4V44

E. COLI (lacZ) BETA-GALACTOSIDASE IN COMPLEX WITH 2-F-LACTOSE

This is a non-PDB format compatible entry.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (A, B, C, D, E...)	Beta-Galactosidase	polymer	1023	116699.6	16	UniProt (P00722) Pfam (PF02837) Pfam (PF00703) Pfam (PF02836) Pfam (PF16353) Pfam (PF02929)	Escherichia coli	LACTASE; lacZ; beta-d-galactosidase;
2	AA, BA, CA, DA, EA... (a, b, c, d, e...)	2-deoxy-2-fluoro-beta-D-galactopyranose-(1-4)-beta-D-glucopyranose	branched		344.3	16	In PDB BIRD (PRD_900064) GlyTouCan (G04215ML)		2-deoxy-2-fluoro-beta-lactose
3	AB, BB, CC, DC, EB... (F, M, G, A, N...)	MAGNESIUM ION	non-polymer		24.3	32	Chemie (MG)
4	AC, BC, CB, DB, EC... (L, F, M, G, A...)	SODIUM ION	non-polymer		23.0	32	Chemie (NA)
5	AD, BD, CD, DD, ED... (I, J, K, L, M...)	water	water		18.0	2592	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P: 1 - 1023 (UniProt: P00722)

PDB	External Database	Details
Cme 748	Cys 748	modified residue
Cme 914	Cys 914	modified residue
Cme 1021	Cys 1021	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	16
	Total formula weight	1867194.3
Branched	Number of molecules	16
	Total formula weight	5508.6
Non-Polymers*	Number of molecules	64
	Total formula weight	1513.4
All*	Total formula weight	1874216.3

*Water molecules are not included.