Contacts of the strand formed by residues 323 - 332 (chain B) in PDB entry 2A1A
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 TYR 323 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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309B VAL* 3.9 26.5 - - + +
312B LEU* 3.6 37.0 - - + +
313B ALA* 3.7 33.2 - - + +
321B VAL 3.7 2.0 + - - +
322B HIS* 1.3 72.2 - - - +
324B ASN* 1.3 68.2 + - - +
325B GLY* 3.4 32.8 - - - -
326B CYS* 3.4 23.2 + - - -
364B ILE* 4.1 9.0 - - + -
365B GLN 3.8 7.6 - - - -
366B MET* 4.6 0.9 - - - +
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Residues in contact with ASN 324 (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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291B LYS* 5.1 5.8 + - - +
293B TYR* 3.3 34.9 - - + -
322B HIS* 3.9 11.9 + - - +
323B TYR* 1.3 78.5 - - - +
325B GLY* 1.3 55.3 + - - +
365B GLN* 2.8 33.1 + - + +
366B MET 2.9 36.2 + - - -
367B GLU* 3.2 6.9 - - - +
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Residues in contact with GLY 325 (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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323B TYR* 3.4 25.2 - - - -
324B ASN* 1.3 78.4 - - - +
326B CYS* 1.3 62.6 + - - +
327B TRP* 5.5 0.4 - - - -
365B GLN* 2.8 31.2 + - - +
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Residues in contact with CYS 326 (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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262B ARG* 5.2 1.7 + - - -
309B VAL* 3.9 33.2 - - + -
323B TYR* 3.4 16.8 + - - +
325B GLY* 1.3 76.5 - - - +
327B TRP* 1.3 71.2 + - - +
362B LEU* 4.1 11.9 - - + -
363B PHE 3.0 15.5 - - - +
364B ILE* 4.0 2.2 - - - -
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Residues in contact with TRP 327 (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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260B ASP* 3.1 20.2 + - - -
262B ARG* 3.8 46.0 - - + +
263B PHE* 3.8 30.5 - + + -
266B ASP* 5.7 2.9 - - + -
267B PHE* 3.6 32.8 - + - -
295B ILE* 3.8 21.5 - - + -
326B CYS* 1.3 82.7 - - - +
328B ASP* 1.3 75.6 + - - +
329B GLY* 4.2 0.4 - - - -
361B CYS 3.6 0.2 - - - +
362B LEU* 3.7 6.4 - - - +
363B PHE* 2.8 69.6 + + + +
365B GLN* 4.2 16.2 - - + -
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Residues in contact with ASP 328 (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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262B ARG* 5.0 10.4 + - - +
300B TYR* 3.8 29.7 - - + -
327B TRP* 1.3 85.9 - - - +
329B GLY* 1.3 59.2 + - - +
360B LYS* 4.4 16.1 + - + +
361B CYS 3.2 6.5 - - - +
362B LEU* 4.4 1.0 - - - +
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Residues in contact with GLY 329 (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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260B ASP* 3.2 17.3 - - - -
262B ARG* 6.2 0.4 - - - -
327B TRP* 3.8 1.7 + - - -
328B ASP* 1.3 74.2 - - - +
330B PHE* 1.3 58.0 + - - +
360B LYS* 3.2 12.6 - - - +
361B CYS* 2.8 34.7 + - - -
363B PHE* 4.2 4.7 - - - -
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Residues in contact with PHE 330 (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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259B VAL 4.3 2.3 - - - +
260B ASP* 3.2 24.4 + - - +
261B LYS 4.6 1.0 + - - -
329B GLY* 1.3 72.1 - - - -
331B ASP* 1.3 61.9 + - - +
358B LYS* 3.5 63.3 - - + -
359B THR* 3.3 20.0 - - - -
360B LYS* 4.2 1.8 - - - -
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Residues in contact with ASP 331 (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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258B THR* 2.5 28.7 + - - -
259B VAL* 3.1 27.9 + - - +
260B ASP* 3.6 2.2 - - + +
297B ARG* 2.9 30.8 + - - +
330B PHE* 1.3 73.5 - - - +
332B TYR* 1.3 81.9 + - - +
358B LYS* 3.2 26.0 - - - +
359B THR 3.3 11.3 + - - +
361B CYS* 3.9 6.0 - - - -
363B PHE* 3.2 25.1 - - + -
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Residues in contact with TYR 332 (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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256B ALA 4.2 9.0 + - - -
257B HIS* 3.2 31.0 - - - -
259B VAL* 3.4 38.4 - - + +
297B ARG* 3.8 14.7 - - - +
331B ASP* 1.3 93.3 + - - +
333B ASP* 1.3 61.3 + - - +
334B PRO* 3.0 16.8 - - - +
356B ARG* 4.1 34.3 - - + -
357B SER 3.5 4.0 - - - +
358B LYS* 3.8 19.3 - - + -
361B CYS* 3.8 4.0 - - - -
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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