| ELOA | 
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| Identifiers | 
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| Aliases | ELOA, EloA, SIII, SIII p110, TCEB3A, TCEB3, transcription elongation factor B subunit 3, elongin A | 
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| External IDs | OMIM: 600786; MGI: 1351315; HomoloGene: 37746; GeneCards: ELOA; OMA:ELOA - orthologs | 
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| | Gene location (Mouse) | 
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 |  |  | Chr. | Chromosome 4 (mouse) | 
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 |  |  | Band | 4|4 D3 | Start | 135,730,679 bp | 
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 | End | 135,749,074 bp | 
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| | RNA expression pattern | 
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 | Bgee | | Human | Mouse (ortholog) | 
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 | | Top expressed in |  | buccal mucosa cell
 lower lobe of lung
 cardia
 glutes
 Skeletal muscle tissue of biceps brachii
 myocardium of left ventricle
 skin of arm
 Skeletal muscle tissue of rectus abdominis
 gingival epithelium
 thoracic diaphragm
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 | | Top expressed in |  | molar
 granulocyte
 plantaris muscle
 extensor digitorum longus muscle
 triceps brachii muscle
 ankle
 medial head of gastrocnemius muscle
 temporal muscle
 quadriceps femoris muscle
 muscle of thigh
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 |  | More reference expression data | 
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 | BioGPS |  | 
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| Wikidata | 
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Elongin A is a protein that in humans is encoded by the ELOA gene.
Elongin A is a subunit of the transcription factor B (SIII) complex. The SIII complex is composed of elongins A/A2, B and C. It activates elongation by RNA polymerase II by suppressing transient pausing of the polymerase at many sites within transcription units. Elongin A functions as the transcriptionally active component of the SIII complex, whereas elongins B and C are regulatory subunits. Elongin A2 is specifically expressed in the testis and is capable of forming a stable complex with elongins B and C. The von Hippel–Lindau tumor suppressor protein binds to elongins B and C and thereby inhibits transcription elongation.