1TFX

COMPLEX OF THE SECOND KUNITZ DOMAIN OF TISSUE FACTOR PATHWAY INHIBITOR WITH PORCINE TRYPSIN

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	TRYPSIN	polymer	223	23493.5	2	UniProt (P00761) Pfam (PF00089) In PDB	Sus scrofa (pig)
2	C, D	TISSUE FACTOR PATHWAY INHIBITOR	polymer	58	6853.7	2	UniProt (P10646) Pfam (PF00014) In PDB	Homo sapiens (human)	TFPI, EPI, LACI
3	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4		water	water		18.0	143	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	60694.3
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	60774.5

*Water molecules are not included.