1CE3 - JenaLib

Title :   PUTATIVE ANCESTRAL PROTEIN ENCODED BY A SINGLE SEQUENCE REPEAT OF THE MULTIDOMAIN PROTEINASE INHIBITOR FROM NICOTIANA ALATA

Authors :   M. J. Scanlon, M. C. S. Lee, M. A. Anderson, D. J. Craik

Date :   14 Mar 99 (Deposition) - 27 Mar 99 (Release) - 24 Feb 09 (Revision)

Method :   SOLUTION NMR

Resolution :   NOT APPLICABLE

Chains :   NMR Structure  : A  (20x)

Keywords :   Protease Inhibitor, Circular Permutation, Nicotiana Alata (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. J. Scanlon, M. C. Lee, M. A. Anderson, D. J. Craik
Structure Of A Putative Ancestral Protein Encoded By A Single Sequence Repeat From A Multidomain Proteinase Inhibitor Gene From Nicotiana Alata.
Structure Fold. Des. V. 7 793 1999
PubMed-ID: 10425681 | Reference-DOI: 10.1016/S0969-2126(99)80103-8
(for further references see the PDB file header)

Compounds

Molecule 1 - PROTEIN (API)
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Fragment	:	FIRST SEQUENCE REPEAT
	Organism Common	:	PERSIAN TOBACCO
	Organism Scientific	:	NICOTIANA ALATA
	Organism Taxid	:	4087
	Other Details	:	SINGLE SEQUENCE REPEAT FROM A MULTIDOMAIN PROTEINASE INHIBITOR

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (4, 4)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

NMR Structure

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

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Chain A from PDB  Type:PROTEIN  Length:54
 aligned with Q40378_NICAL | Q40378 from UniProtKB/TrEMBL  Length:397

    Alignment length:54
                                    38        48        58        68        78    
          Q40378_NICAL   29 AKACTLNCDPRIAYGVCPRSEEKKNDRICTNCCAGTKGCKYFSDDGTFVCEGES 82
               SCOP domains d1ce3a_ A: Multidomain proteinase inhibitor            SCOP domains
               CATH domains 1ce3A00 A:1-54  [code=3.30.60.30, no name defined]     CATH domains
               Pfam domains ------------------------------------------------------ Pfam domains
         Sec.struct. author .............eee.......................eee............ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------ Transcript
                  1ce3 A  1 MKACTLNCDPRIAYGVCPRSEEKKNDRICTNCCAGTKGCKYFSDDGTFVCEGES 54
                                    10        20        30        40        50

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (2, 2)

NMR Structure(hide GO term definitions)

Chain A (Q40378_NICAL | Q40378)

molecular function
	GO:0004867	serine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.

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