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- Table of Contents
Facts about Probable tRNA(His) guanylyltransferase.
Adds a GMP to the 5'-end of tRNA(His) after transcription and RNase P cleavage.
This step is essential for appropriate recognition of the tRNA and for the fidelity of protein synthesis..
| Human | |
|---|---|
| Gene Name: | THG1L |
| Uniprot: | Q9NWX6 |
| Entrez: | 54974 |

| Belongs to: |
|---|
| tRNA(His) guanylyltransferase family |

EC 2.7.7; EC 2.7.7.6; FLJ11601; FLJ20546; ICF45EC 2.7.7.-; Interphase cytoplasmic foci protein 45; probable tRNA(His) guanylyltransferase; tRNA-histidine guanylyltransferase 1-like (S. cerevisiae); tRNA-histidine guanylyltransferase
Mass (kDA):
34.831 kDA

| Human | |
|---|---|
| Location: | 5q33.3 |
| Sequence: | 5; NC_000005.10 (157731420..157741449) |
Expressed in many tissues.
Cytoplasm. Found near the nuclear membrane.



PMID: 15459185 by Guo D., et al. Identification and characterization of a novel cytoplasm protein ICF45 that is involved in cell cycle regulation.
PMID: 21059936 by Hyde S.J., et al. tRNA(His) guanylyltransferase (THG1), a unique 3'-5' nucleotidyl transferase, shares unexpected structural homology with canonical 5'- 3' DNA polymerases.