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MTIF2
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	2CRV
Identifiers
Aliases	MTIF2, mitochondrial translational initiation factor 2
External IDs	OMIM: 603766; MGI: 1924034; HomoloGene: 1840; GeneCards: MTIF2; OMA:MTIF2 - orthologs
Gene location (Human)
Chr.	Chromosome 2 (human)
End	55,269,347 bp
Gene location (Mouse)
Chr.	Chromosome 11 (mouse)
End	29,495,279 bp
RNA expression pattern
	Top expressed in
	biceps brachii; ; parietal pleura; ; visceral pleura; ; germinal epithelium; ; epithelium of colon; ; Skeletal muscle tissue of biceps brachii; ; tibia; ; right ventricle; ; rectum; ; jejunum;
	Top expressed in
	tail of embryo; ; myocardium of ventricle; ; genital tubercle; ; plantaris muscle; ; cardiac muscle tissue of left ventricle; ; brown adipose tissue; ; digastric muscle; ; medial ganglionic eminence; ; soleus muscle; ; right ventricle;
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	nucleotide binding; GTP binding; translation factor activity, RNA binding; translation initiation factor activity; ribosomal small subunit binding; RNA binding; GTPase activity;
Cellular component	intracellular anatomical structure; mitochondrion; nucleoplasm;
Biological process	translational initiation; ribosome disassembly; protein biosynthesis; regulation of translational initiation; mitochondrial translational initiation;
	Sources:Amigo / QuickGO
Orthologs
	4528
	76784
	ENSG00000085760
	ENSMUSG00000020459
	P46199; Q6P1N2
	Q91YJ5
NM_001005369; NM_002453; NM_001321001; NM_001321002; NM_001321003;
	NM_001321004; NM_001321005
	NM_001282118; NM_001282119; NM_001282120; NM_133767
NP_001005369; NP_001307930; NP_001307931; NP_001307932; NP_001307933;
	NP_001307934; NP_002444; NP_001005369.1; NP_002444.2
	NP_001269047; NP_001269048; NP_001269049; NP_598528
	Wikidata
View/Edit Human	View/Edit Mouse

Translation initiation factor IF-2, mitochondrial is a protein that in humans is encoded by the MTIF2 gene.^[5]^[6]^[7]

During the initiation of protein biosynthesis, initiation factor-2 (IF-2) promotes the binding of the initiator tRNA to the small subunit of the ribosome in a GTP-dependent manner. Prokaryotic IF-2 is a single polypeptide, while eukaryotic cytoplasmic IF-2 (eIF-2) is a trimeric protein. Bovine liver mitochondria contain IF-2(mt), an 85-kD monomeric protein that is equivalent to prokaryotic IF-2. The predicted 727-amino acid human protein contains a 29-amino acid presequence. Human IF-2(mt) shares 32 to 38% amino acid sequence identity with yeast IF-2(mt) and several prokaryotic IF-2s, with the greatest degree of conservation in the G domains of the proteins. Two transcript variants encoding the same protein have been found for this gene.^[7]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000085760 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000020459 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Bonner DS, Wiley JE, Farwell MA (Mar 1999). "Assignment1 of the mitochondrial translational initiation factor 2 gene (MTIF2) to human chromosome 2 bands p16→p14 by in situ hybridization and with somatic cell hybrids". Cytogenet Cell Genet. 83 (1–2): 80–1. doi:10.1159/000015133. PMID 9925935. S2CID 23290955.
^ Ma L, Spremulli LL (Feb 1995). "Cloning and sequence analysis of the human mitochondrial translational initiation factor 2 cDNA". J Biol Chem. 270 (4): 1859–65. doi:10.1074/jbc.270.4.1859. PMID 7829522.
^ ^a ^b "Entrez Gene: MTIF2 mitochondrial translational initiation factor 2".

Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID 8889548.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Overman RG, Enderle PJ, Farrow JM, et al. (2003). "The human mitochondrial translation initiation factor 2 gene (MTIF2): transcriptional analysis and identification of a pseudogene". Biochim. Biophys. Acta. 1628 (3): 195–205. doi:10.1016/s0167-4781(03)00144-1. PMID 12932832.
Bouwmeester T, Bauch A, Ruffner H, et al. (2004). "A physical and functional map of the human TNF-alpha/NF-kappa B signal transduction pathway". Nat. Cell Biol. 6 (2): 97–105. doi:10.1038/ncb1086. PMID 14743216. S2CID 11683986.
Miura E, Kato Y, Matsushima R, et al. (2007). "The Balance between Protein Synthesis and Degradation in Chloroplasts Determines Leaf Variegation in Arabidopsis yellow variegated Mutants". Plant Cell. 19 (4): 1313–28. doi:10.1105/tpc.106.049270. PMC 1913758. PMID 17416734.