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3.A.1.134.7
The VraFG ABC transporter interacts with GraXSR [GraX, Q7A2W7; GraS, A6QEW9; GraR, A6QEW8] to form a five- or six-component system required for cationic antimicrobial peptide sensing and resistance (Falord et al., 2012).  VraX has been termed a two component system connector and may not be a component of the transporter. VraFG may be a sensor rather than the transporter for the substrate peptide. The actual transporter regulated by VraFGX may have TC# 4.H.1.1.1 (MprF) (Falord et al. 2012). The extracellular loop of the membrane permease VraG interacts with GraS to sense cationic antimicrobial peptides in Staphylococcus aureus (Cho et al. 2021).

Accession Number:Q7A2W7
Protein Name:Protein VraX
Length:55
Molecular Weight:6500.00
Species:Staphylococcus aureus (strain Mu50 / ATCC 700699) [158878]
Substrate Cationic antimicrobial peptides

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FASTA formatted sequence
1:	MIIYRQYHHE GAPVYEIITK TFQHVSIKCD DSFSDTEIFK LLSLLQDDID HMKVS