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Table 2 Functional annotation analysis of differentially expressed genes

From: Identification of target genes for wild type and truncated HMGA2 in mesenchymal stem-like cells

Biological processes affected by over-expression of wild type and truncated HMGA2

Vascular development (4 of 66 up-regulated genes)

p = 0.039

Response to wounding (17 of 139 down-regulated genes)

p < 0.001

Signal transduction (40/139)

p < 0.001

Chemotaxis (11/139)

p < 0.001

Cytosolic calcium ion homeostasis (5/139)

p < 0.001

Phosphate transport (5/139)

p = 0.0017

Regulation of cell proliferation (11/139)

p = 0.0033

Cell migration (8/139)

p = 0.0057

Cell recognition (3/139)

p = 0.027

Epithelial cell differentiation (3/139)

p = 0.026

Wound healing (4/139)

p = 0.042

Biological processes affected by over-expression of wild type HMGA2

Multi-cellular organismal development (20 of 84 up-regulated genes)

p = 0.0011

Response to hormone stimulus (4/84)

p = 0.0034

Regulation of signal transduction (7/84)

p = 0.022

Pyridine nucleotide biosynthetic process (3 of 99 down-regulated genes)

p = 0.0017

Steroid hormone receptor activity (3/99)

p = 0.0032

Negative regulation of transcription factor activity (3/99)

p = 0.0034

Positive regulation of transcription (7/99)

p = 0.0065

Response to external stimulus (8/99)

p = 0.042

Biological processes affected by over-expression of truncated HMGA2

Regulation of transcription (61 of 258 up-regulated genes)

p < 0.001

Intracellular protein transport across a membrane (6/258)

p = 0.0032

Membrane organization and biogenesis (11/258)

p = 0.011

Ras protein signaling transduction (9/258)

p = 0.031

Regulation of cytoskeleton organization and biogenesis (4/258)

p = 0.042

Antigen processing and presentation (10 of 239 down-regulated genes)

p < 0.001

Multi-cellular organismal development (41/239)

p = 0.0021

Cell adhesion (16/239)

p = 0.019

Eye morphogenesis (3/239)

p = 0.035

  1. The genes were classified into biological processes using gene ontology terms. Each biological process was determined if it was significantly over- or underrepresented (p < 0.05) by comparing the observed frequency of genes to the expected frequency of genes on the Affymetrix GeneChip that cover 50 547 known genes. Significantly over- or under-represented processes were grouped and ranked according to the geometric mean of their p-values. A representative annotation term for each cluster, the number of genes associated with the term and its p-value was listed.