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Table 2 Efficiency of the probe mapping.

From: GATExplorer: Genomic and Transcriptomic Explorer; mapping expression probes to gene loci, transcripts, exons and ncRNAs

Ā 

Transcripts

Gene Loci

TOTAL N of probes mapped

TOTAL N of probes in the microarray

Mapping efficiency

Ā 

1

>1

1

>1

Ā Ā Ā 
Ā 

N probes

%

N probes

%

N probes

%

N probes

%

Ā Ā Ā 

Microarray

Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 

HG U133A

85075

44,60%

105677

55,40%

180188

94,46%

10564

5,54%

190752

241898

78,86%

HG U133 Plus 2.0

150060

47,74%

164260

52,26%

299482

95,28%

14838

4,72%

314320

594532

52,87%

Human Gene 1.0

387229

54,45%

323912

45,55%

658258

92,56%

52883

7,44%

711141

804372

88,41%

Human Exon 1.0

614549

45,75%

728669

54,25%

1263553

94,07%

79665

5,93%

1343218

5270588

25,49%

  1. Efficiency of the probe mapping for four human Affymetrix microarray models: U133A, U133 Plus 2.0, Gene 1.0 and Exon 1.0. Efficiency is defined as the proportion of probes from the total probes of a given microarray that map to Ensembl human genes or transcripts. N corresponds to number of probes.