Protein Phosphatase 1 Regulatory Subunit 15A Antibodies

Supplier	Product		Quantity	Reactivity	Applications	Datasheet
Santa Cruz Biotechnology	sc-373815 AF790	More Data sc-373815 AF790 Mouse Anti-PR15A antibody, Monoclonal[B-10], near-IR 200 ug Hu FACS, IF, WB	200 ug	Hu	FACS, IF, WB	More Data
Origene	TA504359S	More Data TA504359S Mouse Anti-PR15A antibody, Monoclonal[OTI1D9] 30 ul Hu FACS, IHC-F, IHC-P, WB WB	30 ul	Hu	FACS, IHC-F, IHC-P, WB	More Data
United States Biological	G1017-10A	More Data G1017-10A Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[G1017-10A] 100 ug Hu ELISA, WB	100 ug	Hu	ELISA, WB	More Data

View 29 Matching ELISA Kits from 3 suppliers

Protein Phosphatase 1 Regulatory Subunit 15A antibodies

177 Protein Phosphatase 1 Regulatory Subunit 15A antibodies from 22 antibody suppliers Click each Protein Phosphatase 1 Regulatory Subunit 15A antibody that interests you to view the full Protein Phosphatase 1 Regulatory Subunit 15A antibody datasheet.
View only Protein Phosphatase 1 Regulatory Subunit 15A Monoclonal Antibodies or Protein Phosphatase 1 Regulatory Subunit 15A Polyclonal Antibodies

Product		Quantity	Reactivity Filter	Applications Filter	Datasheet
Santa Cruz Biotechnology
sc-373815 AF790	More Data sc-373815 AF790 Mouse Anti-PR15A antibody, Monoclonal[B-10], near-IR 200 ug Hu FACS, IF, WB	200 ug	Hu	FACS, IF, WB	More Data
sc-373815 AF594	More Data sc-373815 AF594 Mouse Anti-PR15A antibody, Monoclonal[B-10], Orange 200 ug Hu FACS, IF, IHC-P, WB	200 ug	Hu	FACS, IF, IHC-P, WB	More Data
sc-373815 AF546	More Data sc-373815 AF546 Mouse Anti-PR15A antibody, Monoclonal[B-10], Yellow 200 ug Hu FACS, IF, IHC-P, WB	200 ug	Hu	FACS, IF, IHC-P, WB	More Data
sc-373815 AF680	More Data sc-373815 AF680 Mouse Anti-PR15A antibody, Monoclonal[B-10], Far-Red 200 ug Hu FACS, IF, WB	200 ug	Hu	FACS, IF, WB	More Data
Show more from Santa Cruz Biotechnology
sc-522513	More Data sc-522513 Mouse Anti-PR15A antibody, Monoclonal[B-10] 1 Kit Hu ELISA, IF, IP, WB	1 Kit	Hu	ELISA, IF, IP, WB	More Data
sc-373815	More Data sc-373815 Mouse Anti-PR15A antibody, Monoclonal[B-10] 200 ug Hu ELISA, IF, IP, WB	200 ug	Hu	ELISA, IF, IP, WB	More Data
sc-46661	More Data sc-46661 Mouse Anti-PR15A antibody, Monoclonal[D-8] 200 ug Hu ELISA, IF, IP, WB	200 ug	Hu	ELISA, IF, IP, WB	More Data
sc-373815 AF647	More Data sc-373815 AF647 Mouse Anti-PR15A antibody, Monoclonal[B-10], Red 200 ug Hu	200 ug	Hu		More Data
sc-373815 AF488	More Data sc-373815 AF488 Mouse Anti-PR15A antibody, Monoclonal[B-10], Green 200 ug Hu	200 ug	Hu		More Data
sc-373815 PE	More Data sc-373815 PE Mouse Anti-PR15A antibody, Monoclonal[B-10], Red 200 ug Hu	200 ug	Hu		More Data
sc-373815 HRP	More Data sc-373815 HRP Mouse Anti-PR15A antibody, Monoclonal[B-10], HRP 200 ug Hu	200 ug	Hu		More Data
sc-373815 FITC	More Data sc-373815 FITC Mouse Anti-PR15A antibody, Monoclonal[B-10], FITC 200 ug Hu	200 ug	Hu		More Data
sc-373815 AC	More Data sc-373815 AC Mouse Anti-PR15A antibody, Monoclonal[B-10] 500 ug Hu	500 ug	Hu		More Data
Origene
TA504359S	More Data TA504359S Mouse Anti-PR15A antibody, Monoclonal[OTI1D9] 30 ul Hu FACS, IHC-F, IHC-P, WB WB	30 ul	Hu	FACS, IHC-F, IHC-P, WB	More Data
TA504309S	More Data TA504309S Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[OTI2F12] 30 ul Hu, Mo FACS, IF, WB WB	30 ul	Hu, Mo	FACS, IF, WB	More Data
TA504313S	More Data TA504313S Mouse Anti-PR15A antibody, Monoclonal[OTI1H1] 30 ul Hu FACS, IF, IHC-F, IHC-P, WB WB	30 ul	Hu	FACS, IF, IHC-F, IHC-P, WB	More Data
TA504313	More Data TA504313 Mouse Anti-PR15A antibody, Monoclonal[4F1] 100 ul Hu FACS, IF, WB FACS IF WB	100 ul	Hu	FACS, IF, WB	More Data
Show more from Origene
TA504309	More Data TA504309 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[2B11] 100 ul Hu, Mo FACS, IF, WB FACS IF WB	100 ul	Hu, Mo	FACS, IF, WB	More Data
TA504310	More Data TA504310 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[3D12] 100 ul Cn, Hu, Mo, Pr, Rt FACS, IF, WB FACS IF WB	100 ul	Cn, Hu, Mo, Pr, Rt	FACS, IF, WB	More Data
TA504359	More Data TA504359 Mouse Anti-PR15A antibody, Monoclonal[10] 100 ul Hu FACS, IHC-F, IHC-P, WB FACS WB	100 ul	Hu	FACS, IHC-F, IHC-P, WB	More Data
CF504359	More Data CF504359 Mouse Anti-PR15A antibody, Monoclonal[Clone OTI1E1] 100 ug Hu AP, IHC-F, IHC-P, WB WB	100 ug	Hu	AP, IHC-F, IHC-P, WB	More Data
SP1389P	More Data SP1389P Goat Anti-PR15A antibody, Polyclonal 100 ug Hu WB WB	100 ug	Hu	WB	More Data
TA504310S	More Data TA504310S Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[Clone OTI3D12] 30 ul Cn, Hu, Mo, Pr, Rt AP, IF, IHC-F, IHC-P, WB WB	30 ul	Cn, Hu, Mo, Pr, Rt	AP, IF, IHC-F, IHC-P, WB	More Data
CF504309	More Data CF504309 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[Clone OTI2B11] 100 ug Hu, Mo AP, IF, WB WB	100 ug	Hu, Mo	AP, IF, WB	More Data
CF504313	More Data CF504313 Mouse Anti-PR15A antibody, Monoclonal[Clone OTI4F1] 100 ug Hu AP, IF, IHC-F, IHC-P, WB WB	100 ug	Hu	AP, IF, IHC-F, IHC-P, WB	More Data
CF504310	More Data CF504310 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[Clone OTI3D12] 100 ug Cn, Hu, Mo, Pr, Rt AP, IF, IHC-F, IHC-P, WB WB	100 ug	Cn, Hu, Mo, Pr, Rt	AP, IF, IHC-F, IHC-P, WB	More Data
TA302708	More Data TA302708 Goat Anti-PR15A antibody, Polyclonal 100 ug Hu ELISA, WB WB	100 ug	Hu	ELISA, WB	More Data
TA504310AM	More Data TA504310AM Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[OTI3D12] 100 ul Cn, Hu, Mo, Pr, Rt FACS, IF, IHC-F, IHC-P, WB	100 ul	Cn, Hu, Mo, Pr, Rt	FACS, IF, IHC-F, IHC-P, WB	More Data
TA504313BM	More Data TA504313BM Mouse Anti-PR15A antibody, Monoclonal[OTI4F1] 100 ul Hu FACS, IF, IHC-F, IHC-P, WB	100 ul	Hu	FACS, IF, IHC-F, IHC-P, WB	More Data
TA504313AM	More Data TA504313AM Mouse Anti-PR15A antibody, Monoclonal[OTI4F1] 100 ul Hu FACS, IF, IHC-F, IHC-P, WB	100 ul	Hu	FACS, IF, IHC-F, IHC-P, WB	More Data
TA504309AM	More Data TA504309AM Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[OTI2B11] 100 ul Hu, Mo FACS, IF, WB	100 ul	Hu, Mo	FACS, IF, WB	More Data
TA504309BM	More Data TA504309BM Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[OTI2B11] 100 ul Hu, Mo FACS, IF, WB	100 ul	Hu, Mo	FACS, IF, WB	More Data
TA504310BM	More Data TA504310BM Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[OTI3D12] 100 ul Cn, Hu, Mo, Pr, Rt FACS, IF, IHC-F, IHC-P, WB	100 ul	Cn, Hu, Mo, Pr, Rt	FACS, IF, IHC-F, IHC-P, WB	More Data
TA504359BM	More Data TA504359BM Mouse Anti-PR15A antibody, Monoclonal[OTI1E1] 100 ul Hu FACS, IHC-F, IHC-P, WB	100 ul	Hu	FACS, IHC-F, IHC-P, WB	More Data
TA504359AM	More Data TA504359AM Mouse Anti-PR15A antibody, Monoclonal[OTI1E1] 100 ul Hu FACS, IHC-F, IHC-P, WB	100 ul	Hu	FACS, IHC-F, IHC-P, WB	More Data
United States Biological
G1017-10A	More Data G1017-10A Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[G1017-10A] 100 ug Hu ELISA, WB	100 ug	Hu	ELISA, WB	More Data
G1017-10C	More Data G1017-10C Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[G1017-10C] 100 ug Hu, Mo ELISA, WB	100 ug	Hu, Mo	ELISA, WB	More Data
G1017-10B	More Data G1017-10B Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[G1017-10B] 100 ug Hu WB	100 ug	Hu	WB	More Data
G1017-10	More Data G1017-10 Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 100 ug Hu WB	100 ug	Hu	WB	More Data
Show more from United States Biological
G1017-10C-Biotin	More Data G1017-10C-Biotin Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal, Biotin 100 ul Hu, Mo AP, ELISA, WB	100 ul	Hu, Mo	AP, ELISA, WB	More Data
G1017-10C-HRP	More Data G1017-10C-HRP Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal, HRP 100 ul Hu, Mo AP, ELISA, WB	100 ul	Hu, Mo	AP, ELISA, WB	More Data
G1017-10C-FITC	More Data G1017-10C-FITC Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal, FITC 100 ul Hu, Mo AP, ELISA, WB	100 ul	Hu, Mo	AP, ELISA, WB	More Data
FineTest
FNab03293	More Data FNab03293 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 100 ug Hu, Mo, Rt ELISA, IF, IHC-F, IHC-P, WB IF IHC-F IHC-P WB	100 ug	Hu, Mo, Rt	ELISA, IF, IHC-F, IHC-P, WB	More Data
FNab10772	More Data FNab10772 Rabbit Anti-PR15A antibody, Polyclonal 100 ug Hu ELISA, IHC-F, IHC-P, WB IHC-F IHC-P WB	100 ug	Hu	ELISA, IHC-F, IHC-P, WB	More Data
Bio-Rad (formerly AbD Serotec)
AHP683	More Data AHP683 Goat Anti-PR15A antibody, Polyclonal 100 ug Hu WB WB	100 ug	Hu	WB	More Data
St John's Laboratory
STJ70012	More Data STJ70012 Goat Anti-Protein phosphatase 1 regulatory subunit 15A antibody, Polyclonal 100 ug Hu ELISA, IHC-P, WB WB	100 ug	Hu	ELISA, IHC-P, WB	More Data
STJ98676	More Data STJ98676 Rabbit Anti-Protein phosphatase 1 regulatory subunit 15A antibody, Polyclonal 100 ul Hu ELISA, WB WB	100 ul	Hu	ELISA, WB	More Data
ABclonal Technology
A5590	More Data A5590 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 200 ul Bac, Hu, Mo, Rb IF, IHC-F, IHC-P, WB WB	200 ul	Bac, Hu, Mo, Rb	IF, IHC-F, IHC-P, WB	More Data
Lifespan Biosciences
LS-C173753	More Data LS-C173753 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[3D12] 100 ul Cn, Hu, Mo, Pr, Rt FACS, IF, IHC-F, IHC-P, WB FACS IF IHC-F IHC-P WB	100 ul	Cn, Hu, Mo, Pr, Rt	FACS, IF, IHC-F, IHC-P, WB	More Data
LS-C173755	More Data LS-C173755 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[4F1] 1 Vial Hu FACS, IF, IHC-F, IHC-P, WB FACS IF IHC-F IHC-P WB	1 Vial	Hu	FACS, IF, IHC-F, IHC-P, WB	More Data
LS-C55303	More Data LS-C55303 Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu ELISA, FACS, IF, IHC-F, IHC-P, WB FACS IF IHC-F IHC-P WB	1 Vial	Hu	ELISA, FACS, IF, IHC-F, IHC-P, WB	More Data
LS-C173778	More Data LS-C173778 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[1.00E+01] 1 Vial Hu FACS, IHC-F, IHC-P, WB FACS IHC-F IHC-P WB	1 Vial	Hu	FACS, IHC-F, IHC-P, WB	More Data
Show more from Lifespan Biosciences
LS-C786897	More Data LS-C786897 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[LS-C786897] 1 Vial Hu, Mo FACS, IF, WB IF WB	1 Vial	Hu, Mo	FACS, IF, WB	More Data
LS-C337630	More Data LS-C337630 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[OTI2B11] 1 Vial Hu, Mo FACS, IF, WB IF WB	1 Vial	Hu, Mo	FACS, IF, WB	More Data
LS-C374346	More Data LS-C374346 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Mo IHC-P, WB IHC-P WB	1 Vial	Mo	IHC-P, WB	More Data
LS-C813857	More Data LS-C813857 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu ELISA, WB WB	1 Vial	Hu	ELISA, WB	More Data
LS-C374345	More Data LS-C374345 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Rt WB WB	1 Vial	Rt	WB	More Data
LS-C702171	More Data LS-C702171 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal, Orange 1 Vial Mo WB WB	1 Vial	Mo	WB	More Data
LS-C702170	More Data LS-C702170 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal, Orange 1 Vial Rt WB WB	1 Vial	Rt	WB	More Data
LS-C146499	More Data LS-C146499 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu, Pr WB	1 Vial	Hu, Pr	WB	More Data
LS-C665719	More Data LS-C665719 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu ELISA, IF, IHC-F, IHC-P, WB	1 Vial	Hu	ELISA, IF, IHC-F, IHC-P, WB	More Data
LS-C42924	More Data LS-C42924 Goat Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial WB	1 Vial		WB	More Data
LS-C772670	More Data LS-C772670 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu ELISA, WB	1 Vial	Hu	ELISA, WB	More Data
LS-C780093	More Data LS-C780093 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu ELISA, WB	1 Vial	Hu	ELISA, WB	More Data
LS-C808856	More Data LS-C808856 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu, Mo, Rt ELISA, IHC-F, IHC-P, WB	1 Vial	Hu, Mo, Rt	ELISA, IHC-F, IHC-P, WB	More Data
LS-C786899	More Data LS-C786899 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[LS-C786899] 1 Vial Hu FACS, IF, IHC-F, IHC-P, WB	1 Vial	Hu	FACS, IF, IHC-F, IHC-P, WB	More Data
LS-C786901	More Data LS-C786901 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[LS-C786901] 1 Vial Cn, Hu, Mo, Pr, Rt FACS, IF, IHC-F, IHC-P, WB	1 Vial	Cn, Hu, Mo, Pr, Rt	FACS, IF, IHC-F, IHC-P, WB	More Data
LS-C786938	More Data LS-C786938 Mouse Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Monoclonal[LS-C786938] 1 Vial Hu FACS, IHC-F, IHC-P, WB	1 Vial	Hu	FACS, IHC-F, IHC-P, WB	More Data
LS-C348851	More Data LS-C348851 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu ELISA, IHC-F, WB	1 Vial	Hu	ELISA, IHC-F, WB	More Data
LS-C355553	More Data LS-C355553 Rabbit Anti-Protein Phosphatase 1 Regulatory Subunit 15A antibody, Polyclonal 1 Vial Hu IF, WB	1 Vial	Hu	IF, WB	More Data
Atlas Antibodies
HPA020240	More Data HPA020240 Rabbit Anti-PR15A antibody, Polyclonal 100 ul Hu IHC-F, IHC-P IHC-F IHC-P	100 ul	Hu	IHC-F, IHC-P	More Data
GeneTex
GTX74479	More Data GTX74479 Goat Anti-PR15A antibody, Polyclonal 100 ug Hu FACS, ICC, IF, IHC-P, WB FACS ICC IF IHC-P WB	100 ug	Hu	FACS, ICC, IF, IHC-P, WB	More Data
GTX115747	More Data GTX115747 Rabbit Anti-PR15A antibody, Polyclonal 100 ul Hu WB WB	100 ul	Hu	WB	More Data

Related antibodies

Protein Phosphatase 1 Regulatory Subunit 15A antibodies are often published with	Associated citations
Paternally Expressed 3	61.5%
DNA Damage Inducible Transcript 3	23.1%
Caspase-12	15.4%
Decorin	7.7%
Structural Maintenance Of Chromosomes 2	7.7%
Damage Specific DNA Binding Protein 1	7.7%
RAD21 Cohesin Complex Component	7.7%
Protein Phosphatase, Mg2+/Mn2+ Dependent 1D	7.7%
Cell Division Cycle 34	7.7%
Death Associated Protein Kinase 3	7.7%

ELISA Kits

29 Protein Phosphatase 1 Regulatory Subunit 15A ELISA Kits from 3 suppliers

Bac	Bacteria
Bt	Bat
Bv	Bovine
Cel	C.Elegans
Cml	Camel
Cn	Canine
chem	Chemical
Ch	Chicken
Dk	Donkey
Dr	Drosophila
Du	Duck
Eq	Equine
Eu	Eukaryotes
Fe	Feline
Fi	Fish
Fr	Frog
Fu	Fungus
Gt	Goat
Gf	Goldfish
GP	Guinea Pig
Ha	Hamster
Hu	Human
Inv	Invertebrates
Llm	Llama
Mam	Mammals
Mo	Mouse
Pl	Plant
Po	Porcine
Pr	Primate
Pro	Prokaryotes
Rb	Rabbit
Rt	Rat
Sh	Sheep
Sq	Squirrel
Vert	Vertebrates
Vi	Virus
Xe	Xenopus
Yt	Yeast
Zf	Zebrafish

AP	Affinity purification
Bl	Blocking
ChIP	Chromatin Immunoprecipitation
DB	Dot Blot
EMSA	Electron Microscopy
ELISA	Enzyme Linked Immunosorbent Assay
FACS	Flow Cytometry
FA	Functional Assay
GS	Gel Shift
ICC	Immunocytochemistry
ID	Immunodiffusion
IF	Immunofluorescence
IHC-F	Immunohistochemistry frozen
IHC-P	Immunohistochemistry paraffin
IP	Immunoprecipitation
IVT	In vivo targeting
Neu	Neutralising
Pep-ELISA	Peptide ELISA
PLA	Proximity Ligation Assay
RIA	Radioimmunoassay
WB	Western Blot

Protein Map Explorer

177 matching Protein Phosphatase 1 Regulatory Subunit 15A antibodies from 22 suppliers

Top Protein Phosphatase 1 Regulatory Subunit 15A Antibodies

Santa Cruz Biotechnology

Origene

United States Biological

Protein Phosphatase 1 Regulatory Subunit 15A information

Aliases

11 Applications, 8 Species currently selected

Protein Phosphatase 1 Regulatory Subunit 15A antibodies

Santa Cruz Biotechnology

Origene

United States Biological

FineTest

Bio-Rad (formerly AbD Serotec)

St John's Laboratory

ABclonal Technology

Lifespan Biosciences

Atlas Antibodies

GeneTex

Related antibodies

ELISA Kits

All None	61	18	20	17	13	1	6
	WB	IF	IHC-P	FACS	IHC-F	ELISA	ICC	AP	IP	Pep-ELISA	FA
Human	133	81	78	64	63	45	41	8	5	2	1
Mouse	65	53	48	42	39	16	33	6	3	1	1
Rat	49	43	45	35	38	11	32	2	3	1
Primate	33	31	30	31	30	3	22	2
Canine	30	32	31	32	31		23	2
Bovine	5					3			2
Rabbit	1	1	1		1
Bacteria	1	1	1		1