4IOI

Meditope-enabled trastuzumab in complex with CQFDLSTRRLKC

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Trastuzumab light chain	polymer	214	23502.0	1		Homo sapiens
2	B (B)	Trastuzumab heavy chain	polymer	223	23774.6	1		Homo sapiens
3	C (H)	Immunoglobulin G-binding protein A	polymer	55	6124.6	1	UniProt (P0A015) Pfam (PF02216)	Staphylococcus aureus	IgG-binding protein A, Staphylococcal protein A
4	D (E)	Protein L	polymer	65	6994.7	1	UniProt (Q51918) Pfam (PF02246)	Finegoldia magna
5	E (C)	meditope	polymer	12	1472.8	1
6	F, G, H, I, J (A, B, H, E, C)	water	water		18.0	541	Chemie (HOH)

Sequence modifications

H: 4 - 54 (UniProt: P0A015)

PDB	External Database	Details
Ser 0	-	expression tag
Gly 1	-	expression tag
Ser 2	-	expression tag
Tyr 3	-	expression tag

E: 20 - 81 (UniProt: Q51918)

PDB	External Database	Details
Ser 17	-	expression tag
Gly 18	-	expression tag
Ser 19	-	expression tag
Ile 34	Thr 490	engineered mutation
Ala 55	Asp 511	engineered mutation
Asn 73	Tyr 529	engineered mutation
His 74	Thr 530	engineered mutation
Met 75	Ile 531	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	61868.8
All*	Total formula weight	61868.8

*Water molecules are not included.