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Potato locus kunitz-type trypsin inhibitor

Locus details

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Locus synonyms 4: POTTRPIA1 POTTRPIA2 POTTRPIB StKTI [Add/Remove]

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Created on: 2006-12-21 Last updated on: 2011-12-16 by

Potato-TXB 1992

Links to external databases

kunitz-type trypsin inhibitor is on PhyloGenes

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Notes and figures (0)

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Accessions and images (0)

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Alleles (0)

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Associated loci (0)

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Associated loci - graphical view

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unprocessed genomic sequence region underlying this gene

mRNA PGSC0003DMT400026271

Ontology terms

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terms associated with this mRNA

cDNA sequence

spliced cDNA sequence, including UTRs

Protein sequence

translated polypeptide sequence

Gene model matches

SGN Unigenes

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GenBank accessions

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U59272 Solanum tuberosum cysteine proteinase inhibitor 10 precursor, mRNA, partial cds.
U59273 Solanum tuberosum cysteine proteinase inhibitor 8 precursor, mRNA, partial cds.
U59274 Solanum tuberosum cysteine proteinase inhibitor 7 precursor, mRNA, partial cds.
U59275 Solanum tuberosum cysteine proteinase inhibitor 6 precursor, mRNA, partial cds.
U59276 Solanum tuberosum cysteine proteinase inhibitor 5 precursor, mRNA, partial cds.
U59277 Solanum tuberosum cysteine proteinase inhibitor 3 precursor, mRNA, partial cds.
M22143 Potato open reading frame bearing homology to Kunitz trypsin inhibitor (winged bean), partial cds, clone p34021.
M22145 Potato open reading frame bearing homology to Kunitz trypsin inhibitor (winged bean), partial cds, clone p34021.
M22144 Potato open reading frame bearing homology to Kunitz trypsin inhibitor (winged bean), partial cds, clone p340.
AF459077 Solanum tuberosum clone 1421 putative Kunitz-type tuber invertase inhibitor precursor mRNA, partial cds.
AF459078 Solanum tuberosum clone 1422 putative Kunitz-type tuber invertase inhibitor precursor mRNA, partial cds.
AF459079 Solanum tuberosum clone P9B1 putative Kunitz-type tuber invertase inhibitor precursor mRNA, partial cds.
AF459080 Solanum tuberosum clone P9B4 putative Kunitz-type tuber invertase inhibitor precursor mRNA, partial cds.
AF459081 Solanum tuberosum clone S5E6 putative Kunitz-type tuber invertase inhibitor precursor mRNA, partial cds.
AF459082 Solanum tuberosum clone P3C3 putative Kunitz-type tuber invertase inhibitor precursor mRNA, partial cds.
AF459083 Solanum tuberosum clone P3C4 putative Kunitz-type tuber invertase inhibitor precursor mRNA, partial cds.
AF492357 Solanum tuberosum putative cysteine proteinase inhibitor precursor P7B11 mRNA, partial cds.
AY089961 Solanum tuberosum putative cysteine proteinase inhibitor precursor 1423 mRNA, partial cds.
AY089962 Solanum tuberosum putative cysteine proteinase inhibitor precursor P7G8 mRNA, partial cds.
X13181 Potato mRNA for tuber protein p340/p34021, put. trypsin inhibitor.
X56874 S.tuberosum mRNA for trypsin inhibitor.
AB061247 Solanum tuberosum StKTI mRNA for kunitz-type trypsin inhibitor, partial cds.
AY594178 Solanum tuberosum putative Kunitz-type tuber invertase inhibitor mRNA, complete cds.
X70376 S.tuberosum gene for serine proteinase inhibitor (kunitz-type).

Other genome matches

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Literature annotations [3]

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Nucleotide sequence of a cDNA encoding the putative trypsin inhibitor in potato tuber. Plant molecular biology (1991)
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Yamagishi, K. Mitsumori, C. Kikuta, Y. Plant molecular biology. 1991. 17(2). 287-8.

Potato cysteine proteinase inhibitor gene family: molecular cloning, characterisation and immunocytochemical localisation studies. Plant molecular biology (1997)
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Potato cysteine proteinase inhibitors (PCPIs) represent a distinct group of proteins as they show no homology to any other known cysteine proteinase inhibitor superfamilies, but they all belong to the Kunitz-type soybean trypsin inhibitor family. cDNA clones for five PCPIs have been isolated and sequenced. Amino acid substitutions occurring in the limited regions forming loops on the surface of these proteins suggest a further classification of PCPIs into three subgroups. Accumulation of PCPI was observed in vacuoles of stems after treatment with jasmonic acid (JA) using immunocytochemical localisation, implying that these inhibitors are part of a potato defence mechanism against insects and pathogens. Genomic DNA analysis show that PCPIs form a multigene family and suggest that their genes do not possess any introns.

Gruden, K. Strukelj, B. Ravnikar, M. Poljsak, Prijatelj. Mavric, I. Brzin, J. Pungercar, J. Kregar, I. Plant molecular biology. 1997. 34(2). 317-23.

Structural diversity and organization of three gene families for Kunitz-type enzyme inhibitors from potato tubers (Solanum tuberosum L.). Molecular genetics and genomics : MGG (2003)
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In the potato, Kunitz-type enzyme inhibitors are abundant and highly polymorphic small proteins found in tubers. DNA sequence analysis of 1596 unselected ESTs (expressed sequence tags) from mature tubers of the cultivars Provita and Saturna resulted in the identification of 55 different DNA sequences with high sequence similarity to Kunitz-type enzyme inhibitors. The frequency of Kunitz-type inhibitor ESTs in Provita was four times higher than in Saturna tubers, and none of the Provita ESTs was identical to any of the Saturna ESTs. A phenogram constructed from the deduced amino acid sequences of the inhibitors revealed three major homology groups-A, B and C. Group A inhibitors were all derived from Provita ESTs. Inhibitor groups A and B were more similar to each other than to group C inhibitors, and for most members within-group similarity was at least 90%. Non-conservative amino acid substitutions and insertion/deletion polymorphisms suggest functional differentiation between members of the gene family. A minimum of 21 genes for Kunitz-type enzyme inhibitors (six for group A, nine for group B and six for group C) was estimated to exist in the potato genome. Genetic mapping and the identification of BAC (bacterial artificial chromosome) clones containing more than one member of the gene family indicated that most inhibitor genes of groups A, B and C are organized in a cluster that maps to a single region on potato chromosome III.

Heibges, A. Glaczinski, H. Ballvora, A. Salamini, F. Gebhardt, C. Molecular genetics and genomics : MGG. 2003. 269(4). 526-34.

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Accessions	Seedlots
Accessions		Breeding Program	Seedlot Name	Contents	Seedlot Location	Count	Weight(g)

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