2ZV6

Crystal structure of human squamous cell carcinoma antigen 1

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 (A, B, C)	Serpin B3	polymer	401	45894.8	3	UniProt (P29508) Pfam (PF00079)	Homo sapiens (Human)	Squamous cell carcinoma antigen 1, SCCA-1, Protein T4-A
2	D, E, F (A, B, C)	water	water		18.0	312	Chemie (HOH)

Sequence modifications

A, B, C: 2 - 390 (UniProt: P29508)

PDB	External Database	Details
Met -10	-	initiating methionine
Arg -9	-	expression tag
Gly -8	-	expression tag
Ser -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
Gly 0	-	expression tag
Ser 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	137684.4
All*	Total formula weight	137684.4

*Water molecules are not included.