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Updated: May 24, 2026

An Integrated Approach for Microprotein Identification and Sequence Analysis
Published on: July 12, 2022
Annotation and analysis of malic enzyme genes encoding for multiple isoforms in the fungus Mucor circinelloides CBS
Wanwipa Vongsangnak1, Yingtong Zhang, Wei Chen
1Center for Systems Biology, Soochow University, Suzhou, 215006, People's Republic of China. wanwipa@suda.edu.cn
Abstract:
Based on the newly-released genomic data of Mucor circinelloides CBS 277.49, we have annotated five genes encoding for malic enzyme: all code for proteins that contain conserved domains/motifs for malic acid binding, NAD(+) binding and NAD(P)(+) binding. Phylogenetic analysis for malic enzyme genes showed that genes ID 78524 and 11639 share ~80% amino acid identity and are grouped in cluster 1; genes ID 182779, 186772 and 116127 share ~66% amino acid identity are grouped in cluster 2. Genes ID 78524, 11639 and 166127 produce proteins that are localized in the mitochondrion, while the products from genes 182779 and 186772 are localized in the cytosol. Based on the comparative analysis published previously by Song et al. (Microbiology 147:1507-1515, 2001), we propose that malic enzyme genes ID 78524, 166127, 182779, 186772, 11639, respectively, represent protein isoforms I, II, III/IV, V, and VI.

