3MMK

The structural basis for partial redundancy in a class of transcription factors, the lim-homeodomain proteins, in neural cell type specification

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)	Fusion of LIM/homeobox protein Lhx4, linker, Insulin gene enhancer protein ISL-2	polymer	169	18649.3	2	UniProt (P53776) UniProt (Q9CXV0) Pfam (PF00412)	Mus musculus (mouse)	LIM homeobox protein 4
2	C, D, E, F, J... (A, B)	ZINC ION	non-polymer		65.4	8	Chemie (ZN)
3	G, H, I, N (A, B)	CHLORIDE ION	non-polymer		35.5	4	Chemie (CL)
4	O, P (A, B)	water	water		18.0	31	Chemie (HOH)

Sequence modifications

A, B: 24 - 149 (UniProt: P53776)

PDB	External Database	Details
Gly 22	-	expression tag
Ser 23	-	expression tag

A, B: 261 - 271 (PDB: 3MMK)
A, B: 272 - 301 (UniProt: Q9CXV0)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	37298.5
Non-Polymers*	Number of molecules	12
	Total formula weight	665.1
All*	Total formula weight	37963.6

*Water molecules are not included.