GSTALPHA is a term commonly used in biochemistry to refer to a protein subunit of a specific enzyme. The spelling of GSTALPHA can be broken down into its phonetic components using the International Phonetic Alphabet (IPA). The IPA transcription of GSTALPHA is /dʒiː ɛs tiː 'ælfə/. This indicates that the first letter "G" is pronounced as "dʒiː", "S" is pronounced as "ɛs", and "T" is pronounced as "tiː". The use of IPA helps individuals accurately pronounce and understand the spelling of scientific terms.