Annotations: 7NB6

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E	PF01594	AI-2E family transporter (AI-2E_transport)	AI-2E family transporter	This family includes four different proteins from E. coli alone. One of them, YdgG or TqsA, has been shown to mediate transport of the quorum-sensing signal autoinducer 2 (AI-2). It is not clear if TqsA enhances secretion of AI-2 or inhibits AI-2 upt ...	This family includes four different proteins from E. coli alone. One of them, YdgG or TqsA, has been shown to mediate transport of the quorum-sensing signal autoinducer 2 (AI-2). It is not clear if TqsA enhances secretion of AI-2 or inhibits AI-2 uptake. By altering the intracellular concentration of AI-2, TqsA affects gene expression in biofilms and biofilm formation [1]. TsqA belongs to the AI-2 exporter (AI-2E) superfamily [2].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E	AI-2 transport protein TqsA	efflux transmembrane transporter activity transporter activity transmembrane transporter activity	transmembrane transport localization transport polyol transmembrane transport cellular process organic hydroxy compound transport autoinducer AI-2 transmembrane transport establishment of localization regulation of biological process response to stimulus signaling quorum sensing biological regulation cell-cell signaling transmembrane transport localization transport polyol transmembrane transport cellular process organic hydroxy compound transport autoinducer AI-2 transmembrane transport establishment of localization regulation of biological process response to stimulus signaling quorum sensing biological regulation cell-cell signaling detection of cell density detection of biotic stimulus response to biotic stimulus cell communication detection of stimulus	cell periphery cellular anatomical structure plasma membrane membrane

Chains	Accession	Name	Type
A, B, C, D, E	IPR002549	Transmembrane protein TqsA-like	Family

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E	OPM	Transmembrane	Alpha-helical polytopic	Autoinducer-2 exporter	Autoinducer-2 exporter

Chains	External Link	Comment
A, B, C, D, E	PDBTM	Annotated as membrane protein by PDBTM

Chains	External Link	Comment
A, B, C, D, E	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Autoinducer Export Superfamily	TqsA autoinducer-2 exporter

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

7NB6 | pdb_00007nb6