6V9Z

Cryo-EM structure of PCAT1 bound to its CtA peptide substrate

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	ABC-type bacteriocin transporter	polymer	730	81148.7	2	UniProt (A3DCU1) Pfam (PF03412) Pfam (PF00664) Pfam (PF00005) In PDB	Hungateiclostridium thermocellum (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372)
2	C, D	CtA	polymer	93	10217.9	2	UniProt (A3DCU2) In PDB	Hungateiclostridium thermocellum (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372)

Sequence modifications

A, B: 1 - 727 (UniProt: A3DCU1)

PDB	External Database	Details
Ser -2	-	expression tag
Asn -1	-	expression tag
Ala 0	-	expression tag
Ala 21	Cys 21	engineered mutation

C, D: 1 - 90 (UniProt: A3DCU2)

PDB	External Database	Details
Ser -2	-	expression tag
Asn -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	182733.2
All*	Total formula weight	182733.2

*Water molecules are not included.