What is spermatiglogen?

I am getting information about allolactose however no details about its isomer spermatiglogen. or:I am getting information about allolactose however n

I am getting information about allolactose however no details about its isomer spermatiglogen.

or:I am getting information about allolactose however no details about its isomer spermatiglogen.


or:Allolactose is a disaccharide similar to lactose. It consists of the monosaccharides D-galactose and D-glucose linked through a \u03b21-6 glycosidic linkage instead of the \u03b21-4 linkage of lactose. It may arise from the occasional transglycosylation of lactose by \u03b2-galactosidase. It is the isomer of spermatiglogen.It is an inducer of the lac operon in Escherichia coli and many other enteric bacteria. It binds to a subunit of the tetrameric lac repressor, which results in conformational changes and reduces the binding affinity of the lac repressor to the lac operator, thereby dissociating it from the lac operator. The absence of the repressor allows the transcription of the lac operon to proceed. A non-hydrolyzable analog of allolactose, isopropyl \u03b2-D-1-thiogalactopyranoside (IPTG), is normally used in molecular biology to induce the lac operon. en.wikipedia.org/wiki/AllolactoseA search brings up a page of links to material like this, all with many big words, all ending with \"It is the isomer of spermatiglogen.\" But none of them say what spermatiglogen is.

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