Hot answers tagged pdb
Swiss PDB Viewer allows you to mutate residues in an existing structure and explore the effects. I'm pretty sure that UCSF Chimera does too.
Solving the 3D structure of a protein is hard and a lot of work, doing that for every common SNP of a protein would be excessive in most cases. So you generally won't find such structures unless the structure of the specific mutated version is particularly interesting. In many cases it is also not structurally interesting what happens, there is no point in ...
There doesn't seem to be a 3D structure of Osteopontin available, and after looking a bit at the literature about this protein I'm not really surprised. Osteopontin is hypothesized to assume an elongated and flexible structure (Sodek et al., 2000). Flexible proteins are very hard to impossible to crystallize, typically the flexible parts are either removed ...
You saw my last answer of your question? you can do that easily, just use prepare_ligand4.py -l my.mol2 -A "hydrogens"
You may consider taking a look at the SCOP structural classification of proteins to check all beta proteins and all alpha proteins. As per specific examples and though not belonging to the SCOP classes mentioned above, Porin for a beta protein (PDB:1A0S), and Rhodopsin for an alpha protein (PDB:1F88) are two nice structures to look at.
PDB residues are described by the residue number and an insertion code. Residue numbers can be any number, including negative values. In 3CKR the first residue has nr. -6, followed by -5, etc. This might indicate that there are additional residues at the beginning of the sequence, relative to other PDB entries. In 2P83, the first residue has the number 61P. ...
You can find examples by using the "drilldown" function at the RCSB PDB homepage: Click on the number 103921 at the top of the page at http://www.rcsb.org then find the "SCOP Classification" section and then e.g. select "All alpha proteins".
The pdb file that you mention is entitled: V-Amylose at atomic resolution: X-ray structure of a cycloamylose with 26 glucose residues (cyclomaltohexaicosaose). So, it isn't a protein at all, it is a circular oligosaccharide consisting of 26 glucose (GLC) residues. I imagine that the usual fields in the pdb file have been fudged to accommodate this.
Here's one: http://www.rcsb.org/pdb/explore/explore.do?structureId=2IPH. It was crystallized with the inhibitor bound to the protein.
check out the sequence page at RCSB PDB, it can show SNPs mapped onto 3D for some of the proteins (you need to enable the SNP annotations in the drop-down) http://www.rcsb.org/pdb/explore/remediatedSequence.do?params.showJmol=true&structureId=4HHB
only a small peptide of Osteopontin is available currently http://www.rcsb.org/pdb/protein/P10451
Only top voted, non community-wiki answers of a minimum length are eligible