Contacts of the strand formed by residues 633 - 637 (chain A) in PDB entry 3APO
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 GLU 633 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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581A VAL 3.3 4.0 - - - +
582A ASP* 3.8 0.3 - - - -
583A PHE* 2.9 38.5 + - + -
628A VAL* 4.1 15.9 - - + -
629A GLN 5.9 0.7 - - - -
630A ARG* 2.8 58.8 + - + +
632A PRO* 1.3 74.1 - - - +
634A ILE* 1.3 62.8 + - - +
635A ARG* 2.7 41.1 + - + +
649A SER* 2.6 24.7 + - - -
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Residues in contact with ILE 634 (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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580A MET* 4.4 1.1 - - + -
581A VAL 3.5 3.8 - - - +
582A ASP* 5.0 1.6 - - - +
594A LEU* 4.0 28.0 - - + -
598A TRP* 3.6 30.1 - - + -
630A ARG* 5.6 0.2 - - - +
632A PRO* 4.3 2.0 + - + +
633A GLU* 1.3 79.3 + - - +
635A ARG* 1.3 62.3 + - - +
649A SER* 3.3 6.2 - - - -
650A TYR* 2.9 42.8 + - + +
655A ARG* 4.0 28.5 - - + -
660A LEU* 4.0 21.5 - - + -
663A TRP* 3.7 23.6 - - + -
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Residues in contact with ARG 635 (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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579A TRP 3.7 1.0 - - - +
580A MET* 3.3 5.4 - - - +
581A VAL 2.9 35.4 + - - +
583A PHE* 3.8 11.7 - - + -
626A GLU* 2.8 43.0 + - - +
627A ASN* 3.4 20.6 + - - +
628A VAL* 3.9 13.3 - - - +
633A GLU* 2.7 34.0 + - + +
634A ILE* 1.3 75.2 - - - +
636A PHE* 1.3 60.5 + - - +
637A TYR* 3.6 35.0 + - + -
647A TYR* 3.4 47.3 + - + -
648A HIS 3.1 3.1 - - - +
649A SER* 3.8 2.0 - - - +
663A TRP* 4.4 3.6 - - - -
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Residues in contact with PHE 636 (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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578A VAL* 3.6 37.7 - - + -
579A TRP 3.4 5.2 - - - -
580A MET* 3.7 19.5 - - + +
609A ILE* 4.1 4.7 - - + -
635A ARG* 1.3 71.0 - - - +
637A TYR* 1.3 61.2 + - - +
638A PRO* 3.5 31.5 - - + +
647A TYR* 3.1 7.0 - - - -
648A HIS* 2.8 34.8 + - + +
663A TRP* 3.7 21.7 - + + -
664A GLY* 3.6 24.2 - - - -
667A PHE* 3.2 51.6 - + + -
668A LEU* 4.6 3.8 - - + -
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Residues in contact with TYR 637 (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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566A PHE* 3.6 21.6 - + - -
570A VAL* 3.6 21.5 - - + -
571A LYS* 6.3 0.2 - - - -
573A ARG* 3.6 22.8 + - - +
578A VAL* 3.2 7.1 - - - +
579A TRP* 2.7 40.4 + - + +
581A VAL* 3.6 24.2 - - + -
583A PHE* 3.5 23.0 - - - -
626A GLU* 5.0 1.9 + - - -
635A ARG* 3.6 34.9 + - + -
636A PHE* 1.3 74.7 - - - +
638A PRO* 1.3 69.4 - - - +
646A GLN* 3.6 15.3 - - + -
647A TYR* 3.8 18.6 - + + -
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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