4O1J

Crystal structures of two tetrameric beta-carbonic anhydrases from the filamentous ascomycete Sordaria macrospora.

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)	Carbonic anhydrase	polymer	255	27414.1	2	UniProt (C1L335) Pfam (PF00484) UniProt (by SIFTS) (F7VW42)	Sordaria macrospora
2	C, E (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	D (A)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
4	F, G (A, B)	water	water		18.0	160	Chemie (HOH)

Sequence modifications

A, B: 2 - 234 (UniProt: C1L335)

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
Ala 235	-	expression tag
Met 236	-	expression tag
Gly 237	-	expression tag
Arg 238	-	expression tag
Pro 239	-	expression tag
Ala 240	-	expression tag
Ala 241	-	expression tag
Lys 242	-	expression tag
Leu 243	-	expression tag
Asn 244	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	54828.1
Non-Polymers*	Number of molecules	3
	Total formula weight	166.3
All*	Total formula weight	54994.4

*Water molecules are not included.