ID SPB5_HUMAN Reviewed; 375 AA. AC P36952; B2R6Y4; Q6N0B4; Q8WW89; DT 01-JUN-1994, integrated into UniProtKB/Swiss-Prot. DT 05-MAY-2009, sequence version 2. DT 24-JAN-2024, entry version 200. DE RecName: Full=Serpin B5; DE AltName: Full=Maspin; DE AltName: Full=Peptidase inhibitor 5; DE Short=PI-5; GN Name=SERPINB5; Synonyms=PI5; 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] (ISOFORM 1), AND VARIANTS PRO-176 AND LEU-187. RC TISSUE=Mammary gland; RX PubMed=8290962; DOI=10.1126/science.8290962; RA Zou Z., Anisowicz A., Hendrix M.J.C., Thor A., Neveu M., Sheng S., RA Rafidi K., Seftor E., Sager R.; RT "Maspin, a serpin with tumor-suppressing activity in human mammary RT epithelial cells."; RL Science 263:526-529(1994). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), AND VARIANT PRO-176. RC TISSUE=Esophagus; 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 GENOMIC DNA]. RX PubMed=16177791; DOI=10.1038/nature03983; RA Nusbaum C., Zody M.C., Borowsky M.L., Kamal M., Kodira C.D., Taylor T.D., RA Whittaker C.A., Chang J.L., Cuomo C.A., Dewar K., FitzGerald M.G., Yang X., RA Abouelleil A., Allen N.R., Anderson S., Bloom T., Bugalter B., Butler J., RA Cook A., DeCaprio D., Engels R., Garber M., Gnirke A., Hafez N., Hall J.L., RA Norman C.H., Itoh T., Jaffe D.B., Kuroki Y., Lehoczky J., Lui A., RA Macdonald P., Mauceli E., Mikkelsen T.S., Naylor J.W., Nicol R., Nguyen C., RA Noguchi H., O'Leary S.B., Piqani B., Smith C.L., Talamas J.A., Topham K., RA Totoki Y., Toyoda A., Wain H.M., Young S.K., Zeng Q., Zimmer A.R., RA Fujiyama A., Hattori M., Birren B.W., Sakaki Y., Lander E.S.; RT "DNA sequence and analysis of human chromosome 18."; RL Nature 437:551-555(2005). RN [4] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2), AND VARIANT PRO-176. RC TISSUE=Prostate; 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 [5] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 245-375 (ISOFORM 1), AND VARIANT RP VAL-319. RC TISSUE=Small intestine; RX PubMed=17974005; DOI=10.1186/1471-2164-8-399; RA Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., RA Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., RA Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., RA Wiemann S., Schupp I.; RT "The full-ORF clone resource of the German cDNA consortium."; RL BMC Genomics 8:399-399(2007). RN [6] RP PROTEIN SEQUENCE OF 341-360, AND CHARACTERIZATION. RX PubMed=7797587; DOI=10.1074/jbc.270.26.15832; RA Pemberton P.A., Wong D.T., Gibson H.L., Kiefer M.C., Fitzpatrick P.A., RA Sager R., Barr P.J.; RT "The tumor suppressor maspin does not undergo the stressed to relaxed RT transition or inhibit trypsin-like serine proteases. Evidence that maspin RT is not a protease inhibitory serpin."; RL J. Biol. Chem. 270:15832-15837(1995). RN [7] RP INTERACTION WITH IRF6. RX PubMed=16049006; DOI=10.1074/jbc.m503523200; RA Bailey C.M., Khalkhali-Ellis Z., Kondo S., Margaryan N.V., Seftor R.E.B., RA Wheaton W.W., Amir S., Pins M.R., Schutte B.C., Hendrix M.J.C.; RT "Mammary serine protease inhibitor (Maspin) binds directly to interferon RT regulatory factor 6: identification of a novel serpin partnership."; RL J. Biol. Chem. 280:34210-34217(2005). RN [8] RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RC TISSUE=Cervix carcinoma; RX PubMed=23186163; DOI=10.1021/pr300630k; RA Zhou H., Di Palma S., Preisinger C., Peng M., Polat A.N., Heck A.J., RA Mohammed S.; RT "Toward a comprehensive characterization of a human cancer cell RT phosphoproteome."; RL J. Proteome Res. 12:260-271(2013). RN [9] RP X-RAY CRYSTALLOGRAPHY (2.1 ANGSTROMS). RX PubMed=15760906; DOI=10.1074/jbc.m412043200; RA Law R.H., Irving J.A., Buckle A.M., Ruzyla K., Buzza M., RA Bashtannyk-Puhalovich T.A., Beddoe T.C., Nguyen K., Worrall D.M., RA Bottomley S.P., Bird P.I., Rossjohn J., Whisstock J.C.; RT "The high resolution crystal structure of the human tumor suppressor maspin RT reveals a novel conformational switch in the G-helix."; RL J. Biol. Chem. 280:22356-22364(2005). RN [10] RP VARIANT [LARGE SCALE ANALYSIS] PRO-176, AND IDENTIFICATION BY MASS RP 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). CC -!- FUNCTION: Tumor suppressor. It blocks the growth, invasion, and CC metastatic properties of mammary tumors. As it does not undergo the S CC (stressed) to R (relaxed) conformational transition characteristic of CC active serpins, it exhibits no serine protease inhibitory activity. CC -!- SUBUNIT: Interacts with IRF6. {ECO:0000269|PubMed:16049006}. CC -!- INTERACTION: CC P36952; Q9Y6M0: PRSS21; NbExp=7; IntAct=EBI-2371394, EBI-7054564; CC -!- SUBCELLULAR LOCATION: Secreted, extracellular space. CC -!- ALTERNATIVE PRODUCTS: CC Event=Alternative splicing; Named isoforms=2; CC Name=1; CC IsoId=P36952-1; Sequence=Displayed; CC Name=2; CC IsoId=P36952-2; Sequence=VSP_037145, VSP_037146; CC -!- TISSUE SPECIFICITY: Normal mammary epithelial cells. CC -!- SIMILARITY: Belongs to the serpin family. Ov-serpin subfamily. CC {ECO:0000305}. CC -!- WEB RESOURCE: Name=Atlas of Genetics and Cytogenetics in Oncology and CC Haematology; CC URL="https://atlasgeneticsoncology.org/gene/42267/SerpinB5"; 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; U04313; AAA18957.1; -; mRNA. DR EMBL; AK312765; BAG35631.1; -; mRNA. DR EMBL; AC036176; -; NOT_ANNOTATED_CDS; Genomic_DNA. DR EMBL; BC020713; AAH20713.1; -; mRNA. DR EMBL; BX640597; CAE45703.1; -; mRNA. DR CCDS; CCDS32839.1; -. [P36952-1] DR PIR; A36898; A36898. DR RefSeq; NP_002630.2; NM_002639.4. [P36952-1] DR PDB; 1WZ9; X-ray; 2.10 A; A/B=1-375. DR PDB; 1XQG; X-ray; 3.10 A; A/B=1-375. DR PDB; 1XQJ; X-ray; 3.10 A; A=1-375. DR PDB; 1XU8; X-ray; 2.80 A; A/B=1-375. DR PDBsum; 1WZ9; -. DR PDBsum; 1XQG; -. DR PDBsum; 1XQJ; -. DR PDBsum; 1XU8; -. DR AlphaFoldDB; P36952; -. DR SMR; P36952; -. DR BioGRID; 111286; 164. DR IntAct; P36952; 54. DR MINT; P36952; -. DR STRING; 9606.ENSP00000372221; -. DR DrugBank; DB04530; S,S-(2-Hydroxyethyl)Thiocysteine. DR MEROPS; I04.980; -. DR GlyCosmos; P36952; 4 sites, No reported glycans. DR GlyGen; P36952; 5 sites, 1 O-linked glycan (1 site). DR iPTMnet; P36952; -. DR MetOSite; P36952; -. DR PhosphoSitePlus; P36952; -. DR SwissPalm; P36952; -. DR BioMuta; SERPINB5; -. DR DMDM; 229462757; -. DR CPTAC; CPTAC-582; -. DR CPTAC; CPTAC-583; -. DR EPD; P36952; -. DR jPOST; P36952; -. DR MassIVE; P36952; -. DR MaxQB; P36952; -. DR PaxDb; 9606-ENSP00000372221; -. DR PeptideAtlas; P36952; -. DR PRIDE; P36952; -. DR ProteomicsDB; 55240; -. [P36952-1] DR ProteomicsDB; 55241; -. [P36952-2] DR Pumba; P36952; -. DR TopDownProteomics; P36952-1; -. [P36952-1] DR Antibodypedia; 4036; 650 antibodies from 43 providers. DR DNASU; 5268; -. DR Ensembl; ENST00000382771.9; ENSP00000372221.4; ENSG00000206075.14. [P36952-1] DR Ensembl; ENST00000489441.5; ENSP00000467158.1; ENSG00000206075.14. [P36952-2] DR GeneID; 5268; -. DR KEGG; hsa:5268; -. DR MANE-Select; ENST00000382771.9; ENSP00000372221.4; NM_002639.5; NP_002630.2. DR UCSC; uc002liy.3; human. [P36952-1] DR AGR; HGNC:8949; -. DR CTD; 5268; -. DR DisGeNET; 5268; -. DR GeneCards; SERPINB5; -. DR HGNC; HGNC:8949; SERPINB5. DR HPA; ENSG00000206075; Tissue enhanced (esophagus, skin). DR MIM; 154790; gene. DR neXtProt; NX_P36952; -. DR OpenTargets; ENSG00000206075; -. DR PharmGKB; PA35515; -. DR VEuPathDB; HostDB:ENSG00000206075; -. DR eggNOG; KOG2392; Eukaryota. DR GeneTree; ENSGT00940000160674; -. DR HOGENOM; CLU_023330_0_2_1; -. DR InParanoid; P36952; -. DR OMA; IFAPLCT; -. DR OrthoDB; 3218836at2759; -. DR PhylomeDB; P36952; -. DR TreeFam; TF352619; -. DR PathwayCommons; P36952; -. DR SignaLink; P36952; -. DR SIGNOR; P36952; -. DR BioGRID-ORCS; 5268; 8 hits in 1153 CRISPR screens. DR ChiTaRS; SERPINB5; human. DR EvolutionaryTrace; P36952; -. DR GeneWiki; Maspin; -. DR GenomeRNAi; 5268; -. DR Pharos; P36952; Tbio. DR PRO; PR:P36952; -. DR Proteomes; UP000005640; Chromosome 18. DR RNAct; P36952; Protein. DR Bgee; ENSG00000206075; Expressed in skin of abdomen and 97 other cell types or tissues. DR ExpressionAtlas; P36952; baseline and differential. DR GO; GO:0001533; C:cornified envelope; IEA:Ensembl. DR GO; GO:0005737; C:cytoplasm; IDA:UniProtKB. DR GO; GO:0005615; C:extracellular space; IBA:GO_Central. DR GO; GO:0016528; C:sarcoplasm; IEA:Ensembl. DR GO; GO:0004867; F:serine-type endopeptidase inhibitor activity; IBA:GO_Central. DR GO; GO:0030198; P:extracellular matrix organization; IEA:Ensembl. DR GO; GO:0002009; P:morphogenesis of an epithelium; IEA:Ensembl. DR GO; GO:0060512; P:prostate gland morphogenesis; IEA:Ensembl. DR GO; GO:0050678; P:regulation of epithelial cell proliferation; IEA:Ensembl. DR CDD; cd02057; serpinB5_maspin; 1. DR Gene3D; 2.30.39.10; Alpha-1-antitrypsin, domain 1; 1. DR Gene3D; 3.30.497.10; Antithrombin, subunit I, domain 2; 1. DR InterPro; IPR000240; Serpin_B9/Maspin. DR InterPro; IPR023795; Serpin_CS. DR InterPro; IPR023796; Serpin_dom. DR InterPro; IPR000215; Serpin_fam. DR InterPro; IPR036186; Serpin_sf. DR InterPro; IPR042178; Serpin_sf_1. DR InterPro; IPR042185; Serpin_sf_2. DR InterPro; IPR033836; SERPINB5_serpin_dom. DR PANTHER; PTHR11461; SERINE PROTEASE INHIBITOR, SERPIN; 1. DR PANTHER; PTHR11461:SF55; SERPIN B5; 1. DR Pfam; PF00079; Serpin; 1. DR PRINTS; PR00676; MASPIN. DR SMART; SM00093; SERPIN; 1. DR SUPFAM; SSF56574; Serpins; 1. DR PROSITE; PS00284; SERPIN; 1. DR Genevisible; P36952; HS. PE 1: Evidence at protein level; KW 3D-structure; Alternative splicing; Direct protein sequencing; KW Glycoprotein; Reference proteome; Secreted. FT CHAIN 1..375 FT /note="Serpin B5" FT /id="PRO_0000032486" FT SITE 340..341 FT /note="Reactive bond homolog" FT /evidence="ECO:0000250" FT CARBOHYD 99 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 133 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 188 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 361 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT VAR_SEQ 190..231 FT /note="TDTKPVQMMNMEATFCMGNIDSINCKIIELPFQNKHLSMFIL -> VCGAAC FT SSKRSPIIDVKNDRDRVGHKSIPMRNLRARPAKCLS (in isoform 2)" FT /evidence="ECO:0000303|PubMed:15489334" FT /id="VSP_037145" FT VAR_SEQ 232..375 FT /note="Missing (in isoform 2)" FT /evidence="ECO:0000303|PubMed:15489334" FT /id="VSP_037146" FT VARIANT 176 FT /note="S -> P (in dbSNP:rs2289519)" FT /evidence="ECO:0000269|PubMed:14702039, FT ECO:0000269|PubMed:15489334, ECO:0000269|PubMed:8290962, FT ECO:0007744|PubMed:21269460" FT /id="VAR_055223" FT VARIANT 187 FT /note="V -> L (in dbSNP:rs2289520)" FT /evidence="ECO:0000269|PubMed:8290962" FT /id="VAR_055224" FT VARIANT 319 FT /note="I -> V (in dbSNP:rs1455555)" FT /evidence="ECO:0000269|PubMed:17974005" FT /id="VAR_022115" FT CONFLICT 66 FT /note="V -> I (in Ref. 1; AAA18957)" FT /evidence="ECO:0000305" FT CONFLICT 245 FT /note="K -> Q (in Ref. 5; CAE45703)" FT /evidence="ECO:0000305" FT HELIX 2..22 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 28..30 FT /evidence="ECO:0007829|PDB:1XQG" FT HELIX 32..45 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 48..57 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 60..62 FT /evidence="ECO:0007829|PDB:1XQG" FT HELIX 66..80 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 81..83 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 84..95 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 96..98 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 102..108 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 109..115 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 116..119 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 121..123 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 125..139 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 140..142 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 147..150 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 159..168 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 171..173 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 177..179 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 181..190 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 192..209 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 210..213 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 214..221 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 222..224 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 225..235 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 239..249 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 252..258 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 261..263 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 265..274 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 276..282 FT /evidence="ECO:0007829|PDB:1WZ9" FT HELIX 284..291 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 295..297 FT /evidence="ECO:0007829|PDB:1XU8" FT TURN 299..301 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 305..307 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 315..326 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 337..341 FT /evidence="ECO:0007829|PDB:1XQG" FT STRAND 344..349 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 354..360 FT /evidence="ECO:0007829|PDB:1WZ9" FT TURN 361..364 FT /evidence="ECO:0007829|PDB:1WZ9" FT STRAND 365..372 FT /evidence="ECO:0007829|PDB:1WZ9" SQ SEQUENCE 375 AA; 42100 MW; 9F24E18505912804 CRC64; MDALQLANSA FAVDLFKQLC EKEPLGNVLF SPICLSTSLS LAQVGAKGDT ANEIGQVLHF ENVKDVPFGF QTVTSDVNKL SSFYSLKLIK RLYVDKSLNL STEFISSTKR PYAKELETVD FKDKLEETKG QINNSIKDLT DGHFENILAD NSVNDQTKIL VVNAAYFVGK WMKKFSESET KECPFRVNKT DTKPVQMMNM EATFCMGNID SINCKIIELP FQNKHLSMFI LLPKDVEDES TGLEKIEKQL NSESLSQWTN PSTMANAKVK LSIPKFKVEK MIDPKACLEN LGLKHIFSED TSDFSGMSET KGVALSNVIH KVCLEITEDG GDSIEVPGAR ILQHKDELNA DHPFIYIIRH NKTRNIIFFG KFCSP //