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Albumin
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<p>Albumin is a <a href="/facts/Protein_family/EHt5xwCA">family</a> of <a href="/facts/Globular_protein/PBlAMbBP">globular proteins</a>, the most common of which are the <a href="/facts/Serum_albumin/KW1YhuF3">serum albumins</a>. All of the proteins of the albumin family are water-<a href="/facts/Solubility/kLE9h3Jb">soluble</a>, moderately soluble in concentrated salt solutions, and experience heat <a href="/facts/Denaturation_(biochemistry)/Eh1hc3Bg">denaturation</a>. Albumins are commonly found in <a href="/facts/Blood_plasma/oHuwwugG">blood plasma</a> and differ from other <a href="/facts/Blood_proteins/C87ptzI0">blood proteins</a> in that they are not <a href="/facts/Glycosylation/VYEeQCRz">glycosylated</a>. Substances containing albumins are called <i>albuminoids</i>. </p><p>A number of blood transport proteins are evolutionarily related in the albumin family, including serum albumin, <a href="/facts/Alpha-fetoprotein/FRzKt0dw">alpha-fetoprotein</a>, <a href="/facts/Vitamin_D-binding_protein/Kns2rBrX">vitamin D-binding protein</a> and <a href="/facts/Afamin/ovJx4NDa">afamin</a>. This family is only found in <a href="/facts/Vertebrates/tT54FSTT">vertebrates</a>. </p><p><i>Albumins</i> in a less strict sense can mean other proteins that <a href="/facts/Coagulate/vnfEevM0">coagulate</a> under certain conditions. See <i>§ Other albumin types</i> for <a href="/facts/Lactalbumin/hvVHFC5Y">lactalbumin</a>, <a href="/facts/Ovalbumin/0b3aU87B">ovalbumin</a> and plant "2S albumin". </p>