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3.A.1.5.25
The ABC peptide/signalling peptide transporter. OptA binds peptides of 3-6 aas; OptS binds dipeptides. OptB,C,D are most similar to 3.A.1.5.19.

Accession Number:Q64K09
Protein Name:OptS
Length:550
Molecular Weight:59882.00
Species:Lactococcus lactis [1358]
Number of TMSs:1
Substrate Oligopeptides, peptides

Cross database links:

Pfam: PF00496   

Gene Ontology

GO:0005215 F:transporter activity
GO:0006810 P:transport

References (1)

[1] “A multifunction ABC transporter (Opt) contributes to diversity of peptide uptake specificity within the genus Lactococcus.”  Lamarque M.et.al.   15375130

External Searches:

  • Search: DB with
  • BLAST ExPASy (Swiss Institute of Bioinformatics (SIB) BLAST)
  • CDD Search (Conserved Domain Database)
  • Search COGs (Clusters of Orthologous Groups of proteins)
  • 2° Structure (Network Protein Sequence Analysis)

Analyze:

Predict TMSs (Predict number of transmembrane segments)
Window Size: Angle:  
Window Size: Angle:  
FASTA formatted sequence
1:	MQQGKIIGLS TVIALSGIIL VACGSKTSEQ KNIQFSIPTD VASLDTTILT DQYSYDVAGN 
61:	VEEGLTRVDS KGNAALALAK SIDVSKDGLT YTVTLKDNLK WSNGDKLTAK DFVYSWKRAV 
121:	DPKTGSEYAY LMGAVSGAND IISGKSSLDT LGIKAESDTE FTVTLAQPTP YFKFLLSEPV 
181:	YYPLDQKVVD KYGKQYGTSS DKTVYNGPFM FKSDKAWTGT NKNFSIYANP NYYDKSAVKS 
241:	KQIDFQVISN ANTGAQLYKQ GKLDFTLLST TDLINANKKT EGYTVFKQAR TDYIEYNQSG 
301:	KNASSPDAQK ALANQDIRQA LNLATNRAEV VKTALPGSTA ATSFTPVGMS KTSTGEDFAT 
361:	YAKQDYSYDP TKAKELWAKG LKELGLTKLS LSLEAAGDLA PSEATANFLQ TAYQQNLPGL 
421:	TVNLKLVPFK QRLNDAQNGN FDMVLSGWGG DYAEPSTFLQ LFTTGQSYND GKFSSKTYDD 
481:	AFKAATTTPD VLEPAKVDEH YKAAEAALYE GSYINPIDFQ ANPALMNPKI TGLEFHSTGL 
541:	AYDLKSAYVK