Gene Details:

• Gene ID: Vitvi14g01157
• Gene Symbol: VvHT1
• Gene Name: hexose transporter 1
• Genome: Vitis vinifera PN40024.v4
• Species: Vitis vinifera

Functional Descriptions:

• VvHT1 encodes a monosaccharide transporter expressed in the conducting complex of the grape berry phloem.
• Heterologous expression in yeast indicates that VvHT1 encodes a monosaccharide transporter with maximal activity at acidic pH (pH 4.5) and high affinity for glucose (Km=70 μM).
• Immunofluorescence and immunogold labelling experiments localized VvHT1 in the plasma membrane of the sieve element/companion cell interface and of the flesh cells.
• The expression and functional properties of VvHT1 suggests that it retrieves the monosaccharides needed to provide the energy necessary for cell division and cell growth at an early stage of berry development.

Function-related keywords:

• growth ,  development ,  cell-division ,  transporter ,  phloem ,  plasma-membrane ,  berry

Literature:

• VvHT1 encodes a monosaccharide transporter expressed in the conducting complex of the grape berry phloem.   DOI:  10.1093/jxb/eri142 ;  PMID:  15809282

Related News:

Gene Resources:

• NCBI ID: HQ323260.1
• UniProt accessions: E3VWT5

Orthologs:

Sequences: