Contacts of the strand formed by residues 320 - 325 (chain B) in PDB entry 3FTN
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 VAL 320 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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143B GLU* 3.8 30.7 - - + +
147B MET* 4.0 17.9 - - + -
316B PRO 4.3 0.9 - - - +
317B SER* 3.0 21.1 + - - +
318B LYS* 4.7 2.1 - - - +
319B LEU* 1.3 80.3 - - - +
321B THR* 1.3 62.0 + - - +
322B HIS 3.8 10.8 - - - +
323B VAL* 3.8 29.3 - - + +
346B LYS 3.4 7.0 - - - +
348B VAL* 3.9 20.9 - - + -
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Residues in contact with THR 321 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
202B ILE* 3.6 17.9 - - + -
318B LYS 5.1 1.3 - - - +
319B LEU 3.5 0.6 + - - -
320B VAL* 1.3 75.5 - - - +
322B HIS* 1.3 83.6 + - - +
323B VAL* 4.4 0.9 - - - -
343B ASP 3.5 19.7 - - - +
344B LEU* 3.5 3.8 - - - +
345B ILE* 3.0 43.4 + - + +
346B LYS 3.1 4.2 + - - -
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Residues in contact with HIS 322 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
320B VAL* 3.6 4.0 - - - +
321B THR* 1.3 112.6 + - - +
323B VAL* 1.3 63.3 + - - +
324B PHE* 4.0 24.5 - + + -
336B LEU* 4.0 18.5 - - + +
341B PRO* 5.4 1.0 - - - +
343B ASP* 3.7 28.3 + - - -
344B LEU* 3.4 30.9 - - + +
346B LYS 3.6 1.4 + - - -
347B PRO* 3.4 8.9 - - + +
348B VAL 2.8 27.2 + - - +
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Residues in contact with VAL 323 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
143B GLU* 4.4 17.9 - - + +
320B VAL* 3.8 21.5 - - + +
322B HIS* 1.3 75.2 - - - +
324B PHE* 1.3 72.7 + - - +
325B ARG* 5.2 7.1 - - + +
348B VAL* 3.4 7.2 - - + +
350B ILE* 3.7 29.4 - - + -
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Residues in contact with PHE 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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322B HIS* 4.0 24.9 - + + -
323B VAL* 1.3 81.7 - - - +
325B ARG* 1.3 67.1 + - - +
329B ASN* 3.5 35.0 - - + +
332B LYS* 4.1 26.9 - - + -
333B ALA* 4.3 22.4 - - + -
336B LEU* 3.9 30.5 - - + -
347B PRO* 4.3 7.0 - - + -
348B VAL 2.7 16.7 + - - +
349B VAL* 4.1 4.0 - - + -
350B ILE* 2.9 26.2 + - - +
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Residues in contact with ARG 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 VAL* 5.2 7.3 - - + +
324B PHE* 1.3 81.1 - - - +
326B GLY* 1.3 61.1 + - - +
329B ASN* 2.7 29.4 + - - +
349B VAL* 4.1 0.9 - - - -
350B ILE* 3.3 44.1 + - + +
352B ALA 3.6 16.0 + - - -
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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