - + +
277B VAL* 1.3 77.7 - - - +
279B VAL* 1.3 75.4 + - - +
280B SER* 3.7 7.9 + - - +
296B ILE 3.7 0.3 - - - +
297B ILE* 3.5 24.3 - - - +
298B LEU 4.2 5.0 + - - -
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Residues in contact with VAL 279 (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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100B TYR* 4.4 10.3 - - + -
263B MET* 3.9 41.5 - - + +
264B LYS 3.5 17.9 - - - +
265B VAL* 3.6 11.3 - - + +
266B GLY* 2.8 28.6 + - - -
267B GLU 3.0 8.3 + - - +
278B GLU* 1.3 77.4 - - - +
280B SER* 1.3 73.0 + - - +
294B ASN 4.4 2.2 - - - +
295B GLY* 4.0 18.6 - - - -
296B ILE 3.7 4.7 - - - +
297B ILE* 4.0 14.6 - - + -
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Residues in contact with SER 280 (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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265B VAL* 4.0 6.2 - - - +
278B GLU* 4.5 8.1 + - - +
279B VAL* 1.3 76.5 + - - +
281B ALA* 1.3 62.6 + - - +
284B VAL* 3.9 25.8 - - - +
295B GLY* 3.5 6.2 - - - -
296B ILE 2.7 39.2 + - - -
298B LEU* 4.1 16.1 + - - +
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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