Protein Family Models

Elongation factor Tu consists of three structural domains, this is the second domain. This domain adopts a beta barrel structure. This the second domain is involved in binding to charged tRNA [1]. This domain is also found in other proteins such as elongation factor G and translation initiation factor IF-2. This domain is structurally related to Pfam:PF03143, and in fact has weak sequence matches to this domain. [1]. 7491491. Crystal structure of the ternary complex of Phe-tRNAPhe, EF-Tu,. and a GTP analog.. Nissen P, Kjeldgaard M, Thirup S, Polekhina G, Reshetnikova L,. Clark BF, Nyborg J;. Science 1995;270:1464-1472. (from Pfam)

Date:

2024-08-14

Elongation factor Tu consists of three structural domains, this is the third domain. This domain adopts a beta barrel structure. This the third domain is involved in binding to both charged tRNA [1] and binding to EF-Ts Pfam:PF00889 [2]. [1]. 7491491. Crystal structure of the ternary complex of Phe-tRNAPhe, EF-Tu,. and a GTP analog.. Nissen P, Kjeldgaard M, Thirup S, Polekhina G, Reshetnikova L,. Clark BF, Nyborg J;. Science 1995;270:1464-1472.. [2]. 9253415. Crystal structure of the EF-Tu.EF-Ts complex from Thermus. thermophilus.. Wang Y, Jiang Y, Meyering-Voss M, Sprinzl M, Sigler PB;. Nat Struct Biol 1997;4:650-656. (from Pfam)

Date:

2024-08-14

This domain contains a P-loop motif, also found in several other families such as Pfam:PF00071, Pfam:PF00025 and Pfam:PF00063. Elongation factor Tu consists of three structural domains, this plus two C-terminal beta barrel domains. Cryoelectron microscopy structure.. [1]. 9311785. Visualization of elongation factor Tu on the Escherichia coli. ribosome.. Stark H, Rodnina MV, Rinke-Appel J, Brimacombe R, Wintermeyer W,. van Heel M;. Nature 1997;389:403-406. (from Pfam)

Date:

2024-08-14

EF-Tu; promotes GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis; when the tRNA anticodon matches the mRNA codon, GTP hydrolysis results; the inactive EF-Tu-GDP leaves the ribosome and release of GDP is promoted by elongation factor Ts

Date:

2020-10-26

EF-Tu; promotes GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis; when the tRNA anticodon matches the mRNA codon, GTP hydrolysis results; the inactive EF-Tu-GDP leaves the ribosome and release of GDP is promoted by elongation factor Ts

Date:

2022-01-26

This HMM models orthologs of translation elongation factor EF-Tu in bacteria, mitochondria, and chloroplasts, one of several GTP-binding translation factors found by the more general pfam HMM GTP_EFTU. The eukaryotic conterpart, eukaryotic translation elongation factor 1 (eEF-1 alpha), is excluded from this model. EF-Tu is one of the most abundant proteins in bacteria, as well as one of the most highly conserved, and in a number of species the gene is duplicated with identical function. When bound to GTP, EF-Tu can form a complex with any (correctly) aminoacylated tRNA except those for initiation and for selenocysteine, in which case EF-Tu is replaced by other factors. Transfer RNA is carried to the ribosome in these complexes for protein translation.

Gene:

tuf

Date:

2024-05-30

Proteins with a small GTP-binding domain recognized by this model include Ras, RhoA, Rab11, translation elongation factor G, translation initiation factor IF-2, tetratcycline resistance protein TetM, CDC42, Era, ADP-ribosylation factors, tdhF, and many others. In some proteins the domain occurs more than once. This model recognizes a large number of small GTP-binding proteins and related domains in larger proteins. Note that the alpha chains of heterotrimeric G proteins are larger proteins in which the NKXD motif is separated from the GxxxxGK[ST] motif (P-loop) by a long insert and are not easily detected by this model.

Date:

2022-03-28

EF-Tu; promotes GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis; when the tRNA anticodon matches the mRNA codon, GTP hydrolysis results; the inactive EF-Tu-GDP leaves the ribosome and release of GDP is promoted by elongation factor Ts

Date:

2020-10-26