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4.A.3.1.1
Lactose (Lac) porter, LacEF (Kowolik and Hengstenberg 1998).  This system is 87% identical to the LacEF ortholog in Streptococcus mutans (Rosey and Stewart 1992).

Accession Number:P11162
Protein Name:PtlB aka LACE
Length:570
Molecular Weight:62447.00
Species:Staphylococcus aureus [1280]
Number of TMSs:11
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate alpha-lactose

Cross database links:

Pfam: PF02378    PF02302   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane
GO:0016301 F:kinase activity
GO:0008982 F:protein-N(PI)-phosphohistidine-sugar phosph...
GO:0005529 F:sugar binding
GO:0005351 F:sugar:hydrogen symporter activity
GO:0009401 P:phosphoenolpyruvate-dependent sugar phospho...

References (1)

[1] “Identification of the genes for the lactose-specific components of the phosphotransferase system in the lac operon of Staphylococcus aureus.”  Breidt F. Jr.et.al.   2824493

External Searches:

Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MMQKLIAQIE KGKPFFEKLS RNIYLRAIRD GFISAMPVIL FSSIFLLIAY VPNIFGFKWD 
61:	KGMEAILMKP YNYTMGLVAF LVAGTTAKSL TDSFNRKLES TNQINFISTM QAAMCGFLFL 
121:	ASDPAKDGGF LSAFMGTKGL LTAFLSAFVT VIVYNFCVKR NITIKMPKEV PPNISQVFKD 
181:	LIPFSAVIII LYALDLVIRN SFKSNVAEGI LKLFEPLFTA ADGWIGVTII FGAFALFWFV 
241:	GIHGPSIVEP AIAAITYANI EANFKLLQAG EHADKIITSG TQMFIVTFGG TGATLVVPFM 
301:	FMWMTKSKRN KAIGRASVVP TFFGVNEPIL FGAPLVLNPV FFIPFVLAPI VNVWIFKLFV 
361:	EVLGMNSFSV NLPWTTPGPL GIIMGTGFGL WSFVLAITLI VVDIIIYYPF LKVYDSEILD 
421:	EEEGRKESNS DLKEKVAANF DTKKADSILA ASGVSDDAAK ASNITEQTNV LVLCAGGGTS 
481:	GLLANALNKA AEEYHVPVKA AAGGYGAHMD IMKEYQLIIL APQVASNYED IKQDTDRLGI 
541:	KLAKTQGAEY IKLTRDGQAA LDFVQQQFEN