Albumin

Albumin is a family of globular proteins, the most common of which are the serum albumins. All of the proteins of the albumin family are water-soluble, moderately soluble in concentrated salt solutions, and experience heat denaturation. Albumins are commonly found in blood plasma and differ from other blood proteins in that they are not glycosylated. Substances containing albumins are called albuminoids.

Serum albumin family
Structure of serum albumin.
Identifiers
SymbolSerum_albumin
PfamPF00273
Pfam clanCL0282
InterProIPR014760
SMARTSM00103
PROSITEPS51438
SCOP21ao6 / SCOPe / SUPFAM
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary
PDB1ao6, 1bj5, 1bke, 1bm0, 1e78, 1e7a, 1e7b, 1e7c, 1e7e, 1e7f, 1e7g, 1e7h, 1e7i, 1gni, 1gnj, 1h9z, 1ha2, 1hk1, 1hk2, 1hk3, 1hk4, 1hk5, 1j78, 1j7e, 1kw2, 1kxp, 1lot, 1ma9, 1n5u, 1o9x, 1tf0, 1uor, 1ysx, 2bx8, 2bxa, 2bxb, 2bxc, 2bxd, 2bxe, 2bxf, 2bxg, 2bxh, 2bxi, 2bxk, 2bxl, 2bxm, 2bxn, 2bxo, 2bxp, 2bxq, 2i2z, 2i30, 2vdb, 2vue, 2vuf, 3b9l, 3b9m

A number of blood transport proteins are evolutionarily related in the albumin family, including serum albumin, alpha-fetoprotein, vitamin D-binding protein and afamin. This family is only found in vertebrates.

Albumins in a less strict sense can mean other proteins that coagulate under certain conditions. See § Other albumin types for lactalbumin, ovalbumin and plant "2S albumin".

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