| Abbreviation | Definition |
|---|---|
| ALS | Agglutinin-Like Sequence |
| ALT | Alternative Lengthening of Telomeres |
| AMH | The Atlantic Modal Haplotype |
| AMIA | American Medical Informatics Association |
| AMOG | Adhesion Molecule On Glia |
| AMP | Anti-Microbial Peptide |
| AMPS | Alignment of Multiple Protein Sequences |
| AN | Any Nucleotide |
| AnCF | Aspergillus Nidulans CCAAT binding Factor |
| AnCP | Aspergillus nidulans CCATT-binding Protein |
| ANGI | Anorexia Nervosa Genetic Initiative |
| ANGIS | Australian National Genomic Information Service |
| ANL | Argonne National Laboratory |
| ANTIDNAIGG | Anti-double-stranded DNA |
| AP | Acrosomal Process |
| APC | Anaphase Promotion Complex |
| APOA-1 | Apolipoprotein A-I |
| APOE | ApoliPOprotein E |
| APP | Alzheimer Precursor Protein |
| APP | Amyloid Precurser Protein |