3MM0

Crystal structure of chimeric avidin

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...)	Avidin, Avidin-related protein 4/5	polymer	129	14400.3	12	UniProt (P02701) UniProt (P56734) Pfam (PF01382)	Gallus gallus (bantam chickens)
2	M, N, O, P, Q... (A, B, C, D, E...)	water	water		18.0	91	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H, I, K, M, N: 1 - 37 (UniProt: P02701)

PDB	External Database	Details
Gln -2	-	expression tag
Thr -1	-	expression tag
Val 0	-	expression tag

A, B, C, D, E, F, G, H, I, K, M, N: 38 - 60 (UniProt: P56734)
A, B, C, D, E, F, G, H, I, K, M, N: 61 - 128 (UniProt: P02701)

PDB	External Database	Details
Tyr 117	Ile 141	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	172803.0
All*	Total formula weight	172803.0

*Water molecules are not included.