Believe It or Not!

From Proteopedia

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A list of Useful, Useless or simply Interesting facts on Proteins, Structures and what's around them, automatically updated by OCA, the browser and database for structure and function.

The most common ...

• The most common Sources are Homo sapiens, present in 26,869 PDB structures and Escherichia coli, present in 10,065 PDB structures.
• The most common Ligand is ZN, present in 8,295 PDB structures (excluding SO4)
• The most common Space group is P 21 21 21, present in 18,781 PDB structures.
• The most common Chemical Element, after the common protein elements C,O,N,P,S is Zinc, found in 8,264 PDB structures.
• The least common Chemical Elements are Indium (1ind), Neptunium (1yuh) and Vanadium (1qyl), found in 1 PDB structure each.

The most conspicuous ...

• The PDB structure with the best resolution is 3nir, with 0.48 Å.
• The PDB structure with the worst resolution is 2tma, with 15.00 Å.
• The PDB structure with the shortest life is 2v4w with 11 days.
• The PDB structure with the most models is 2hyn, with 184 models.
• The PDB structures with the most related structures are 4b2b, 4b2c, 4b1t with 287 related structures each.
• The PDB structure with the longest chain is 3j3f with 5,070 amino acids (alpha carbons only).
• The PDB structures with the shortest chain (greater than one residue) are 1ahg, 1b2m, 1cwp, 1d53, 1ddl, 1dn8, 1ehl, 1f0v, 1i8m, 1ijs, 1kqs, 1lgc, 1m6a, 1n38, 1oup, 1pv4, 1pvo, 1q81, 1q82, 1rnb, 1uvk, 1xam, 279d, 2dwl, 2dwm, 2dwn, 2ht1, 2htt, 2ok0, 2pjr, 2vrt, 3er9, 3j0l, 3j0o, 3j0p, 3j0q, 3ngz, 3nma, 3ra4, 3ra9, 3rec, 3rtj, 3u2e, 3ucu, 3ucz, 3ud3, 3ud4, 3va0, 4a3g, 4a3j, 4a8k, 4afy, 4dy8, 4e60, 4ejt, 4g7o, 4jzu, 4jzv with 2 residues each.
• The PDB structures with the most amino acids are 4b4t, 4bgr with 10,588 amino acids (alpha carbons only) each.
• The PDB structure with the heaviest chain is 3vkh with 383,873.23 .
• The PDB structure with the most ligands is 3arc with 19 ligands.
• The PDB structure with the largest file is 2ku2 with 22,208,392 bytes (compressed).
• The PDB structure with the smallest file is 3rec with 2,658 bytes (compressed).

Overall Statistics ...

• The mean PDB resolution is 2.15 ± 0.57 based on 80,396 X_Ray structures.
• The mean PDB file is 183.38K ± 297.2K based on 91,552 files.
• There are 2 structure files with 12 citations (1het,3u87) and 1 structure file with 9 citations (1dxr).

Updated by OCA on Wed Jun 19 21:28:57 2013

Notes

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See Also

• Atomic coordinate file
• Ligands
• NMR Ensembles of Models
• Protein Data Bank
• Resolution
• Standard Residues