Protein Family Models

Members of this family contain a four-stranded beta sheet and three alpha helices flanked by an additional beta strand. They are predominantly found in the bacterial GTP-binding protein Obg, and are still functionally uncharacterised [1]. [1]. 15019792. Crystal structure of the GTP-binding protein Obg from Thermus thermophilus HB8. Kukimoto-Niino M, Murayama K, Inoue M, Terada T, Tame JR, Kuramitsu S, Shirouzu M, Yokoyama S;. J Mol Biol. 2004;337:761-770. (from Pfam)

Date:

2024-10-16

Escherichia coli has an iron(II) transport system (feo) which may make an important contribution to the iron supply of the cell under anaerobic conditions [1]. FeoB has been identified as part of this transport system. FeoB is a large 700-800 amino acid integral membrane protein. The N terminus contains a P-loop motif suggesting that iron transport may be ATP dependent [1]. [1]. 8407793. Characterization of the ferrous iron uptake system of Escherichia coli. Kammler M, Schon C, Hantke K;. J Bacteriol 1993;175:6212-6219. (from Pfam)

Date:

2024-10-16

This HMM identifies the P-loop-containing domain of large numbers of GTPases with ribosome-associated functions, including many involved in ribosome maturation (Der, Era, etc), ribosome rescue (HflX), and protein translation (InfB, Tuf, PrfC).

Date:

2024-10-16

The N-terminal domain of Swiss:P20964 has the OBG fold, which is formed by three glycine-rich regions inserted into a small 8-stranded beta-sandwich these regions form six left-handed collagen-like helices packed and H-bonded together. (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:

2024-10-16

Essential GTPase; exhibits high exchange rate for GTP/GDP; associates with 50S ribosomal subunit; involved in regulation of chromosomal replication

Gene:

obgE

Date:

2024-03-13

Essential GTPase; exhibits high exchange rate for GTP/GDP; associates with 50S ribosomal subunit; involved in regulation of chromosomal replication

Gene:

obgE

Date:

2024-03-13

Essential GTPase; exhibits high exchange rate for GTP/GDP; associates with 50S ribosomal subunit; involved in regulation of chromosomal replication

Gene:

obgE

Date:

2021-08-02

CgtA (see model TIGR02729) is a broadly conserved member of the obg family of GTPases associated with ribosome maturation. This model represents a unique C-terminal domain found in some but not all sequences of CgtA. This region is preceded, and may be followed, by a region of low-complexity sequence.

Gene:

cgtA

Date:

2024-05-30