Contacts of the strand formed by residues 124 - 129 (chain B) in PDB entry 3AFF
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 GLY 124 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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162A ARG* 4.0 12.3 - - - +
163A PRO* 4.5 5.2 - - - +
122B PRO 3.4 3.8 + - - +
123B MET* 1.3 77.3 - - - +
125B ALA* 1.3 60.2 + - - +
136B ASN 3.1 16.4 - - - -
137B GLY* 3.9 1.3 - - - -
139B TRP* 3.4 14.6 - - - -
155B GLY* 3.6 4.9 - - - -
156B PRO* 3.2 20.6 - - - +
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Residues in contact with ALA 125 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
161A GLY 3.6 19.9 + - - +
163A PRO* 4.1 7.9 - - + -
124B GLY* 1.3 74.6 - - - +
126B GLY* 1.3 59.8 + - - +
127B VAL* 5.3 0.7 - - + -
134B LEU 3.7 1.7 - - - +
135B VAL* 3.4 6.9 - - - +
136B ASN 3.1 29.3 + - - +
139B TRP* 4.2 1.8 - - - -
155B GLY* 4.8 2.2 - - - -
156B PRO* 3.5 25.4 - - + +
158B ILE* 3.9 18.6 - - + -
169B PHE* 4.7 2.7 - - - -
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Residues in contact with GLY 126 (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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125B ALA* 1.3 72.3 - - - +
127B VAL* 1.3 64.0 + - - -
128B VAL 3.9 0.3 + - - -
133B TYR* 4.0 6.3 - - - -
134B LEU 3.4 6.5 - - - -
135B VAL* 3.9 9.0 - - - -
156B PRO 3.0 9.3 + - - -
157B VAL* 3.3 7.5 - - - +
158B ILE 2.7 25.5 + - - -
169B PHE* 3.7 21.5 - - - -
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Residues in contact with VAL 127 (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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158A ILE* 5.4 4.0 - - + -
161A GLY* 4.4 26.2 - - - +
126B GLY* 1.3 74.7 - - - +
128B VAL* 1.3 74.4 - - - +
129B VAL* 3.2 6.1 + - + +
133B TYR* 3.1 2.6 - - - -
134B LEU* 2.8 47.7 + - + +
136B ASN* 6.3 0.2 - - - +
158B ILE* 3.4 31.2 - - + +
159B LYS* 5.8 0.7 - - - -
160B ASP 6.3 0.4 - - - +
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Residues in contact with VAL 128 (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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126B GLY 3.9 0.8 + - - -
127B VAL* 1.3 77.4 - - - +
129B VAL* 1.3 74.7 + - - +
132B GLY 3.6 7.4 - - - +
133B TYR* 4.1 8.5 - - + -
157B VAL* 3.6 28.5 - - + -
158B ILE 2.9 11.4 + - - +
159B LYS* 3.7 43.1 - - + -
164B VAL* 5.0 0.2 - - + -
204B ARG* 5.7 5.4 - - - +
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Residues in contact with VAL 129 (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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127B VAL* 3.2 11.6 + - + +
128B VAL* 1.3 87.1 - - - +
130B ASP* 1.3 65.4 + - - +
131B GLY 3.1 2.4 + - - -
132B GLY 2.9 17.5 + - - +
133B TYR 3.7 18.2 - - - +
134B LEU* 3.7 24.7 - - + -
201B PHE* 3.7 31.9 - - + -
204B ARG* 4.9 1.7 + - - -
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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