1XF4

Structure of ligand-free Fab DNA-1 in space group P321 solved from crystals with perfect hemihedral twinning

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (L, A)	Fab light chain	polymer	214	23616.1	2	GenBank (498315) Pfam (PF07654) UniProt (by SIFTS) (P01837)	Mus musculus (house mouse)
2	B, D (H, B)	Fab heavy chain	polymer	230	24982.0	2	GenBank (3399661)	Mus musculus (house mouse)
3	E, F, G (L, A)	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
4	H, I, J, K (L, H, A, B)	water	water		18.0	35	Chemie (HOH)

Sequence modifications

H, B: 5 - 217 (GenBank: 3399661)

PDB	External Database	Details
Gln 1	-	cloning artifact
Val 2	-	cloning artifact
Lys 3	-	cloning artifact
Leu 4	-	cloning artifact
His 218	-	expression tag
His 219	-	expression tag
His 220	-	expression tag
His 221	-	expression tag
His 222	-	expression tag
His 223	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	97196.2
Non-Polymers*	Number of molecules	3
	Total formula weight	288.2
All*	Total formula weight	97484.4

*Water molecules are not included.