HSPG2 (англ. Heparan sulfate proteoglycan 2 ) – білок, який кодується однойменним геном, розташованим у людей на короткому плечі 1-ї хромосоми. [ 4] Довжина поліпептидного ланцюга білка становить 4 391 амінокислот , а молекулярна маса — 468 830[ 5] .
Послідовність амінокислот
10 20 30 40 50
MGWRAAGALL LALLLHGRLL AVTHGLRAYD GLSLPEDIET VTASQMRWTH
SYLSDDEDML ADSISGDDLG SGDLGSGDFQ MVYFRALVNF TRSIEYSPQL
EDAGSREFRE VSEAVVDTLE SEYLKIPGDQ VVSVVFIKEL DGWVFVELDV
GSEGNADGAQ IQEMLLRVIS SGSVASYVTS PQGFQFRRLG TVPQFPRACT
EAEFACHSYN ECVALEYRCD RRPDCRDMSD ELNCEEPVLG ISPTFSLLVE
TTSLPPRPET TIMRQPPVTH APQPLLPGSV RPLPCGPQEA ACRNGHCIPR
DYLCDGQEDC EDGSDELDCG PPPPCEPNEF PCGNGHCALK LWRCDGDFDC
EDRTDEANCP TKRPEEVCGP TQFRCVSTNM CIPASFHCDE ESDCPDRSDE
FGCMPPQVVT PPRESIQASR GQTVTFTCVA IGVPTPIINW RLNWGHIPSH
PRVTVTSEGG RGTLIIRDVK ESDQGAYTCE AMNARGMVFG IPDGVLELVP
QRGPCPDGHF YLEHSAACLP CFCFGITSVC QSTRRFRDQI RLRFDQPDDF
KGVNVTMPAQ PGTPPLSSTQ LQIDPSLHEF QLVDLSRRFL VHDSFWALPE
QFLGNKVDSY GGSLRYNVRY ELARGMLEPV QRPDVVLMGA GYRLLSRGHT
PTQPGALNQR QVQFSEEHWV HESGRPVQRA ELLQVLQSLE AVLIQTVYNT
KMASVGLSDI AMDTTVTHAT SHGRAHSVEE CRCPIGYSGL SCESCDAHFT
RVPGGPYLGT CSGCNCNGHA SSCDPVYGHC LNCQHNTEGP QCNKCKAGFF
GDAMKATATS CRPCPCPYID ASRRFSDTCF LDTDGQATCD ACAPGYTGRR
CESCAPGYEG NPIQPGGKCR PVNQEIVRCD ERGSMGTSGE ACRCKNNVVG
RLCNECADGS FHLSTRNPDG CLKCFCMGVS RHCTSSSWSR AQLHGASEEP
GHFSLTNAAS THTTNEGIFS PTPGELGFSS FHRLLSGPYF WSLPSRFLGD
KVTSYGGELR FTVTQRSQPG STPLHGQPLV VLQGNNIILE HHVAQEPSPG
QPSTFIVPFR EQAWQRPDGQ PATREHLLMA LAGIDTLLIR ASYAQQPAES
RVSGISMDVA VPEETGQDPA LEVEQCSCPP GYRGPSCQDC DTGYTRTPSG
LYLGTCERCS CHGHSEACEP ETGACQGCQH HTEGPRCEQC QPGYYGDAQR
GTPQDCQLCP CYGDPAAGQA AHTCFLDTDG HPTCDACSPG HSGRHCERCA
PGYYGNPSQG QPCQRDSQVP GPIGCNCDPQ GSVSSQCDAA GQCQCKAQVE
GLTCSHCRPH HFHLSASNPD GCLPCFCMGI TQQCASSAYT RHLISTHFAP
GDFQGFALVN PQRNSRLTGE FTVEPVPEGA QLSFGNFAQL GHESFYWQLP
ETYQGDKVAA YGGKLRYTLS YTAGPQGSPL SDPDVQITGN NIMLVASQPA
LQGPERRSYE IMFREEFWRR PDGQPATREH LLMALADLDE LLIRATFSSV
PLAASISAVS LEVAQPGPSN RPRALEVEEC RCPPGYIGLS CQDCAPGYTR
TGSGLYLGHC ELCECNGHSD LCHPETGACS QCQHNAAGEF CELCAPGYYG
DATAGTPEDC QPCACPLTNP ENMFSRTCES LGAGGYRCTA CEPGYTGQYC
EQCGPGYVGN PSVQGGQCLP ETNQAPLVVE VHPARSIVPQ GGSHSLRCQV
SGSPPHYFYW SREDGRPVPS GTQQRHQGSE LHFPSVQPSD AGVYICTCRN
LHQSNTSRAE LLVTEAPSKP ITVTVEEQRS QSVRPGADVT FICTAKSKSP
AYTLVWTRLH NGKLPTRAMD FNGILTIRNV QLSDAGTYVC TGSNMFAMDQ
GTATLHVQAS GTLSAPVVSI HPPQLTVQPG QLAEFRCSAT GSPTPTLEWT
GGPGGQLPAK AQIHGGILRL PAVEPTDQAQ YLCRAHSSAG QQVARAVLHV
HGGGGPRVQV SPERTQVHAG RTVRLYCRAA GVPSATITWR KEGGSLPPQA
RSERTDIATL LIPAITTADA GFYLCVATSP AGTAQARIQV VVLSASDASP
PPVKIESSSP SVTEGQTLDL NCVVAGSAHA QVTWYRRGGS LPPHTQVHGS
RLRLPQVSPA DSGEYVCRVE NGSGPKEASI TVSVLHGTHS GPSYTPVPGS
TRPIRIEPSS SHVAEGQTLD LNCVVPGQAH AQVTWHKRGG SLPARHQTHG
SLLRLHQVTP ADSGEYVCHV VGTSGPLEAS VLVTIEASVI PGPIPPVRIE
SSSSTVAEGQ TLDLSCVVAG QAHAQVTWYK RGGSLPARHQ VRGSRLYIFQ
ASPADAGQYV CRASNGMEAS ITVTVTGTQG ANLAYPAGST QPIRIEPSSS
QVAEGQTLDL NCVVPGQSHA QVTWHKRGGS LPVRHQTHGS LLRLYQASPA
DSGEYVCRVL GSSVPLEASV LVTIEPAGSV PALGVTPTVR IESSSSQVAE
GQTLDLNCLV AGQAHAQVTW HKRGGSLPAR HQVHGSRLRL LQVTPADSGE
YVCRVVGSSG TQEASVLVTI QQRLSGSHSQ GVAYPVRIES SSASLANGHT
LDLNCLVASQ APHTITWYKR GGSLPSRHQI VGSRLRIPQV TPADSGEYVC
HVSNGAGSRE TSLIVTIQGS GSSHVPSVSP PIRIESSSPT VVEGQTLDLN
CVVARQPQAI ITWYKRGGSL PSRHQTHGSH LRLHQMSVAD SGEYVCRANN
NIDALEASIV ISVSPSAGSP SAPGSSMPIR IESSSSHVAE GETLDLNCVV
PGQAHAQVTW HKRGGSLPSH HQTRGSRLRL HHVSPADSGE YVCRVMGSSG
PLEASVLVTI EASGSSAVHV PAPGGAPPIR IEPSSSRVAE GQTLDLKCVV
PGQAHAQVTW HKRGGNLPAR HQVHGPLLRL NQVSPADSGE YSCQVTGSSG
TLEASVLVTI EPSSPGPIPA PGLAQPIYIE ASSSHVTEGQ TLDLNCVVPG
QAHAQVTWYK RGGSLPARHQ THGSQLRLHL VSPADSGEYV CRAASGPGPE
QEASFTVTVP PSEGSSYRLR SPVISIDPPS STVQQGQDAS FKCLIHDGAA
PISLEWKTRN QELEDNVHIS PNGSIITIVG TRPSNHGTYR CVASNAYGVA
QSVVNLSVHG PPTVSVLPEG PVWVKVGKAV TLECVSAGEP RSSARWTRIS
STPAKLEQRT YGLMDSHAVL QISSAKPSDA GTYVCLAQNA LGTAQKQVEV
IVDTGAMAPG APQVQAEEAE LTVEAGHTAT LRCSATGSPA PTIHWSKLRS
PLPWQHRLEG DTLIIPRVAQ QDSGQYICNA TSPAGHAEAT IILHVESPPY
ATTVPEHASV QAGETVQLQC LAHGTPPLTF QWSRVGSSLP GRATARNELL
HFERAAPEDS GRYRCRVTNK VGSAEAFAQL LVQGPPGSLP ATSIPAGSTP
TVQVTPQLET KSIGASVEFH CAVPSDRGTQ LRWFKEGGQL PPGHSVQDGV
LRIQNLDQSC QGTYICQAHG PWGKAQASAQ LVIQALPSVL INIRTSVQTV
VVGHAVEFEC LALGDPKPQV TWSKVGGHLR PGIVQSGGVV RIAHVELADA
GQYRCTATNA AGTTQSHVLL LVQALPQISM PQEVRVPAGS AAVFPCIASG
YPTPDISWSK LDGSLPPDSR LENNMLMLPS VRPQDAGTYV CTATNRQGKV
KAFAHLQVPE RVVPYFTQTP YSFLPLPTIK DAYRKFEIKI TFRPDSADGM
LLYNGQKRVP GSPTNLANRQ PDFISFGLVG GRPEFRFDAG SGMATIRHPT
PLALGHFHTV TLLRSLTQGS LIVGDLAPVN GTSQGKFQGL DLNEELYLGG
YPDYGAIPKA GLSSGFIGCV RELRIQGEEI VFHDLNLTAH GISHCPTCRD
RPCQNGGQCH DSESSSYVCV CPAGFTGSRC EHSQALHCHP EACGPDATCV
NRPDGRGYTC RCHLGRSGLR CEEGVTVTTP SLSGAGSYLA LPALTNTHHE
LRLDVEFKPL APDGVLLFSG GKSGPVEDFV SLAMVGGHLE FRYELGSGLA
VLRSAEPLAL GRWHRVSAER LNKDGSLRVN GGRPVLRSSP GKSQGLNLHT
LLYLGGVEPS VPLSPATNMS AHFRGCVGEV SVNGKRLDLT YSFLGSQGIG
QCYDSSPCER QPCQHGATCM PAGEYEFQCL CRDGFKGDLC EHEENPCQLR
EPCLHGGTCQ GTRCLCLPGF SGPRCQQGSG HGIAESDWHL EGSGGNDAPG
QYGAYFHDDG FLAFPGHVFS RSLPEVPETI ELEVRTSTAS GLLLWQGVEV
GEAGQGKDFI SLGLQDGHLV FRYQLGSGEA RLVSEDPIND GEWHRVTALR
EGRRGSIQVD GEELVSGRSP GPNVAVNAKG SVYIGGAPDV ATLTGGRFSS
GITGCVKNLV LHSARPGAPP PQPLDLQHRA QAGANTRPCP S
Задіяний у такому біологічному процесі як ангіогенез .
Білок має сайт для зв'язування з іонами металів, іоном кальцію .
Локалізований у позаклітинному матриксі, базальній мембрані .
Також секретований назовні.
Література
Kallunki P., Tryggvason K. (1992). Human basement membrane heparan sulfate proteoglycan core protein: a 467-kD protein containing multiple domains resembling elements of the low density lipoprotein receptor, laminin, neural cell adhesion molecules, and epidermal growth factor . J. Cell Biol . 116 : 559—571. PMID 1730768 DOI :10.1083/jcb.116.2.559
Cohen I.R., Graessel S., Murdoch A.D., Iozzo R.V. (1993). Structural characterization of the complete human perlecan gene and its promoter. Proc. Natl. Acad. Sci. U.S.A . 90 : 10404—10408. PMID 8234307 DOI :10.1073/pnas.90.21.10404
Mongiat M., Sweeney S.M., San Antonio J.D., Fu J., Iozzo R.V. (2003). Endorepellin, a novel inhibitor of angiogenesis derived from the C terminus of perlecan. J. Biol. Chem . 278 : 4238—4249. PMID 12435733 DOI :10.1074/jbc.M210445200
Zhang H., Li X.-J., Martin D.B., Aebersold R. (2003). Identification and quantification of N-linked glycoproteins using hydrazide chemistry, stable isotope labeling and mass spectrometry . Nat. Biotechnol . 21 : 660—666. PMID 12754519 DOI :10.1038/nbt827
Halim A., Nilsson J., Ruetschi U., Hesse C., Larson G. (2011). Human urinary glycoproteomics; attachment site specific analysis of N-and O-linked glycosylations by CID and ECD. Mol. Cell. Proteomics : —. PMID 22171320 DOI :10.1074/mcp.M111.013649
Murdoch A.D., Dodge G.R., Cohen I., Tuan R.S., Iozzo R.V. (1992). Primary structure of the human heparan sulfate proteoglycan from basement membrane (HSPG2/perlecan). A chimeric molecule with multiple domains homologous to the low density lipoprotein receptor, laminin, neural cell adhesion molecules, and epidermal growth factor. J. Biol. Chem . 267 : 8544—8557. PMID 1569102
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