CBS domain

Available protein structures:
PDB	1ak5, 1b3o, 1jcn, 1jr1, 1lrt, 1me7, 1me8, 1me9, 1meh, 1mei, 1mew, 1nf7, 1nfb, 1o50, 1pbj, 1pvm, 1pvn, 1vr9, 1vrd, 1xkf, 1y5h, 1yav, 1zfj, 2cu0, 2d4z, 2ef7, 2j9l, 2nyc, 2nye, 2o16, 2oox, 2oux, 2qh1, 2rc3, 2rif, 2rih, 2v8q, 2v92, 2v9j, 2yvx, 2yzi, 2yzq, 3ddj IPR000644 PF00571 (ECOD; PDBsum)
AlphaFold	IPR000644; PF00571;

CBS domain
CBS domain
	Structure of the yeast SNF4 protein that contains four CBS domains. This protein is part of the AMP-activated protein kinase (AMPK) complex.
Identifiers
Symbol	CBS
Pfam	PF00571
InterPro	IPR000644
SMART	CBS
PROSITE	PS51371
SCOP2	1zfj / SCOPe / SUPFAM
CDD	cd02205
PDB
Available protein structures:
PDB	1ak5, 1b3o, 1jcn, 1jr1, 1lrt, 1me7, 1me8, 1me9, 1meh, 1mei, 1mew, 1nf7, 1nfb, 1o50, 1pbj, 1pvm, 1pvn, 1vr9, 1vrd, 1xkf, 1y5h, 1yav, 1zfj, 2cu0, 2d4z, 2ef7, 2j9l, 2nyc, 2nye, 2o16, 2oox, 2oux, 2qh1, 2rc3, 2rif, 2rih, 2v8q, 2v92, 2v9j, 2yvx, 2yzi, 2yzq, 3ddj IPR000644 PF00571 (ECOD; PDBsum)
AlphaFold	IPR000644; PF00571;

In molecular biology, the CBS domain is a protein domain found in a range of proteins in all species from bacteria to humans. It was first identified as a conserved sequence region in 1997 and named after cystathionine beta synthase, one of the proteins it is found in. CBS domains are also found in a wide variety of other proteins such as inosine monophosphate dehydrogenase, voltage gated chloride channels and AMP-activated protein kinase (AMPK). CBS domains regulate the activity of associated enzymatic and transporter domains in response to binding molecules with adenosyl groups such as AMP and ATP, or s-adenosylmethionine.