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1.B.46.1.1
The lipoprotein insertase, LolAB, of Gram-negative bacteria.  Genetic analysis revealed a robust and hierarchical recruitment of the LolA chaperone protein to the LolCDE lipoprotein transporter (Lehman et al. 2024).

Accession Number:P61316
Protein Name:LolA
Length:203
Molecular Weight:22497.00
Species:Escherichia coli [83333]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Periplasm1
Substrate lipoprotein

Cross database links:

DIP: DIP-35675N
RefSeq: AP_001521.1    NP_415411.2   
Entrez Gene ID: 948989   
Pfam: PF03548   
BioCyc: EcoCyc:G6465-MONOMER    ECOL168927:B0891-MONOMER   
KEGG: ecj:JW0874    eco:b0891   

Gene Ontology

GO:0030288 C:outer membrane-bounded periplasmic space
GO:0005515 F:protein binding
GO:0008565 F:protein transporter activity
GO:0042953 P:lipoprotein transport

References (13)

[1] “A novel periplasmic carrier protein involved in the sorting and transport of Escherichia coli lipoproteins destined for the outer membrane.”  Matsuyama S.et.al.   7628437
[2] “A 718-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 12.7-28.0 min region on the linkage map.”  Oshima T.et.al.   8905232
[3] “The complete genome sequence of Escherichia coli K-12.”  Blattner F.R.et.al.   9278503
[4] “Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.”  Hayashi K.et.al.   16738553
[5] “Comparing the predicted and observed properties of proteins encoded in the genome of Escherichia coli K-12.”  Link A.J.et.al.   9298646
[6] “Characterization of the RcsC->YojN->RcsB phosphorelay signaling pathway involved in capsular synthesis in Escherichia coli.”  Chen M.H.et.al.   11758943
[7] “Lipoprotein sorting signals evaluated as the LolA-dependent release of lipoproteins from the cytoplasmic membrane of Escherichia coli.”  Terada M.et.al.   11592971
[8] “Elucidation of the function of lipoprotein-sorting signals that determine membrane localization.”  Masuda K.et.al.   12032293
[9] “Aminoacylation of the N-terminal cysteine is essential for Lol-dependent release of lipoproteins from membranes but does not depend on lipoprotein sorting signals.”  Fukuda A.et.al.   12198129
[10] “Mutant of LolA, a lipoprotein-specific molecular chaperone of Escherichia coli, defective in the transfer of lipoproteins to LolB.”  Miyamoto A.et.al.   11587539
[11] “Dominant negative mutant of a lipoprotein-specific molecular chaperone, LolA, tightly associates with LolCDE.”  Miyamoto A.et.al.   12297303
[12] “A practical phasing procedure using the MAD method without the aid of XAFS measurements: successful solution in the structure determination of the outer-membrane lipoprotein carrier LolA.”  Takeda K.et.al.   12876347
[13] “Crystal structures of bacterial lipoprotein localization factors, LolA and LolB.”  Takeda K.et.al.   12839983
Structure:
1IWL   1UA8   2ZPC   2ZPD   3KSN   6F3Z   6FHM     

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MKKIAITCAL LSSLVASSVW ADAASDLKSR LDKVSSFHAS FTQKVTDGSG AAVQEGQGDL 
61:	WVKRPNLFNW HMTQPDESIL VSDGKTLWFY NPFVEQATAT WLKDATGNTP FMLIARNQSS 
121:	DWQQYNIKQN GDDFVLTPKA SNGNLKQFTI NVGRDGTIHQ FSAVEQDDQR SSYQLKSQQN 
181:	GAVDAAKFTF TPPQGVTVDD QRK