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1.E.14.1.1
LrgA holin-like protein (Bayles, 2003; Yang et al., 2005; Ranjit et al. 2011).  Functions in biofilm formation (Ranjit et al. 2011).  Calcium-chelating alizarin and other anthraquinones inhibit biofilm formation and modulate the expression of the cid/lrg genes (encoding the holin/antiholin system) (Lee et al. 2016). CidA and LrgA function as holins to support endolysin-induced lysis, and the lrgAB operon also facilitates pyruvate uptake during microaerobic and anaerobic growth (Laabei and Duggan 2022). The Staphylococcus aureus CidA and LrgA proteins are functional holins involved in the transport of by-products of carbohydrate metabolism (Endres et al. 2022).

Accession Number:P72358
Protein Name:LrgA
Length:147
Molecular Weight:15780.00
Species:Staphylococcus aureus [93061]
Number of TMSs:4
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate metabolite

Cross database links:

RefSeq: YP_498827.1   
Entrez Gene ID: 3920307   
Pfam: PF03788   
BioCyc: SAUR93061:SAOUHSC_00232-MONOMER   
KEGG: sao:SAOUHSC_002   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0019835 P:cytolysis
GO:0012501 P:programmed cell death

References (4)

[1] “Identification of LytSR-regulated genes from Staphylococcus aureus.”  Brunskill E.W.et.al.   8824633
[2] “The Staphylococcus aureus lrgAB operon modulates murein hydrolase activity and penicillin tolerance.”  Groicher K.H.et.al.   10714982
[3] “The Staphylococcus aureus cidAB operon: evaluation of its role in regulation of murein hydrolase activity and penicillin tolerance.”  Rice K.C.et.al.   12670989
[4] “Death's toolbox: examining the molecular components of bacterial programmed cell death.”  Rice K.C.et.al.   14617136

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MVVKQQKDAS KPAHFFHQVI VIALVLFVSK IIESFMPIPM PASVIGLVLL FVLLCTGAVK 
61:	LGEVEKVGTT LTNNIGLLFV PAGISVVNSL GVISQAPFLI IGLIIVSTIL LLICTGYVTQ 
121:	IIMKVTSRSK GDKVTKKIKI EEAQAHD