{"id":1621,"date":"2026-06-26T15:29:06","date_gmt":"2026-06-26T14:29:06","guid":{"rendered":"http:\/\/seamlessbio.de\/?page_id=1621"},"modified":"2026-07-06T21:34:01","modified_gmt":"2026-07-06T20:34:01","slug":"antibody-production","status":"publish","type":"page","link":"https:\/\/seamlessbio.de\/de\/antibody-production\/","title":{"rendered":"Application Antibody Production"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1621\" class=\"elementor elementor-1621\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5a2ad23 e-con e-atomic-element e-flexbox-base e-ae66f5f \" data-id=\"5a2ad23\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"5a2ad23\">\n    \t\t<div class=\"elementor-element elementor-element-b9779f8 elementor-widget elementor-widget-html\" data-id=\"b9779f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- YOAST SEO SETTINGS\nSlug:             applications\/hybridoma-monoclonal-antibody-production\nFocus Keyword:    hybridoma culture monoclonal antibody production FBS Ultra Low IgG serum\nSEO Title (EN):   Hybridoma Culture & Monoclonal Antibody Production \u2014 Serum Guide | SeamlessBio\nMeta Desc (EN):   Complete serum guide for hybridoma workflows. FBS Ultra Low IgG for HAT selection, screening and expansion. Animal sera for immunisation. BSA for ELISA, conjugation, formulation. 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.cta{padding:36px 20px;}}\n<\/style>\n<div class=\"wrap\">\n  <div class=\"bc\">\n    <a href=\"http:\/\/seamlessbio.de\/\">Home<\/a><span>\/<\/span>\n    <a href=\"https:\/\/www.seamlessbio.de\/applications\/\">Applications<\/a><span>\/<\/span>\n    <strong>Hybridoma &amp; mAb Production<\/strong>\n  <\/div>\n\n  <div class=\"hero\">\n    <span class=\"ey\">SeamlessBio \u2014 FBS Ultra Low IgG \u00b7 Animal Sera \u00b7 BSA \u00b7 mAb Production<\/span>\n    <h1>Hybridoma Culture &amp; Monoclonal Antibody Production \u2014 Serum Selection Guide<\/h1>\n    <p class=\"sub\">Hybridoma technology remains the foundation of monoclonal antibody discovery. Four of the ten best-selling antibody drugs originate from hybridoma-based programmes. Every hybridoma lab requires serum \u2014 and the grade used directly determines fusion efficiency, clone detection sensitivity, and antibody purity. This guide covers the complete workflow from immunisation to formulation.<\/p>\n    <div class=\"hbtns\">\n      <a href=\"https:\/\/www.seamlessbio.de\/about-us\/contact-imprint\/\" class=\"btn1\">Contact Us<\/a>\n      <a href=\"https:\/\/shop.seamlessbio.de\" class=\"btn2\">View in Shop<\/a>\n    <\/div>\n  <\/div>\n\n  <div class=\"note\">\n    <strong>Why FBS Ultra Low IgG is the correct grade for hybridoma culture:<\/strong>\n    Standard FBS contains 200\u2013800 \u00b5g\/mL bovine IgG. In hybridoma supernatant screening, bovine IgG creates high background signal in ELISA \u2014 masking low-titre clones. In downstream purification, bovine IgG co-purifies with the target mAb on Protein A\/G columns, reducing purity. FBS Ultra Low IgG &lt;5 \u00b5g\/mL eliminates both problems at source.\n  <\/div>\n\n  <!-- WORKFLOW TABLE -->\n  <div class=\"sec\">\n    <h2>Hybridoma Workflow \u2014 Serum at Each Stage<\/h2>\n    <div class=\"tw\">\n      <table>\n        <thead><tr><th>Stage<\/th><th>Process Step<\/th><th>Recommended Product<\/th><th>Key Note<\/th><\/tr><\/thead>\n        <tbody>\n          <tr>\n            <td><span class=\"pl\">Immunisation<\/span><\/td>\n            <td>Host animal immunisation (mouse, rat, rabbit, goat)<\/td>\n            <td>Species-matched pre-immune serum as negative ELISA control:<br>\n            <a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Mouse<\/a> | <a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Rat<\/a> | <a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Rabbit<\/a> | <a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Goat Serum<\/a><\/td>\n            <td>Pre-immune serum required as negative control for titre monitoring throughout the immunisation programme<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"pl\">Fusion<\/span><\/td>\n            <td>B cell \/ myeloma cell fusion \u2014 PEG or electrofusion<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/fetal-bovine-serum\/fbs-ultra-low-igg-low-igg\">FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/a> \u2014 10\u201320% in HAT medium<\/td>\n            <td>Low IgG reduces ELISA background in post-fusion screening. HAT medium requires high-quality serum for hypoxanthine\/thymidine uptake efficiency.<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"pl\">HAT Selection<\/span><\/td>\n            <td>Selective culture of hybridoma clones in HAT medium<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/fetal-bovine-serum\/fbs-ultra-low-igg-low-igg\">FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/a> \u2014 10\u201320%<\/td>\n            <td>Consistent lot quality critical \u2014 HAT selection efficiency varies with FBS lot. Batch reservation strongly recommended.<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"pl\">Screening<\/span><\/td>\n            <td>ELISA screening of hybridoma supernatants<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/fetal-bovine-serum\/fbs-ultra-low-igg-low-igg\">FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/a> + <a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-low-endotoxin\">BSA Low Endotoxin<\/a> for ELISA blocking<\/td>\n            <td>Bovine IgG creates ELISA background that masks low-titre positive clones. BSA Low Endotoxin at 1\u20133% in PBS-Tween as blocking agent.<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"pl\">Cloning<\/span><\/td>\n            <td>Limited dilution or FACS single-cell sorting<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/fetal-bovine-serum\/fbs-ultra-low-igg-low-igg\">FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/a> \u2014 20% for single-cell recovery<\/td>\n            <td>Higher serum supports single-cell recovery. Feeder cells (peritoneal macrophages) \u2014 species-matched serum recommended.<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"pl\">Expansion<\/span><\/td>\n            <td>Scale-up of positive clones<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/fetal-bovine-serum\/fbs-ultra-low-igg-low-igg\">FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/a> \u2014 5\u201310%<\/td>\n            <td>Reduce serum at expansion to lower bovine IgG load in supernatant before purification.<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"pl\">Production<\/span><\/td>\n            <td>Antibody production \u2014 static flasks, roller bottles, bioreactor<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/fetal-bovine-serum\/fbs-ultra-low-igg-low-igg\">FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/a> \u2014 2\u20135% or serum-free<\/td>\n            <td>Minimise serum at production \u2014 less bovine IgG co-purification on Protein A\/G. Serum-free preferred for GMP-grade mAb.<\/td>\n          <\/tr>\n          <tr>\n            <td><span class=\"pl\">Purification<\/span><\/td>\n            <td>Protein A\/G, buffer exchange, formulation<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-low-endotoxin\">BSA Low Endotoxin \u22645 EU\/mg<\/a> in formulation buffer<\/td>\n            <td>BSA at 0.001\u20130.1% prevents mAb adsorption to vial surfaces. Low Endotoxin grade essential.<\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n  <\/div>\n\n  <!-- FBS COMPARISON -->\n  <div class=\"sec\">\n    <h2>Standard FBS vs FBS Ultra Low IgG \u2014 What Difference It Makes<\/h2>\n    <div class=\"tw\">\n      <table>\n        <thead><tr><th>Parameter<\/th><th>Standard FBS<\/th><th>FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/th><\/tr><\/thead>\n        <tbody>\n          <tr><td><strong>Bovine IgG content<\/strong><\/td><td>200\u2013800 \u00b5g\/mL<\/td><td>&lt;5 \u00b5g\/mL \u2014 chromatographically depleted<\/td><\/tr>\n          <tr><td><strong>ELISA screening background<\/strong><\/td><td>High \u2014 bovine IgG cross-reacts with anti-mouse\/rabbit secondary antibodies<\/td><td>Minimal \u2014 background eliminated<\/td><\/tr>\n          <tr><td><strong>Protein A\/G purification<\/strong><\/td><td>Bovine IgG co-purifies \u2014 reduces mAb purity<\/td><td>No bovine IgG co-purification<\/td><\/tr>\n          <tr><td><strong>Clone detection sensitivity<\/strong><\/td><td>Low-titre clones masked by background<\/td><td>Full detection sensitivity \u2014 no masking<\/td><\/tr>\n          <tr><td><strong>Growth factors \/ albumin<\/strong><\/td><td>Standard levels<\/td><td>Fully retained \u2014 depletion is IgG-specific only<\/td><\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n  <\/div>\n\n  <!-- ANIMAL SERA -->\n  <div class=\"sec\">\n    <h2>Animal Sera for Immunisation \u2014 Pre-Immune Controls<\/h2>\n    <p>Species-matched serum is required as a negative control at each stage of the immunisation programme \u2014 pre-immune baseline, mid-programme titre checks, terminal bleed comparison. SeamlessBio supplies sera from all common laboratory animal species.<\/p>\n    <div class=\"tw\">\n      <table>\n        <thead><tr><th>Species<\/th><th>Application in mAb Programme<\/th><th>Product<\/th><\/tr><\/thead>\n        <tbody>\n          <tr><td><strong>Mouse (BALB\/c)<\/strong><\/td><td>Most common hybridoma host \u2014 pre-immune serum for ELISA baseline. Normal mouse serum as negative control throughout.<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Mouse Serum \u2192<\/a><\/td><\/tr>\n          <tr><td><strong>Rat<\/strong><\/td><td>Rat hybridoma programmes. Rat anti-mouse antibody production.<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Rat Serum \u2192<\/a><\/td><\/tr>\n          <tr><td><strong>Rabbit<\/strong><\/td><td>High-affinity antibody programmes. B cell immortalisation. Pre-immune control.<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Rabbit Serum \u2192<\/a><\/td><\/tr>\n          <tr><td><strong>Goat<\/strong><\/td><td>Polyclonal antibody production. Pre-immune goat serum as ELISA blocking agent for goat-derived secondary antibodies.<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Goat Serum \u2192<\/a><\/td><\/tr>\n          <tr><td><strong>Sheep<\/strong><\/td><td>Sheep polyclonal programmes. Normal sheep serum as blocking agent.<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Sheep Serum \u2192<\/a><\/td><\/tr>\n          <tr><td><strong>Guinea Pig<\/strong><\/td><td>Complement source in CDC and complement fixation assays. Highly potent complement activity.<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">Guinea Pig Serum \u2192<\/a><\/td><\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n  <\/div>\n\n  <!-- BSA TABLE -->\n  <div class=\"sec\">\n    <h2>BSA in Antibody Production \u2014 Key Applications<\/h2>\n    <div class=\"tw\">\n      <table>\n        <thead><tr><th>Application<\/th><th>BSA Grade<\/th><th>Concentration<\/th><th>Function<\/th><\/tr><\/thead>\n        <tbody>\n          <tr><td>ELISA blocking buffer<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-low-endotoxin\">BSA Low Endotoxin \u22645 EU\/mg<\/a><\/td><td>1\u20133% in PBS-T<\/td><td>Blocks non-specific binding \u2014 low endotoxin critical to avoid cell activation during blocking<\/td><\/tr>\n          <tr><td>Antibody dilution buffer<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-low-endotoxin\">BSA Low Endotoxin<\/a><\/td><td>0.1\u20131%<\/td><td>Stabilises antibody during serial dilution \u2014 prevents adsorption to tube surfaces<\/td><\/tr>\n          <tr><td>Conjugation buffer (HRP, biotin, fluorophore)<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-fatty-acid-free\">BSA Fatty Acid-Free<\/a><\/td><td>0.1%<\/td><td>Protein stabiliser during conjugation reactions \u2014 fatty acid-free eliminates lipid interference<\/td><\/tr>\n          <tr><td>Formulation buffer<\/td><td><a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-low-endotoxin\">BSA Low Endotoxin<\/a><\/td><td>0.001\u20130.1%<\/td><td>Prevents mAb adsorption to vial surfaces during low-concentration antibody storage<\/td><\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n  <\/div>\n\n  <!-- HUMAN SERUM FOR HUMAN HYBRIDOMA -->\n  <div class=\"sec\">\n    <h2>Human Serum AB for Human Hybridoma &amp; EBV Immortalisation<\/h2>\n    <p>For human mAb programmes using EBV immortalisation of human B cells or human hybridoma technology, human serum is required \u2014 not FBS. Human B cells require a species-matched matrix.<\/p>\n    <div class=\"tw\">\n      <table>\n        <thead><tr><th>Application<\/th><th>Product<\/th><th>Why<\/th><\/tr><\/thead>\n        <tbody>\n          <tr>\n            <td>EBV-immortalised human B cell culture<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/human-sera-plasma-and-more\/human-serum-type-ab-male\">Human Serum AB Heat Inactivated<\/a> \u2014 10%<\/td>\n            <td>HI eliminates complement-mediated lysis of EBV-immortalised B cells. AB type prevents blood group agglutination.<\/td>\n          <\/tr>\n          <tr>\n            <td>Human hybridoma culture<\/td>\n            <td><a href=\"https:\/\/www.seamlessbio.de\/products\/human-sera-plasma-and-more\/human-serum-type-ab-male\">Human Serum AB HI<\/a> \u2014 10\u201320%<\/td>\n            <td>Species-matched matrix for human \u00d7 human hybridoma products. Eliminates xenogenic stimulation from bovine components.<\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n  <\/div>\n\n  <!-- FAQ -->\n  <div class=\"faq\">\n    <h2>Frequently Asked Questions<\/h2>\n    <div class=\"faq-item\">\n      <div class=\"faq-q\">Why is FBS Ultra Low IgG required for hybridoma culture?<\/div>\n      <div class=\"faq-a\">Standard FBS contains 200\u2013800 \u00b5g\/mL bovine IgG. When hybridoma supernatants are screened by ELISA with anti-mouse or anti-rabbit secondary antibodies, the secondary cross-reacts with bovine IgG \u2014 creating background that masks low-titre positive clones. Additionally, bovine IgG co-purifies with the target mAb on Protein A\/G columns, reducing final purity. FBS Ultra Low IgG &lt;5 \u00b5g\/mL eliminates both problems at source.<\/div>\n    <\/div>\n    <div class=\"faq-item\">\n      <div class=\"faq-q\">What BSA grade for ELISA blocking in hybridoma screening?<\/div>\n      <div class=\"faq-a\">BSA Low Endotoxin \u22645 EU\/mg is the correct grade. High-endotoxin BSA activates cells during blocking incubation and generates non-specific ELISA signal. For maximum assay sensitivity in hybridoma screening ELISAs, BSA Low Endotoxin at 1\u20133% in PBS-Tween blocking buffer is the standard approach.<\/div>\n    <\/div>\n    <div class=\"faq-item\">\n      <div class=\"faq-q\">Can I use standard FBS for the immunisation stage?<\/div>\n      <div class=\"faq-a\">The immunisation stage does not involve cell culture \u2014 it is an in vivo process. FBS is not used for immunisation. What is required is species-matched pre-immune serum from the host animal as a negative ELISA control for titre monitoring throughout the immunisation programme.<\/div>\n    <\/div>\n    <div class=\"faq-item\">\n      <div class=\"faq-q\">Which serum for guinea pig complement in CDC assays?<\/div>\n      <div class=\"faq-a\">Normal Guinea Pig Serum is the standard complement source for CDC and complement fixation assays. Guinea pig complement is highly active and broadly reactive \u2014 the conventional choice for CDC assays in hybridoma-derived anti-tumour mAb characterisation.<\/div>\n    <\/div>\n  <\/div>\n\n  <!-- RELATED -->\n  <div class=\"related\">\n    <h3>Related Applications &amp; Products<\/h3>\n    <div class=\"rel-grid\">\n      <a href=\"https:\/\/www.seamlessbio.de\/applications\/cytotoxicity-assays\">\u2192 Cytotoxicity Assays \u2014 ADCC, CDC<\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/applications\/pbmc-immunology\">\u2192 PBMC &amp; Immunology Guide<\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/fetal-bovine-serum\/fbs-ultra-low-igg-low-igg\">\u2192 FBS Ultra Low IgG &lt;5 \u00b5g\/mL<\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-low-endotoxin\">\u2192 BSA Low Endotoxin<\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/human-sera-plasma-and-more\/human-serum-type-ab-male\">\u2192 Human Serum AB HI<\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\">\u2192 All Animal Sera \u2014 16 Species<\/a>\n    <\/div>\n  <\/div>\n\n  <div class=\"hub-back\"><a href=\"https:\/\/www.seamlessbio.de\/applications\/\">\u2190 All Application Guides Overview<\/a><\/div>\n\n  <div class=\"cta\">\n    <h2>Request Free Test Volumes<\/h2>\n    <p>FBS Ultra Low IgG, animal sera, and BSA Low Endotoxin samples available. Lot-specific IgG data. Batch reservation for extended hybridoma programmes.<br>Email: info@seamlessbio.de | +49 851 37932226<\/p>\n    <div class=\"ctabtns\">\n      <a href=\"mailto:info@seamlessbio.de\" class=\"ctab1\">Contact Us<\/a>\n      <a href=\"https:\/\/shop.seamlessbio.de\" class=\"ctab2\">View in Shop<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/www.seamlessbio.de\/applications\/hybridoma-monoclonal-antibody-production#faqpage\",\n      \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why is FBS Ultra Low IgG required for hybridoma culture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard FBS contains 200\u2013800 \u00b5g\/mL bovine IgG. When hybridoma supernatants are screened by ELISA with anti-mouse or anti-rabbit secondary antibodies, the secondary cross-reacts with bovine IgG \u2014 creating background that masks low-titre positive clones. Additionally, bovine IgG co-purifies with the target mAb on Protein A\/G columns, reducing final purity. FBS Ultra Low IgG &lt;5 \u00b5g\/mL eliminates both problems at source.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What BSA grade for ELISA blocking in hybridoma screening?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"BSA Low Endotoxin \u22645 EU\/mg is the correct grade. High-endotoxin BSA activates cells during blocking incubation and generates non-specific ELISA signal. 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