ISDA: 1FAN

Deposition Date 1992-08-21

Release Date 1993-10-31

Last Version Date 2024-11-20

Entry Detail

PDB ID:

1FAN

Keywords:

SERINE PROTEASE INHIBITOR

Title:

CREVICE-FORMING MUTANTS IN THE RIGID CORE OF BOVINE PANCREATIC TRYPSIN INHIBITOR: CRYSTAL STRUCTURES OF F22A, Y23A, N43G, AND F45A

Biological Source:

Source Organism:

Bos taurus (Taxon ID: 9913)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:BOVINE PANCREATIC TRYPSIN INHIBITOR
Chain IDs:A
Chain Length:58
Number of Molecules:1
Biological Source:Bos taurus

UniProt ID:P00974 Pfam ID:PF00014

Primary Citation

Crevice-forming mutants in the rigid core of bovine pancreatic trypsin inhibitor: crystal structures of F22A, Y23A, N43G, and F45A.

Danishefsky, A.T, Housset, D, Kim, K.S, Tao, F, Fuchs, J, Woodward, C, Wlodawer, A, Tao, K.-S.Kim.F, Fuchs, J, Danishefsky, A.T, Housset, D, Wlodawer, A, Woodward, C, Housset, D, Kim, K.-S, Fuchs, J, Woodward, C, Wlodawer, A, Eigenbrot, C, Randal, M, Kossiakoff, A.A, Hynes, T.R, Randal, M, Kennedy, L.A, Eigenbrot, C, Kossiakoff, A.A, Wlodawer, A, Nachman, J, Gilliland, G.L, Gallagher, W, Woodward, C, Wlodawer, A, Deisenhofer, J, Huber, R, Wlodawer, A, Walter, J, Huber, R, Sjolin, L, Walter, J, Huber, R.Show

Protein Sci. 2 577 587 (1993)

PMID: 8518731

Abstact

Crystal structures of four mutants of bovine pancreatic trypsin inhibitor (F22A, Y23A, N43G, and F45A), engineered to alter their stability properties, have been determined. The mutated residues, which are highly conserved among Kunitz-type inhibitors, are located in the rigid core of the molecule. Replacement of the partially buried bulky residues of the wild-type protein with smaller residues resulted in crevices open to the exterior of the molecule. The overall three-dimensional structure of these mutants is very similar to that of the wild-type protein and only small rearrangements are observed among the atoms lining the crevices.

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Primary Citation of related structures