cut -f 2 -d '|' file1.txt | while read A; do wget -q -O - "http://www.uniprot.org/uniprot/${A}.fasta" ; done

This Python script will extract FASTA protein records relating to your IDs of the form Q66LE6, Q9UKV3, etc. This assumes that everything is human. You can also search using 2ABD, ACINU, etc., but it returns more hits

Only tested on Python 2.7

import sys
import argparse
from Bio import Entrez

parser = argparse.ArgumentParser(description='Searches for a human protein sequence by any provided ID or accession number.')
parser.add_argument('-f', action='store', dest='SearchTerms', required=True, help='The column number containing the search terms in the provided file (starting at 1).')
parser.add_argument('-e', action='store', dest='EmailAddress', required=True, help='Entrez requires your email address.')
parser.add_argument('InputFile', help='Input file')

arguments = parser.parse_args()

Entrez.email = arguments.EmailAddress

iSearchTerm_Col = int(arguments.SearchTerms) - 1

with open(arguments.InputFile, 'r') as InputFile:

    for line in InputFile:

        LookupTerm = line.split()[iSearchTerm_Col]

        LookupCommand = 'refseq[FILTER] AND txid9606[Organism] AND {}'.format(LookupTerm)

        handle = Entrez.esearch(db='protein', term=LookupCommand)

        results = Entrez.read(handle)

        handle.close()

        #Lookup the FASTA sequence for each protein by its GeneInfo Identifier (GI) number
        for gi in results['IdList']:
            handle = Entrez.efetch(db='protein', id=gi, rettype='fasta')

            print handle.read()

            handle.close()

Execute it as follows: python ProteinSearch.py -f 1 -e myemail@gmail.com proteinsearch.list

proteinsearch.list contains a single list of your IDs:

Q66LE6

Q9UKV3

...

..

">NP_060931.2 serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B delta isoform isoform a [Homo sapiens] MAGAGGGGCPAGGNDFQWCFSQVKGAIDEDVAEADIISTVEFNYSGDLLATGDKGGRVVIFQREQENKSR PHSRGEYNVYSTFQSHEPEFDYLKSLEIEEKINKIRWLPQQNAAHFLLSTNDKTIKLWKISERDKRAEGY NLKDEDGRLRDPFRITALRVPILKPMDLMVEASPRRIFANAHTYHINSISVNSDHETYLSADDLRINLWH LEITDRSFNIVDIKPANMEELTEVITAAEFHPHQCNVFVYSSSKGTIRLCDMRSSALCDRHSKFFEEPED PSSRSFFSEIISSISDVKFSHSGRYMMTRDYLSVKVWDLNMESRPVETHQVHEYLRSKLCSLYENDCIFD KFECCWNGSDSAIMTGSYNNFFRMFDRDTRRDVTLEASRESSKPRASLKPRKVCTGGKRRKDEISVDSLD FNKKILHTAWHPVDNVIAVAATNNLYIFQDKIN

">NP_001158286.1 apoptotic chromatin condensation inducer in the nucleus isoform 2 [Homo sapiens] MWRRKHPRTSGGTRGVLSGNRGVEYGSGRGHLGTFEGRWRKLPKMPEAVGTDPSTSRKMAELEEVTLDGK PLQALRVTDLKAALEQRGLAKSGQKSALVKRLKGALMLENLQKHSTPHAAFQPNSQIGEEMSQNSFIKQY LEKQQELLRQRLEREAREAAELEEASAESEDEMIHPEGVASLLPPDFQSSLERPELELSRHSPRKSSSIS EEKGDSDDEKPRKGERRSSRVRQARAAKLSEGSQPAEEEEDQETPSRNLRVRADRNLKTEEEEEEEEEEE EDDEEEEGDDEGQKSREAPILKEFKEEGEEIPRVKPEEMMDERPKTRSQEQEVLERGGRFTRSQEEARKS HLARQQQEKEMKTTSPLEEEEREIKSSQGLKEKSKSPSPPRLTEDRKKASLVALPEQTASEEETPPPLLT KEASSPPPHPQLHSEEEIEPMEGPAPPVLIQLSPPNTDADTRELLVSQHTVQLVGGLSPLSSPSDTKAES PAEKVPEESVLPLVQKSTLADYSAQKDLEPESDRSAQPLPLKIEELALAKGITEECLKQPSLEQKEGRRA SHTLLPSHRLKQSADSSSSRSSSSSSSSSRSRSRSPDSSGSRSHSPLRSKQRDVAQARTHANPRGRPKMG SRSTSESRSRSRSRSRSASSNSRKSLSPGVSRDSSTSYTETKDPSSGQEVATPPVPQLQVCEPKERTSTS SSSVQARRLSQPESAEKHVTQRLQPERGSPKKCEAEEAEPPAATQPQTSETQTSHLPESERIHHTVEEKE EVTMDTSENRPENDVPEPPMPIADQVSNDDRPEGSVEDEEKKESSLPKSFKRKISVVSTKGVPAGNSDTE GGQPGRKRRWGASTATTQKKPSISITTESLKEAVVDLHADDSRISEDETERNGDDGTHDKGLKICRTVTQ VVPAEGQENGQREEEEEEKEPEAEPPVPPQVSVEVALPPPAEHEVKKVTLGDTLTRRSISQQKSGVSITI DDPVRTAQVPSPPRGKISNIVHISNLVRPFTLGQLKELLGRTGTLVEEAFWIDKIKSHCFVTYSTVEEAV ATRTALHGVKWPQSNPKFLCADYAEQDELDYHRGLLVDRPSETKTEEQGIPRPLHPPPPPPVQPPQHPRA EQREQERAVREQWAEREREMERRERTRSEREWDRDKVREGPRSRSRSRDRRRKERAKSKEKKSEKKEKAQ EEPPAKLLDDLFRKTKAAPCIYWLPLTDSQIVQKEAERAERAKEREKRRKEQEEEEQKEREKEAERERNR QLEREKRREHSRERDRERERERERDRGDRDRDRERDRERGRERDRRDTKRHSRSRSRSTPVRDRGGRR