5LUR

An avidin mutant

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Avidin	polymer	138	15863.8	2	UniProt (P02701) Pfam (PF01382) In PDB	Gallus gallus (Chicken)	Antidin
2	A, B	PROGESTERONE	non-polymer		314.5	2	Chemie (STR)
3	B	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
4		water	water		18.0	26	Chemie (HOH)

Sequence modifications

A, B: -3 - 128 (UniProt: P02701)

PDB	External Database	Details
Gln -3	Pro 21	engineered mutation
Thr -2	Gly 22	engineered mutation
Val -1	Leu 23	engineered mutation
Asn 0	Ser 24	engineered mutation
Arg 13	Asp 37	engineered mutation
Met 14	Leu 38	engineered mutation
Asn 15	Gly 39	engineered mutation
His 16	Ser 40	engineered mutation
Ala 35	Thr 59	engineered mutation
Thr 36	Ala 60	engineered mutation
Asn 38	Thr 62	engineered mutation
Tyr 117	Ile 141	engineered mutation
His 129	-	expression tag
His 130	-	expression tag
His 131	-	expression tag
His 132	-	expression tag
His 133	-	expression tag
His 134	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	31727.6
Non-Polymers*	Number of molecules	3
	Total formula weight	664.4
All*	Total formula weight	32391.9

*Water molecules are not included.