3QE5

Complete structure of Streptococcus mutans Antigen I/II carboxy-terminus

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Major cell-surface adhesin PAc	polymer	516	57376.6	2	UniProt (P11657) Pfam (PF17998) Pfam (PF16364)	Streptococcus mutans	Antigen I/II
2	C, D, E, L, M... (A, B)	CALCIUM ION	non-polymer		40.1	6	Chemie (CA)
3	F (A)	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4	G, H, I, J, K... (A, B)	alpha-D-glucopyranose	non-polymer		180.2	8	Chemie (GLC)
5	R, S (A, B)	water	water		18.0	324	Chemie (HOH)

Sequence modifications

A, B: 992 - 1486 (UniProt: P11657)

PDB	External Database	Details
Met 979	-	expression tag
Ala 980	-	expression tag
Ser 981	-	expression tag
Met 982	-	expression tag
Thr 983	-	expression tag
Gly 984	-	expression tag
Gly 985	-	expression tag
Gln 986	-	expression tag
Gln 987	-	expression tag
Met 988	-	expression tag
Gly 989	-	expression tag
Arg 990	-	expression tag
Ile 991	-	expression tag
Lys 1382	Glu 1381	cloning artifact
Leu 1487	-	expression tag
Glu 1488	-	expression tag
His 1489	-	expression tag
His 1490	-	expression tag
His 1491	-	expression tag
His 1492	-	expression tag
His 1493	-	expression tag
His 1494	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	114753.2
Non-Polymers*	Number of molecules	15
	Total formula weight	1706.0
All*	Total formula weight	116459.2

*Water molecules are not included.