Contacts of the strand formed by residues 371 - 375 (chain A) in PDB entry 4KYI
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 371 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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295A MET* 4.4 12.6 - - + +
303A ARG* 6.2 1.3 - - - +
308A CYS* 3.7 30.3 - - + +
310A LYS* 4.9 11.0 - - - -
369A ASP* 3.5 15.9 + - - +
370A ASN* 1.3 76.9 - - - +
372A ILE* 1.3 60.7 + - - +
373A TYR* 3.4 48.5 + - + +
405A LEU* 3.3 18.0 - - - +
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Residues in contact with ILE 372 (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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53A MET* 4.3 4.3 - - + -
57A LEU* 5.1 4.0 - - + -
307A LEU* 4.7 15.3 - - + -
308A CYS 2.6 17.2 + - - +
309A VAL* 3.3 23.9 - - + +
310A LYS* 2.7 32.7 + - - +
370A ASN 4.1 1.6 - - - +
371A MET* 1.3 71.3 - - - +
373A TYR* 1.3 60.9 + - - +
374A ILE* 4.2 16.6 - - + -
401A GLN* 4.6 3.1 - - + -
402A THR* 3.6 51.6 - - + +
405A LEU* 3.5 27.8 - - + -
406A LEU* 5.4 1.1 - - + -
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Residues in contact with TYR 373 (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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310A LYS* 3.3 28.0 - - + -
312A GLU* 3.3 35.7 - - + +
317A PHE* 3.7 8.6 - - + -
320A ARG* 3.6 48.6 - - - +
371A MET* 3.4 42.6 + - + +
372A ILE* 1.3 74.0 - - - +
374A ILE* 1.3 61.8 + - - +
401A GLN* 3.0 33.9 - - + +
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Residues in contact with ILE 374 (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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49A SER* 3.5 43.3 - - - +
50A TYR* 4.4 6.3 - - + -
53A MET* 4.2 17.3 - - + -
309A VAL* 3.7 26.5 - - + -
310A LYS 2.9 12.4 + - - +
311A ALA* 3.4 9.3 - - + -
312A GLU 3.0 27.9 + - - +
317A PHE* 4.1 3.3 - - - -
372A ILE* 4.2 9.9 - - + -
373A TYR* 1.3 80.0 - - - +
375A ASN* 1.3 67.9 + - - +
376A THR 3.4 1.1 + - - +
394A ALA 4.5 2.9 - - - +
397A ASN* 3.7 8.1 - - - +
398A GLY* 4.1 18.4 - - - +
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Residues in contact with ASN 375 (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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312A GLU 4.1 2.0 - - - -
314A GLY* 3.4 18.4 + - - -
317A PHE* 3.6 38.7 - - + +
318A GLU* 4.9 7.9 + - - +
374A ILE* 1.3 73.5 - - - +
376A THR* 1.3 64.0 + - - +
377A GLY* 2.9 28.7 + - - -
394A ALA* 4.4 9.0 - - - +
397A ASN* 2.7 40.3 + - + +
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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