Protein: Thyroglobulin (Tg) (P01267)
Organism: Bos taurus (Bovine)
Function: Acts as a substrate for the production of iodinated thyroid hormones thyroxine (T4) and triiodothyronine (T3) (By similarity). The synthesis of T3 and T4 involves iodination of selected tyrosine residues of TG/thyroglobulin followed by their oxidative coupling (By similarity). Following TG re-internalization and lysosomal-mediated proteolysis, T3 and T4 are released from the polypeptide backbone leading to their secretion into the bloodstream (By similarity). One dimer produces 7 thyroid hormone molecules (By similarity).
Subcellular location: Secreted {ECO:0000250|UniProtKB:O08710}. Note=Secreted into the thyroid follicle lumen. Localizes to colloid globules, a structure formed in the thyroid follicle lumen consisting of cross-linked TG arranged in concentric layers. {ECO:0000250|UniProtKB:O08710}.
Interaction partners:
- Serpin domain-containing protein
- Myoglobin
- Albumin
- Thyroid peroxidase
- Low-density lipoprotein receptor-related protein 2
- Somatotropin
- Asialoglycoprotein receptor 1
- Amelogenin, X isoform
- Thyrotropin receptor
- Asialoglycoprotein receptor 2
Sequence:
MALALWVFGLLDLICLASANIFEYQVDAQPLRPCELQRERAFLKREDYVPQCAEDGSFQTVQCGKDGASCWCVDADGREVPGSRQPGRPAACLSFCQLQKQQILLSSYINSTATSYLPQCQDSGDYSPVQCDLRRRQCWCVDAEGMEVYGTRQQGRPARCPRSCEIRNRRLLHGVGDRSPPQCSPDGAFRPVQCKLVNTTDMMIFDLVHSYSRFPDAFVTFSSFRSRFPEVSGYCYCADSQGRELAETGLELLLDEIYDTIFAGLDLASTFAETTLYRILQRRFLAVQLVISGRFRCPTKCEVERFAATSFRHPYVPSCHPDGEYQAAQCQQGGPCWCVDSRGQEIPGTRQRGEPPSCAEDQSCPSERRRAFSRLRFGPSGYFSRRSLLLAPEEGPVSQRFARFTASCPPSIKELFLDSGIFQPMLQGRDTRFVAPESLKEAIRGLFPSRELARLALQFTTNAKRLQQNLFGGRFLVKVGQFNLSGALGTRGTFNFSHFFQQLGLPGFQDGRALADLAKPLSVGLNSNPASEAPKASKIDVALRKPVVGSFGFEVNLQENQNALQFLSSFLELPEFLLFLQHAISVPEDIARDLGDVMEMVFSSQGCGQAPGSLFVPACTAEGSYEEVQCFAGDCWCVDAQGRELAGSRVRGGRPRCPTECEKQRARMQSLLGSQPAGSSLFVPACTSKGNFLPVQCFNSECYCVDTEGQPIPGTRSALGEPKKCPSPCQLQAERAFLGTVRTLVSNPSTLPALSSIYIPQCSASGQWSPVQCDGPPEQAFEWYERWEAQNSAGQALTPAELLMKIMSYREAASRNFRLFIQNLYEAGQQGIFPGLARYSSFQDVPVSVLEGNQTQPGGNVFLEPYLFWQILNGQLDRYPGPYSDFSAPLAHFDLRSCWCVDEAGQKLEGTRNEPNKVPACPGSCEEVKLRVLQFIREAEEIVTYSNSSRFPLGESFLAAKGIRLTDEELAFPPLSPSRETFLEKFLSGSDYAIRLAAQSTFDFYQRRLVTLAESPRAPSPVWSSAYLPQCDAFGGWEPVQCHAATGHCWCVDGKGEYVPTSLTARSRQIPQCPTSCERLRASGLLSSWKQAGVQAEPSPKDLFIPTCLETGEFARLQASEAGTWCVDPASGEGVPPGTNSSAQCPSLCEVLQSGVPSRRTSPGYSPACRAEDGGFSPVQCDPAQGSCWCVLGSGEEVPGTRVAGSQPACESPQCPLPFSVADVAGGAILCERASGLGAAAGQRCQLRCSQGYRSAFPPEPLLCSVQRRRWESRPPQPRACQRPQFWQTLQTQAQFQLLLPLGKVCSADYSGLLLAFQVFLLDELTARGFCQIQVKTAGTPVSIPVCDDSSVKVECLSRERLGVNITWKLQLVDAPPASLPDLQDVEEALAGKYLAGRFADLIQSGTFQLHLDSKTFSADTSIRFLQGDRFGTSPRTQFGCLEGFGRVVAASDASQDALGCVKCPEGSYFQDEQCIPCPAGFYQEQAGSLACVPCPEGRTTVYAGAFSQTHCVTDCQKNEVGLQCDQDSQYRASQRDRTSGKAFCVDGEGRRLPWTEAEAPLVDAQCLVMRKFEKLPESKVIFSADVAVMVRSEVPGSESSLMQCLADCALDEACGFLTVSTAGSEVSCDFYAWASDSIACTTSGRSEDALGTSQATSFGSLQCQVKVRSREGDPLAVYLKKGQEFTITGQKRFEQTGFQSALSGMYSPVTFSASGASLAEVHLFCLLACDHDSCCDGFILVQVQGGPLLCGLLSSPDVLLCHVRDWRDPAEAQANASCPGVTYDQDSRQVTLRLGGQEIRGLTPLEGTQDTLTSFQQVYLWKDSDMGSRSESMGCRRDTEPRPASPSETDLTTGLFSPVDLIQVIVDGNVSLPSQQHWLFKHLFSLQQANLWCLSRCAGEPSFCQLAEVTDSEPLYFTCTLYPEAQVCDDILESSPKGCRLILPRRPSALYRKKVVLQDRVKNFYNRLPFQKLTGISIRNKVPMSDKSISSGFFECERLCDMDPCCTGFGFLNVSQLKGGEVTCLTLNSLGLQTCSEEYGGVWRILDCGSPDTEVRTYPFGWYQKPVSPSDAPSFCPSVALPALTENVALDSWQSLALSSVIVDPSIRNFDVAHISTAAVGNFSAARDRCLWECSRHQDCLVTTLQTQPGAVRCMFYADTQSCTHSLQAQNCRLLLHEEATYIYRKPNIPLPGFGTSSPSVPIATHGQLLGRSQAIQVGTSWKPVDQFLGVPYAAPPLGEKRFRAPEHLNWTGSWEATKPRARCWQPGIRTPTPPGVSEDCLYLNVFVPQNMAPNASVLVFFHNAAEGKGSGDRPAVDGSFLAAVGNLIVVTASYRTGIFGFLSSGSSELSGNWGLLDQVVALTWVQTHIQAFGGDPRRVTLAADRGGADIASIHLVTTRAANSRLFRRAVLMGGSALSPAAVIRPERARQQAAALAKEVGCPSSSVQEMVSCLRQEPARILNDAQTKLLAVSGPFHYWGPVVDGQYLRETPARVLQRAPRVKVDLLIGSSQDDGLINRAKAVKQFEESQGRTSSKTAFYQALQNSLGGEAADAGVQAAATWYYSLEHDSDDYASFSRALEQATRDYFIICPVIDMASHWARTVRGNVFMYHAPESYSHSSLELLTDVLYAFGLPFYPAYEGQFTLEEKSLSLKIMQYFSNFIRSGNPNYPHEFSRRAPEFAAPWPDFVPRDGAESYKELSVLLPNRQGLKKADCSFWSKYIQSLKASADETKDGPSADSEEEDQPAGSGLTEDLLGLPELASKTYSK