5OSQ

ZP-N domain of mammalian sperm receptor ZP3 (crystal form II, processed in P21221)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Maltose-binding periplasmic protein,Zona pellucida sperm-binding protein 3	polymer	481	52948.9	2	UniProt (P0AEX9) UniProt (P10761) Pfam (PF01547) Pfam (PF00100)	Escherichia coli K-12	MBP,MMBP,Maltodextrin-binding protein,Sperm receptor,Zona pellucida glycoprotein 3,Zp-3,Zona pellucida protein C
2	C, D (C, D)	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	branched		342.3	2	In PDB BIRD (PRD_900001) GlyTouCan (G07411ON)		alpha-maltose
3	E, F, G, H, I... (A, B)	CALCIUM ION	non-polymer		40.1	6	Chemie (CA)
4	K (B)	TRIETHYLENE GLYCOL	non-polymer		150.2	1	Chemie (PGE)
5	L, M (A, B)	water	water		18.0	309	Chemie (HOH)

Sequence modifications

A, B: 2 - 368 (UniProt: P0AEX9)

PDB	External Database	Details
Met 1	-	initiating methionine
Thr 3	Ile 28	engineered mutation
Ala 360	Glu 385	engineered mutation
Ala 363	Lys 388	engineered mutation
Ala 364	Asp 389	engineered mutation
Asn 368	Arg 393	engineered mutation
Ala 369	-	linker
Ala 370	-	linker
Ala 371	-	linker

A, B: 372 - 473 (UniProt: P10761)

PDB	External Database	Details
Leu 474	-	expression tag
Glu 475	-	expression tag
His 476	-	expression tag
His 477	-	expression tag
His 478	-	expression tag
His 479	-	expression tag
His 480	-	expression tag
His 481	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	105897.9
Branched	Number of molecules	2
	Total formula weight	684.6
Non-Polymers*	Number of molecules	7
	Total formula weight	390.6
All*	Total formula weight	106973.1

*Water molecules are not included.