Contacts of the strand formed by residues 306 - 310 (chain C) in PDB entry 1P4V
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 ILE 306 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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303C ASN* 3.2 34.3 - - - +
305C PRO* 1.3 76.6 - - - +
307C VAL* 1.3 64.7 + - - +
308C LEU* 4.0 10.8 - - + -
322C TRP* 4.1 1.3 - - - -
325C LEU* 4.3 2.9 - - - +
457C ALA* 3.2 3.8 - - - +
458C LEU* 2.9 43.4 + - + +
560C LEU* 3.7 21.9 - - + +
564C GLY* 3.5 12.3 - - - +
566C TYR* 3.5 33.9 - - + -
579C VAL* 4.1 2.9 - - + -
580C HIS 3.2 14.6 - - - +
581C ASP* 3.9 7.6 - - + -
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Residues in contact with VAL 307 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
306C ILE* 1.3 77.3 - - - +
308C LEU* 1.3 67.0 + - - +
318C ASN* 3.5 26.4 + - + +
321C ALA* 4.1 5.8 - - + -
322C TRP* 4.4 2.5 - - + -
325C LEU* 3.7 20.2 - - + -
455C MET* 3.5 30.5 - - + -
456C ILE 3.4 12.6 - - - +
457C ALA* 3.9 6.5 - - + -
579C VAL* 3.4 2.1 - - - -
580C HIS* 2.8 60.7 + - + +
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Residues in contact with LEU 308 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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306C ILE* 4.0 4.0 - - + -
307C VAL* 1.3 75.5 - - - +
309C SER* 1.3 61.8 + - - +
318C ASN* 4.1 1.3 - - - -
455C MET* 3.3 4.3 - - - +
456C ILE* 2.9 37.1 + - + +
558C ILE* 3.9 23.0 - - + +
559C ALA 3.9 10.1 - - - +
560C LEU* 3.7 22.4 - - + -
566C TYR* 3.6 31.2 - - + -
567C GLY 4.2 2.5 - - - +
577C PHE* 3.8 23.8 - - + -
578C ALA 3.1 6.1 - - - +
579C VAL* 3.2 29.6 - - + -
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Residues in contact with SER 309 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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308C LEU* 1.3 77.1 - - - +
310C THR* 1.3 61.7 + - - +
314C GLY* 2.8 30.0 + - - -
318C ASN* 2.6 24.2 + - - -
453C ILE* 4.3 5.2 - - - -
454C GLY 3.2 12.1 - - - -
455C MET* 3.7 17.9 - - - -
558C ILE* 3.8 6.1 - - - -
577C PHE* 3.3 4.9 - - - +
578C ALA* 2.9 30.2 + - - +
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Residues in contact with THR 310 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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309C SER* 1.3 71.4 - - - +
311C TRP* 1.3 77.4 + - - +
313C PHE* 2.9 27.4 - - - -
314C GLY* 3.8 1.6 + - - -
452C THR 2.9 15.2 + - - -
453C ILE* 3.3 0.9 - - - +
454C GLY* 2.9 30.2 + - - +
501C THR* 4.3 7.0 - - + +
502C ALA 4.7 2.9 - - - +
503C THR* 4.1 22.7 - - + -
556C GLY 5.4 0.7 - - - +
558C ILE* 3.7 23.8 - - + -
575C PHE* 4.2 12.1 - - + -
577C PHE* 4.5 0.2 - - - -
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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