B1 domain

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B1
PDB 1hez EBI.jpg
antibody-antigen complex
Identifiers
Symbol B1
Pfam PF02246
InterPro IPR003147
SMART PB1
SCOP 1ipg
SUPERFAMILY 1ipg

In molecular biology, the protein domain b1 refers to the domain b1 of Protein L. L is a bacterial protein with immunoglobulin (Ig) light chain-binding properties. It contains a number of homologous b1 repeats towards the N terminus. These repeats have been found to be responsible for the interaction of protein L with Ig light chains.[1] N-terminus domain contains five homologous B1 repeats of 72-76 amino acids each. [1]

References[edit]

  1. ^ a b Kastern W, Sjöbring U, Björck L (June 1992). "Structure of peptostreptococcal protein L and identification of a repeated immunoglobulin light chain-binding domain". J. Biol. Chem. 267 (18): 12820–5. PMID 1618782. 

This article incorporates text from the public domain Pfam and InterPro IPR003147