Blast Analysis : gnl|CDD|58172

Analysis  rpsblast_cdd Start  162
End  405 Strand  +
Length  244 Note  Gaps:50
Hit Coverage  96.08 Hit Length  204
Hit Pident  21.94 E Val  5e-09
Hit Description  cd03506 Delta6-FADS-like The Delta6 Fatty Acid Desaturase (Delta6-FADS)-like CD includes the integral-membrane enzymes: delta-4 delta-5 delta-6 delta-8 delta-8-sphingolipid and delta-11 desaturases found in vertebrates higher plants fungi and bacteria. These desaturases are required for the synthesis of highly unsaturated fatty acids (HUFAs) which are mainly esterified into phospholipids and contribute to maintaining membrane fluidity. While HUFAs may be required for cold tolerance in bacteria plants and fish the primary role of HUFAs in mammals is cell signaling. These enzymes are described as front-end desaturases because they introduce a double bond between the pre-exiting double bond and the carboxyl (front) end of the fatty acid. Various substrates are involved with both acyl-coenzyme A (CoA) and acyl-lipid desaturases present in this CD. Acyl-lipid desaturases are localized in the membranes of cyanobacterial thylakoid plant endoplasmic reticulum (ER) and plastid and acyl-CoA desaturases are present in ER membrane. ER-bound plant acyl-lipid desaturases and acyl-CoA desaturases require cytochrome b5 as an electron donor. Most of the eukaryotic desaturase domains have an adjacent N-terminal cytochrome b5-like domain. This domain family has extensive hydrophobic regions that would be capable of spanning the membrane bilayer at least twice. Comparison of sequences also reveals the existence of three regions of conserved histidine cluster motifs that contain the residues: HXXXH HXX(X)HH and Q/HXXHH. These histidine residues are reported to be catalytically essential and proposed to be the ligands for the iron atoms contained within the homolog stearoyl CoA desaturase.. Hit Pcons  15.82
Name  Qrob_P0520310.2

1 Protein

Protein Identifier
Organism . Name
Score Score Type Protein Description Alias (in v1) Code Enzyme Gene Prediction Quality
Qrob_P0520310.2 Quercus robur 100.0 egn (M=1) 1.14.99.33 - Delta(12)-fatty acid dehydrogenase.   EC:1.14.99.33 validated