Contacts of the strand formed by residues 307 - 310 (chain G) in PDB entry 4PKY
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 307 (chain G).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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281G TYR* 3.4 42.0 + + + -
285G ASP* 3.5 20.0 - - + -
288G ASN* 6.6 0.2 - - + -
289G MET* 3.6 23.3 - - + -
304G SER* 3.4 20.2 - - - -
305G GLY 3.5 2.5 - - - +
306G GLN* 1.3 73.4 - - - +
308G ARG* 1.3 64.8 + - - +
309G MET* 4.1 18.7 - - + -
318G TRP* 3.4 10.3 - - - -
319G LEU* 2.8 69.2 + - + +
321G THR* 2.7 29.6 + - - -
341G ASN* 3.7 5.4 + - - -
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Residues in contact with ARG 308 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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281G TYR* 3.6 4.7 - - - -
282G HIS* 2.8 63.3 + - + -
284G LEU* 3.7 33.3 - - - +
285G ASP* 2.8 31.9 + - - +
307G TYR* 1.3 77.3 - - - +
309G MET* 1.3 59.4 + - - +
316G TYR* 4.0 20.4 - - + -
317G VAL 3.6 4.0 - - - +
318G TRP* 3.5 53.0 - - + +
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Residues in contact with MET 309 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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244G PHE* 4.4 7.2 - - + -
254G PHE* 4.4 18.6 - - + -
261G ILE* 4.3 21.3 - - + -
265G ILE* 4.4 19.5 - - + -
267G TYR* 4.5 2.9 - - + -
272G LEU* 5.4 1.3 - - + -
280G PHE* 3.3 37.0 - - + -
281G TYR* 5.4 2.7 - - + -
307G TYR* 4.0 12.4 + - + -
308G ARG* 1.3 73.4 - - - +
310G LEU* 1.3 68.6 + - - +
311G ALA 3.3 1.6 + - - -
316G TYR* 3.5 3.8 - - - -
317G VAL* 3.1 32.7 + - + +
319G LEU* 3.4 36.3 - - + -
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Residues in contact with LEU 310 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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265G ILE* 3.8 2.9 - - - +
267G TYR* 2.8 34.7 + - - +
275G ARG* 6.0 2.0 - - - +
279G GLU 4.3 14.1 - - - +
280G PHE* 2.6 30.4 + - + +
309G MET* 1.3 71.8 - - - +
311G ALA* 1.3 72.9 + - - +
314G GLY* 5.3 2.2 - - - -
315G GLY 4.0 7.9 - - - +
316G TYR* 3.5 36.7 - - + +
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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