Figure 1. Comparison of the amino acid sequences of PUFA elongases cloning from C. angulata (KY012771) with those from C. nobilis (KF245423), O. vulgaris (AFM93779), Xenopus tropicalis (NP001011248), Siganus canaliculatus (ADE34561), Gallus gallus (NP001184237), and Homo sapiens (NP068586). Identical residues are shaded black and similar residues are gray. The threshold for similarity shading was set at 25%. Indicated is the conserved histidine box motif. Seven (I-VIII) putative membrane-spanning domains (underlined with dashed line) were identified using TMHMM 2.0, five of which (I, II, V, VI, VII) were predicted by Tvrdik et al. (2000)

From

Molecular Cloning and Functional Characterisation of a Polyunsaturated Fatty Acid Elongase in a Marine Bivalve Crassostrea angulata

Hongkuan Zhang, Helu Liu, Dewei Cheng, Hongxing Liu, Huaiping Zheng

Journal of Food and Nutrition Research. 2018, 6(2), 89-95 doi:10.12691/jfnr-6-2-4