4CQ1

Crystal structure of the neuronal isoform of PTB

Replaces:  4CKO

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...)	POLYPYRIMIDINE TRACT-BINDING PROTEIN 2	polymer	196	21949.1	8	UniProt (Q9UKA9) Pfam (PF13893) Pfam (PF00076)	HOMO SAPIENS (HUMAN)	NEURAL POLYPYRIMIDINE TRACT-BINDING PROTEIN, NEURALLY-ENRICHED HOMOLOG OF PTB, PTB-LIKE PROTEIN, NPTB
2	AA, I, K, L, N... (G, A, B, C, E...)	ZINC ION	non-polymer		65.4	12	Chemie (ZN)
3	BA, J, M, Q, R... (G, A, B, C, D...)	CHLORIDE ION	non-polymer		35.5	8	Chemie (CL)
4	CA, DA, EA, FA, GA... (A, B, C, D, E...)	water	water		18.0	782	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	175592.6
Non-Polymers*	Number of molecules	20
	Total formula weight	1068.5
All*	Total formula weight	176661.1

*Water molecules are not included.