4MVL

Crystal structure of an engineered lipocalin (Anticalin H1GA) in complex with the Alzheimer amyloid peptide Abeta1-40

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	Neutrophil gelatinase-associated lipocalin	polymer	188	21449.2	4	UniProt (P80188) Pfam (PF00061) In PDB	Homo sapiens (human)	NGAL, 25 kDa alpha-2-microglobulin-related subunit of MMP-9, Lipocalin-2, Oncogene 24p3, Siderocalin LCN2, p25
2	E, F, G, H	Beta-amyloid protein 40	polymer	40	4335.9	4	UniProt (P05067) Pfam (PF03494) In PDB	Homo sapiens	Beta-APP40
3		water	water		18.0	129	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 178 (UniProt: P80188)

PDB	External Database	Details
His 28	Gln 48	engineered mutation
Ala 36	Leu 56	engineered mutation
Val 40	Ala 60	engineered mutation
Leu 41	Ile 61	engineered mutation
Leu 49	Gln 69	engineered mutation
Gly 70	Leu 90	engineered mutation
Asp 72	Arg 92	engineered mutation
Asp 73	Lys 93	engineered mutation
Leu 77	Asp 97	engineered mutation
Lys 79	Trp 99	engineered mutation
Ser 87	Cys 107	engineered mutation
Arg 96	Asn 116	engineered mutation
Glu 100	Tyr 120	engineered mutation
Gly 103	Leu 123	engineered mutation
Trp 106	Tyr 126	engineered mutation
Glu 125	Lys 145	engineered mutation
Ala 127	Ser 147	engineered mutation
Thr 132	Tyr 152	engineered mutation
Asn 134	Lys 154	engineered mutation
Ser 179	-	expression tag
Ala 180	-	expression tag
Trp 181	-	expression tag
Ser 182	-	expression tag
His 183	-	expression tag
Pro 184	-	expression tag
Gln 185	-	expression tag
Phe 186	-	expression tag
Glu 187	-	expression tag
Lys 188	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	103140.4
All*	Total formula weight	103140.4

*Water molecules are not included.