ID SDC2_HUMAN Reviewed; 201 AA. AC P34741; B3KQA3; Q6PIS6; Q9H6V1; DT 01-FEB-1994, integrated into UniProtKB/Swiss-Prot. DT 21-AUG-2007, sequence version 2. DT 24-JAN-2024, entry version 205. DE RecName: Full=Syndecan-2; DE Short=SYND2; DE AltName: Full=Fibroglycan; DE AltName: Full=Heparan sulfate proteoglycan core protein; DE Short=HSPG; DE AltName: CD_antigen=CD362; DE Flags: Precursor; GN Name=SDC2; Synonyms=HSPG1; OS Homo sapiens (Human). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; OC Homo. OX NCBI_TaxID=9606; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA], AND VARIANT THR-71. RC TISSUE=Lung fibroblast; RX PubMed=2523388; DOI=10.1016/s0021-9258(18)83534-7; RA Marynen P., Zhang J., Cassiman J.-J., den Berghe H., David G.; RT "Partial primary structure of the 48- and 90-kilodalton core proteins of RT cell surface-associated heparan sulfate proteoglycans of lung fibroblasts. RT Prediction of an integral membrane domain and evidence for multiple RT distinct core proteins at the cell surface of human lung fibroblasts."; RL J. Biol. Chem. 264:7017-7024(1989). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. RC TISSUE=Testis; RX PubMed=14702039; DOI=10.1038/ng1285; RA Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., RA Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., RA Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S., RA Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., RA Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., RA Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., RA Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., RA Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., RA Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., RA Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., RA Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., RA Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., RA Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., RA Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., RA Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., RA Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., RA Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., RA Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., RA Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., RA Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., RA Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., RA Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., RA Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., RA Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., RA Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., RA Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., RA Isogai T., Sugano S.; RT "Complete sequencing and characterization of 21,243 full-length human RT cDNAs."; RL Nat. Genet. 36:40-45(2004). RN [3] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], AND VARIANT THR-59. RC TISSUE=Embryo; RX PubMed=16303743; DOI=10.1093/dnares/12.2.117; RA Otsuki T., Ota T., Nishikawa T., Hayashi K., Suzuki Y., Yamamoto J., RA Wakamatsu A., Kimura K., Sakamoto K., Hatano N., Kawai Y., Ishii S., RA Saito K., Kojima S., Sugiyama T., Ono T., Okano K., Yoshikawa Y., RA Aotsuka S., Sasaki N., Hattori A., Okumura K., Nagai K., Sugano S., RA Isogai T.; RT "Signal sequence and keyword trap in silico for selection of full-length RT human cDNAs encoding secretion or membrane proteins from oligo-capped cDNA RT libraries."; RL DNA Res. 12:117-126(2005). RN [4] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RA Mural R.J., Istrail S., Sutton G., Florea L., Halpern A.L., Mobarry C.M., RA Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., RA Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., RA Turner R., Yooseph S., Lu F., Nusskern D.R., Shue B.C., Zheng X.H., RA Zhong F., Delcher A.L., Huson D.H., Kravitz S.A., Mouchard L., Reinert K., RA Remington K.A., Clark A.G., Waterman M.S., Eichler E.E., Adams M.D., RA Hunkapiller M.W., Myers E.W., Venter J.C.; RL Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases. RN [5] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], AND VARIANT THR-71. RC TISSUE=Brain, and Muscle; RX PubMed=15489334; DOI=10.1101/gr.2596504; RG The MGC Project Team; RT "The status, quality, and expansion of the NIH full-length cDNA project: RT the Mammalian Gene Collection (MGC)."; RL Genome Res. 14:2121-2127(2004). RN [6] RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RX PubMed=21269460; DOI=10.1186/1752-0509-5-17; RA Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., RA Bennett K.L., Superti-Furga G., Colinge J.; RT "Initial characterization of the human central proteome."; RL BMC Syst. Biol. 5:17-17(2011). RN [7] RP PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-187, AND IDENTIFICATION BY RP MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RX PubMed=21406692; DOI=10.1126/scisignal.2001570; RA Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., RA Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B.; RT "System-wide temporal characterization of the proteome and phosphoproteome RT of human embryonic stem cell differentiation."; RL Sci. Signal. 4:RS3-RS3(2011). RN [8] RP GLYCOSYLATION AT THR-101, STRUCTURE OF CARBOHYDRATES, AND IDENTIFICATION BY RP MASS SPECTROMETRY. RX PubMed=22171320; DOI=10.1074/mcp.m111.013649; RA Halim A., Nilsson J., Ruetschi U., Hesse C., Larson G.; RT "Human urinary glycoproteomics; attachment site specific analysis of N- and RT O-linked glycosylations by CID and ECD."; RL Mol. Cell. Proteomics 11:1-17(2012). RN [9] RP IDENTIFICATION IN A COMPLEX WITH SDCBP AND PDCD6IP. RX PubMed=22660413; DOI=10.1038/ncb2502; RA Baietti M.F., Zhang Z., Mortier E., Melchior A., Degeest G., Geeraerts A., RA Ivarsson Y., Depoortere F., Coomans C., Vermeiren E., Zimmermann P., RA David G.; RT "Syndecan-syntenin-ALIX regulates the biogenesis of exosomes."; RL Nat. Cell Biol. 14:677-685(2012). RN [10] RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RC TISSUE=Liver; RX PubMed=24275569; DOI=10.1016/j.jprot.2013.11.014; RA Bian Y., Song C., Cheng K., Dong M., Wang F., Huang J., Sun D., Wang L., RA Ye M., Zou H.; RT "An enzyme assisted RP-RPLC approach for in-depth analysis of human liver RT phosphoproteome."; RL J. Proteomics 96:253-262(2014). RN [11] RP PHOSPHORYLATION AT SER-115. RX PubMed=26091039; DOI=10.1016/j.cell.2015.05.028; RA Tagliabracci V.S., Wiley S.E., Guo X., Kinch L.N., Durrant E., Wen J., RA Xiao J., Cui J., Nguyen K.B., Engel J.L., Coon J.J., Grishin N., RA Pinna L.A., Pagliarini D.J., Dixon J.E.; RT "A single kinase generates the majority of the secreted phosphoproteome."; RL Cell 161:1619-1632(2015). CC -!- FUNCTION: Cell surface proteoglycan which regulates dendritic arbor CC morphogenesis. {ECO:0000250|UniProtKB:P43407}. CC -!- SUBUNIT: Interacts (via cytoplasmic domain) with SARM1 (By similarity). CC Forms a complex with SDCBP and PDCD6IP (PubMed:22660413). CC {ECO:0000250|UniProtKB:P43407, ECO:0000269|PubMed:22660413}. CC -!- INTERACTION: CC P34741; Q12797-6: ASPH; NbExp=5; IntAct=EBI-1172957, EBI-12092171; CC P34741; O14936: CASK; NbExp=2; IntAct=EBI-1172957, EBI-1215506; CC P34741; G5E9A7: DMWD; NbExp=3; IntAct=EBI-1172957, EBI-10976677; CC P34741; Q6NXG1: ESRP1; NbExp=3; IntAct=EBI-1172957, EBI-10213520; CC P34741; O15354: GPR37; NbExp=3; IntAct=EBI-1172957, EBI-15639515; CC P34741; P28799: GRN; NbExp=3; IntAct=EBI-1172957, EBI-747754; CC P34741; P28799-2: GRN; NbExp=3; IntAct=EBI-1172957, EBI-25860013; CC P34741; O60333-2: KIF1B; NbExp=3; IntAct=EBI-1172957, EBI-10975473; CC P34741; Q13387-4: MAPK8IP2; NbExp=3; IntAct=EBI-1172957, EBI-12345753; CC P34741; P41271-2: NBL1; NbExp=3; IntAct=EBI-1172957, EBI-12135485; CC P34741; P21359: NF1; NbExp=4; IntAct=EBI-1172957, EBI-1172917; CC P34741; P27986-2: PIK3R1; NbExp=3; IntAct=EBI-1172957, EBI-9090282; CC P34741; Q9Y3C5: RNF11; NbExp=3; IntAct=EBI-1172957, EBI-396669; CC P34741; P18827: SDC1; NbExp=2; IntAct=EBI-1172957, EBI-2855248; CC P34741; P34741: SDC2; NbExp=4; IntAct=EBI-1172957, EBI-1172957; CC P34741; O75056: SDC3; NbExp=2; IntAct=EBI-1172957, EBI-1642090; CC P34741; P31431: SDC4; NbExp=2; IntAct=EBI-1172957, EBI-3913237; CC P34741; Q7Z699: SPRED1; NbExp=3; IntAct=EBI-1172957, EBI-5235340; CC P34741; O60506-4: SYNCRIP; NbExp=3; IntAct=EBI-1172957, EBI-11123832; CC P34741; O60784-2: TOM1; NbExp=3; IntAct=EBI-1172957, EBI-12117154; CC P34741; O76024: WFS1; NbExp=3; IntAct=EBI-1172957, EBI-720609; CC -!- SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein. CC -!- PTM: O-glycosylated with core 1 or possibly core 8 glycans. Contains CC heparan sulfate (PubMed:22171320). Also contains chondroitin sulfate CC (By similarity). {ECO:0000250|UniProtKB:P43407, CC ECO:0000269|PubMed:22171320}. CC -!- SIMILARITY: Belongs to the syndecan proteoglycan family. {ECO:0000305}. CC -!- SEQUENCE CAUTION: CC Sequence=AAA52701.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305}; CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; J04621; AAA52701.1; ALT_INIT; mRNA. DR EMBL; AK025488; BAB15150.1; -; mRNA. DR EMBL; AK074530; BAG51965.1; -; mRNA. DR EMBL; AK097839; BAG53540.1; -; mRNA. DR EMBL; CH471060; EAW91755.1; -; Genomic_DNA. DR EMBL; BC030133; AAH30133.1; -; mRNA. DR EMBL; BC049836; AAH49836.1; -; mRNA. DR CCDS; CCDS6272.1; -. DR PIR; A33880; A33880. DR RefSeq; NP_002989.2; NM_002998.3. DR PDB; 6ITH; NMR; -; A=143-173. DR PDBsum; 6ITH; -. DR AlphaFoldDB; P34741; -. DR SASBDB; P34741; -. DR SMR; P34741; -. DR BioGRID; 112285; 141. DR CORUM; P34741; -. DR DIP; DIP-29943N; -. DR IntAct; P34741; 89. DR MINT; P34741; -. DR STRING; 9606.ENSP00000307046; -. DR BindingDB; P34741; -. DR ChEMBL; CHEMBL4888448; -. DR DrugBank; DB00020; Sargramostim. DR GlyConnect; 707; 1 O-Linked glycan (1 site). DR GlyCosmos; P34741; 5 sites, 4 glycans. DR GlyGen; P34741; 11 sites, 5 O-linked glycans (8 sites). DR iPTMnet; P34741; -. DR PhosphoSitePlus; P34741; -. DR BioMuta; SDC2; -. DR DMDM; 158962336; -. DR EPD; P34741; -. DR jPOST; P34741; -. DR MassIVE; P34741; -. DR PaxDb; 9606-ENSP00000307046; -. DR PeptideAtlas; P34741; -. DR ProteomicsDB; 54941; -. DR Pumba; P34741; -. DR Antibodypedia; 25987; 311 antibodies from 31 providers. DR DNASU; 6383; -. DR Ensembl; ENST00000302190.9; ENSP00000307046.4; ENSG00000169439.12. DR GeneID; 6383; -. DR KEGG; hsa:6383; -. DR MANE-Select; ENST00000302190.9; ENSP00000307046.4; NM_002998.4; NP_002989.2. DR UCSC; uc003yhv.2; human. DR AGR; HGNC:10659; -. DR CTD; 6383; -. DR DisGeNET; 6383; -. DR GeneCards; SDC2; -. DR HGNC; HGNC:10659; SDC2. DR HPA; ENSG00000169439; Tissue enhanced (liver, thyroid gland). DR MIM; 142460; gene. DR neXtProt; NX_P34741; -. DR OpenTargets; ENSG00000169439; -. DR PharmGKB; PA35589; -. DR VEuPathDB; HostDB:ENSG00000169439; -. DR eggNOG; ENOG502RZ6V; Eukaryota. DR GeneTree; ENSGT00940000157222; -. DR HOGENOM; CLU_046599_2_1_1; -. DR InParanoid; P34741; -. DR OMA; ASASGSX; -. DR OrthoDB; 4258425at2759; -. DR PhylomeDB; P34741; -. DR TreeFam; TF320463; -. DR PathwayCommons; P34741; -. DR Reactome; R-HSA-1971475; A tetrasaccharide linker sequence is required for GAG synthesis. DR Reactome; R-HSA-2022928; HS-GAG biosynthesis. DR Reactome; R-HSA-2024096; HS-GAG degradation. DR Reactome; R-HSA-202733; Cell surface interactions at the vascular wall. DR Reactome; R-HSA-3000170; Syndecan interactions. DR Reactome; R-HSA-3560783; Defective B4GALT7 causes EDS, progeroid type. DR Reactome; R-HSA-3560801; Defective B3GAT3 causes JDSSDHD. DR Reactome; R-HSA-3656237; Defective EXT2 causes exostoses 2. DR Reactome; R-HSA-3656253; Defective EXT1 causes exostoses 1, TRPS2 and CHDS. DR Reactome; R-HSA-381426; Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs). DR Reactome; R-HSA-3928662; EPHB-mediated forward signaling. DR Reactome; R-HSA-4420332; Defective B3GALT6 causes EDSP2 and SEMDJL1. DR Reactome; R-HSA-8957275; Post-translational protein phosphorylation. DR Reactome; R-HSA-9694614; Attachment and Entry. DR Reactome; R-HSA-975634; Retinoid metabolism and transport. DR SignaLink; P34741; -. DR SIGNOR; P34741; -. DR BioGRID-ORCS; 6383; 8 hits in 1151 CRISPR screens. DR ChiTaRS; SDC2; human. DR GeneWiki; SDC2; -. DR GenomeRNAi; 6383; -. DR Pharos; P34741; Tbio. DR PRO; PR:P34741; -. DR Proteomes; UP000005640; Chromosome 8. DR RNAct; P34741; Protein. DR Bgee; ENSG00000169439; Expressed in tibia and 207 other cell types or tissues. DR ExpressionAtlas; P34741; baseline and differential. DR GO; GO:0009986; C:cell surface; IBA:GO_Central. DR GO; GO:0062023; C:collagen-containing extracellular matrix; HDA:BHF-UCL. DR GO; GO:0005788; C:endoplasmic reticulum lumen; TAS:Reactome. DR GO; GO:0005796; C:Golgi lumen; TAS:Reactome. DR GO; GO:0043202; C:lysosomal lumen; TAS:Reactome. DR GO; GO:0005886; C:plasma membrane; IDA:HPA. DR GO; GO:0042802; F:identical protein binding; IPI:IntAct. DR GO; GO:0030165; F:PDZ domain binding; IPI:BHF-UCL. DR GO; GO:0016477; P:cell migration; IBA:GO_Central. DR GO; GO:0048813; P:dendrite morphogenesis; IBA:GO_Central. DR GO; GO:0048814; P:regulation of dendrite morphogenesis; ISS:UniProtKB. DR InterPro; IPR003585; Neurexin-like. DR InterPro; IPR001050; Syndecan. DR InterPro; IPR027789; Syndecan/Neurexin_dom. DR InterPro; IPR030479; Syndecan_CS. DR PANTHER; PTHR10915; SYNDECAN; 1. DR PANTHER; PTHR10915:SF6; SYNDECAN-2; 1. DR Pfam; PF01034; Syndecan; 1. DR SMART; SM00294; 4.1m; 1. DR PROSITE; PS00964; SYNDECAN; 1. DR Genevisible; P34741; HS. PE 1: Evidence at protein level; KW 3D-structure; Differentiation; Glycoprotein; Heparan sulfate; Membrane; KW Neurogenesis; Phosphoprotein; Proteoglycan; Reference proteome; Signal; KW Transmembrane; Transmembrane helix. FT SIGNAL 1..18 FT /evidence="ECO:0000255" FT CHAIN 19..201 FT /note="Syndecan-2" FT /id="PRO_0000033503" FT TOPO_DOM 19..144 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 145..169 FT /note="Helical" FT /evidence="ECO:0000255" FT TOPO_DOM 170..201 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT REGION 42..70 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 90..130 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 178..201 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT COMPBIAS 102..130 FT /note="Basic and acidic residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT SITE 142..143 FT /note="Cleavage of ectodomain" FT /evidence="ECO:0000255" FT MOD_RES 115 FT /note="Phosphoserine; by FAM20C" FT /evidence="ECO:0000269|PubMed:26091039" FT MOD_RES 187 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21406692" FT CARBOHYD 41 FT /note="O-linked (Xyl...) (glycosaminoglycan) serine" FT /evidence="ECO:0000255" FT CARBOHYD 55 FT /note="O-linked (Xyl...) (glycosaminoglycan) serine" FT /evidence="ECO:0000255" FT CARBOHYD 57 FT /note="O-linked (Xyl...) (glycosaminoglycan) serine" FT /evidence="ECO:0000255" FT CARBOHYD 101 FT /note="O-linked (GalNAc...) threonine" FT /evidence="ECO:0000269|PubMed:22171320" FT VARIANT 59 FT /note="A -> T (in dbSNP:rs3816208)" FT /evidence="ECO:0000269|PubMed:16303743" FT /id="VAR_034675" FT VARIANT 71 FT /note="S -> T (in dbSNP:rs1042381)" FT /evidence="ECO:0000269|PubMed:15489334, FT ECO:0000269|PubMed:2523388" FT /id="VAR_034676" FT CONFLICT 150 FT /note="I -> T (in Ref. 2; BAB15150)" FT /evidence="ECO:0000305" FT HELIX 143..171 FT /evidence="ECO:0007829|PDB:6ITH" SQ SEQUENCE 201 AA; 22160 MW; 7DA4159D54741054 CRC64; MRRAWILLTL GLVACVSAES RAELTSDKDM YLDNSSIEEA SGVYPIDDDD YASASGSGAD EDVESPELTT SRPLPKILLT SAAPKVETTT LNIQNKIPAQ TKSPEETDKE KVHLSDSERK MDPAEEDTNV YTEKHSDSLF KRTEVLAAVI AGGVIGFLFA IFLILLLVYR MRKKDEGSYD LGERKPSSAA YQKAPTKEFY A //