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3.A.1.110.13
Protein export system, PrtD of 564 aas and 6 TMSs. The 3.15 Å structure has been solved (Morgan et al. 2017).  The structure suggests a substrate entry window just above the transporter's nucleotide binding domains. Highly kinked transmembrane helices, which frame a narrow channel, not observed in canonical peptide transporters, are likely involved in substrate translocation. The PrtD structure supports a polypeptide transport mechanism distinct from alternating access (Morgan et al. 2017).

Accession Number:O67184
Protein Name:ABC transporter (HlyB subfamily)
Length:564
Molecular Weight:63100.00
Species:Aquifex aeolicus (strain VF5) [224324]
Number of TMSs:5
Substrate proteins

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FASTA formatted sequence
1:	MATKENTENV LRSYLAKYKK TLIIVGLFSL FINILFLLPS IYMLAVYDIV VPSTSVPTLL 
61:	VITALAVVLY FALGLLQSVR AKVMQIISLK LDSELNKEVF TSSFEYAIRN PSKASAQPIN 
121:	DLYQLKQFLT SPVLFAIFDL PWVPIYFGVL FVFHVYYGVM AILSMAVIVA LAILNEYITK 
181:	KKLKESNELL VRSTNFLNRA LLNAEVVEAL GMRNNLYKKW MNFYSKHLSA FEEATDRNNF 
241:	LSNLTRIFRI MAQSLMLGLG GYLAIKHEIT TGMIVAGSIL LGRILGPIDT IVNGWRQIGN 
301:	TKVAYTRLNE FLKFLRFKRE VSVKLPEPKG EIELSNVVVV PPEGKTPVLR NINMRILPGE 
361:	FVAIIGPSGS GKSSLVRTIL GIWLPVHGTV EIDGADLKQW DRDYFGKFVG YLPQDIELFE 
421:	GTVAENIARF GELDSEKIIE AAKLSGAHDV IIKLPDGYDT YIGPGGITLS GGQRQRIALA 
481:	RALYGNPRIV ILDEPDSNLD EQGEQALYNA LIELKKRKVT TIIVSHRIRL LNLVDKIAIM 
541:	QDGTLKAFGK ADIIIQKLLR KNVN