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Table 1 Functional classification of genes differentially expressed during commitment phase

From: Genomic expression during human myelopoiesis

GO biological process terms

p-value

GO biological process terms

p-value

Genes up-regulated in erythroblasts

heme biosynthesis

8.3593E-09

tRNA metabolism

4.7686E-04

heme metabolism

4.1178E-08

nitrogen compound metabolism

0.0011

pigment biosynthesis

7.8243E-08

cholesterol biosynthesis

0.0021

porphyrin biosynthesis

8.0158E-08

amino acid activation

0.0022

pigment metabolism

1.8805E-07

tRNA aminoacylation for protein translation

0.0022

porphyrin metabolism

2.5313E-07

tRNA aminoacylation

0.0022

carboxylic acid metabolism

3.5431E-07

electron transport

0.0023

organic acid metabolism

4.0819E-07

amino acid and derivative metabolism

0.0025

secondary metabolism

5.8601E-07

amine metabolism

0.0037

heterocycle metabolism

4.7133E-06

lipid metabolism

0.0037

cellular biosynthesis

6.9372E-06

steroid biosynthesis

0.0041

cofactor metabolism

1.0534E-05

cholesterol metabolism

0.0041

cofactor biosynthesis

1.9914E-05

iron ion homeostasis

0.0042

generation of precursor metabolites and energy

3.9831E-05

sterol biosynthesis

0.0045

cellular metabolism

5.6290E-05

mitotic cell cycle

0.0059

lipid biosynthesis

1.6546E-04

alcohol metabolism

0.0060

cellular lipid metabolism

2.3765E-04

sterol metabolism

0.0061

amino acid metabolism

4.3568E-04

  

Genes up-regulated in megakaryoblasts

hemostasis

0.0010

positive regulation of cell proliferation

0.0024

endocytosis

0.0011

steroid metabolism

0.0024

cellular lipid metabolism

0.0012

lipid biosynthesis

0.0026

wound healing

0.0014

regulation of receptor mediated endocytosis

0.0034

lipid metabolism

0.0020

localization of cell

0.0049

alcohol metabolism

0.0020

cell motility

0.0049

regulation of body fluids

0.0024

cytoskeleton organization and biogenesis

0.0081

transport

0.0024

cholesterol biosynthesis

0.0089

Genes up-regulated in monoblasts

response to biotic stimulus

6.3071E-15

antimicrobial humoral response

3.1669E-04

immune response

2.8466E-13

detection of stimulus

6.8750E-04

defense response

7.3698E-13

protein kinase cascade

0.0010

response to pest, pathogen or parasite

1.2074E-12

wound healing

0.0014

response to other organism

2.4524E-12

intracellular signaling cascade

0.0017

response to external stimulus

1.0443E-10

positive regulation of cellular process

0.0017

response to stimulus

8.1038E-10

endocytosis

0.0019

response to wounding

1.3630E-09

I-kappaB kinase/NF-kappaB cascade

0.0025

response to stress

2.1560E-08

lymphocyte activation

0.0031

inflammatory response

3.0602E-08

blood coagulation

0.0034

cell communication

5.0323E-07

taxis

0.0035

signal transduction

7.7480E-07

chemotaxis

0.0035

organismal physiological process

8.0044E-07

innate immune response

0.0037

response to pathogen

3.1842E-06

coagulation

0.0038

humoral immune response

3.4723E-05

locomotory behavior

0.0044

detection of biotic stimulus

4.6946E-05

hemostasis

0.0045

response to bacteria

6.7200E-05

carbohydrate metabolism

0.0048

response to pathogenic bacteria

9.7266E-05

cell surface receptor linked signal transduction

0.0059

immune cell activation

1.0815E-04

positive regulation of biological process

0.0064

cell activation

1.2116E-04

macrophage activation

0.0093

humoral defense mechanism (sensu Vertebrata)

1.4837E-04

regulation of body fluids

0.0097

antimicrobial humoral response (sensu Vertebrata)

2.8361E-04

  

Genes up-regulated in myeloblasts

carboxylic acid metabolism

2.2728E-05

defense response

0.0018

organic acid metabolism

2.3815E-05

response to biotic stimulus

0.0025

cellular biosynthesis

7.1605E-04

immune response

0.0048

biosynthesis

0.0016

positive regulation of cell proliferation

0.0069

  1. Gene expression data for each precursor cell type (erythroblasts, megakaryoblasts, monoblasts and myeloblasts) were compared with CD34+ cells gene expression data using SAM analysis to identify differentially expressed genes. Significantly over represented (p-value < 0.01) Gene Ontology Biological Process terms are reported for each of the examined lists of up-regulated genes.