Identification
Name:Secretion monitor
Synonyms:Not Available
Gene Name:secM
Enzyme Class:Not Available
Biological Properties
General Function:regulation of translation
Specific Function:Regulates secA expression by translational coupling of the secM secA operon. Ribosomes translating the C-terminal region of secM can disrupt an RNA repressor helix that normally blocks secA translation initiation, derepressing the expression of secA. Translational pausing of secM at Pro-166 under secretion-limiting conditions increases the duration of the disruption and thus increases secA expression. This is controlled by interaction of the secM signal peptide with secA and the translocon, possibly by secA pulling the paused secM out of the ribosome. The arrest sequence (150-FXXXXWIXXXXGIRAGP-166) is sufficient to cause arrest of unrelated proteins. Elongation arrest can be alleviated by mutations in the 23S rRNA or in ribosomal protein L22.
Cellular Location:Not Available
SMPDB Pathways:Not Available
KEGG Pathways:
Metabolites:
ECMDB IDNameView
GO Classification:
Function
cytosol
periplasmic space
regulation of translation
translation regulator activity
Gene Properties
Blattner:Not Available
Gene OrientationNot Available
Centisome Percentage:Not Available
Left Sequence EndNot Available
Right Sequence EndNot Available
Gene Sequence:
>513
gtgagtggaatactgacgcgctggcgacagtttggtaaacgctacttctggccgcatctc
ttattagggatggttgcggcgagtttaggtttgcctgcgctcagcaacgccgccgaacca
aacgcgcccgcaaaagcgacaacccgcaaccacgagccttcagccaaagttaactttggt
caattggccttgctggaagcgaacacacgccgcccgaattcgaactattccgttgattac
tggcatcaacatgccattcgcacggtaatccgtcatctttctttcgcaatggcaccgcaa
acactgcccgttgctgaagaatctttgcctcttcaggcgcaacatcttgcattactggat
acgctcagcgcgctgctgacccaggaaggcacgccgtctgaaaagggttatcgcattgat
tatgcgcattttaccccacaagcaaaattcagcacgcccgtctggataagccaggcgcaa
ggcatccgtgctggccctcaacgcctcacctaa
Protein Properties
Pfam Domain Function:Not Available
Protein Residues:170
Protein Molecular Weight:18879
Protein Theoretical pI:Not Available
Signaling Regions:
  • 1-37
Transmembrane Regions:Not Available
Protein Sequence:
>Secretion monitor
MSGILTRWRQFGKRYFWPHLLLGMVAASLGLPALSNAAEPNAPAKATTRNHEPSAKVNFG
QLALLEANTRRPNSNYSVDYWHQHAIRTVIRHLSFAMAPQTLPVAEESLPLQAQHLALLD
TLSALLTQEGTPSEKGYRIDYAHFTPQAKFSTPVWISQAQGIRAGPQRLT
References
External Links:
ResourceLink
Uniprot ID:P62395
Uniprot Name:SECM_ECOLI
CCDB:SECM_ECOLI
General Reference:Not Available