[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-564704-105":53,"doc-detail-564704-en":127},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":120,"head_meta":122,"extra_data":124,"updated_unix":126},105,"en","a-guide-to-the-twenty-common-amino-acids-version-2","A Guide to the Twenty Common Amino Acids - Version 2","","This document provides a comprehensive educational guide to the twenty common amino acids that are encoded by the human genetic code. It classifies these essential building blocks of life into various categories such as aliphatic, aromatic, acidic, basic, hydroxylic, and sulfur-containing. The text details the specific DNA codons, three-letter abbreviations, and single-letter codes for each amino acid. Additionally, it explains the distinction between essential and non-essential amino acids and addresses the specific cases of Selenocysteine, as well as the nomenclature for asparagine/aspartic acid and glutamine/glutamic acid combinations. This reference is designed for biological and chemical clarity, serving as an essential resource for understanding protein synthesis and genetic encoding in living organisms.",{"@graph":63,"@context":119},[64,80,102],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":51,"@type":70,"position":76},"https://docshare.wps.com/template/general/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/a-guide-to-the-twenty-common-amino-acids-version-2/564704/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/a-guide-to-the-twenty-common-amino-acids-version-2/564704.png","ImageObject",442,249,{"name":88,"@type":89},"asba","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-30","2026-10-12",true,{"@type":98,"interactionType":99,"userInteractionCount":101},"InteractionCounter",{"@type":100},"ViewAction",7,{"@type":103,"mainEntity":104},"FAQPage",[105,111,115],{"name":106,"@type":107,"acceptedAnswer":108},"What are the two types of amino acids based on dietary requirements?","Question",{"text":109,"@type":110},"Amino acids are categorized into 'essential' amino acids, which must be obtained through diet, and 'non-essential' amino acids, which the human body can synthesize.","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"How many amino acids does the human genetic code directly encode?",{"text":114,"@type":110},"The human genetic code directly encodes 20 common amino acids, although over 500 different amino acids are found in nature.",{"name":116,"@type":107,"acceptedAnswer":117},"What are the codes used when distinguishing between asparagine/aspartic acid and glutamine/glutamic acid is difficult?",{"text":118,"@type":110},"In such cases, the codes 'asx' (B) and 'glx' (Z) are used to represent these pairs, respectively.","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},564704,1792097041,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":9,"language":136,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":137,"faqs":138,"seo_title":139,"seo_description":61,"update_tm":140,"read_time":4},3985747872567,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","A GUIDE TO THE TWENTY COMMON AMINO ACIDS  \nAMINO ACIDS ARE THE BUILDING BLOCKS OF PROTEINS IN LIVING ORGANISMS. THERE ARE OVER 500 AMINO ACIDS FOUND IN NATURE-HOWEVER, THE HUMAN GENETIC CODE ONLY DIRECTLY ENCODES 20. ‘ESSENTIAL’ AMINO ACIDS MUST BE OBTAINED FROM THE DIET, WHILST NON-ESSENTIAL AMINO ACIDS CAN BE SYNTHESISED IN THE BODY.  \nChart Key:   \nChemical Structure  \nsingle letter code  \nNAME A three letter code  \nDNA codons  \nPHENYLALANINE F  \nPhe TTT, TTC  \nLYSINE K Lys  \nAAA, AAG  \nALIPHATIC  AROMATIC  \nAlanine A  \nAla  \nGCT, GCC, GCA, GCG  \nTRYPTOPHAN WTrp  \nTGG  \nSERINE S  \nSer  \nTCT, TCC, TCA, TCG, AGT, AGC  \nACIDIC  BASIC  HYDROXYLIC   \nGlycine GGly  \nGGT, GGC, GGA, GGG  \nTYROSINE Y Tyr  \nTAT, TAC  \nTHREONINE T  \nThr  \nACT, ACC, ACA, ACG  \nISOLEUCINE IIle  \nATT, ATC, ATA  \nASPARTIC ACID DAsp  \nGAT, GAC  \nCYSTEINE CCys  \nTGT, TGC  \nSULFUR-CONTAINING  \nLEUCINE L  \nLeu  \nCTT, CTC, CTA, CTG, TTA, TTG  \nGLUTAMIC ACID E  \nGlu GAA, GAG  \nMETHIONINE M  \nMet  \nATG  \nAMIDIC  NON-ESSENTIAL  ESSENTIAL  \nCCT, CCC, CCA, CCG GTT, GTC, GTA, GTG  \nARGININE R  \nArg  \nCGT, CGC, CGA, CGG, AGA, AGG  \nASPARAGINE N  \nAsn  \nAAT, AAC  \nHISTIDINE H  \nHis CAT, CAC  \nGLUTAMINE Q  \nGln  \nCAA, CAG  \nNote: This chart only shows those amino acids for which the human genetic code directly codes for. Selenocysteine is often referred to as the 21st amino acid, but is encoded in a special manner.  \nIn some cases, distinguishing between asparagine/aspartic acid and glutamine/glutamic acid is difficult. In these cases, the codes asx (B) and glx (Z) are respectively used.  \n© COMPOUND INTEREST 2014-WWW. COMPOUNDCHEM. COM | Twitter: @compoundchem | Facebook: [www.facebook.com/compoundchem](www.facebook.com/compoundchem)[ ](www.facebook.com/compoundchem)[Shared under a Creative Commons Attribution-NonCommercial-NoDerivatives licence.](Shared under a Creative Commons Attribution-NonCommercial-NoDerivatives licence.)  \nBY NC ND","cbCaiptMr8jB7WP9","https://ap.wps.com/l/cbCaiptMr8jB7WP9","pdf",150561,"English","## Introduction to Amino Acids\n## Amino Acid Classifications\n## DNA Codons and Identification Keys","[{\"question\":\"What are the two types of amino acids based on dietary requirements?\",\"answer\":\"Amino acids are categorized into 'essential' amino acids, which must be obtained through diet, and 'non-essential' amino acids, which the human body can synthesize.\"},{\"question\":\"How many amino acids does the human genetic code directly encode?\",\"answer\":\"The human genetic code directly encodes 20 common amino acids, although over 500 different amino acids are found in nature.\"},{\"question\":\"What are the codes used when distinguishing between asparagine/aspartic acid and glutamine/glutamic acid is difficult?\",\"answer\":\"In such cases, the codes 'asx' (B) and 'glx' (Z) are used to represent these pairs, respectively.\"}]","A Guide to the Twenty Common Amino Acids - Version 2 | PDF",1791843741]