>gi|242012491|ref|XP_002426966.1| protein transport protein SEC61 subunit gamma, putative [Pediculus humanus corporis] gi|212511195|gb|EEB14228.1| protein transport protein SEC61 subunit gamma, putative [Pediculus humanus corporis]
>gi|74096057|ref|NP_001027676.1| protein transport protein Sec61 subunit gamma [Ciona intestinalis] gi|198431211|ref|XP_002125574.1| PREDICTED: similar to putative transport protein sec61 gamma subunit [Ciona intestinalis] gi|198434817|ref|XP_002119112.1| PREDICTED: hypothetical protein [Ciona intestinalis] gi|38605331|sp|Q8I7D9.1|SC61G_CIOIN RecName: Full=Protein transport protein Sec61 subunit gamma gi|27525280|emb|CAC82549.1| putative transport protein sec61 gamma subunit [Ciona intestinalis]
>gi|225709456|gb|ACO10574.1| transport protein Sec61 subunit gamma [Caligus rogercresseyi] gi|225709612|gb|ACO10652.1| transport protein Sec61 subunit gamma [Caligus rogercresseyi] gi|225709800|gb|ACO10746.1| transport protein Sec61 subunit gamma [Caligus rogercresseyi] gi|225709878|gb|ACO10785.1| transport protein Sec61 subunit gamma [Caligus rogercresseyi] gi|225710900|gb|ACO11296.1| transport protein Sec61 subunit gamma [Caligus rogercresseyi] gi|290462577|gb|ADD24336.1| Protein transport protein Sec61 subunit gamma [Lepeophtheirus salmonis] gi|290561553|gb|ADD38177.1| Protein transport protein Sec61 subunit gamma [Lepeophtheirus salmonis]
>gi|91081215|ref|XP_975621.1| PREDICTED: similar to Sec61p gamma subunit [Tribolium castaneum] gi|270005258|gb|EFA01706.1| hypothetical protein TcasGA2_TC007282 [Tribolium castaneum]
This model describes archaeal SEC61-like and eukaryotic SEC61 but not bacterial secE proteins, for which a Pfam pfam00584 (SecE) has been created [Protein fate, Protein and peptide secretion and trafficking]. Length = 61
>gnl|CDD|201325 pfam00584, SecE, SecE/Sec61-gamma subunits of protein translocation complex
SecE is part of the SecYEG complex in bacteria which translocates proteins from the cytoplasm. In eukaryotes the complex, made from Sec61-gamma and Sec61-alpha translocates protein from the cytoplasm to the ER. Archaea have a similar complex. Length = 56
>PF00584 SecE: SecE/Sec61-gamma subunits of protein translocation complex; InterPro: IPR001901 Secretion across the inner membrane in some Gram-negative bacteria occurs via the preprotein translocase pathway
Proteins are produced in the cytoplasm as precursors, and require a chaperone subunit to direct them to the translocase component []. From there, the mature proteins are either targeted to the outer membrane, or remain as periplasmic proteins. The translocase protein subunits are encoded on the bacterial chromosome. The translocase itself comprises 7 proteins, including a chaperone protein (SecB), an ATPase (SecA), an integral membrane complex (SecCY, SecE and SecG), and two additional membrane proteins that promote the release of the mature peptide into the periplasm (SecD and SecF) []. The chaperone protein SecB [] is a highly acidic homotetrameric protein that exists as a "dimer of dimers" in the bacterial cytoplasm. SecB maintains preproteins in an unfolded state after translation, and targets these to the peripheral membrane protein ATPase SecA for secretion []. SecE, part of the main SecYEG translocase complex, is ~106 residues in length, and spans the inner membrane of the Gram-negative bacterial envelope. Together with SecY and SecG, SecE forms a multimeric channel through which preproteins are translocated, using both proton motive forces and ATP-driven secretion. The latter is mediated by SecA. In eukaryotes, the evolutionary related protein sec61-gamma plays a role in protein translocation through the endoplasmic reticulum; it is part of a trimeric complex that also consist of sec61-alpha and beta []. Both secE and sec61-gamma are small proteins of about 60 to 90 amino acids that contain a single transmembrane region at their C-terminal extremity (Escherichia coli secE is an exception, in that it possess an extra N-terminal segment of 60 residues that contains two additional transmembrane domains) [].; GO: 0006605 protein targeting, 0006886 intracellular protein transport, 0016020 membrane; PDB: 3J01_B 2WW9_B 2WWA_B 3DL8_C 2WWB_B 3DIN_G 2ZJS_E 2ZQP_E.
This model represents exclusively the bacterial (and some organellar) SecE protein. SecE is part of the core heterotrimer, SecYEG, of the Sec preprotein translocase system. Other components are the ATPase SecA, a cytosolic chaperone SecB, and an accessory complex of SecDF and YajC.
>COG0690 SecE Preprotein translocase subunit SecE [Intracellular trafficking and secretion]
SEC61gamma, protein transport protein SEC61 subuni
3e-27
2ww9_B
80
Protein transport protein SSS1; ribonucleoprotein,
7e-27
1rh5_B
74
Preprotein translocase SECE subunit; protein trans
6e-11
3mp7_B
61
Preprotein translocase subunit SECE; protein trans
1e-04
>2wwb_B SEC61gamma, protein transport protein SEC61 subunit gamma; ribosome, protein EXIT tunnel, cotranslational protein translocation, protein conducting channel; 6.48A {Canis lupus familiaris} Length = 68
Preprotein translocase subunit SECE; protein trans
82.66
>2wwb_B SEC61gamma, protein transport protein SEC61 subunit gamma; ribosome, protein EXIT tunnel, cotranslational protein translocation, protein conducting channel; 6.48A {Canis lupus familiaris}
>2ww9_B Protein transport protein SSS1; ribonucleoprotein, transmembrane, phospho signal sequence, membrane, ribosome, transport; 8.60A {Saccharomyces cerevisiae} PDB: 2wwa_B
