Contacts of the strand formed by residues 52 - 58 (chain A) in PDB entry 4GZZ
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 ALA 52 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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51A THR* 1.3 76.2 - - - +
53A VAL* 1.3 67.4 + - - +
54A THR* 3.5 2.8 + - - -
83A LYS* 5.5 7.0 - - - +
85A LEU 5.1 6.3 - - - +
87A VAL* 6.2 0.9 - - - -
144A VAL* 3.4 8.3 - - - +
145A ASP 3.3 24.6 + - - +
168A ASP 5.3 0.2 - - - +
169A ALA 4.6 0.2 - - - -
170A VAL* 3.3 43.5 - - + +
171A PHE* 3.2 14.1 - - + -
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Residues in contact with VAL 53 (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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52A ALA* 1.3 76.0 - - - +
54A THR* 1.3 61.4 + - - +
55A SER 4.3 1.6 - - - +
56A VAL* 3.7 21.3 - - + -
82A LEU* 3.3 36.5 + - + +
83A LYS* 5.4 1.8 - - - +
85A LEU* 4.8 14.3 + - + +
87A VAL* 5.3 2.0 - - + -
142A VAL* 3.6 33.9 - - + -
143A ARG 3.7 7.9 - - - +
144A VAL* 4.4 8.5 - - + -
167A VAL* 3.8 21.1 - - + +
168A ASP 3.9 12.6 - - - +
169A ALA* 4.2 4.4 - - - -
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Residues in contact with THR 54 (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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52A ALA 3.5 2.3 + - - -
53A VAL* 1.3 74.8 - - - +
55A SER* 1.3 56.4 + - - +
143A ARG* 3.1 34.5 + - - +
145A ASP* 3.1 27.7 + - + +
156A HIS* 3.5 30.3 + - + +
158A ILE* 3.6 12.8 - - + -
166A PRO* 3.4 1.9 - - - +
167A VAL* 2.6 37.8 + - - +
169A ALA* 4.8 4.2 - - + +
171A PHE* 4.2 8.5 - - - -
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Residues in contact with SER 55 (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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54A THR* 1.3 81.6 - - - +
56A VAL* 1.3 65.7 + - - +
141A GLU 3.8 0.9 - - - +
143A ARG* 2.9 32.8 + - - +
158A ILE* 3.1 39.1 + - - +
160A ASP* 3.7 19.8 - - - +
164A ALA* 4.9 2.9 - - - -
165A ILE 3.6 6.3 - - - -
166A PRO* 3.9 10.3 - - - -
167A VAL* 4.2 1.6 - - - +
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Residues in contact with VAL 56 (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 VAL* 3.7 16.8 - - + -
55A SER* 1.3 80.1 - - - +
57A TYR* 1.3 61.5 + - - +
58A ILE* 4.1 13.2 - - + -
79A ILE* 5.2 7.6 - - + -
82A LEU* 3.6 24.0 - - + -
140A MET* 3.6 30.3 - - + -
141A GLU 3.4 8.5 - - - +
142A VAL* 4.2 5.6 - - + -
160A ASP* 6.1 0.2 - - - -
164A ALA* 4.1 2.2 - - - -
165A ILE* 2.7 50.5 + - + +
167A VAL* 3.8 11.7 - - + -
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Residues in contact with TYR 57 (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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56A VAL* 1.3 75.1 - - - +
58A ILE* 1.3 78.5 + - - +
59A GLU* 3.7 13.6 + - - -
61A VAL 4.6 1.1 - - - -
140A MET* 3.2 4.9 - - - +
141A GLU* 2.9 72.1 + - + +
160A ASP* 5.2 1.8 + - - +
161A ARG* 3.5 33.7 - - + -
162A ILE* 6.0 0.2 - - + -
163A ASN* 3.4 53.1 + - + -
164A ALA* 3.5 13.2 - - + +
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Residues in contact with ILE 58 (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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56A VAL* 4.1 9.4 + - + -
57A TYR* 1.3 96.5 - - - +
59A GLU* 1.3 84.0 + - + +
60A ASP 3.5 1.6 - - - +
61A VAL* 3.6 37.0 + - + +
68A ILE* 3.6 30.7 - - + -
75A VAL* 5.1 6.1 - - + -
78A ILE* 5.8 6.3 - - + -
79A ILE* 6.1 2.9 - - + -
138A LEU* 5.8 2.5 - - + -
139A ASN 3.8 6.3 - - - +
140A MET* 3.7 40.8 - - + -
163A ASN 5.0 0.8 + - - -
165A ILE* 4.9 10.9 - - + +
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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