8U4R

Structure of REGN7663-Fab bound CXCR4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	L	REGN7663 Fab light chain	polymer	219	24185.9	1		Homo sapiens (human)
2	H	REGN7663 Fab heavy chain	polymer	240	25799.9	1		Homo sapiens (human)
3	R	C-X-C chemokine receptor type 4	polymer	632	71063.6	1	UniProt (P61073) Pfam (PF12109) Pfam (PF00001) Pfam (PF01353) UniProt (by SIFTS) (P42212) In PDB	Homo sapiens (human)
4	R	CHOLESTEROL	non-polymer		386.7	1	Chemie (CLR)

Sequence modifications

R: 2 - 352 (UniProt: P61073)

PDB	External Database	Details
Met -17	-	initiating methionine
Lys -16	-	expression tag
Thr -15	-	expression tag
Ile -14	-	expression tag
Ile -13	-	expression tag
Ala -12	-	expression tag
Leu -11	-	expression tag
Ser -10	-	expression tag
Tyr -9	-	expression tag
Ile -8	-	expression tag
Phe -7	-	expression tag
Cys -6	-	expression tag
Leu -5	-	expression tag
Val -4	-	expression tag
Phe -3	-	expression tag
Ala -2	-	expression tag
Gly -1	-	expression tag
Ala 0	-	expression tag
Pro 1	-	expression tag
Ser 119	Asn 119	conflict

R: 353 - 614 (PDB: 8U4R)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	121049.4
Non-Polymers*	Number of molecules	1
	Total formula weight	386.7
All*	Total formula weight	121436.1

*Water molecules are not included.